./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/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/parallel-ticket-3.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 11bff6cd42e59c1eface46e47cb7e4e4f51a04703472e58b1bb7c25b58842408 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 13:47:44,400 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 13:47:44,469 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 13:47:44,472 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 13:47:44,474 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 13:47:44,495 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 13:47:44,497 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 13:47:44,498 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 13:47:44,498 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 13:47:44,499 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 13:47:44,500 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 13:47:44,500 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 13:47:44,500 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 13:47:44,501 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 13:47:44,501 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 13:47:44,502 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 13:47:44,503 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 13:47:44,503 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 13:47:44,503 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 13:47:44,503 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 13:47:44,506 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 13:47:44,507 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 13:47:44,507 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 13:47:44,507 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 13:47:44,507 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 13:47:44,507 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 13:47:44,507 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 13:47:44,508 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 13:47:44,508 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 13:47:44,508 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 13:47:44,508 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 13:47:44,508 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 13:47:44,508 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 13:47:44,509 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 13:47:44,509 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 13:47:44,509 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 13:47:44,509 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 13:47:44,509 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 13:47:44,509 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 13:47:44,510 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 13:47:44,510 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 13:47:44,510 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 13:47:44,510 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 11bff6cd42e59c1eface46e47cb7e4e4f51a04703472e58b1bb7c25b58842408 [2024-11-22 13:47:44,720 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 13:47:44,736 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 13:47:44,739 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 13:47:44,740 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 13:47:44,740 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 13:47:44,741 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c [2024-11-22 13:47:46,014 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 13:47:46,161 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 13:47:46,161 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c [2024-11-22 13:47:46,170 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa165502a/7e4671a4fcb34f29b15cb5ef7e29e6b4/FLAGc3479f62a [2024-11-22 13:47:46,572 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa165502a/7e4671a4fcb34f29b15cb5ef7e29e6b4 [2024-11-22 13:47:46,574 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 13:47:46,575 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 13:47:46,576 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 13:47:46,576 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 13:47:46,580 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 13:47:46,581 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:47:46" (1/1) ... [2024-11-22 13:47:46,581 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d34604 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:47:46, skipping insertion in model container [2024-11-22 13:47:46,582 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:47:46" (1/1) ... [2024-11-22 13:47:46,597 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 13:47:46,757 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/parallel-ticket-3.wvr.c[2331,2344] [2024-11-22 13:47:46,762 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 13:47:46,769 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 13:47:46,786 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/parallel-ticket-3.wvr.c[2331,2344] [2024-11-22 13:47:46,787 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 13:47:46,800 INFO L204 MainTranslator]: Completed translation [2024-11-22 13:47:46,800 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:47:46 WrapperNode [2024-11-22 13:47:46,801 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 13:47:46,802 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 13:47:46,802 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 13:47:46,802 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 13:47:46,812 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:47:46" (1/1) ... [2024-11-22 13:47:46,820 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:47:46" (1/1) ... [2024-11-22 13:47:46,836 INFO L138 Inliner]: procedures = 19, calls = 14, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 140 [2024-11-22 13:47:46,837 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 13:47:46,838 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 13:47:46,838 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 13:47:46,838 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 13:47:46,846 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:47:46" (1/1) ... [2024-11-22 13:47:46,847 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:47:46" (1/1) ... [2024-11-22 13:47:46,848 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:47:46" (1/1) ... [2024-11-22 13:47:46,859 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]. [2024-11-22 13:47:46,863 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:47:46" (1/1) ... [2024-11-22 13:47:46,864 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:47:46" (1/1) ... [2024-11-22 13:47:46,867 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:47:46" (1/1) ... [2024-11-22 13:47:46,868 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:47:46" (1/1) ... [2024-11-22 13:47:46,869 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:47:46" (1/1) ... [2024-11-22 13:47:46,870 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:47:46" (1/1) ... [2024-11-22 13:47:46,871 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 13:47:46,872 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 13:47:46,872 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 13:47:46,872 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 13:47:46,873 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:47:46" (1/1) ... [2024-11-22 13:47:46,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 13:47:46,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 13:47:46,899 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) [2024-11-22 13:47:46,903 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 [2024-11-22 13:47:46,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 13:47:46,934 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-22 13:47:46,934 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-22 13:47:46,935 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-22 13:47:46,935 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-22 13:47:46,935 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-22 13:47:46,935 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-22 13:47:46,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 13:47:46,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 13:47:46,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 13:47:46,936 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-22 13:47:47,078 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 13:47:47,081 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 13:47:47,230 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-22 13:47:47,230 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 13:47:47,342 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 13:47:47,342 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-22 13:47:47,342 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:47:47 BoogieIcfgContainer [2024-11-22 13:47:47,342 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 13:47:47,344 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 13:47:47,344 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 13:47:47,347 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 13:47:47,348 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:47:46" (1/3) ... [2024-11-22 13:47:47,348 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23b033b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:47:47, skipping insertion in model container [2024-11-22 13:47:47,349 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:47:46" (2/3) ... [2024-11-22 13:47:47,349 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23b033b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:47:47, skipping insertion in model container [2024-11-22 13:47:47,350 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:47:47" (3/3) ... [2024-11-22 13:47:47,350 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-3.wvr.c [2024-11-22 13:47:47,363 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 13:47:47,364 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 13:47:47,364 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-22 13:47:47,402 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-22 13:47:47,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 55 places, 47 transitions, 115 flow [2024-11-22 13:47:47,453 INFO L124 PetriNetUnfolderBase]: 2/44 cut-off events. [2024-11-22 13:47:47,454 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-22 13:47:47,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 44 events. 2/44 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 59 event pairs, 0 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2024-11-22 13:47:47,457 INFO L82 GeneralOperation]: Start removeDead. Operand has 55 places, 47 transitions, 115 flow [2024-11-22 13:47:47,459 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 51 places, 43 transitions, 104 flow [2024-11-22 13:47:47,465 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 13:47:47,470 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;@77b04abb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 13:47:47,470 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-22 13:47:47,490 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 13:47:47,491 INFO L124 PetriNetUnfolderBase]: 2/42 cut-off events. [2024-11-22 13:47:47,491 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-22 13:47:47,494 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 13:47:47,494 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] [2024-11-22 13:47:47,495 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 1 more)] === [2024-11-22 13:47:47,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:47:47,499 INFO L85 PathProgramCache]: Analyzing trace with hash 177276219, now seen corresponding path program 1 times [2024-11-22 13:47:47,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:47:47,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319490257] [2024-11-22 13:47:47,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:47:47,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:47:47,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:47:47,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 13:47:47,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:47:47,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319490257] [2024-11-22 13:47:47,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319490257] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:47:47,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:47:47,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 13:47:47,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860997710] [2024-11-22 13:47:47,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:47:47,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 13:47:47,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:47:47,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 13:47:47,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 13:47:47,892 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 47 [2024-11-22 13:47:47,893 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 43 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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) [2024-11-22 13:47:47,894 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 13:47:47,894 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 47 [2024-11-22 13:47:47,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 13:47:48,175 INFO L124 PetriNetUnfolderBase]: 1388/2193 cut-off events. [2024-11-22 13:47:48,178 INFO L125 PetriNetUnfolderBase]: For 178/178 co-relation queries the response was YES. [2024-11-22 13:47:48,184 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4425 conditions, 2193 events. 1388/2193 cut-off events. For 178/178 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 11565 event pairs, 608 based on Foata normal form. 1/2086 useless extension candidates. Maximal degree in co-relation 3985. Up to 1117 conditions per place. [2024-11-22 13:47:48,197 INFO L140 encePairwiseOnDemand]: 41/47 looper letters, 44 selfloop transitions, 5 changer transitions 1/63 dead transitions. [2024-11-22 13:47:48,197 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 63 transitions, 256 flow [2024-11-22 13:47:48,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 13:47:48,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 13:47:48,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 99 transitions. [2024-11-22 13:47:48,207 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7021276595744681 [2024-11-22 13:47:48,208 INFO L175 Difference]: Start difference. First operand has 51 places, 43 transitions, 104 flow. Second operand 3 states and 99 transitions. [2024-11-22 13:47:48,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 63 transitions, 256 flow [2024-11-22 13:47:48,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 63 transitions, 236 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-11-22 13:47:48,220 INFO L231 Difference]: Finished difference. Result has 48 places, 45 transitions, 117 flow [2024-11-22 13:47:48,222 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=117, PETRI_PLACES=48, PETRI_TRANSITIONS=45} [2024-11-22 13:47:48,226 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, -3 predicate places. [2024-11-22 13:47:48,226 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 45 transitions, 117 flow [2024-11-22 13:47:48,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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) [2024-11-22 13:47:48,227 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 13:47:48,227 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] [2024-11-22 13:47:48,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 13:47:48,228 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 1 more)] === [2024-11-22 13:47:48,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:47:48,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1059488094, now seen corresponding path program 1 times [2024-11-22 13:47:48,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:47:48,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296642703] [2024-11-22 13:47:48,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:47:48,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:47:48,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:47:48,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 13:47:48,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:47:48,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296642703] [2024-11-22 13:47:48,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296642703] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:47:48,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:47:48,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 13:47:48,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405077046] [2024-11-22 13:47:48,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:47:48,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 13:47:48,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:47:48,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 13:47:48,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 13:47:48,323 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 47 [2024-11-22 13:47:48,323 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 45 transitions, 117 flow. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 13:47:48,324 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 13:47:48,324 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 47 [2024-11-22 13:47:48,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 13:47:48,581 INFO L124 PetriNetUnfolderBase]: 2053/3190 cut-off events. [2024-11-22 13:47:48,581 INFO L125 PetriNetUnfolderBase]: For 45/45 co-relation queries the response was YES. [2024-11-22 13:47:48,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6469 conditions, 3190 events. 2053/3190 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 16553 event pairs, 1611 based on Foata normal form. 0/3146 useless extension candidates. Maximal degree in co-relation 4806. Up to 2732 conditions per place. [2024-11-22 13:47:48,594 INFO L140 encePairwiseOnDemand]: 38/47 looper letters, 43 selfloop transitions, 7 changer transitions 0/61 dead transitions. [2024-11-22 13:47:48,594 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 61 transitions, 251 flow [2024-11-22 13:47:48,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 13:47:48,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 13:47:48,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 88 transitions. [2024-11-22 13:47:48,596 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.624113475177305 [2024-11-22 13:47:48,597 INFO L175 Difference]: Start difference. First operand has 48 places, 45 transitions, 117 flow. Second operand 3 states and 88 transitions. [2024-11-22 13:47:48,597 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 61 transitions, 251 flow [2024-11-22 13:47:48,598 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 61 transitions, 246 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 13:47:48,599 INFO L231 Difference]: Finished difference. Result has 51 places, 48 transitions, 156 flow [2024-11-22 13:47:48,600 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=156, PETRI_PLACES=51, PETRI_TRANSITIONS=48} [2024-11-22 13:47:48,601 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 0 predicate places. [2024-11-22 13:47:48,601 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 48 transitions, 156 flow [2024-11-22 13:47:48,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 13:47:48,602 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 13:47:48,602 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] [2024-11-22 13:47:48,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 13:47:48,603 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 1 more)] === [2024-11-22 13:47:48,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:47:48,605 INFO L85 PathProgramCache]: Analyzing trace with hash 708667368, now seen corresponding path program 1 times [2024-11-22 13:47:48,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:47:48,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189430933] [2024-11-22 13:47:48,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:47:48,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:47:48,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:47:48,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 13:47:48,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:47:48,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189430933] [2024-11-22 13:47:48,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189430933] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:47:48,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:47:48,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 13:47:48,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722764821] [2024-11-22 13:47:48,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:47:48,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 13:47:48,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:47:48,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 13:47:48,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 13:47:48,771 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-22 13:47:48,771 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 48 transitions, 156 flow. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 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) [2024-11-22 13:47:48,771 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 13:47:48,772 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-22 13:47:48,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 13:47:49,147 INFO L124 PetriNetUnfolderBase]: 2102/3781 cut-off events. [2024-11-22 13:47:49,148 INFO L125 PetriNetUnfolderBase]: For 228/234 co-relation queries the response was YES. [2024-11-22 13:47:49,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7815 conditions, 3781 events. 2102/3781 cut-off events. For 228/234 co-relation queries the response was YES. Maximal size of possible extension queue 256. Compared 25407 event pairs, 685 based on Foata normal form. 38/3753 useless extension candidates. Maximal degree in co-relation 5960. Up to 1318 conditions per place. [2024-11-22 13:47:49,162 INFO L140 encePairwiseOnDemand]: 37/47 looper letters, 56 selfloop transitions, 15 changer transitions 7/97 dead transitions. [2024-11-22 13:47:49,163 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 97 transitions, 420 flow [2024-11-22 13:47:49,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 13:47:49,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-22 13:47:49,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 164 transitions. [2024-11-22 13:47:49,164 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6978723404255319 [2024-11-22 13:47:49,164 INFO L175 Difference]: Start difference. First operand has 51 places, 48 transitions, 156 flow. Second operand 5 states and 164 transitions. [2024-11-22 13:47:49,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 97 transitions, 420 flow [2024-11-22 13:47:49,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 97 transitions, 406 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 13:47:49,171 INFO L231 Difference]: Finished difference. Result has 55 places, 60 transitions, 227 flow [2024-11-22 13:47:49,172 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=227, PETRI_PLACES=55, PETRI_TRANSITIONS=60} [2024-11-22 13:47:49,172 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 4 predicate places. [2024-11-22 13:47:49,173 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 60 transitions, 227 flow [2024-11-22 13:47:49,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 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) [2024-11-22 13:47:49,173 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 13:47:49,174 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] [2024-11-22 13:47:49,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 13:47:49,174 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 1 more)] === [2024-11-22 13:47:49,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:47:49,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1191278576, now seen corresponding path program 2 times [2024-11-22 13:47:49,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:47:49,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565237602] [2024-11-22 13:47:49,175 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 13:47:49,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:47:49,192 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 13:47:49,193 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 13:47:49,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 13:47:49,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:47:49,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565237602] [2024-11-22 13:47:49,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565237602] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:47:49,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:47:49,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 13:47:49,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197693624] [2024-11-22 13:47:49,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:47:49,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 13:47:49,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:47:49,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 13:47:49,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 13:47:49,324 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-22 13:47:49,324 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 60 transitions, 227 flow. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 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) [2024-11-22 13:47:49,324 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 13:47:49,324 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-22 13:47:49,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 13:47:49,648 INFO L124 PetriNetUnfolderBase]: 1967/3653 cut-off events. [2024-11-22 13:47:49,648 INFO L125 PetriNetUnfolderBase]: For 1803/1837 co-relation queries the response was YES. [2024-11-22 13:47:49,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9111 conditions, 3653 events. 1967/3653 cut-off events. For 1803/1837 co-relation queries the response was YES. Maximal size of possible extension queue 248. Compared 25043 event pairs, 601 based on Foata normal form. 44/3624 useless extension candidates. Maximal degree in co-relation 6760. Up to 1183 conditions per place. [2024-11-22 13:47:49,664 INFO L140 encePairwiseOnDemand]: 37/47 looper letters, 56 selfloop transitions, 17 changer transitions 6/98 dead transitions. [2024-11-22 13:47:49,664 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 98 transitions, 495 flow [2024-11-22 13:47:49,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 13:47:49,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-22 13:47:49,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 162 transitions. [2024-11-22 13:47:49,666 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6893617021276596 [2024-11-22 13:47:49,666 INFO L175 Difference]: Start difference. First operand has 55 places, 60 transitions, 227 flow. Second operand 5 states and 162 transitions. [2024-11-22 13:47:49,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 98 transitions, 495 flow [2024-11-22 13:47:49,667 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 98 transitions, 495 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-22 13:47:49,668 INFO L231 Difference]: Finished difference. Result has 61 places, 63 transitions, 291 flow [2024-11-22 13:47:49,668 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=291, PETRI_PLACES=61, PETRI_TRANSITIONS=63} [2024-11-22 13:47:49,669 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 10 predicate places. [2024-11-22 13:47:49,669 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 63 transitions, 291 flow [2024-11-22 13:47:49,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 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) [2024-11-22 13:47:49,669 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 13:47:49,670 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] [2024-11-22 13:47:49,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 13:47:49,670 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 1 more)] === [2024-11-22 13:47:49,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:47:49,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1187769804, now seen corresponding path program 3 times [2024-11-22 13:47:49,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:47:49,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048979449] [2024-11-22 13:47:49,671 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 13:47:49,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:47:49,681 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-22 13:47:49,681 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 13:47:49,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 13:47:49,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:47:49,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048979449] [2024-11-22 13:47:49,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048979449] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:47:49,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:47:49,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 13:47:49,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182563284] [2024-11-22 13:47:49,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:47:49,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 13:47:49,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:47:49,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 13:47:49,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-22 13:47:49,757 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-22 13:47:49,757 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 63 transitions, 291 flow. Second operand has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 13:47:49,757 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 13:47:49,757 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-22 13:47:49,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 13:47:49,990 INFO L124 PetriNetUnfolderBase]: 1390/2606 cut-off events. [2024-11-22 13:47:49,990 INFO L125 PetriNetUnfolderBase]: For 2740/2765 co-relation queries the response was YES. [2024-11-22 13:47:49,995 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7318 conditions, 2606 events. 1390/2606 cut-off events. For 2740/2765 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 16603 event pairs, 371 based on Foata normal form. 58/2604 useless extension candidates. Maximal degree in co-relation 6711. Up to 964 conditions per place. [2024-11-22 13:47:49,999 INFO L140 encePairwiseOnDemand]: 37/47 looper letters, 51 selfloop transitions, 24 changer transitions 26/118 dead transitions. [2024-11-22 13:47:50,000 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 118 transitions, 712 flow [2024-11-22 13:47:50,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 13:47:50,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 13:47:50,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 186 transitions. [2024-11-22 13:47:50,001 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6595744680851063 [2024-11-22 13:47:50,001 INFO L175 Difference]: Start difference. First operand has 61 places, 63 transitions, 291 flow. Second operand 6 states and 186 transitions. [2024-11-22 13:47:50,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 118 transitions, 712 flow [2024-11-22 13:47:50,004 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 118 transitions, 675 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-22 13:47:50,005 INFO L231 Difference]: Finished difference. Result has 65 places, 63 transitions, 346 flow [2024-11-22 13:47:50,005 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=346, PETRI_PLACES=65, PETRI_TRANSITIONS=63} [2024-11-22 13:47:50,006 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 14 predicate places. [2024-11-22 13:47:50,006 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 63 transitions, 346 flow [2024-11-22 13:47:50,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 13:47:50,006 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 13:47:50,006 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] [2024-11-22 13:47:50,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 13:47:50,007 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 1 more)] === [2024-11-22 13:47:50,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:47:50,007 INFO L85 PathProgramCache]: Analyzing trace with hash -543593100, now seen corresponding path program 4 times [2024-11-22 13:47:50,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:47:50,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733708498] [2024-11-22 13:47:50,007 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-22 13:47:50,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:47:50,020 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-22 13:47:50,021 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 13:47:50,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 13:47:50,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:47:50,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733708498] [2024-11-22 13:47:50,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733708498] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:47:50,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:47:50,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 13:47:50,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169094858] [2024-11-22 13:47:50,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:47:50,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 13:47:50,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:47:50,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 13:47:50,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 13:47:50,134 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-22 13:47:50,135 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 63 transitions, 346 flow. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 7 states have internal predecessors, (148), 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) [2024-11-22 13:47:50,135 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 13:47:50,135 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-22 13:47:50,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 13:47:50,313 INFO L124 PetriNetUnfolderBase]: 638/1248 cut-off events. [2024-11-22 13:47:50,314 INFO L125 PetriNetUnfolderBase]: For 1459/1485 co-relation queries the response was YES. [2024-11-22 13:47:50,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3669 conditions, 1248 events. 638/1248 cut-off events. For 1459/1485 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 6919 event pairs, 190 based on Foata normal form. 36/1246 useless extension candidates. Maximal degree in co-relation 1371. Up to 453 conditions per place. [2024-11-22 13:47:50,318 INFO L140 encePairwiseOnDemand]: 37/47 looper letters, 46 selfloop transitions, 20 changer transitions 18/101 dead transitions. [2024-11-22 13:47:50,318 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 101 transitions, 639 flow [2024-11-22 13:47:50,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 13:47:50,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-22 13:47:50,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 218 transitions. [2024-11-22 13:47:50,319 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5797872340425532 [2024-11-22 13:47:50,320 INFO L175 Difference]: Start difference. First operand has 65 places, 63 transitions, 346 flow. Second operand 8 states and 218 transitions. [2024-11-22 13:47:50,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 101 transitions, 639 flow [2024-11-22 13:47:50,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 101 transitions, 617 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-22 13:47:50,322 INFO L231 Difference]: Finished difference. Result has 72 places, 59 transitions, 335 flow [2024-11-22 13:47:50,323 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=317, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=335, PETRI_PLACES=72, PETRI_TRANSITIONS=59} [2024-11-22 13:47:50,323 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 21 predicate places. [2024-11-22 13:47:50,323 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 59 transitions, 335 flow [2024-11-22 13:47:50,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 7 states have internal predecessors, (148), 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) [2024-11-22 13:47:50,324 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 13:47:50,324 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] [2024-11-22 13:47:50,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 13:47:50,324 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 1 more)] === [2024-11-22 13:47:50,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:47:50,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1050100122, now seen corresponding path program 5 times [2024-11-22 13:47:50,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:47:50,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092459747] [2024-11-22 13:47:50,325 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-22 13:47:50,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:47:50,334 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 13:47:50,334 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 13:47:50,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 13:47:50,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:47:50,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092459747] [2024-11-22 13:47:50,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092459747] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:47:50,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:47:50,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 13:47:50,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057853750] [2024-11-22 13:47:50,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:47:50,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 13:47:50,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:47:50,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 13:47:50,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 13:47:50,405 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-22 13:47:50,408 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 59 transitions, 335 flow. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 7 states have internal predecessors, (148), 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) [2024-11-22 13:47:50,408 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 13:47:50,408 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-22 13:47:50,408 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 13:47:50,600 INFO L124 PetriNetUnfolderBase]: 454/899 cut-off events. [2024-11-22 13:47:50,600 INFO L125 PetriNetUnfolderBase]: For 1788/1794 co-relation queries the response was YES. [2024-11-22 13:47:50,603 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2767 conditions, 899 events. 454/899 cut-off events. For 1788/1794 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 4574 event pairs, 131 based on Foata normal form. 20/887 useless extension candidates. Maximal degree in co-relation 1365. Up to 308 conditions per place. [2024-11-22 13:47:50,605 INFO L140 encePairwiseOnDemand]: 37/47 looper letters, 40 selfloop transitions, 14 changer transitions 24/92 dead transitions. [2024-11-22 13:47:50,605 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 92 transitions, 612 flow [2024-11-22 13:47:50,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 13:47:50,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-22 13:47:50,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 213 transitions. [2024-11-22 13:47:50,606 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5664893617021277 [2024-11-22 13:47:50,606 INFO L175 Difference]: Start difference. First operand has 72 places, 59 transitions, 335 flow. Second operand 8 states and 213 transitions. [2024-11-22 13:47:50,607 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 92 transitions, 612 flow [2024-11-22 13:47:50,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 92 transitions, 554 flow, removed 11 selfloop flow, removed 6 redundant places. [2024-11-22 13:47:50,610 INFO L231 Difference]: Finished difference. Result has 71 places, 49 transitions, 256 flow [2024-11-22 13:47:50,610 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=256, PETRI_PLACES=71, PETRI_TRANSITIONS=49} [2024-11-22 13:47:50,610 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 20 predicate places. [2024-11-22 13:47:50,611 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 49 transitions, 256 flow [2024-11-22 13:47:50,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 7 states have internal predecessors, (148), 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) [2024-11-22 13:47:50,611 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 13:47:50,611 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] [2024-11-22 13:47:50,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 13:47:50,611 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 1 more)] === [2024-11-22 13:47:50,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:47:50,612 INFO L85 PathProgramCache]: Analyzing trace with hash -431181202, now seen corresponding path program 2 times [2024-11-22 13:47:50,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:47:50,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365810468] [2024-11-22 13:47:50,612 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 13:47:50,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:47:50,621 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 13:47:50,621 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 13:47:50,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 13:47:50,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:47:50,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365810468] [2024-11-22 13:47:50,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365810468] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:47:50,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:47:50,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 13:47:50,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43631200] [2024-11-22 13:47:50,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:47:50,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 13:47:50,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:47:50,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 13:47:50,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 13:47:50,697 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-22 13:47:50,697 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 49 transitions, 256 flow. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 7 states have internal predecessors, (148), 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) [2024-11-22 13:47:50,698 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 13:47:50,698 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-22 13:47:50,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 13:47:50,810 INFO L124 PetriNetUnfolderBase]: 153/325 cut-off events. [2024-11-22 13:47:50,810 INFO L125 PetriNetUnfolderBase]: For 426/432 co-relation queries the response was YES. [2024-11-22 13:47:50,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 955 conditions, 325 events. 153/325 cut-off events. For 426/432 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1126 event pairs, 52 based on Foata normal form. 20/335 useless extension candidates. Maximal degree in co-relation 603. Up to 125 conditions per place. [2024-11-22 13:47:50,811 INFO L140 encePairwiseOnDemand]: 37/47 looper letters, 0 selfloop transitions, 0 changer transitions 64/64 dead transitions. [2024-11-22 13:47:50,811 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 64 transitions, 398 flow [2024-11-22 13:47:50,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 13:47:50,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-22 13:47:50,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 193 transitions. [2024-11-22 13:47:50,812 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5132978723404256 [2024-11-22 13:47:50,812 INFO L175 Difference]: Start difference. First operand has 71 places, 49 transitions, 256 flow. Second operand 8 states and 193 transitions. [2024-11-22 13:47:50,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 64 transitions, 398 flow [2024-11-22 13:47:50,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 64 transitions, 335 flow, removed 7 selfloop flow, removed 12 redundant places. [2024-11-22 13:47:50,814 INFO L231 Difference]: Finished difference. Result has 60 places, 0 transitions, 0 flow [2024-11-22 13:47:50,814 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=60, PETRI_TRANSITIONS=0} [2024-11-22 13:47:50,815 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 9 predicate places. [2024-11-22 13:47:50,815 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 0 transitions, 0 flow [2024-11-22 13:47:50,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 7 states have internal predecessors, (148), 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) [2024-11-22 13:47:50,817 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2024-11-22 13:47:50,817 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2024-11-22 13:47:50,818 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-11-22 13:47:50,818 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-11-22 13:47:50,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 13:47:50,818 INFO L407 BasicCegarLoop]: Path program histogram: [5, 2, 1] [2024-11-22 13:47:50,820 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-22 13:47:50,821 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-22 13:47:50,824 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:47:50 BasicIcfg [2024-11-22 13:47:50,824 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-22 13:47:50,825 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-22 13:47:50,825 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-22 13:47:50,825 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-22 13:47:50,825 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:47:47" (3/4) ... [2024-11-22 13:47:50,827 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-22 13:47:50,829 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-22 13:47:50,829 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-22 13:47:50,829 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-11-22 13:47:50,832 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 65 nodes and edges [2024-11-22 13:47:50,833 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2024-11-22 13:47:50,833 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-22 13:47:50,833 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-22 13:47:50,896 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-22 13:47:50,897 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-22 13:47:50,897 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-22 13:47:50,897 INFO L158 Benchmark]: Toolchain (without parser) took 4322.58ms. Allocated memory was 159.4MB in the beginning and 390.1MB in the end (delta: 230.7MB). Free memory was 88.9MB in the beginning and 230.0MB in the end (delta: -141.1MB). Peak memory consumption was 91.5MB. Max. memory is 16.1GB. [2024-11-22 13:47:50,898 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 159.4MB. Free memory is still 110.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 13:47:50,898 INFO L158 Benchmark]: CACSL2BoogieTranslator took 225.16ms. Allocated memory is still 159.4MB. Free memory was 88.7MB in the beginning and 75.0MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-22 13:47:50,898 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.53ms. Allocated memory is still 159.4MB. Free memory was 75.0MB in the beginning and 73.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 13:47:50,898 INFO L158 Benchmark]: Boogie Preprocessor took 34.05ms. Allocated memory is still 159.4MB. Free memory was 73.1MB in the beginning and 71.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-22 13:47:50,898 INFO L158 Benchmark]: RCFGBuilder took 470.35ms. Allocated memory is still 159.4MB. Free memory was 71.0MB in the beginning and 104.6MB in the end (delta: -33.6MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. [2024-11-22 13:47:50,899 INFO L158 Benchmark]: TraceAbstraction took 3480.34ms. Allocated memory was 159.4MB in the beginning and 390.1MB in the end (delta: 230.7MB). Free memory was 104.1MB in the beginning and 235.3MB in the end (delta: -131.2MB). Peak memory consumption was 100.6MB. Max. memory is 16.1GB. [2024-11-22 13:47:50,899 INFO L158 Benchmark]: Witness Printer took 72.44ms. Allocated memory is still 390.1MB. Free memory was 235.3MB in the beginning and 230.0MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-22 13:47:50,900 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 159.4MB. Free memory is still 110.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 225.16ms. Allocated memory is still 159.4MB. Free memory was 88.7MB in the beginning and 75.0MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.53ms. Allocated memory is still 159.4MB. Free memory was 75.0MB in the beginning and 73.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 34.05ms. Allocated memory is still 159.4MB. Free memory was 73.1MB in the beginning and 71.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 470.35ms. Allocated memory is still 159.4MB. Free memory was 71.0MB in the beginning and 104.6MB in the end (delta: -33.6MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. * TraceAbstraction took 3480.34ms. Allocated memory was 159.4MB in the beginning and 390.1MB in the end (delta: 230.7MB). Free memory was 104.1MB in the beginning and 235.3MB in the end (delta: -131.2MB). Peak memory consumption was 100.6MB. Max. memory is 16.1GB. * Witness Printer took 72.44ms. Allocated memory is still 390.1MB. Free memory was 235.3MB in the beginning and 230.0MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 94]: 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 7 procedures, 73 locations, 4 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: 3.4s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 249 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 240 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 64 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1131 IncrementalHoareTripleChecker+Invalid, 1195 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 64 mSolverCounterUnsat, 11 mSDtfsCounter, 1131 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=346occurred in iteration=5, InterpolantAutomatonStates: 46, 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, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 319 NumberOfCodeBlocks, 319 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 311 ConstructedInterpolants, 0 QuantifiedInterpolants, 731 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-22 13:47:50,915 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