./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/rfi003_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/rfi003_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 503cbc793fb2369a7e5308c15a611fe38888f935ec98bb5d473194a0a60e31e4 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 02:30:54,922 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 02:30:55,005 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 02:30:55,009 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 02:30:55,010 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 02:30:55,041 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 02:30:55,042 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 02:30:55,042 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 02:30:55,043 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 02:30:55,044 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 02:30:55,045 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 02:30:55,045 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 02:30:55,046 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 02:30:55,046 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 02:30:55,046 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 02:30:55,046 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 02:30:55,047 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 02:30:55,047 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 02:30:55,047 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 02:30:55,048 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 02:30:55,048 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 02:30:55,049 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 02:30:55,049 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 02:30:55,049 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 02:30:55,050 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 02:30:55,050 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 02:30:55,050 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 02:30:55,051 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 02:30:55,051 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 02:30:55,051 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 02:30:55,052 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 02:30:55,052 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 02:30:55,052 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 02:30:55,053 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 02:30:55,053 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 02:30:55,053 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 02:30:55,053 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 02:30:55,053 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 02:30:55,054 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 02:30:55,054 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 02:30:55,054 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 02:30:55,055 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 02:30:55,055 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 503cbc793fb2369a7e5308c15a611fe38888f935ec98bb5d473194a0a60e31e4 [2024-11-09 02:30:55,312 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 02:30:55,339 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 02:30:55,342 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 02:30:55,343 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 02:30:55,344 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 02:30:55,345 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/rfi003_tso.i [2024-11-09 02:30:56,793 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 02:30:57,054 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 02:30:57,055 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/rfi003_tso.i [2024-11-09 02:30:57,070 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9784c2412/98ca88711b18451f8162347a6923a457/FLAG60fc8cf25 [2024-11-09 02:30:57,085 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9784c2412/98ca88711b18451f8162347a6923a457 [2024-11-09 02:30:57,087 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 02:30:57,088 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 02:30:57,089 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 02:30:57,089 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 02:30:57,095 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 02:30:57,096 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:30:57" (1/1) ... [2024-11-09 02:30:57,097 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f43fb25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:30:57, skipping insertion in model container [2024-11-09 02:30:57,097 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:30:57" (1/1) ... [2024-11-09 02:30:57,148 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 02:30:57,339 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/rfi003_tso.i[944,957] [2024-11-09 02:30:57,577 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 02:30:57,593 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 02:30:57,606 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/rfi003_tso.i[944,957] [2024-11-09 02:30:57,662 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 02:30:57,707 INFO L204 MainTranslator]: Completed translation [2024-11-09 02:30:57,708 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:30:57 WrapperNode [2024-11-09 02:30:57,708 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 02:30:57,709 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 02:30:57,709 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 02:30:57,710 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 02:30:57,717 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:30:57" (1/1) ... [2024-11-09 02:30:57,742 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:30:57" (1/1) ... [2024-11-09 02:30:57,788 INFO L138 Inliner]: procedures = 174, calls = 39, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 168 [2024-11-09 02:30:57,791 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 02:30:57,792 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 02:30:57,793 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 02:30:57,793 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 02:30:57,804 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:30:57" (1/1) ... [2024-11-09 02:30:57,805 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:30:57" (1/1) ... [2024-11-09 02:30:57,809 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:30:57" (1/1) ... [2024-11-09 02:30:57,839 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-09 02:30:57,839 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:30:57" (1/1) ... [2024-11-09 02:30:57,840 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:30:57" (1/1) ... [2024-11-09 02:30:57,850 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:30:57" (1/1) ... [2024-11-09 02:30:57,856 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:30:57" (1/1) ... [2024-11-09 02:30:57,862 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:30:57" (1/1) ... [2024-11-09 02:30:57,864 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:30:57" (1/1) ... [2024-11-09 02:30:57,870 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 02:30:57,873 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 02:30:57,874 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 02:30:57,874 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 02:30:57,875 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:30:57" (1/1) ... [2024-11-09 02:30:57,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 02:30:57,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 02:30:57,909 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 02:30:57,912 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 02:30:57,963 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-09 02:30:57,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 02:30:57,963 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-09 02:30:57,963 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-09 02:30:57,963 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-09 02:30:57,964 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-09 02:30:57,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 02:30:57,964 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-09 02:30:57,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 02:30:57,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 02:30:57,965 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 02:30:58,127 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 02:30:58,129 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 02:30:58,518 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 02:30:58,518 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 02:30:58,775 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 02:30:58,776 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 02:30:58,776 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:30:58 BoogieIcfgContainer [2024-11-09 02:30:58,777 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 02:30:58,780 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 02:30:58,781 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 02:30:58,784 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 02:30:58,784 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 02:30:57" (1/3) ... [2024-11-09 02:30:58,785 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76ad6c37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:30:58, skipping insertion in model container [2024-11-09 02:30:58,785 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:30:57" (2/3) ... [2024-11-09 02:30:58,787 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76ad6c37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:30:58, skipping insertion in model container [2024-11-09 02:30:58,787 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:30:58" (3/3) ... [2024-11-09 02:30:58,788 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi003_tso.i [2024-11-09 02:30:58,804 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 02:30:58,806 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 02:30:58,806 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 02:30:58,856 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 02:30:58,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 39 places, 33 transitions, 74 flow [2024-11-09 02:30:58,924 INFO L124 PetriNetUnfolderBase]: 1/31 cut-off events. [2024-11-09 02:30:58,924 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 02:30:58,928 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38 conditions, 31 events. 1/31 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 52 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 31. Up to 2 conditions per place. [2024-11-09 02:30:58,929 INFO L82 GeneralOperation]: Start removeDead. Operand has 39 places, 33 transitions, 74 flow [2024-11-09 02:30:58,932 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 37 places, 31 transitions, 68 flow [2024-11-09 02:30:58,945 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 02:30:58,953 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;@4b78abaa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 02:30:58,953 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-09 02:30:58,961 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 02:30:58,961 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-09 02:30:58,961 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 02:30:58,961 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:30:58,962 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:30:58,963 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-09 02:30:58,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:30:58,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1718409122, now seen corresponding path program 1 times [2024-11-09 02:30:58,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:30:58,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314105049] [2024-11-09 02:30:58,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:30:58,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:30:59,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:30:59,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:30:59,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:30:59,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314105049] [2024-11-09 02:30:59,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314105049] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:30:59,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:30:59,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 02:30:59,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197917588] [2024-11-09 02:30:59,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:30:59,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 02:30:59,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:30:59,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 02:30:59,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 02:30:59,543 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 33 [2024-11-09 02:30:59,545 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 31 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:30:59,546 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:30:59,546 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 33 [2024-11-09 02:30:59,547 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:30:59,789 INFO L124 PetriNetUnfolderBase]: 249/482 cut-off events. [2024-11-09 02:30:59,791 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 02:30:59,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 922 conditions, 482 events. 249/482 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2462 event pairs, 24 based on Foata normal form. 24/495 useless extension candidates. Maximal degree in co-relation 912. Up to 366 conditions per place. [2024-11-09 02:30:59,799 INFO L140 encePairwiseOnDemand]: 29/33 looper letters, 23 selfloop transitions, 2 changer transitions 2/38 dead transitions. [2024-11-09 02:30:59,800 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 38 transitions, 136 flow [2024-11-09 02:30:59,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 02:30:59,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 02:30:59,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 69 transitions. [2024-11-09 02:30:59,812 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.696969696969697 [2024-11-09 02:30:59,814 INFO L175 Difference]: Start difference. First operand has 37 places, 31 transitions, 68 flow. Second operand 3 states and 69 transitions. [2024-11-09 02:30:59,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 38 transitions, 136 flow [2024-11-09 02:30:59,819 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 38 transitions, 134 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 02:30:59,821 INFO L231 Difference]: Finished difference. Result has 36 places, 28 transitions, 64 flow [2024-11-09 02:30:59,824 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=36, PETRI_TRANSITIONS=28} [2024-11-09 02:30:59,827 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, -1 predicate places. [2024-11-09 02:30:59,828 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 28 transitions, 64 flow [2024-11-09 02:30:59,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:30:59,829 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:30:59,829 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:30:59,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 02:30:59,830 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)] === [2024-11-09 02:30:59,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:30:59,831 INFO L85 PathProgramCache]: Analyzing trace with hash -1142458704, now seen corresponding path program 1 times [2024-11-09 02:30:59,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:30:59,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239594560] [2024-11-09 02:30:59,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:30:59,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:30:59,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:31:00,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:31:00,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:31:00,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239594560] [2024-11-09 02:31:00,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239594560] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:31:00,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:31:00,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 02:31:00,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559886383] [2024-11-09 02:31:00,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:31:00,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 02:31:00,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:31:00,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 02:31:00,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 02:31:00,163 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2024-11-09 02:31:00,164 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 28 transitions, 64 flow. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:31:00,164 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:31:00,164 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2024-11-09 02:31:00,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:31:00,398 INFO L124 PetriNetUnfolderBase]: 268/553 cut-off events. [2024-11-09 02:31:00,398 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2024-11-09 02:31:00,401 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1078 conditions, 553 events. 268/553 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2732 event pairs, 62 based on Foata normal form. 35/563 useless extension candidates. Maximal degree in co-relation 1068. Up to 241 conditions per place. [2024-11-09 02:31:00,403 INFO L140 encePairwiseOnDemand]: 28/33 looper letters, 37 selfloop transitions, 4 changer transitions 1/50 dead transitions. [2024-11-09 02:31:00,403 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 50 transitions, 198 flow [2024-11-09 02:31:00,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 02:31:00,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 02:31:00,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 84 transitions. [2024-11-09 02:31:00,405 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6363636363636364 [2024-11-09 02:31:00,405 INFO L175 Difference]: Start difference. First operand has 36 places, 28 transitions, 64 flow. Second operand 4 states and 84 transitions. [2024-11-09 02:31:00,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 50 transitions, 198 flow [2024-11-09 02:31:00,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 50 transitions, 190 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 02:31:00,408 INFO L231 Difference]: Finished difference. Result has 38 places, 30 transitions, 86 flow [2024-11-09 02:31:00,408 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, 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=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=86, PETRI_PLACES=38, PETRI_TRANSITIONS=30} [2024-11-09 02:31:00,410 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, 1 predicate places. [2024-11-09 02:31:00,411 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 30 transitions, 86 flow [2024-11-09 02:31:00,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:31:00,411 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:31:00,411 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:31:00,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 02:31:00,412 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)] === [2024-11-09 02:31:00,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:31:00,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1130605351, now seen corresponding path program 1 times [2024-11-09 02:31:00,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:31:00,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767779026] [2024-11-09 02:31:00,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:31:00,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:31:00,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:31:00,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:31:00,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:31:00,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767779026] [2024-11-09 02:31:00,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767779026] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:31:00,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:31:00,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 02:31:00,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383921594] [2024-11-09 02:31:00,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:31:00,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 02:31:00,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:31:00,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 02:31:00,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 02:31:00,804 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2024-11-09 02:31:00,806 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 30 transitions, 86 flow. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:31:00,806 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:31:00,806 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2024-11-09 02:31:00,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:31:00,969 INFO L124 PetriNetUnfolderBase]: 134/276 cut-off events. [2024-11-09 02:31:00,970 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2024-11-09 02:31:00,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 645 conditions, 276 events. 134/276 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1017 event pairs, 42 based on Foata normal form. 20/287 useless extension candidates. Maximal degree in co-relation 633. Up to 116 conditions per place. [2024-11-09 02:31:00,974 INFO L140 encePairwiseOnDemand]: 28/33 looper letters, 30 selfloop transitions, 6 changer transitions 1/45 dead transitions. [2024-11-09 02:31:00,974 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 45 transitions, 195 flow [2024-11-09 02:31:00,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 02:31:00,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 02:31:00,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 89 transitions. [2024-11-09 02:31:00,976 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5393939393939394 [2024-11-09 02:31:00,976 INFO L175 Difference]: Start difference. First operand has 38 places, 30 transitions, 86 flow. Second operand 5 states and 89 transitions. [2024-11-09 02:31:00,976 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 45 transitions, 195 flow [2024-11-09 02:31:00,977 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 45 transitions, 186 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-09 02:31:00,978 INFO L231 Difference]: Finished difference. Result has 42 places, 30 transitions, 102 flow [2024-11-09 02:31:00,982 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=102, PETRI_PLACES=42, PETRI_TRANSITIONS=30} [2024-11-09 02:31:00,983 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, 5 predicate places. [2024-11-09 02:31:00,983 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 30 transitions, 102 flow [2024-11-09 02:31:00,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:31:00,983 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:31:00,983 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:31:00,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 02:31:00,984 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)] === [2024-11-09 02:31:00,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:31:00,984 INFO L85 PathProgramCache]: Analyzing trace with hash -303791634, now seen corresponding path program 1 times [2024-11-09 02:31:00,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:31:00,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176420551] [2024-11-09 02:31:00,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:31:00,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:31:01,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:31:05,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:31:05,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:31:05,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176420551] [2024-11-09 02:31:05,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176420551] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:31:05,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:31:05,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 02:31:05,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271845739] [2024-11-09 02:31:05,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:31:05,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 02:31:05,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:31:05,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 02:31:05,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-09 02:31:05,356 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 33 [2024-11-09 02:31:05,357 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 30 transitions, 102 flow. Second operand has 12 states, 12 states have (on average 12.416666666666666) internal successors, (149), 12 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:31:05,357 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:31:05,357 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 33 [2024-11-09 02:31:05,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:31:06,182 INFO L124 PetriNetUnfolderBase]: 148/344 cut-off events. [2024-11-09 02:31:06,183 INFO L125 PetriNetUnfolderBase]: For 116/116 co-relation queries the response was YES. [2024-11-09 02:31:06,184 INFO L83 FinitePrefix]: Finished finitePrefix Result has 777 conditions, 344 events. 148/344 cut-off events. For 116/116 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1389 event pairs, 28 based on Foata normal form. 4/343 useless extension candidates. Maximal degree in co-relation 763. Up to 136 conditions per place. [2024-11-09 02:31:06,185 INFO L140 encePairwiseOnDemand]: 22/33 looper letters, 25 selfloop transitions, 15 changer transitions 16/67 dead transitions. [2024-11-09 02:31:06,185 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 67 transitions, 296 flow [2024-11-09 02:31:06,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 02:31:06,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-09 02:31:06,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 178 transitions. [2024-11-09 02:31:06,187 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4903581267217631 [2024-11-09 02:31:06,188 INFO L175 Difference]: Start difference. First operand has 42 places, 30 transitions, 102 flow. Second operand 11 states and 178 transitions. [2024-11-09 02:31:06,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 67 transitions, 296 flow [2024-11-09 02:31:06,190 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 67 transitions, 262 flow, removed 8 selfloop flow, removed 6 redundant places. [2024-11-09 02:31:06,191 INFO L231 Difference]: Finished difference. Result has 51 places, 41 transitions, 158 flow [2024-11-09 02:31:06,191 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=158, PETRI_PLACES=51, PETRI_TRANSITIONS=41} [2024-11-09 02:31:06,192 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, 14 predicate places. [2024-11-09 02:31:06,192 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 41 transitions, 158 flow [2024-11-09 02:31:06,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.416666666666666) internal successors, (149), 12 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:31:06,193 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:31:06,193 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:31:06,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 02:31:06,193 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)] === [2024-11-09 02:31:06,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:31:06,194 INFO L85 PathProgramCache]: Analyzing trace with hash 56928114, now seen corresponding path program 2 times [2024-11-09 02:31:06,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:31:06,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309977241] [2024-11-09 02:31:06,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:31:06,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:31:06,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:31:08,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:31:08,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:31:08,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309977241] [2024-11-09 02:31:08,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309977241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:31:08,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:31:08,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-09 02:31:08,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048239711] [2024-11-09 02:31:08,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:31:08,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 02:31:08,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:31:08,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 02:31:08,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-09 02:31:08,708 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 33 [2024-11-09 02:31:08,709 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 41 transitions, 158 flow. Second operand has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:31:08,709 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:31:08,709 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 33 [2024-11-09 02:31:08,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:31:09,437 INFO L124 PetriNetUnfolderBase]: 182/434 cut-off events. [2024-11-09 02:31:09,439 INFO L125 PetriNetUnfolderBase]: For 134/138 co-relation queries the response was YES. [2024-11-09 02:31:09,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1088 conditions, 434 events. 182/434 cut-off events. For 134/138 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1972 event pairs, 52 based on Foata normal form. 4/426 useless extension candidates. Maximal degree in co-relation 1072. Up to 132 conditions per place. [2024-11-09 02:31:09,442 INFO L140 encePairwiseOnDemand]: 24/33 looper letters, 19 selfloop transitions, 7 changer transitions 35/72 dead transitions. [2024-11-09 02:31:09,442 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 72 transitions, 387 flow [2024-11-09 02:31:09,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 02:31:09,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-09 02:31:09,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 165 transitions. [2024-11-09 02:31:09,445 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-11-09 02:31:09,445 INFO L175 Difference]: Start difference. First operand has 51 places, 41 transitions, 158 flow. Second operand 10 states and 165 transitions. [2024-11-09 02:31:09,445 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 72 transitions, 387 flow [2024-11-09 02:31:09,447 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 72 transitions, 380 flow, removed 3 selfloop flow, removed 3 redundant places. [2024-11-09 02:31:09,449 INFO L231 Difference]: Finished difference. Result has 59 places, 32 transitions, 137 flow [2024-11-09 02:31:09,450 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=153, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=137, PETRI_PLACES=59, PETRI_TRANSITIONS=32} [2024-11-09 02:31:09,451 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, 22 predicate places. [2024-11-09 02:31:09,452 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 32 transitions, 137 flow [2024-11-09 02:31:09,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:31:09,452 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:31:09,452 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:31:09,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 02:31:09,453 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)] === [2024-11-09 02:31:09,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:31:09,454 INFO L85 PathProgramCache]: Analyzing trace with hash -489657136, now seen corresponding path program 3 times [2024-11-09 02:31:09,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:31:09,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265871566] [2024-11-09 02:31:09,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:31:09,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:31:09,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:31:10,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:31:10,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:31:10,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265871566] [2024-11-09 02:31:10,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265871566] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:31:10,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:31:10,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 02:31:10,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512727258] [2024-11-09 02:31:10,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:31:10,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 02:31:10,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:31:10,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 02:31:10,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-09 02:31:10,259 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 33 [2024-11-09 02:31:10,259 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 32 transitions, 137 flow. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:31:10,259 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:31:10,260 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 33 [2024-11-09 02:31:10,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:31:10,487 INFO L124 PetriNetUnfolderBase]: 60/145 cut-off events. [2024-11-09 02:31:10,487 INFO L125 PetriNetUnfolderBase]: For 44/44 co-relation queries the response was YES. [2024-11-09 02:31:10,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 401 conditions, 145 events. 60/145 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 375 event pairs, 8 based on Foata normal form. 4/147 useless extension candidates. Maximal degree in co-relation 391. Up to 58 conditions per place. [2024-11-09 02:31:10,488 INFO L140 encePairwiseOnDemand]: 26/33 looper letters, 0 selfloop transitions, 0 changer transitions 39/39 dead transitions. [2024-11-09 02:31:10,488 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 39 transitions, 215 flow [2024-11-09 02:31:10,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 02:31:10,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-09 02:31:10,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 102 transitions. [2024-11-09 02:31:10,490 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.38636363636363635 [2024-11-09 02:31:10,491 INFO L175 Difference]: Start difference. First operand has 59 places, 32 transitions, 137 flow. Second operand 8 states and 102 transitions. [2024-11-09 02:31:10,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 39 transitions, 215 flow [2024-11-09 02:31:10,495 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 39 transitions, 172 flow, removed 7 selfloop flow, removed 13 redundant places. [2024-11-09 02:31:10,496 INFO L231 Difference]: Finished difference. Result has 46 places, 0 transitions, 0 flow [2024-11-09 02:31:10,496 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=90, 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=8, PETRI_FLOW=0, PETRI_PLACES=46, PETRI_TRANSITIONS=0} [2024-11-09 02:31:10,497 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, 9 predicate places. [2024-11-09 02:31:10,498 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 0 transitions, 0 flow [2024-11-09 02:31:10,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:31:10,505 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2024-11-09 02:31:10,506 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2024-11-09 02:31:10,506 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-11-09 02:31:10,506 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-11-09 02:31:10,506 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2024-11-09 02:31:10,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 02:31:10,507 INFO L407 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1] [2024-11-09 02:31:10,515 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-09 02:31:10,515 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 02:31:10,523 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 02:31:10 BasicIcfg [2024-11-09 02:31:10,523 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 02:31:10,524 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 02:31:10,524 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 02:31:10,525 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 02:31:10,525 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:30:58" (3/4) ... [2024-11-09 02:31:10,527 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 02:31:10,530 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-09 02:31:10,531 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-09 02:31:10,536 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 75 nodes and edges [2024-11-09 02:31:10,538 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-09 02:31:10,538 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-09 02:31:10,538 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-09 02:31:10,653 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 02:31:10,654 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-09 02:31:10,654 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 02:31:10,655 INFO L158 Benchmark]: Toolchain (without parser) took 13566.61ms. Allocated memory was 151.0MB in the beginning and 664.8MB in the end (delta: 513.8MB). Free memory was 101.7MB in the beginning and 538.5MB in the end (delta: -436.8MB). Peak memory consumption was 79.3MB. Max. memory is 16.1GB. [2024-11-09 02:31:10,655 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 151.0MB. Free memory was 111.3MB in the beginning and 111.1MB in the end (delta: 184.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 02:31:10,655 INFO L158 Benchmark]: CACSL2BoogieTranslator took 619.28ms. Allocated memory is still 151.0MB. Free memory was 101.2MB in the beginning and 73.1MB in the end (delta: 28.1MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-11-09 02:31:10,656 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.66ms. Allocated memory is still 151.0MB. Free memory was 73.1MB in the beginning and 69.4MB in the end (delta: 3.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 02:31:10,656 INFO L158 Benchmark]: Boogie Preprocessor took 80.25ms. Allocated memory is still 151.0MB. Free memory was 69.4MB in the beginning and 64.8MB in the end (delta: 4.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-09 02:31:10,656 INFO L158 Benchmark]: RCFGBuilder took 903.90ms. Allocated memory was 151.0MB in the beginning and 197.1MB in the end (delta: 46.1MB). Free memory was 64.8MB in the beginning and 102.7MB in the end (delta: -37.9MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. [2024-11-09 02:31:10,656 INFO L158 Benchmark]: TraceAbstraction took 11743.86ms. Allocated memory was 197.1MB in the beginning and 664.8MB in the end (delta: 467.7MB). Free memory was 102.7MB in the beginning and 542.7MB in the end (delta: -440.0MB). Peak memory consumption was 27.6MB. Max. memory is 16.1GB. [2024-11-09 02:31:10,657 INFO L158 Benchmark]: Witness Printer took 129.95ms. Allocated memory is still 664.8MB. Free memory was 542.7MB in the beginning and 538.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 02:31:10,658 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 151.0MB. Free memory was 111.3MB in the beginning and 111.1MB in the end (delta: 184.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 619.28ms. Allocated memory is still 151.0MB. Free memory was 101.2MB in the beginning and 73.1MB in the end (delta: 28.1MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.66ms. Allocated memory is still 151.0MB. Free memory was 73.1MB in the beginning and 69.4MB in the end (delta: 3.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 80.25ms. Allocated memory is still 151.0MB. Free memory was 69.4MB in the beginning and 64.8MB in the end (delta: 4.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 903.90ms. Allocated memory was 151.0MB in the beginning and 197.1MB in the end (delta: 46.1MB). Free memory was 64.8MB in the beginning and 102.7MB in the end (delta: -37.9MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. * TraceAbstraction took 11743.86ms. Allocated memory was 197.1MB in the beginning and 664.8MB in the end (delta: 467.7MB). Free memory was 102.7MB in the beginning and 542.7MB in the end (delta: -440.0MB). Peak memory consumption was 27.6MB. Max. memory is 16.1GB. * Witness Printer took 129.95ms. Allocated memory is still 664.8MB. Free memory was 542.7MB in the beginning and 538.5MB 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, 53 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: 11.6s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 257 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 246 mSDsluCounter, 201 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 193 mSDsCounter, 72 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 787 IncrementalHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 72 mSolverCounterUnsat, 8 mSDtfsCounter, 787 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=158occurred in iteration=4, InterpolantAutomatonStates: 41, 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, 0.7s SatisfiabilityAnalysisTime, 8.0s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 106 ConstructedInterpolants, 0 QuantifiedInterpolants, 1207 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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! [2024-11-09 02:31:10,692 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE