./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/test-easy10.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/test-easy10.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 24421fae56d27ddfd314bb85e4431c40a1e6738a845aa97472d8668d2b4dde52 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 02:51:00,897 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 02:51:00,958 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 02:51:00,964 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 02:51:00,965 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 02:51:01,001 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 02:51:01,003 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 02:51:01,004 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 02:51:01,004 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 02:51:01,006 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 02:51:01,007 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 02:51:01,007 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 02:51:01,007 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 02:51:01,008 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 02:51:01,009 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 02:51:01,010 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 02:51:01,010 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 02:51:01,010 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 02:51:01,010 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 02:51:01,011 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 02:51:01,011 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 02:51:01,011 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 02:51:01,013 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 02:51:01,013 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 02:51:01,014 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 02:51:01,014 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 02:51:01,014 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 02:51:01,014 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 02:51:01,014 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 02:51:01,015 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 02:51:01,015 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 02:51:01,015 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 02:51:01,015 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 02:51:01,016 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 02:51:01,016 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 02:51:01,018 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 02:51:01,018 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 02:51:01,018 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 02:51:01,018 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 02:51:01,019 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 02:51:01,019 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 02:51:01,020 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 02:51:01,020 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 24421fae56d27ddfd314bb85e4431c40a1e6738a845aa97472d8668d2b4dde52 [2024-11-09 02:51:01,298 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 02:51:01,323 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 02:51:01,326 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 02:51:01,328 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 02:51:01,328 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 02:51:01,330 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/test-easy10.wvr.c [2024-11-09 02:51:02,758 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 02:51:02,948 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 02:51:02,948 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/test-easy10.wvr.c [2024-11-09 02:51:02,956 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e6edbe42/855e6d9a17d34a1483a798def2712e06/FLAG6317834ed [2024-11-09 02:51:02,973 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e6edbe42/855e6d9a17d34a1483a798def2712e06 [2024-11-09 02:51:02,976 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 02:51:02,978 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 02:51:02,982 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 02:51:02,982 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 02:51:02,988 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 02:51:02,989 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:51:02" (1/1) ... [2024-11-09 02:51:02,990 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ef65eb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:51:02, skipping insertion in model container [2024-11-09 02:51:02,990 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:51:02" (1/1) ... [2024-11-09 02:51:03,046 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 02:51:03,273 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/test-easy10.wvr.c[2547,2560] [2024-11-09 02:51:03,280 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 02:51:03,294 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 02:51:03,326 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/test-easy10.wvr.c[2547,2560] [2024-11-09 02:51:03,329 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 02:51:03,350 INFO L204 MainTranslator]: Completed translation [2024-11-09 02:51:03,351 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:51:03 WrapperNode [2024-11-09 02:51:03,351 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 02:51:03,352 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 02:51:03,352 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 02:51:03,352 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 02:51:03,360 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:51:03" (1/1) ... [2024-11-09 02:51:03,373 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:51:03" (1/1) ... [2024-11-09 02:51:03,406 INFO L138 Inliner]: procedures = 20, calls = 16, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 147 [2024-11-09 02:51:03,407 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 02:51:03,409 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 02:51:03,409 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 02:51:03,409 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 02:51:03,420 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:51:03" (1/1) ... [2024-11-09 02:51:03,421 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:51:03" (1/1) ... [2024-11-09 02:51:03,423 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:51:03" (1/1) ... [2024-11-09 02:51:03,437 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 02:51:03,437 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:51:03" (1/1) ... [2024-11-09 02:51:03,438 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:51:03" (1/1) ... [2024-11-09 02:51:03,444 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:51:03" (1/1) ... [2024-11-09 02:51:03,446 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:51:03" (1/1) ... [2024-11-09 02:51:03,447 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:51:03" (1/1) ... [2024-11-09 02:51:03,448 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:51:03" (1/1) ... [2024-11-09 02:51:03,450 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 02:51:03,451 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 02:51:03,451 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 02:51:03,451 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 02:51:03,452 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:51:03" (1/1) ... [2024-11-09 02:51:03,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 02:51:03,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 02:51:03,503 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 02:51:03,507 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 02:51:03,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 02:51:03,558 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-09 02:51:03,558 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-09 02:51:03,558 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-09 02:51:03,558 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-09 02:51:03,558 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-09 02:51:03,558 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-09 02:51:03,558 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-09 02:51:03,558 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-09 02:51:03,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 02:51:03,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 02:51:03,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 02:51:03,560 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 02:51:03,676 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 02:51:03,678 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 02:51:03,926 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 02:51:03,926 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 02:51:04,094 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 02:51:04,094 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 02:51:04,095 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:51:04 BoogieIcfgContainer [2024-11-09 02:51:04,095 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 02:51:04,097 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 02:51:04,097 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 02:51:04,101 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 02:51:04,101 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 02:51:02" (1/3) ... [2024-11-09 02:51:04,102 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19f5ad41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:51:04, skipping insertion in model container [2024-11-09 02:51:04,103 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:51:03" (2/3) ... [2024-11-09 02:51:04,103 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19f5ad41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:51:04, skipping insertion in model container [2024-11-09 02:51:04,103 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:51:04" (3/3) ... [2024-11-09 02:51:04,105 INFO L112 eAbstractionObserver]: Analyzing ICFG test-easy10.wvr.c [2024-11-09 02:51:04,122 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 02:51:04,122 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 02:51:04,122 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 02:51:04,194 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-09 02:51:04,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 73 places, 60 transitions, 148 flow [2024-11-09 02:51:04,269 INFO L124 PetriNetUnfolderBase]: 0/56 cut-off events. [2024-11-09 02:51:04,269 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-09 02:51:04,272 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 56 events. 0/56 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 99 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-11-09 02:51:04,272 INFO L82 GeneralOperation]: Start removeDead. Operand has 73 places, 60 transitions, 148 flow [2024-11-09 02:51:04,277 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 55 transitions, 134 flow [2024-11-09 02:51:04,285 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 02:51:04,293 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;@448d7451, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 02:51:04,293 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-09 02:51:04,322 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 02:51:04,323 INFO L124 PetriNetUnfolderBase]: 0/54 cut-off events. [2024-11-09 02:51:04,323 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-09 02:51:04,323 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:51:04,324 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:51:04,324 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-09 02:51:04,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:51:04,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1956989108, now seen corresponding path program 1 times [2024-11-09 02:51:04,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:51:04,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647638361] [2024-11-09 02:51:04,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:51:04,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:51:04,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:51:04,930 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 02:51:04,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:51:04,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647638361] [2024-11-09 02:51:04,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647638361] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:51:04,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:51:04,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 02:51:04,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493742962] [2024-11-09 02:51:04,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:51:04,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 02:51:04,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:51:04,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 02:51:04,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 02:51:04,972 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 60 [2024-11-09 02:51:04,975 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 55 transitions, 134 flow. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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 02:51:04,975 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:51:04,976 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 60 [2024-11-09 02:51:04,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:51:05,263 INFO L124 PetriNetUnfolderBase]: 597/1149 cut-off events. [2024-11-09 02:51:05,265 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2024-11-09 02:51:05,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2184 conditions, 1149 events. 597/1149 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 7045 event pairs, 142 based on Foata normal form. 25/1126 useless extension candidates. Maximal degree in co-relation 2084. Up to 853 conditions per place. [2024-11-09 02:51:05,286 INFO L140 encePairwiseOnDemand]: 57/60 looper letters, 34 selfloop transitions, 2 changer transitions 0/64 dead transitions. [2024-11-09 02:51:05,287 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 64 transitions, 230 flow [2024-11-09 02:51:05,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 02:51:05,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 02:51:05,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 133 transitions. [2024-11-09 02:51:05,302 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7388888888888889 [2024-11-09 02:51:05,304 INFO L175 Difference]: Start difference. First operand has 68 places, 55 transitions, 134 flow. Second operand 3 states and 133 transitions. [2024-11-09 02:51:05,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 64 transitions, 230 flow [2024-11-09 02:51:05,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 64 transitions, 210 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-11-09 02:51:05,318 INFO L231 Difference]: Finished difference. Result has 63 places, 55 transitions, 126 flow [2024-11-09 02:51:05,320 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=126, PETRI_PLACES=63, PETRI_TRANSITIONS=55} [2024-11-09 02:51:05,326 INFO L277 CegarLoopForPetriNet]: 68 programPoint places, -5 predicate places. [2024-11-09 02:51:05,326 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 55 transitions, 126 flow [2024-11-09 02:51:05,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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 02:51:05,327 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:51:05,327 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:51:05,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 02:51:05,328 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-09 02:51:05,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:51:05,329 INFO L85 PathProgramCache]: Analyzing trace with hash -211321158, now seen corresponding path program 2 times [2024-11-09 02:51:05,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:51:05,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573993204] [2024-11-09 02:51:05,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:51:05,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:51:05,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:51:05,571 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 02:51:05,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:51:05,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573993204] [2024-11-09 02:51:05,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573993204] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:51:05,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:51:05,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 02:51:05,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848840531] [2024-11-09 02:51:05,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:51:05,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 02:51:05,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:51:05,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 02:51:05,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 02:51:05,578 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 60 [2024-11-09 02:51:05,578 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 55 transitions, 126 flow. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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 02:51:05,578 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:51:05,578 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 60 [2024-11-09 02:51:05,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:51:05,746 INFO L124 PetriNetUnfolderBase]: 507/1023 cut-off events. [2024-11-09 02:51:05,747 INFO L125 PetriNetUnfolderBase]: For 110/110 co-relation queries the response was YES. [2024-11-09 02:51:05,751 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1897 conditions, 1023 events. 507/1023 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 5972 event pairs, 156 based on Foata normal form. 25/1007 useless extension candidates. Maximal degree in co-relation 1864. Up to 645 conditions per place. [2024-11-09 02:51:05,757 INFO L140 encePairwiseOnDemand]: 57/60 looper letters, 32 selfloop transitions, 2 changer transitions 0/62 dead transitions. [2024-11-09 02:51:05,757 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 62 transitions, 212 flow [2024-11-09 02:51:05,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 02:51:05,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 02:51:05,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 131 transitions. [2024-11-09 02:51:05,759 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7277777777777777 [2024-11-09 02:51:05,760 INFO L175 Difference]: Start difference. First operand has 63 places, 55 transitions, 126 flow. Second operand 3 states and 131 transitions. [2024-11-09 02:51:05,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 62 transitions, 212 flow [2024-11-09 02:51:05,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 62 transitions, 208 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 02:51:05,762 INFO L231 Difference]: Finished difference. Result has 64 places, 55 transitions, 130 flow [2024-11-09 02:51:05,762 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=130, PETRI_PLACES=64, PETRI_TRANSITIONS=55} [2024-11-09 02:51:05,763 INFO L277 CegarLoopForPetriNet]: 68 programPoint places, -4 predicate places. [2024-11-09 02:51:05,763 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 55 transitions, 130 flow [2024-11-09 02:51:05,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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 02:51:05,764 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:51:05,764 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:51:05,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 02:51:05,764 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-09 02:51:05,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:51:05,765 INFO L85 PathProgramCache]: Analyzing trace with hash -214292212, now seen corresponding path program 3 times [2024-11-09 02:51:05,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:51:05,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180849199] [2024-11-09 02:51:05,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:51:05,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:51:05,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:51:05,915 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 02:51:05,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:51:05,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180849199] [2024-11-09 02:51:05,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180849199] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:51:05,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:51:05,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 02:51:05,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885957289] [2024-11-09 02:51:05,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:51:05,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 02:51:05,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:51:05,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 02:51:05,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 02:51:05,925 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 60 [2024-11-09 02:51:05,925 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 55 transitions, 130 flow. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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 02:51:05,927 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:51:05,927 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 60 [2024-11-09 02:51:05,927 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:51:06,063 INFO L124 PetriNetUnfolderBase]: 507/985 cut-off events. [2024-11-09 02:51:06,064 INFO L125 PetriNetUnfolderBase]: For 117/121 co-relation queries the response was YES. [2024-11-09 02:51:06,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1932 conditions, 985 events. 507/985 cut-off events. For 117/121 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 5680 event pairs, 122 based on Foata normal form. 20/977 useless extension candidates. Maximal degree in co-relation 1641. Up to 733 conditions per place. [2024-11-09 02:51:06,094 INFO L140 encePairwiseOnDemand]: 57/60 looper letters, 36 selfloop transitions, 2 changer transitions 0/66 dead transitions. [2024-11-09 02:51:06,094 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 66 transitions, 233 flow [2024-11-09 02:51:06,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 02:51:06,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 02:51:06,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 135 transitions. [2024-11-09 02:51:06,098 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.75 [2024-11-09 02:51:06,099 INFO L175 Difference]: Start difference. First operand has 64 places, 55 transitions, 130 flow. Second operand 3 states and 135 transitions. [2024-11-09 02:51:06,099 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 66 transitions, 233 flow [2024-11-09 02:51:06,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 66 transitions, 229 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 02:51:06,102 INFO L231 Difference]: Finished difference. Result has 65 places, 55 transitions, 134 flow [2024-11-09 02:51:06,102 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=134, PETRI_PLACES=65, PETRI_TRANSITIONS=55} [2024-11-09 02:51:06,103 INFO L277 CegarLoopForPetriNet]: 68 programPoint places, -3 predicate places. [2024-11-09 02:51:06,104 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 55 transitions, 134 flow [2024-11-09 02:51:06,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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 02:51:06,104 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:51:06,104 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:51:06,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 02:51:06,105 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-09 02:51:06,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:51:06,106 INFO L85 PathProgramCache]: Analyzing trace with hash 2104338960, now seen corresponding path program 4 times [2024-11-09 02:51:06,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:51:06,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80746339] [2024-11-09 02:51:06,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:51:06,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:51:06,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:51:06,267 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 02:51:06,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:51:06,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80746339] [2024-11-09 02:51:06,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80746339] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:51:06,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:51:06,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 02:51:06,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019267052] [2024-11-09 02:51:06,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:51:06,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 02:51:06,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:51:06,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 02:51:06,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 02:51:06,275 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 60 [2024-11-09 02:51:06,275 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 55 transitions, 134 flow. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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 02:51:06,276 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:51:06,276 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 60 [2024-11-09 02:51:06,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:51:06,432 INFO L124 PetriNetUnfolderBase]: 549/1083 cut-off events. [2024-11-09 02:51:06,434 INFO L125 PetriNetUnfolderBase]: For 251/269 co-relation queries the response was YES. [2024-11-09 02:51:06,437 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2194 conditions, 1083 events. 549/1083 cut-off events. For 251/269 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 6281 event pairs, 156 based on Foata normal form. 14/1046 useless extension candidates. Maximal degree in co-relation 2164. Up to 705 conditions per place. [2024-11-09 02:51:06,442 INFO L140 encePairwiseOnDemand]: 57/60 looper letters, 34 selfloop transitions, 2 changer transitions 0/64 dead transitions. [2024-11-09 02:51:06,443 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 64 transitions, 231 flow [2024-11-09 02:51:06,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 02:51:06,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 02:51:06,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 133 transitions. [2024-11-09 02:51:06,445 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7388888888888889 [2024-11-09 02:51:06,445 INFO L175 Difference]: Start difference. First operand has 65 places, 55 transitions, 134 flow. Second operand 3 states and 133 transitions. [2024-11-09 02:51:06,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 64 transitions, 231 flow [2024-11-09 02:51:06,447 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 64 transitions, 227 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 02:51:06,449 INFO L231 Difference]: Finished difference. Result has 66 places, 55 transitions, 138 flow [2024-11-09 02:51:06,449 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=138, PETRI_PLACES=66, PETRI_TRANSITIONS=55} [2024-11-09 02:51:06,450 INFO L277 CegarLoopForPetriNet]: 68 programPoint places, -2 predicate places. [2024-11-09 02:51:06,451 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 55 transitions, 138 flow [2024-11-09 02:51:06,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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 02:51:06,451 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:51:06,452 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:51:06,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 02:51:06,452 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-09 02:51:06,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:51:06,453 INFO L85 PathProgramCache]: Analyzing trace with hash 1404001800, now seen corresponding path program 5 times [2024-11-09 02:51:06,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:51:06,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862158024] [2024-11-09 02:51:06,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:51:06,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:51:06,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:51:08,571 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 02:51:08,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:51:08,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862158024] [2024-11-09 02:51:08,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862158024] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:51:08,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:51:08,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-09 02:51:08,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363498751] [2024-11-09 02:51:08,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:51:08,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 02:51:08,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:51:08,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 02:51:08,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-11-09 02:51:08,738 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 60 [2024-11-09 02:51:08,739 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 55 transitions, 138 flow. Second operand has 14 states, 14 states have (on average 16.285714285714285) internal successors, (228), 14 states have internal predecessors, (228), 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 02:51:08,739 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:51:08,739 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 60 [2024-11-09 02:51:08,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:51:12,095 INFO L124 PetriNetUnfolderBase]: 15512/22322 cut-off events. [2024-11-09 02:51:12,097 INFO L125 PetriNetUnfolderBase]: For 3889/3889 co-relation queries the response was YES. [2024-11-09 02:51:12,142 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48416 conditions, 22322 events. 15512/22322 cut-off events. For 3889/3889 co-relation queries the response was YES. Maximal size of possible extension queue 527. Compared 131223 event pairs, 2112 based on Foata normal form. 1/22315 useless extension candidates. Maximal degree in co-relation 20942. Up to 6001 conditions per place. [2024-11-09 02:51:12,345 INFO L140 encePairwiseOnDemand]: 45/60 looper letters, 214 selfloop transitions, 15 changer transitions 18/256 dead transitions. [2024-11-09 02:51:12,345 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 256 transitions, 1119 flow [2024-11-09 02:51:12,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 02:51:12,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-09 02:51:12,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 443 transitions. [2024-11-09 02:51:12,349 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4922222222222222 [2024-11-09 02:51:12,349 INFO L175 Difference]: Start difference. First operand has 66 places, 55 transitions, 138 flow. Second operand 15 states and 443 transitions. [2024-11-09 02:51:12,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 256 transitions, 1119 flow [2024-11-09 02:51:12,352 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 256 transitions, 1115 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 02:51:12,356 INFO L231 Difference]: Finished difference. Result has 89 places, 66 transitions, 235 flow [2024-11-09 02:51:12,356 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=235, PETRI_PLACES=89, PETRI_TRANSITIONS=66} [2024-11-09 02:51:12,359 INFO L277 CegarLoopForPetriNet]: 68 programPoint places, 21 predicate places. [2024-11-09 02:51:12,359 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 66 transitions, 235 flow [2024-11-09 02:51:12,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 16.285714285714285) internal successors, (228), 14 states have internal predecessors, (228), 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 02:51:12,360 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:51:12,360 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:51:12,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 02:51:12,361 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-09 02:51:12,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:51:12,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1577836536, now seen corresponding path program 6 times [2024-11-09 02:51:12,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:51:12,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763737573] [2024-11-09 02:51:12,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:51:12,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:51:12,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:51:14,133 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 02:51:14,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:51:14,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763737573] [2024-11-09 02:51:14,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763737573] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:51:14,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:51:14,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-09 02:51:14,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378555115] [2024-11-09 02:51:14,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:51:14,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 02:51:14,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:51:14,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 02:51:14,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2024-11-09 02:51:14,360 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 60 [2024-11-09 02:51:14,361 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 66 transitions, 235 flow. Second operand has 14 states, 14 states have (on average 16.285714285714285) internal successors, (228), 14 states have internal predecessors, (228), 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 02:51:14,361 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:51:14,361 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 60 [2024-11-09 02:51:14,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:51:20,896 INFO L124 PetriNetUnfolderBase]: 44972/65046 cut-off events. [2024-11-09 02:51:20,896 INFO L125 PetriNetUnfolderBase]: For 46767/46767 co-relation queries the response was YES. [2024-11-09 02:51:21,174 INFO L83 FinitePrefix]: Finished finitePrefix Result has 174370 conditions, 65046 events. 44972/65046 cut-off events. For 46767/46767 co-relation queries the response was YES. Maximal size of possible extension queue 1922. Compared 446513 event pairs, 7165 based on Foata normal form. 1/65040 useless extension candidates. Maximal degree in co-relation 174188. Up to 16978 conditions per place. [2024-11-09 02:51:21,418 INFO L140 encePairwiseOnDemand]: 43/60 looper letters, 264 selfloop transitions, 27 changer transitions 10/310 dead transitions. [2024-11-09 02:51:21,418 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 310 transitions, 1737 flow [2024-11-09 02:51:21,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 02:51:21,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-09 02:51:21,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 448 transitions. [2024-11-09 02:51:21,421 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49777777777777776 [2024-11-09 02:51:21,421 INFO L175 Difference]: Start difference. First operand has 89 places, 66 transitions, 235 flow. Second operand 15 states and 448 transitions. [2024-11-09 02:51:21,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 310 transitions, 1737 flow [2024-11-09 02:51:22,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 310 transitions, 1695 flow, removed 15 selfloop flow, removed 4 redundant places. [2024-11-09 02:51:22,241 INFO L231 Difference]: Finished difference. Result has 109 places, 86 transitions, 469 flow [2024-11-09 02:51:22,241 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=469, PETRI_PLACES=109, PETRI_TRANSITIONS=86} [2024-11-09 02:51:22,242 INFO L277 CegarLoopForPetriNet]: 68 programPoint places, 41 predicate places. [2024-11-09 02:51:22,242 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 86 transitions, 469 flow [2024-11-09 02:51:22,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 16.285714285714285) internal successors, (228), 14 states have internal predecessors, (228), 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 02:51:22,243 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:51:22,243 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:51:22,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 02:51:22,244 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-09 02:51:22,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:51:22,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1144622834, now seen corresponding path program 7 times [2024-11-09 02:51:22,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:51:22,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956719878] [2024-11-09 02:51:22,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:51:22,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:51:22,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:51:23,834 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 02:51:23,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:51:23,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956719878] [2024-11-09 02:51:23,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956719878] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:51:23,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:51:23,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-09 02:51:23,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721226291] [2024-11-09 02:51:23,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:51:23,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 02:51:23,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:51:23,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 02:51:23,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2024-11-09 02:51:23,946 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 60 [2024-11-09 02:51:23,947 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 86 transitions, 469 flow. Second operand has 14 states, 14 states have (on average 16.285714285714285) internal successors, (228), 14 states have internal predecessors, (228), 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 02:51:23,947 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:51:23,947 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 60 [2024-11-09 02:51:23,947 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:51:35,280 INFO L124 PetriNetUnfolderBase]: 82077/119021 cut-off events. [2024-11-09 02:51:35,281 INFO L125 PetriNetUnfolderBase]: For 206087/206087 co-relation queries the response was YES. [2024-11-09 02:51:35,984 INFO L83 FinitePrefix]: Finished finitePrefix Result has 369923 conditions, 119021 events. 82077/119021 cut-off events. For 206087/206087 co-relation queries the response was YES. Maximal size of possible extension queue 3719. Compared 890610 event pairs, 15472 based on Foata normal form. 1/119016 useless extension candidates. Maximal degree in co-relation 369503. Up to 31426 conditions per place. [2024-11-09 02:51:36,424 INFO L140 encePairwiseOnDemand]: 45/60 looper letters, 303 selfloop transitions, 41 changer transitions 10/363 dead transitions. [2024-11-09 02:51:36,424 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 363 transitions, 2556 flow [2024-11-09 02:51:36,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 02:51:36,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-09 02:51:36,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 454 transitions. [2024-11-09 02:51:36,426 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5044444444444445 [2024-11-09 02:51:36,426 INFO L175 Difference]: Start difference. First operand has 109 places, 86 transitions, 469 flow. Second operand 15 states and 454 transitions. [2024-11-09 02:51:36,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 363 transitions, 2556 flow [2024-11-09 02:51:40,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 363 transitions, 2498 flow, removed 23 selfloop flow, removed 3 redundant places. [2024-11-09 02:51:40,800 INFO L231 Difference]: Finished difference. Result has 131 places, 119 transitions, 940 flow [2024-11-09 02:51:40,800 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=453, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=940, PETRI_PLACES=131, PETRI_TRANSITIONS=119} [2024-11-09 02:51:40,801 INFO L277 CegarLoopForPetriNet]: 68 programPoint places, 63 predicate places. [2024-11-09 02:51:40,801 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 119 transitions, 940 flow [2024-11-09 02:51:40,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 16.285714285714285) internal successors, (228), 14 states have internal predecessors, (228), 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 02:51:40,802 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:51:40,802 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:51:40,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 02:51:40,803 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-09 02:51:40,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:51:40,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1333237722, now seen corresponding path program 8 times [2024-11-09 02:51:40,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:51:40,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763734957] [2024-11-09 02:51:40,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:51:40,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:51:40,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:51:42,567 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 02:51:42,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:51:42,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763734957] [2024-11-09 02:51:42,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763734957] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:51:42,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:51:42,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-09 02:51:42,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794955311] [2024-11-09 02:51:42,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:51:42,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 02:51:42,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:51:42,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 02:51:42,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-09 02:51:42,621 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 60 [2024-11-09 02:51:42,621 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 119 transitions, 940 flow. Second operand has 14 states, 14 states have (on average 16.285714285714285) internal successors, (228), 14 states have internal predecessors, (228), 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 02:51:42,621 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:51:42,621 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 60 [2024-11-09 02:51:42,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:51:59,245 INFO L124 PetriNetUnfolderBase]: 116797/170000 cut-off events. [2024-11-09 02:51:59,245 INFO L125 PetriNetUnfolderBase]: For 517668/517668 co-relation queries the response was YES. [2024-11-09 02:52:01,004 INFO L83 FinitePrefix]: Finished finitePrefix Result has 588256 conditions, 170000 events. 116797/170000 cut-off events. For 517668/517668 co-relation queries the response was YES. Maximal size of possible extension queue 5544. Compared 1338195 event pairs, 25311 based on Foata normal form. 1/169998 useless extension candidates. Maximal degree in co-relation 587553. Up to 44524 conditions per place. [2024-11-09 02:52:01,638 INFO L140 encePairwiseOnDemand]: 44/60 looper letters, 304 selfloop transitions, 73 changer transitions 12/398 dead transitions. [2024-11-09 02:52:01,638 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 398 transitions, 3395 flow [2024-11-09 02:52:01,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 02:52:01,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-09 02:52:01,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 449 transitions. [2024-11-09 02:52:01,641 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4988888888888889 [2024-11-09 02:52:01,641 INFO L175 Difference]: Start difference. First operand has 131 places, 119 transitions, 940 flow. Second operand 15 states and 449 transitions. [2024-11-09 02:52:01,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 398 transitions, 3395 flow [2024-11-09 02:52:08,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 398 transitions, 3355 flow, removed 19 selfloop flow, removed 2 redundant places. [2024-11-09 02:52:08,609 INFO L231 Difference]: Finished difference. Result has 153 places, 154 transitions, 1634 flow [2024-11-09 02:52:08,609 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=926, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1634, PETRI_PLACES=153, PETRI_TRANSITIONS=154} [2024-11-09 02:52:08,610 INFO L277 CegarLoopForPetriNet]: 68 programPoint places, 85 predicate places. [2024-11-09 02:52:08,610 INFO L471 AbstractCegarLoop]: Abstraction has has 153 places, 154 transitions, 1634 flow [2024-11-09 02:52:08,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 16.285714285714285) internal successors, (228), 14 states have internal predecessors, (228), 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 02:52:08,610 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:52:08,610 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:52:08,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 02:52:08,611 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-09 02:52:08,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:52:08,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1199825348, now seen corresponding path program 9 times [2024-11-09 02:52:08,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:52:08,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641859242] [2024-11-09 02:52:08,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:52:08,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:52:08,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:52:09,899 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 02:52:09,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:52:09,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641859242] [2024-11-09 02:52:09,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641859242] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:52:09,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:52:09,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-09 02:52:09,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520212227] [2024-11-09 02:52:09,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:52:09,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 02:52:09,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:52:09,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 02:52:09,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-09 02:52:10,003 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 60 [2024-11-09 02:52:10,004 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 154 transitions, 1634 flow. Second operand has 14 states, 14 states have (on average 16.285714285714285) internal successors, (228), 14 states have internal predecessors, (228), 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 02:52:10,004 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:52:10,004 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 60 [2024-11-09 02:52:10,004 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand