./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/rfi000_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f 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-wmm/rfi000_tso.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 5128c539cd3051e20c09e1924eb0951d5be697be251e10d3c281464ed4c436cd --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 10:16:37,551 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 10:16:37,647 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-10 10:16:37,651 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 10:16:37,653 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 10:16:37,682 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 10:16:37,683 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 10:16:37,683 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 10:16:37,684 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 10:16:37,685 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 10:16:37,685 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 10:16:37,686 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 10:16:37,686 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 10:16:37,687 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 10:16:37,689 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 10:16:37,689 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 10:16:37,691 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 10:16:37,691 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 10:16:37,692 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 10:16:37,693 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 10:16:37,693 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 10:16:37,695 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 10:16:37,695 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 10:16:37,695 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 10:16:37,695 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 10:16:37,696 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 10:16:37,696 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 10:16:37,696 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 10:16:37,696 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 10:16:37,697 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 10:16:37,697 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 10:16:37,697 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 10:16:37,697 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:16:37,698 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 10:16:37,698 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 10:16:37,699 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 10:16:37,700 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 10:16:37,700 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 10:16:37,700 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 10:16:37,700 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 10:16:37,700 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 10:16:37,701 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 10:16:37,701 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5128c539cd3051e20c09e1924eb0951d5be697be251e10d3c281464ed4c436cd [2024-11-10 10:16:37,988 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 10:16:38,012 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 10:16:38,016 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 10:16:38,018 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 10:16:38,018 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 10:16:38,019 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/rfi000_tso.i [2024-11-10 10:16:39,489 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 10:16:39,735 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 10:16:39,736 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/rfi000_tso.i [2024-11-10 10:16:39,755 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db7d5b359/26f75adc91334a1bbcaa634bd583ff25/FLAG05e8fc289 [2024-11-10 10:16:39,767 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db7d5b359/26f75adc91334a1bbcaa634bd583ff25 [2024-11-10 10:16:39,769 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 10:16:39,771 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 10:16:39,772 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 10:16:39,772 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 10:16:39,777 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 10:16:39,777 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:16:39" (1/1) ... [2024-11-10 10:16:39,778 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e82d706 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:16:39, skipping insertion in model container [2024-11-10 10:16:39,778 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:16:39" (1/1) ... [2024-11-10 10:16:39,824 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 10:16:40,028 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-wmm/rfi000_tso.i[944,957] [2024-11-10 10:16:40,289 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:16:40,300 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 10:16:40,312 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-wmm/rfi000_tso.i[944,957] [2024-11-10 10:16:40,370 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:16:40,415 INFO L204 MainTranslator]: Completed translation [2024-11-10 10:16:40,416 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:16:40 WrapperNode [2024-11-10 10:16:40,416 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 10:16:40,417 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 10:16:40,418 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 10:16:40,418 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 10:16:40,427 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:16:40" (1/1) ... [2024-11-10 10:16:40,449 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:16:40" (1/1) ... [2024-11-10 10:16:40,496 INFO L138 Inliner]: procedures = 174, calls = 37, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 167 [2024-11-10 10:16:40,501 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 10:16:40,502 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 10:16:40,502 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 10:16:40,503 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 10:16:40,514 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:16:40" (1/1) ... [2024-11-10 10:16:40,515 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:16:40" (1/1) ... [2024-11-10 10:16:40,521 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:16:40" (1/1) ... [2024-11-10 10:16:40,546 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]. [2024-11-10 10:16:40,547 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:16:40" (1/1) ... [2024-11-10 10:16:40,547 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:16:40" (1/1) ... [2024-11-10 10:16:40,561 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:16:40" (1/1) ... [2024-11-10 10:16:40,565 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:16:40" (1/1) ... [2024-11-10 10:16:40,567 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:16:40" (1/1) ... [2024-11-10 10:16:40,569 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:16:40" (1/1) ... [2024-11-10 10:16:40,576 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 10:16:40,579 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 10:16:40,579 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 10:16:40,579 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 10:16:40,580 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:16:40" (1/1) ... [2024-11-10 10:16:40,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:16:40,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 10:16:40,610 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) [2024-11-10 10:16:40,612 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 [2024-11-10 10:16:40,655 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-10 10:16:40,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 10:16:40,655 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-10 10:16:40,655 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-10 10:16:40,655 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-10 10:16:40,655 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-10 10:16:40,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 10:16:40,656 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-10 10:16:40,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 10:16:40,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 10:16:40,658 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 10:16:40,782 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 10:16:40,785 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 10:16:41,211 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 10:16:41,212 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 10:16:41,477 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 10:16:41,478 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 10:16:41,478 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:16:41 BoogieIcfgContainer [2024-11-10 10:16:41,479 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 10:16:41,483 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 10:16:41,483 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 10:16:41,488 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 10:16:41,489 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:16:39" (1/3) ... [2024-11-10 10:16:41,489 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76f585ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:16:41, skipping insertion in model container [2024-11-10 10:16:41,490 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:16:40" (2/3) ... [2024-11-10 10:16:41,490 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76f585ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:16:41, skipping insertion in model container [2024-11-10 10:16:41,491 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:16:41" (3/3) ... [2024-11-10 10:16:41,492 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi000_tso.i [2024-11-10 10:16:41,509 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 10:16:41,510 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-10 10:16:41,510 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 10:16:41,566 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-10 10:16:41,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 32 transitions, 72 flow [2024-11-10 10:16:41,628 INFO L124 PetriNetUnfolderBase]: 1/30 cut-off events. [2024-11-10 10:16:41,629 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 10:16:41,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 30 events. 1/30 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 47 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2024-11-10 10:16:41,635 INFO L82 GeneralOperation]: Start removeDead. Operand has 38 places, 32 transitions, 72 flow [2024-11-10 10:16:41,638 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 36 places, 30 transitions, 66 flow [2024-11-10 10:16:41,646 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 10:16:41,655 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;@2caed0ef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 10:16:41,655 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-10 10:16:41,661 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 10:16:41,662 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2024-11-10 10:16:41,662 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 10:16:41,662 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:16:41,663 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:16:41,663 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-10 10:16:41,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:16:41,668 INFO L85 PathProgramCache]: Analyzing trace with hash -127976664, now seen corresponding path program 1 times [2024-11-10 10:16:41,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:16:41,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028171939] [2024-11-10 10:16:41,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:16:41,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:16:41,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:16:42,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:16:42,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:16:42,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028171939] [2024-11-10 10:16:42,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028171939] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:16:42,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:16:42,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 10:16:42,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270466441] [2024-11-10 10:16:42,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:16:42,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 10:16:42,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:16:42,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 10:16:42,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 10:16:42,226 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 32 [2024-11-10 10:16:42,227 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 30 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2024-11-10 10:16:42,228 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:16:42,228 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 32 [2024-11-10 10:16:42,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:16:42,611 INFO L124 PetriNetUnfolderBase]: 701/1173 cut-off events. [2024-11-10 10:16:42,612 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-10 10:16:42,618 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2337 conditions, 1173 events. 701/1173 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 5560 event pairs, 143 based on Foata normal form. 48/1218 useless extension candidates. Maximal degree in co-relation 2327. Up to 883 conditions per place. [2024-11-10 10:16:42,627 INFO L140 encePairwiseOnDemand]: 28/32 looper letters, 33 selfloop transitions, 2 changer transitions 2/41 dead transitions. [2024-11-10 10:16:42,627 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 41 transitions, 162 flow [2024-11-10 10:16:42,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 10:16:42,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 10:16:42,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 58 transitions. [2024-11-10 10:16:42,640 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6041666666666666 [2024-11-10 10:16:42,642 INFO L175 Difference]: Start difference. First operand has 36 places, 30 transitions, 66 flow. Second operand 3 states and 58 transitions. [2024-11-10 10:16:42,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 41 transitions, 162 flow [2024-11-10 10:16:42,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 41 transitions, 160 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 10:16:42,647 INFO L231 Difference]: Finished difference. Result has 35 places, 27 transitions, 62 flow [2024-11-10 10:16:42,649 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=62, PETRI_PLACES=35, PETRI_TRANSITIONS=27} [2024-11-10 10:16:42,654 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, -1 predicate places. [2024-11-10 10:16:42,655 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 27 transitions, 62 flow [2024-11-10 10:16:42,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2024-11-10 10:16:42,655 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:16:42,655 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:16:42,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 10:16:42,656 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-10 10:16:42,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:16:42,657 INFO L85 PathProgramCache]: Analyzing trace with hash -546696154, now seen corresponding path program 1 times [2024-11-10 10:16:42,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:16:42,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063522303] [2024-11-10 10:16:42,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:16:42,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:16:42,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:16:42,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:16:42,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:16:42,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063522303] [2024-11-10 10:16:42,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063522303] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:16:42,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:16:42,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 10:16:42,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361630566] [2024-11-10 10:16:42,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:16:42,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 10:16:42,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:16:42,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 10:16:42,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 10:16:42,990 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 32 [2024-11-10 10:16:42,990 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 27 transitions, 62 flow. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 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) [2024-11-10 10:16:42,990 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:16:42,990 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 32 [2024-11-10 10:16:42,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:16:43,432 INFO L124 PetriNetUnfolderBase]: 885/1515 cut-off events. [2024-11-10 10:16:43,432 INFO L125 PetriNetUnfolderBase]: For 45/45 co-relation queries the response was YES. [2024-11-10 10:16:43,435 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3071 conditions, 1515 events. 885/1515 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 7574 event pairs, 327 based on Foata normal form. 0/1466 useless extension candidates. Maximal degree in co-relation 3061. Up to 978 conditions per place. [2024-11-10 10:16:43,440 INFO L140 encePairwiseOnDemand]: 25/32 looper letters, 29 selfloop transitions, 3 changer transitions 48/83 dead transitions. [2024-11-10 10:16:43,440 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 83 transitions, 342 flow [2024-11-10 10:16:43,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 10:16:43,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-10 10:16:43,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 122 transitions. [2024-11-10 10:16:43,442 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4765625 [2024-11-10 10:16:43,442 INFO L175 Difference]: Start difference. First operand has 35 places, 27 transitions, 62 flow. Second operand 8 states and 122 transitions. [2024-11-10 10:16:43,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 83 transitions, 342 flow [2024-11-10 10:16:43,445 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 83 transitions, 332 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 10:16:43,447 INFO L231 Difference]: Finished difference. Result has 44 places, 28 transitions, 91 flow [2024-11-10 10:16:43,447 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=91, PETRI_PLACES=44, PETRI_TRANSITIONS=28} [2024-11-10 10:16:43,448 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 8 predicate places. [2024-11-10 10:16:43,448 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 28 transitions, 91 flow [2024-11-10 10:16:43,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 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) [2024-11-10 10:16:43,448 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:16:43,448 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:16:43,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 10:16:43,449 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-10 10:16:43,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:16:43,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1845576433, now seen corresponding path program 1 times [2024-11-10 10:16:43,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:16:43,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21272277] [2024-11-10 10:16:43,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:16:43,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:16:43,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:16:44,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:16:44,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:16:44,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21272277] [2024-11-10 10:16:44,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21272277] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:16:44,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:16:44,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 10:16:44,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985443899] [2024-11-10 10:16:44,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:16:44,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 10:16:44,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:16:44,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 10:16:44,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 10:16:44,335 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 32 [2024-11-10 10:16:44,336 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 28 transitions, 91 flow. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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) [2024-11-10 10:16:44,336 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:16:44,336 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 32 [2024-11-10 10:16:44,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:16:45,061 INFO L124 PetriNetUnfolderBase]: 726/1244 cut-off events. [2024-11-10 10:16:45,061 INFO L125 PetriNetUnfolderBase]: For 803/803 co-relation queries the response was YES. [2024-11-10 10:16:45,064 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3081 conditions, 1244 events. 726/1244 cut-off events. For 803/803 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 5823 event pairs, 190 based on Foata normal form. 51/1292 useless extension candidates. Maximal degree in co-relation 3066. Up to 654 conditions per place. [2024-11-10 10:16:45,069 INFO L140 encePairwiseOnDemand]: 22/32 looper letters, 38 selfloop transitions, 7 changer transitions 49/97 dead transitions. [2024-11-10 10:16:45,069 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 97 transitions, 483 flow [2024-11-10 10:16:45,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 10:16:45,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-10 10:16:45,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 145 transitions. [2024-11-10 10:16:45,072 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.453125 [2024-11-10 10:16:45,072 INFO L175 Difference]: Start difference. First operand has 44 places, 28 transitions, 91 flow. Second operand 10 states and 145 transitions. [2024-11-10 10:16:45,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 97 transitions, 483 flow [2024-11-10 10:16:45,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 97 transitions, 460 flow, removed 10 selfloop flow, removed 3 redundant places. [2024-11-10 10:16:45,078 INFO L231 Difference]: Finished difference. Result has 53 places, 33 transitions, 168 flow [2024-11-10 10:16:45,078 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=168, PETRI_PLACES=53, PETRI_TRANSITIONS=33} [2024-11-10 10:16:45,079 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 17 predicate places. [2024-11-10 10:16:45,079 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 33 transitions, 168 flow [2024-11-10 10:16:45,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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) [2024-11-10 10:16:45,080 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:16:45,080 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:16:45,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 10:16:45,080 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-10 10:16:45,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:16:45,081 INFO L85 PathProgramCache]: Analyzing trace with hash -477477670, now seen corresponding path program 1 times [2024-11-10 10:16:45,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:16:45,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347541023] [2024-11-10 10:16:45,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:16:45,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:16:45,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:16:45,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:16:45,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:16:45,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347541023] [2024-11-10 10:16:45,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347541023] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:16:45,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:16:45,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 10:16:45,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062155855] [2024-11-10 10:16:45,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:16:45,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 10:16:45,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:16:45,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 10:16:45,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 10:16:45,351 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 32 [2024-11-10 10:16:45,352 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 33 transitions, 168 flow. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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) [2024-11-10 10:16:45,352 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:16:45,352 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 32 [2024-11-10 10:16:45,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:16:45,723 INFO L124 PetriNetUnfolderBase]: 631/1094 cut-off events. [2024-11-10 10:16:45,723 INFO L125 PetriNetUnfolderBase]: For 2325/2325 co-relation queries the response was YES. [2024-11-10 10:16:45,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3738 conditions, 1094 events. 631/1094 cut-off events. For 2325/2325 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 4932 event pairs, 245 based on Foata normal form. 35/1126 useless extension candidates. Maximal degree in co-relation 3715. Up to 588 conditions per place. [2024-11-10 10:16:45,732 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 38 selfloop transitions, 3 changer transitions 39/83 dead transitions. [2024-11-10 10:16:45,733 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 83 transitions, 596 flow [2024-11-10 10:16:45,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 10:16:45,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-10 10:16:45,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 100 transitions. [2024-11-10 10:16:45,734 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44642857142857145 [2024-11-10 10:16:45,734 INFO L175 Difference]: Start difference. First operand has 53 places, 33 transitions, 168 flow. Second operand 7 states and 100 transitions. [2024-11-10 10:16:45,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 83 transitions, 596 flow [2024-11-10 10:16:45,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 83 transitions, 572 flow, removed 11 selfloop flow, removed 5 redundant places. [2024-11-10 10:16:45,745 INFO L231 Difference]: Finished difference. Result has 53 places, 33 transitions, 171 flow [2024-11-10 10:16:45,745 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=171, PETRI_PLACES=53, PETRI_TRANSITIONS=33} [2024-11-10 10:16:45,746 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 17 predicate places. [2024-11-10 10:16:45,746 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 33 transitions, 171 flow [2024-11-10 10:16:45,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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) [2024-11-10 10:16:45,747 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:16:45,747 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:16:45,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 10:16:45,747 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-10 10:16:45,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:16:45,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1884299572, now seen corresponding path program 1 times [2024-11-10 10:16:45,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:16:45,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442046850] [2024-11-10 10:16:45,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:16:45,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:16:45,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:16:46,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:16:46,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:16:46,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442046850] [2024-11-10 10:16:46,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442046850] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:16:46,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:16:46,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 10:16:46,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530192434] [2024-11-10 10:16:46,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:16:46,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 10:16:46,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:16:46,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 10:16:46,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-10 10:16:46,815 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 32 [2024-11-10 10:16:46,816 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 33 transitions, 171 flow. Second operand has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 9 states have internal predecessors, (60), 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) [2024-11-10 10:16:46,816 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:16:46,816 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 32 [2024-11-10 10:16:46,816 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:16:47,290 INFO L124 PetriNetUnfolderBase]: 586/1016 cut-off events. [2024-11-10 10:16:47,291 INFO L125 PetriNetUnfolderBase]: For 2071/2071 co-relation queries the response was YES. [2024-11-10 10:16:47,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3480 conditions, 1016 events. 586/1016 cut-off events. For 2071/2071 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 4355 event pairs, 256 based on Foata normal form. 27/1041 useless extension candidates. Maximal degree in co-relation 3455. Up to 803 conditions per place. [2024-11-10 10:16:47,300 INFO L140 encePairwiseOnDemand]: 25/32 looper letters, 44 selfloop transitions, 7 changer transitions 29/83 dead transitions. [2024-11-10 10:16:47,300 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 83 transitions, 555 flow [2024-11-10 10:16:47,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 10:16:47,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 10:16:47,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 116 transitions. [2024-11-10 10:16:47,302 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4027777777777778 [2024-11-10 10:16:47,302 INFO L175 Difference]: Start difference. First operand has 53 places, 33 transitions, 171 flow. Second operand 9 states and 116 transitions. [2024-11-10 10:16:47,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 83 transitions, 555 flow [2024-11-10 10:16:47,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 83 transitions, 524 flow, removed 10 selfloop flow, removed 7 redundant places. [2024-11-10 10:16:47,311 INFO L231 Difference]: Finished difference. Result has 56 places, 38 transitions, 200 flow [2024-11-10 10:16:47,312 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=153, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=200, PETRI_PLACES=56, PETRI_TRANSITIONS=38} [2024-11-10 10:16:47,313 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 20 predicate places. [2024-11-10 10:16:47,313 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 38 transitions, 200 flow [2024-11-10 10:16:47,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 9 states have internal predecessors, (60), 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) [2024-11-10 10:16:47,314 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:16:47,314 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:16:47,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 10:16:47,314 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-10 10:16:47,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:16:47,314 INFO L85 PathProgramCache]: Analyzing trace with hash -444823507, now seen corresponding path program 1 times [2024-11-10 10:16:47,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:16:47,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206766039] [2024-11-10 10:16:47,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:16:47,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:16:47,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:16:47,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:16:47,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:16:47,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206766039] [2024-11-10 10:16:47,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206766039] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:16:47,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:16:47,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 10:16:47,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264517981] [2024-11-10 10:16:47,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:16:47,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 10:16:47,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:16:47,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 10:16:47,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 10:16:47,622 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 32 [2024-11-10 10:16:47,623 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 38 transitions, 200 flow. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 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) [2024-11-10 10:16:47,623 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:16:47,623 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 32 [2024-11-10 10:16:47,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:16:47,827 INFO L124 PetriNetUnfolderBase]: 380/697 cut-off events. [2024-11-10 10:16:47,828 INFO L125 PetriNetUnfolderBase]: For 1100/1100 co-relation queries the response was YES. [2024-11-10 10:16:47,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2317 conditions, 697 events. 380/697 cut-off events. For 1100/1100 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2921 event pairs, 86 based on Foata normal form. 53/747 useless extension candidates. Maximal degree in co-relation 2291. Up to 302 conditions per place. [2024-11-10 10:16:47,834 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 55 selfloop transitions, 4 changer transitions 1/63 dead transitions. [2024-11-10 10:16:47,835 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 63 transitions, 446 flow [2024-11-10 10:16:47,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 10:16:47,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 10:16:47,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 75 transitions. [2024-11-10 10:16:47,836 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5859375 [2024-11-10 10:16:47,837 INFO L175 Difference]: Start difference. First operand has 56 places, 38 transitions, 200 flow. Second operand 4 states and 75 transitions. [2024-11-10 10:16:47,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 63 transitions, 446 flow [2024-11-10 10:16:47,840 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 63 transitions, 433 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-11-10 10:16:47,842 INFO L231 Difference]: Finished difference. Result has 51 places, 37 transitions, 197 flow [2024-11-10 10:16:47,842 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=171, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=197, PETRI_PLACES=51, PETRI_TRANSITIONS=37} [2024-11-10 10:16:47,843 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 15 predicate places. [2024-11-10 10:16:47,843 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 37 transitions, 197 flow [2024-11-10 10:16:47,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 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) [2024-11-10 10:16:47,843 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:16:47,844 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:16:47,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 10:16:47,844 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-10 10:16:47,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:16:47,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1326514500, now seen corresponding path program 1 times [2024-11-10 10:16:47,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:16:47,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777239126] [2024-11-10 10:16:47,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:16:47,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:16:47,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:16:49,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:16:49,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:16:49,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777239126] [2024-11-10 10:16:49,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777239126] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:16:49,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:16:49,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 10:16:49,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988417878] [2024-11-10 10:16:49,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:16:49,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 10:16:49,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:16:49,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 10:16:49,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-10 10:16:49,959 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 32 [2024-11-10 10:16:49,960 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 37 transitions, 197 flow. Second operand has 10 states, 10 states have (on average 6.8) internal successors, (68), 10 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:16:49,960 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:16:49,960 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 32 [2024-11-10 10:16:49,960 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:16:50,737 INFO L124 PetriNetUnfolderBase]: 512/940 cut-off events. [2024-11-10 10:16:50,738 INFO L125 PetriNetUnfolderBase]: For 1435/1435 co-relation queries the response was YES. [2024-11-10 10:16:50,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3276 conditions, 940 events. 512/940 cut-off events. For 1435/1435 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 4237 event pairs, 171 based on Foata normal form. 14/951 useless extension candidates. Maximal degree in co-relation 3251. Up to 427 conditions per place. [2024-11-10 10:16:50,745 INFO L140 encePairwiseOnDemand]: 22/32 looper letters, 58 selfloop transitions, 11 changer transitions 23/95 dead transitions. [2024-11-10 10:16:50,745 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 95 transitions, 712 flow [2024-11-10 10:16:50,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 10:16:50,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-10 10:16:50,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 114 transitions. [2024-11-10 10:16:50,747 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4453125 [2024-11-10 10:16:50,747 INFO L175 Difference]: Start difference. First operand has 51 places, 37 transitions, 197 flow. Second operand 8 states and 114 transitions. [2024-11-10 10:16:50,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 95 transitions, 712 flow [2024-11-10 10:16:50,750 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 95 transitions, 689 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-11-10 10:16:50,752 INFO L231 Difference]: Finished difference. Result has 60 places, 43 transitions, 277 flow [2024-11-10 10:16:50,752 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=277, PETRI_PLACES=60, PETRI_TRANSITIONS=43} [2024-11-10 10:16:50,753 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 24 predicate places. [2024-11-10 10:16:50,753 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 43 transitions, 277 flow [2024-11-10 10:16:50,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.8) internal successors, (68), 10 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:16:50,753 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:16:50,754 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:16:50,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 10:16:50,754 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-10 10:16:50,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:16:50,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1343342690, now seen corresponding path program 2 times [2024-11-10 10:16:50,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:16:50,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092846321] [2024-11-10 10:16:50,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:16:50,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:16:50,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:16:51,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:16:51,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:16:51,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092846321] [2024-11-10 10:16:51,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092846321] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:16:51,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:16:51,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 10:16:51,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726874203] [2024-11-10 10:16:51,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:16:51,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 10:16:51,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:16:51,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 10:16:51,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 10:16:51,027 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 32 [2024-11-10 10:16:51,027 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 43 transitions, 277 flow. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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) [2024-11-10 10:16:51,027 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:16:51,027 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 32 [2024-11-10 10:16:51,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:16:51,193 INFO L124 PetriNetUnfolderBase]: 290/552 cut-off events. [2024-11-10 10:16:51,194 INFO L125 PetriNetUnfolderBase]: For 1169/1169 co-relation queries the response was YES. [2024-11-10 10:16:51,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1986 conditions, 552 events. 290/552 cut-off events. For 1169/1169 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2235 event pairs, 68 based on Foata normal form. 44/593 useless extension candidates. Maximal degree in co-relation 1957. Up to 254 conditions per place. [2024-11-10 10:16:51,198 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 44 selfloop transitions, 6 changer transitions 9/62 dead transitions. [2024-11-10 10:16:51,198 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 62 transitions, 506 flow [2024-11-10 10:16:51,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 10:16:51,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 10:16:51,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 74 transitions. [2024-11-10 10:16:51,200 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4625 [2024-11-10 10:16:51,200 INFO L175 Difference]: Start difference. First operand has 60 places, 43 transitions, 277 flow. Second operand 5 states and 74 transitions. [2024-11-10 10:16:51,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 62 transitions, 506 flow [2024-11-10 10:16:51,203 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 62 transitions, 446 flow, removed 23 selfloop flow, removed 8 redundant places. [2024-11-10 10:16:51,204 INFO L231 Difference]: Finished difference. Result has 56 places, 42 transitions, 245 flow [2024-11-10 10:16:51,205 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=245, PETRI_PLACES=56, PETRI_TRANSITIONS=42} [2024-11-10 10:16:51,206 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 20 predicate places. [2024-11-10 10:16:51,207 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 42 transitions, 245 flow [2024-11-10 10:16:51,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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) [2024-11-10 10:16:51,207 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:16:51,207 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:16:51,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 10:16:51,208 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-10 10:16:51,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:16:51,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1588355942, now seen corresponding path program 1 times [2024-11-10 10:16:51,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:16:51,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216835811] [2024-11-10 10:16:51,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:16:51,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:16:51,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:16:53,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:16:53,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:16:53,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216835811] [2024-11-10 10:16:53,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216835811] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:16:53,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:16:53,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 10:16:53,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121025285] [2024-11-10 10:16:53,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:16:53,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 10:16:53,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:16:53,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 10:16:53,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-10 10:16:53,229 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 32 [2024-11-10 10:16:53,229 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 42 transitions, 245 flow. Second operand has 10 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 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) [2024-11-10 10:16:53,229 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:16:53,229 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 32 [2024-11-10 10:16:53,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:16:53,723 INFO L124 PetriNetUnfolderBase]: 285/553 cut-off events. [2024-11-10 10:16:53,723 INFO L125 PetriNetUnfolderBase]: For 821/821 co-relation queries the response was YES. [2024-11-10 10:16:53,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1932 conditions, 553 events. 285/553 cut-off events. For 821/821 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2175 event pairs, 93 based on Foata normal form. 4/554 useless extension candidates. Maximal degree in co-relation 1907. Up to 213 conditions per place. [2024-11-10 10:16:53,726 INFO L140 encePairwiseOnDemand]: 22/32 looper letters, 27 selfloop transitions, 7 changer transitions 39/76 dead transitions. [2024-11-10 10:16:53,727 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 76 transitions, 567 flow [2024-11-10 10:16:53,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 10:16:53,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 10:16:53,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 105 transitions. [2024-11-10 10:16:53,729 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3645833333333333 [2024-11-10 10:16:53,729 INFO L175 Difference]: Start difference. First operand has 56 places, 42 transitions, 245 flow. Second operand 9 states and 105 transitions. [2024-11-10 10:16:53,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 76 transitions, 567 flow [2024-11-10 10:16:53,733 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 76 transitions, 472 flow, removed 25 selfloop flow, removed 8 redundant places. [2024-11-10 10:16:53,736 INFO L231 Difference]: Finished difference. Result has 60 places, 32 transitions, 166 flow [2024-11-10 10:16:53,736 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=203, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=166, PETRI_PLACES=60, PETRI_TRANSITIONS=32} [2024-11-10 10:16:53,737 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 24 predicate places. [2024-11-10 10:16:53,737 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 32 transitions, 166 flow [2024-11-10 10:16:53,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 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) [2024-11-10 10:16:53,738 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:16:53,738 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:16:53,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 10:16:53,739 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-10 10:16:53,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:16:53,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1311689712, now seen corresponding path program 2 times [2024-11-10 10:16:53,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:16:53,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068775239] [2024-11-10 10:16:53,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:16:53,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:16:53,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:16:54,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:16:54,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:16:54,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068775239] [2024-11-10 10:16:54,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068775239] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:16:54,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:16:54,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 10:16:54,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187585868] [2024-11-10 10:16:54,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:16:54,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 10:16:54,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:16:54,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 10:16:54,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 10:16:54,320 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 32 [2024-11-10 10:16:54,320 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 32 transitions, 166 flow. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 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) [2024-11-10 10:16:54,320 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:16:54,320 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 32 [2024-11-10 10:16:54,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:16:54,453 INFO L124 PetriNetUnfolderBase]: 85/174 cut-off events. [2024-11-10 10:16:54,454 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2024-11-10 10:16:54,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 560 conditions, 174 events. 85/174 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 438 event pairs, 6 based on Foata normal form. 4/177 useless extension candidates. Maximal degree in co-relation 547. Up to 109 conditions per place. [2024-11-10 10:16:54,455 INFO L140 encePairwiseOnDemand]: 26/32 looper letters, 0 selfloop transitions, 0 changer transitions 39/39 dead transitions. [2024-11-10 10:16:54,455 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 39 transitions, 260 flow [2024-11-10 10:16:54,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 10:16:54,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 10:16:54,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 62 transitions. [2024-11-10 10:16:54,456 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3229166666666667 [2024-11-10 10:16:54,456 INFO L175 Difference]: Start difference. First operand has 60 places, 32 transitions, 166 flow. Second operand 6 states and 62 transitions. [2024-11-10 10:16:54,456 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 39 transitions, 260 flow [2024-11-10 10:16:54,457 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 39 transitions, 203 flow, removed 9 selfloop flow, removed 16 redundant places. [2024-11-10 10:16:54,457 INFO L231 Difference]: Finished difference. Result has 44 places, 0 transitions, 0 flow [2024-11-10 10:16:54,457 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=44, PETRI_TRANSITIONS=0} [2024-11-10 10:16:54,458 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 8 predicate places. [2024-11-10 10:16:54,458 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 0 transitions, 0 flow [2024-11-10 10:16:54,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 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) [2024-11-10 10:16:54,465 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2024-11-10 10:16:54,466 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2024-11-10 10:16:54,466 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-11-10 10:16:54,466 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-11-10 10:16:54,466 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2024-11-10 10:16:54,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 10:16:54,467 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-10 10:16:54,472 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-10 10:16:54,473 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-10 10:16:54,479 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 10:16:54 BasicIcfg [2024-11-10 10:16:54,481 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-10 10:16:54,482 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-10 10:16:54,482 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-10 10:16:54,482 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-10 10:16:54,482 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:16:41" (3/4) ... [2024-11-10 10:16:54,484 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-10 10:16:54,487 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-10 10:16:54,487 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-10 10:16:54,492 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 38 nodes and edges [2024-11-10 10:16:54,493 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-10 10:16:54,493 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-10 10:16:54,494 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-10 10:16:54,580 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-10 10:16:54,580 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-10 10:16:54,581 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-10 10:16:54,581 INFO L158 Benchmark]: Toolchain (without parser) took 14810.57ms. Allocated memory was 155.2MB in the beginning and 549.5MB in the end (delta: 394.3MB). Free memory was 98.6MB in the beginning and 296.8MB in the end (delta: -198.2MB). Peak memory consumption was 197.4MB. Max. memory is 16.1GB. [2024-11-10 10:16:54,581 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 155.2MB. Free memory is still 118.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 10:16:54,582 INFO L158 Benchmark]: CACSL2BoogieTranslator took 643.93ms. Allocated memory is still 155.2MB. Free memory was 98.6MB in the beginning and 70.4MB in the end (delta: 28.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-11-10 10:16:54,582 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.66ms. Allocated memory is still 155.2MB. Free memory was 70.4MB in the beginning and 66.8MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-10 10:16:54,582 INFO L158 Benchmark]: Boogie Preprocessor took 74.66ms. Allocated memory is still 155.2MB. Free memory was 66.8MB in the beginning and 62.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-10 10:16:54,582 INFO L158 Benchmark]: IcfgBuilder took 900.67ms. Allocated memory was 155.2MB in the beginning and 203.4MB in the end (delta: 48.2MB). Free memory was 62.6MB in the beginning and 126.8MB in the end (delta: -64.1MB). Peak memory consumption was 38.1MB. Max. memory is 16.1GB. [2024-11-10 10:16:54,583 INFO L158 Benchmark]: TraceAbstraction took 12998.45ms. Allocated memory was 203.4MB in the beginning and 549.5MB in the end (delta: 346.0MB). Free memory was 125.7MB in the beginning and 301.0MB in the end (delta: -175.2MB). Peak memory consumption was 171.8MB. Max. memory is 16.1GB. [2024-11-10 10:16:54,583 INFO L158 Benchmark]: Witness Printer took 98.99ms. Allocated memory is still 549.5MB. Free memory was 301.0MB in the beginning and 296.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-10 10:16:54,584 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 155.2MB. Free memory is still 118.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 643.93ms. Allocated memory is still 155.2MB. Free memory was 98.6MB in the beginning and 70.4MB in the end (delta: 28.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.66ms. Allocated memory is still 155.2MB. Free memory was 70.4MB in the beginning and 66.8MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.66ms. Allocated memory is still 155.2MB. Free memory was 66.8MB in the beginning and 62.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * IcfgBuilder took 900.67ms. Allocated memory was 155.2MB in the beginning and 203.4MB in the end (delta: 48.2MB). Free memory was 62.6MB in the beginning and 126.8MB in the end (delta: -64.1MB). Peak memory consumption was 38.1MB. Max. memory is 16.1GB. * TraceAbstraction took 12998.45ms. Allocated memory was 203.4MB in the beginning and 549.5MB in the end (delta: 346.0MB). Free memory was 125.7MB in the beginning and 301.0MB in the end (delta: -175.2MB). Peak memory consumption was 171.8MB. Max. memory is 16.1GB. * Witness Printer took 98.99ms. Allocated memory is still 549.5MB. Free memory was 301.0MB in the beginning and 296.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 18]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 51 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 12.9s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 4.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 449 SdHoareTripleChecker+Valid, 2.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 446 mSDsluCounter, 16 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16 mSDsCounter, 69 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1584 IncrementalHoareTripleChecker+Invalid, 1653 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 69 mSolverCounterUnsat, 0 mSDtfsCounter, 1584 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 85 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=277occurred in iteration=7, InterpolantAutomatonStates: 69, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 7.6s InterpolantComputationTime, 175 NumberOfCodeBlocks, 175 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 165 ConstructedInterpolants, 0 QuantifiedInterpolants, 1330 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-10 10:16:54,615 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE