./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/lazy01.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/lazy01.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b5d87933b05ad3566f9bc28daac5c0aeceb8a45433a1cac3d51a8d34f7f284f0 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 09:16:49,334 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 09:16:49,415 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-20 09:16:49,433 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 09:16:49,433 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 09:16:49,463 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 09:16:49,464 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 09:16:49,465 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 09:16:49,466 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 09:16:49,466 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 09:16:49,468 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 09:16:49,468 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 09:16:49,469 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 09:16:49,469 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 09:16:49,469 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 09:16:49,471 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 09:16:49,471 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 09:16:49,471 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 09:16:49,472 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 09:16:49,472 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 09:16:49,472 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 09:16:49,475 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 09:16:49,475 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 09:16:49,475 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 09:16:49,476 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 09:16:49,476 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 09:16:49,476 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 09:16:49,476 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 09:16:49,477 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 09:16:49,477 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 09:16:49,477 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 09:16:49,477 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 09:16:49,477 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 09:16:49,478 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 09:16:49,478 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 09:16:49,478 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 09:16:49,478 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 09:16:49,478 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 09:16:49,479 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 09:16:49,479 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 09:16:49,480 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 09:16:49,481 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 09:16:49,481 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5d87933b05ad3566f9bc28daac5c0aeceb8a45433a1cac3d51a8d34f7f284f0 [2024-11-20 09:16:49,737 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 09:16:49,766 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 09:16:49,769 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 09:16:49,770 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 09:16:49,771 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 09:16:49,772 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/lazy01.i [2024-11-20 09:16:51,232 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 09:16:51,507 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 09:16:51,509 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/lazy01.i [2024-11-20 09:16:51,528 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b06da6226/e7342c6151f149689741c2c0fdb5fed4/FLAGec01d6ca6 [2024-11-20 09:16:51,807 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b06da6226/e7342c6151f149689741c2c0fdb5fed4 [2024-11-20 09:16:51,810 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 09:16:51,811 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 09:16:51,812 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 09:16:51,812 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 09:16:51,818 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 09:16:51,818 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:16:51" (1/1) ... [2024-11-20 09:16:51,819 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c3df2d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:16:51, skipping insertion in model container [2024-11-20 09:16:51,819 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:16:51" (1/1) ... [2024-11-20 09:16:51,872 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 09:16:52,240 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/lazy01.i[31042,31055] [2024-11-20 09:16:52,252 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 09:16:52,267 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 09:16:52,317 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/lazy01.i[31042,31055] [2024-11-20 09:16:52,323 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 09:16:52,370 INFO L204 MainTranslator]: Completed translation [2024-11-20 09:16:52,371 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:16:52 WrapperNode [2024-11-20 09:16:52,371 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 09:16:52,372 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 09:16:52,373 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 09:16:52,373 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 09:16:52,380 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:16:52" (1/1) ... [2024-11-20 09:16:52,394 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:16:52" (1/1) ... [2024-11-20 09:16:52,412 INFO L138 Inliner]: procedures = 169, calls = 21, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 43 [2024-11-20 09:16:52,414 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 09:16:52,415 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 09:16:52,415 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 09:16:52,415 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 09:16:52,426 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:16:52" (1/1) ... [2024-11-20 09:16:52,426 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:16:52" (1/1) ... [2024-11-20 09:16:52,428 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:16:52" (1/1) ... [2024-11-20 09:16:52,441 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5]. The 0 writes are split as follows [0, 0]. [2024-11-20 09:16:52,442 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:16:52" (1/1) ... [2024-11-20 09:16:52,442 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:16:52" (1/1) ... [2024-11-20 09:16:52,449 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:16:52" (1/1) ... [2024-11-20 09:16:52,452 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:16:52" (1/1) ... [2024-11-20 09:16:52,455 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:16:52" (1/1) ... [2024-11-20 09:16:52,456 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:16:52" (1/1) ... [2024-11-20 09:16:52,459 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 09:16:52,460 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 09:16:52,460 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 09:16:52,460 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 09:16:52,461 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:16:52" (1/1) ... [2024-11-20 09:16:52,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 09:16:52,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 09:16:52,497 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) [2024-11-20 09:16:52,500 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 [2024-11-20 09:16:52,546 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-20 09:16:52,546 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-20 09:16:52,546 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-20 09:16:52,547 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-20 09:16:52,547 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-20 09:16:52,547 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-20 09:16:52,547 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-20 09:16:52,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 09:16:52,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 09:16:52,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-20 09:16:52,549 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-20 09:16:52,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 09:16:52,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 09:16:52,551 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 09:16:52,701 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 09:16:52,703 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 09:16:52,885 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 09:16:52,885 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 09:16:53,056 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 09:16:53,056 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-20 09:16:53,057 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:16:53 BoogieIcfgContainer [2024-11-20 09:16:53,057 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 09:16:53,059 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 09:16:53,059 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 09:16:53,063 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 09:16:53,063 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:16:51" (1/3) ... [2024-11-20 09:16:53,064 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d2ed269 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:16:53, skipping insertion in model container [2024-11-20 09:16:53,064 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:16:52" (2/3) ... [2024-11-20 09:16:53,064 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d2ed269 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:16:53, skipping insertion in model container [2024-11-20 09:16:53,064 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:16:53" (3/3) ... [2024-11-20 09:16:53,068 INFO L112 eAbstractionObserver]: Analyzing ICFG lazy01.i [2024-11-20 09:16:53,085 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 09:16:53,086 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 09:16:53,086 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 09:16:53,141 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-20 09:16:53,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 42 places, 33 transitions, 87 flow [2024-11-20 09:16:53,221 INFO L124 PetriNetUnfolderBase]: 1/30 cut-off events. [2024-11-20 09:16:53,221 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-20 09:16:53,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 30 events. 1/30 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 45 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2024-11-20 09:16:53,226 INFO L82 GeneralOperation]: Start removeDead. Operand has 42 places, 33 transitions, 87 flow [2024-11-20 09:16:53,229 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 34 places, 24 transitions, 63 flow [2024-11-20 09:16:53,242 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 09:16:53,249 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;@2e15db48, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 09:16:53,250 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-20 09:16:53,259 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 09:16:53,259 INFO L124 PetriNetUnfolderBase]: 0/21 cut-off events. [2024-11-20 09:16:53,259 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-20 09:16:53,260 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:16:53,260 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:16:53,261 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread3Err0ASSERT_VIOLATIONERROR_FUNCTION === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-20 09:16:53,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:16:53,267 INFO L85 PathProgramCache]: Analyzing trace with hash -899724581, now seen corresponding path program 1 times [2024-11-20 09:16:53,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:16:53,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299490440] [2024-11-20 09:16:53,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:16:53,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:16:53,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:16:53,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 09:16:53,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:16:53,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299490440] [2024-11-20 09:16:53,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299490440] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:16:53,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:16:53,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 09:16:53,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252258391] [2024-11-20 09:16:53,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:16:53,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 09:16:53,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:16:53,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 09:16:53,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 09:16:53,623 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 33 [2024-11-20 09:16:53,625 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 24 transitions, 63 flow. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2024-11-20 09:16:53,625 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:16:53,625 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 33 [2024-11-20 09:16:53,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:16:53,875 INFO L124 PetriNetUnfolderBase]: 358/632 cut-off events. [2024-11-20 09:16:53,876 INFO L125 PetriNetUnfolderBase]: For 64/64 co-relation queries the response was YES. [2024-11-20 09:16:53,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1296 conditions, 632 events. 358/632 cut-off events. For 64/64 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2910 event pairs, 124 based on Foata normal form. 4/629 useless extension candidates. Maximal degree in co-relation 1183. Up to 524 conditions per place. [2024-11-20 09:16:53,891 INFO L140 encePairwiseOnDemand]: 29/33 looper letters, 26 selfloop transitions, 3 changer transitions 0/34 dead transitions. [2024-11-20 09:16:53,893 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 34 transitions, 147 flow [2024-11-20 09:16:53,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 09:16:53,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 09:16:53,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 57 transitions. [2024-11-20 09:16:53,906 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5757575757575758 [2024-11-20 09:16:53,908 INFO L175 Difference]: Start difference. First operand has 34 places, 24 transitions, 63 flow. Second operand 3 states and 57 transitions. [2024-11-20 09:16:53,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 34 transitions, 147 flow [2024-11-20 09:16:53,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 34 transitions, 135 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-20 09:16:53,915 INFO L231 Difference]: Finished difference. Result has 32 places, 26 transitions, 73 flow [2024-11-20 09:16:53,917 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=73, PETRI_PLACES=32, PETRI_TRANSITIONS=26} [2024-11-20 09:16:53,923 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, -2 predicate places. [2024-11-20 09:16:53,923 INFO L471 AbstractCegarLoop]: Abstraction has has 32 places, 26 transitions, 73 flow [2024-11-20 09:16:53,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2024-11-20 09:16:53,924 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:16:53,924 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:16:53,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 09:16:53,924 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread3Err0ASSERT_VIOLATIONERROR_FUNCTION === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-20 09:16:53,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:16:53,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1825340897, now seen corresponding path program 1 times [2024-11-20 09:16:53,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:16:53,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640791850] [2024-11-20 09:16:53,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:16:53,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:16:53,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:16:54,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 09:16:54,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:16:54,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640791850] [2024-11-20 09:16:54,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640791850] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:16:54,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:16:54,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 09:16:54,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250323357] [2024-11-20 09:16:54,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:16:54,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 09:16:54,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:16:54,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 09:16:54,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 09:16:54,131 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2024-11-20 09:16:54,131 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 26 transitions, 73 flow. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 09:16:54,131 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:16:54,131 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2024-11-20 09:16:54,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:16:54,249 INFO L124 PetriNetUnfolderBase]: 130/322 cut-off events. [2024-11-20 09:16:54,249 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-20 09:16:54,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 685 conditions, 322 events. 130/322 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1395 event pairs, 38 based on Foata normal form. 55/372 useless extension candidates. Maximal degree in co-relation 372. Up to 160 conditions per place. [2024-11-20 09:16:54,254 INFO L140 encePairwiseOnDemand]: 28/33 looper letters, 24 selfloop transitions, 5 changer transitions 0/35 dead transitions. [2024-11-20 09:16:54,255 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 35 transitions, 154 flow [2024-11-20 09:16:54,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 09:16:54,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 09:16:54,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 60 transitions. [2024-11-20 09:16:54,258 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6060606060606061 [2024-11-20 09:16:54,258 INFO L175 Difference]: Start difference. First operand has 32 places, 26 transitions, 73 flow. Second operand 3 states and 60 transitions. [2024-11-20 09:16:54,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 35 transitions, 154 flow [2024-11-20 09:16:54,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 35 transitions, 151 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 09:16:54,262 INFO L231 Difference]: Finished difference. Result has 33 places, 26 transitions, 80 flow [2024-11-20 09:16:54,262 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=80, PETRI_PLACES=33, PETRI_TRANSITIONS=26} [2024-11-20 09:16:54,263 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, -1 predicate places. [2024-11-20 09:16:54,263 INFO L471 AbstractCegarLoop]: Abstraction has has 33 places, 26 transitions, 80 flow [2024-11-20 09:16:54,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 09:16:54,264 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:16:54,264 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:16:54,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 09:16:54,265 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread3Err0ASSERT_VIOLATIONERROR_FUNCTION === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-20 09:16:54,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:16:54,265 INFO L85 PathProgramCache]: Analyzing trace with hash -860003751, now seen corresponding path program 1 times [2024-11-20 09:16:54,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:16:54,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55223157] [2024-11-20 09:16:54,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:16:54,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:16:54,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:16:54,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 09:16:54,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:16:54,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55223157] [2024-11-20 09:16:54,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55223157] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:16:54,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:16:54,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 09:16:54,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221611428] [2024-11-20 09:16:54,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:16:54,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 09:16:54,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:16:54,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 09:16:54,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-20 09:16:54,388 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 33 [2024-11-20 09:16:54,388 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 26 transitions, 80 flow. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 09:16:54,388 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:16:54,389 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 33 [2024-11-20 09:16:54,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:16:54,484 INFO L124 PetriNetUnfolderBase]: 150/327 cut-off events. [2024-11-20 09:16:54,484 INFO L125 PetriNetUnfolderBase]: For 76/76 co-relation queries the response was YES. [2024-11-20 09:16:54,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 786 conditions, 327 events. 150/327 cut-off events. For 76/76 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1308 event pairs, 41 based on Foata normal form. 5/330 useless extension candidates. Maximal degree in co-relation 304. Up to 197 conditions per place. [2024-11-20 09:16:54,487 INFO L140 encePairwiseOnDemand]: 29/33 looper letters, 30 selfloop transitions, 4 changer transitions 2/41 dead transitions. [2024-11-20 09:16:54,488 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 41 transitions, 198 flow [2024-11-20 09:16:54,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 09:16:54,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 09:16:54,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 73 transitions. [2024-11-20 09:16:54,489 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.553030303030303 [2024-11-20 09:16:54,489 INFO L175 Difference]: Start difference. First operand has 33 places, 26 transitions, 80 flow. Second operand 4 states and 73 transitions. [2024-11-20 09:16:54,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 41 transitions, 198 flow [2024-11-20 09:16:54,490 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 41 transitions, 188 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 09:16:54,491 INFO L231 Difference]: Finished difference. Result has 36 places, 26 transitions, 87 flow [2024-11-20 09:16:54,491 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=87, PETRI_PLACES=36, PETRI_TRANSITIONS=26} [2024-11-20 09:16:54,492 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, 2 predicate places. [2024-11-20 09:16:54,494 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 26 transitions, 87 flow [2024-11-20 09:16:54,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 09:16:54,494 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:16:54,494 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:16:54,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 09:16:54,495 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread3Err0ASSERT_VIOLATIONERROR_FUNCTION === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-20 09:16:54,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:16:54,496 INFO L85 PathProgramCache]: Analyzing trace with hash 26852633, now seen corresponding path program 1 times [2024-11-20 09:16:54,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:16:54,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669786147] [2024-11-20 09:16:54,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:16:54,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:16:54,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:16:54,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 09:16:54,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:16:54,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669786147] [2024-11-20 09:16:54,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669786147] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:16:54,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:16:54,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 09:16:54,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475405339] [2024-11-20 09:16:54,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:16:54,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 09:16:54,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:16:54,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 09:16:54,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-20 09:16:54,556 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 33 [2024-11-20 09:16:54,557 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 26 transitions, 87 flow. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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) [2024-11-20 09:16:54,557 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:16:54,557 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 33 [2024-11-20 09:16:54,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:16:54,642 INFO L124 PetriNetUnfolderBase]: 146/315 cut-off events. [2024-11-20 09:16:54,642 INFO L125 PetriNetUnfolderBase]: For 146/146 co-relation queries the response was YES. [2024-11-20 09:16:54,643 INFO L83 FinitePrefix]: Finished finitePrefix Result has 755 conditions, 315 events. 146/315 cut-off events. For 146/146 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1240 event pairs, 35 based on Foata normal form. 4/317 useless extension candidates. Maximal degree in co-relation 306. Up to 142 conditions per place. [2024-11-20 09:16:54,645 INFO L140 encePairwiseOnDemand]: 29/33 looper letters, 31 selfloop transitions, 5 changer transitions 2/43 dead transitions. [2024-11-20 09:16:54,645 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 43 transitions, 209 flow [2024-11-20 09:16:54,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 09:16:54,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 09:16:54,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 71 transitions. [2024-11-20 09:16:54,646 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5378787878787878 [2024-11-20 09:16:54,647 INFO L175 Difference]: Start difference. First operand has 36 places, 26 transitions, 87 flow. Second operand 4 states and 71 transitions. [2024-11-20 09:16:54,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 43 transitions, 209 flow [2024-11-20 09:16:54,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 43 transitions, 201 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-20 09:16:54,650 INFO L231 Difference]: Finished difference. Result has 38 places, 26 transitions, 95 flow [2024-11-20 09:16:54,650 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=95, PETRI_PLACES=38, PETRI_TRANSITIONS=26} [2024-11-20 09:16:54,651 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, 4 predicate places. [2024-11-20 09:16:54,651 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 26 transitions, 95 flow [2024-11-20 09:16:54,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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) [2024-11-20 09:16:54,652 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:16:54,652 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:16:54,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 09:16:54,652 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread3Err0ASSERT_VIOLATIONERROR_FUNCTION === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-20 09:16:54,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:16:54,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1977155689, now seen corresponding path program 1 times [2024-11-20 09:16:54,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:16:54,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980722455] [2024-11-20 09:16:54,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:16:54,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:16:54,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 09:16:54,686 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 09:16:54,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 09:16:54,725 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 09:16:54,725 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 09:16:54,730 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location thread3Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2024-11-20 09:16:54,732 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2024-11-20 09:16:54,733 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-11-20 09:16:54,733 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-11-20 09:16:54,733 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-11-20 09:16:54,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 09:16:54,737 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-20 09:16:54,786 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-20 09:16:54,786 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-20 09:16:54,792 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 09:16:54 BasicIcfg [2024-11-20 09:16:54,792 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-20 09:16:54,793 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-20 09:16:54,793 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-20 09:16:54,793 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-20 09:16:54,794 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:16:53" (3/4) ... [2024-11-20 09:16:54,795 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-20 09:16:54,882 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-20 09:16:54,882 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-20 09:16:54,883 INFO L158 Benchmark]: Toolchain (without parser) took 3072.12ms. Allocated memory was 176.2MB in the beginning and 268.4MB in the end (delta: 92.3MB). Free memory was 115.6MB in the beginning and 234.3MB in the end (delta: -118.7MB). Peak memory consumption was 131.1MB. Max. memory is 16.1GB. [2024-11-20 09:16:54,883 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 176.2MB. Free memory is still 137.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 09:16:54,909 INFO L158 Benchmark]: CACSL2BoogieTranslator took 559.34ms. Allocated memory is still 176.2MB. Free memory was 115.4MB in the beginning and 93.0MB in the end (delta: 22.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-20 09:16:54,910 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.70ms. Allocated memory is still 176.2MB. Free memory was 93.0MB in the beginning and 91.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 09:16:54,910 INFO L158 Benchmark]: Boogie Preprocessor took 44.20ms. Allocated memory is still 176.2MB. Free memory was 91.2MB in the beginning and 89.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 09:16:54,911 INFO L158 Benchmark]: RCFGBuilder took 597.65ms. Allocated memory was 176.2MB in the beginning and 268.4MB in the end (delta: 92.3MB). Free memory was 89.1MB in the beginning and 233.4MB in the end (delta: -144.2MB). Peak memory consumption was 30.4MB. Max. memory is 16.1GB. [2024-11-20 09:16:54,911 INFO L158 Benchmark]: TraceAbstraction took 1733.26ms. Allocated memory is still 268.4MB. Free memory was 232.3MB in the beginning and 82.4MB in the end (delta: 149.9MB). Peak memory consumption was 151.0MB. Max. memory is 16.1GB. [2024-11-20 09:16:54,911 INFO L158 Benchmark]: Witness Printer took 89.22ms. Allocated memory is still 268.4MB. Free memory was 81.3MB in the beginning and 234.3MB in the end (delta: -153.0MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. [2024-11-20 09:16:54,913 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 176.2MB. Free memory is still 137.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 559.34ms. Allocated memory is still 176.2MB. Free memory was 115.4MB in the beginning and 93.0MB in the end (delta: 22.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.70ms. Allocated memory is still 176.2MB. Free memory was 93.0MB in the beginning and 91.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.20ms. Allocated memory is still 176.2MB. Free memory was 91.2MB in the beginning and 89.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 597.65ms. Allocated memory was 176.2MB in the beginning and 268.4MB in the end (delta: 92.3MB). Free memory was 89.1MB in the beginning and 233.4MB in the end (delta: -144.2MB). Peak memory consumption was 30.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1733.26ms. Allocated memory is still 268.4MB. Free memory was 232.3MB in the beginning and 82.4MB in the end (delta: 149.9MB). Peak memory consumption was 151.0MB. Max. memory is 16.1GB. * Witness Printer took 89.22ms. Allocated memory is still 268.4MB. Free memory was 81.3MB in the beginning and 234.3MB in the end (delta: -153.0MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 722]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L702] 0 pthread_mutex_t mutex; [L702] 0 pthread_mutex_t mutex; [L702] 0 pthread_mutex_t mutex; [L702] 0 pthread_mutex_t mutex; [L702] 0 pthread_mutex_t mutex; [L702] 0 pthread_mutex_t mutex; [L703] 0 int data = 0; [L731] 0 pthread_t t1, t2, t3; [L732] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [\old(arg)={0:0}, data=0, mutex={3:0}, t1=-3] [L733] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, data=0, mutex={3:0}, t1=-3, t2=-2] [L734] FCALL, FORK 0 pthread_create(&t3, 0, thread3, 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, data=0, mutex={3:0}, t1=-3, t2=-2, t3=-1] [L707] 1 data++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, data=1, mutex={3:0}] [L714] 2 data+=2 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={3:0}] [L721] COND TRUE 3 data >= 3 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={3:0}] [L722] 3 reach_error() VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={3:0}] - UnprovableResult [Line: 732]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 733]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 734]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 57 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.6s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 47 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 40 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 176 IncrementalHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 3 mSDtfsCounter, 176 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=95occurred in iteration=4, InterpolantAutomatonStates: 14, 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, 0.4s InterpolantComputationTime, 74 NumberOfCodeBlocks, 74 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 157 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 RESULT: Ultimate proved your program to be incorrect! [2024-11-20 09:16:54,941 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE