./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread/stateful01-2.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-06-19_11-23-25.files/protection/stateful01-2.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7724a2de 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/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/pthread/stateful01-2.i ./goblint.2024-06-19_11-23-25.files/protection/stateful01-2.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-7724a2d-m [2024-06-27 17:47:08,621 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-27 17:47:08,707 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-27 17:47:08,715 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-27 17:47:08,716 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-27 17:47:08,746 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-27 17:47:08,747 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-27 17:47:08,747 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-27 17:47:08,748 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-27 17:47:08,752 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-27 17:47:08,752 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-27 17:47:08,753 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-27 17:47:08,754 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-27 17:47:08,755 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-27 17:47:08,755 INFO L153 SettingsManager]: * Use SBE=true [2024-06-27 17:47:08,755 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-27 17:47:08,756 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-27 17:47:08,756 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-27 17:47:08,756 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-27 17:47:08,756 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-27 17:47:08,757 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-27 17:47:08,757 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-27 17:47:08,757 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-27 17:47:08,758 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-27 17:47:08,758 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-27 17:47:08,758 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-27 17:47:08,758 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-27 17:47:08,759 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-27 17:47:08,759 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-27 17:47:08,759 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-27 17:47:08,760 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-27 17:47:08,761 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-27 17:47:08,761 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 17:47:08,761 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-27 17:47:08,761 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-27 17:47:08,761 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-27 17:47:08,762 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-27 17:47:08,762 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-27 17:47:08,762 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-27 17:47:08,762 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-27 17:47:08,762 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-27 17:47:08,763 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-27 17:47:08,763 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-27 17:47:08,763 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-06-27 17:47:09,036 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-27 17:47:09,064 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-27 17:47:09,067 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-27 17:47:09,068 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-27 17:47:09,068 INFO L274 PluginConnector]: CDTParser initialized [2024-06-27 17:47:09,069 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stateful01-2.i [2024-06-27 17:47:10,233 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-27 17:47:10,531 INFO L384 CDTParser]: Found 1 translation units. [2024-06-27 17:47:10,532 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-2.i [2024-06-27 17:47:10,547 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71b76c58d/e76be23435204818851a070dbbb9b399/FLAG9085ee8b8 [2024-06-27 17:47:10,578 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71b76c58d/e76be23435204818851a070dbbb9b399 [2024-06-27 17:47:10,580 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-27 17:47:10,588 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-27 17:47:10,602 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/protection/stateful01-2.yml/witness.yml [2024-06-27 17:47:10,713 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-27 17:47:10,715 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-27 17:47:10,716 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-27 17:47:10,717 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-27 17:47:10,721 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-27 17:47:10,722 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 05:47:10" (1/2) ... [2024-06-27 17:47:10,723 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ce5a862 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 05:47:10, skipping insertion in model container [2024-06-27 17:47:10,723 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 05:47:10" (1/2) ... [2024-06-27 17:47:10,725 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@382b4324 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 05:47:10, skipping insertion in model container [2024-06-27 17:47:10,725 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 05:47:10" (2/2) ... [2024-06-27 17:47:10,727 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ce5a862 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 05:47:10, skipping insertion in model container [2024-06-27 17:47:10,728 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 05:47:10" (2/2) ... [2024-06-27 17:47:10,728 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-27 17:47:10,761 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-27 17:47:10,763 INFO L97 edCorrectnessWitness]: Location invariant before [L723-L723] ! multithreaded || 10 <= data1 [2024-06-27 17:47:10,763 INFO L97 edCorrectnessWitness]: Location invariant before [L722-L722] ! multithreaded || 10 <= data1 [2024-06-27 17:47:10,763 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-27 17:47:10,763 INFO L103 edCorrectnessWitness]: ghost_variable ma_locked = 0 [2024-06-27 17:47:10,763 INFO L106 edCorrectnessWitness]: ghost_update [L699-L699] ma_locked = 1; [2024-06-27 17:47:10,764 INFO L106 edCorrectnessWitness]: ghost_update [L706-L706] ma_locked = 1; [2024-06-27 17:47:10,765 INFO L106 edCorrectnessWitness]: ghost_update [L696-L696] ma_locked = 1; [2024-06-27 17:47:10,765 INFO L106 edCorrectnessWitness]: ghost_update [L709-L709] ma_locked = 1; [2024-06-27 17:47:10,765 INFO L106 edCorrectnessWitness]: ghost_update [L711-L711] ma_locked = 0; [2024-06-27 17:47:10,765 INFO L106 edCorrectnessWitness]: ghost_update [L698-L698] ma_locked = 0; [2024-06-27 17:47:10,765 INFO L106 edCorrectnessWitness]: ghost_update [L708-L708] ma_locked = 0; [2024-06-27 17:47:10,765 INFO L106 edCorrectnessWitness]: ghost_update [L701-L701] ma_locked = 0; [2024-06-27 17:47:10,766 INFO L106 edCorrectnessWitness]: ghost_update [L721-L721] multithreaded = 1; [2024-06-27 17:47:10,809 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-27 17:47:11,139 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-2.i[30826,30839] [2024-06-27 17:47:11,148 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 17:47:11,162 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-27 17:47:11,249 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-2.i[30826,30839] [2024-06-27 17:47:11,250 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 17:47:11,290 INFO L206 MainTranslator]: Completed translation [2024-06-27 17:47:11,291 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 05:47:11 WrapperNode [2024-06-27 17:47:11,291 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-27 17:47:11,292 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-27 17:47:11,292 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-27 17:47:11,293 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-27 17:47:11,300 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 05:47:11" (1/1) ... [2024-06-27 17:47:11,327 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 05:47:11" (1/1) ... [2024-06-27 17:47:11,355 INFO L138 Inliner]: procedures = 168, calls = 28, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 56 [2024-06-27 17:47:11,355 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-27 17:47:11,357 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-27 17:47:11,357 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-27 17:47:11,357 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-27 17:47:11,367 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 05:47:11" (1/1) ... [2024-06-27 17:47:11,367 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 05:47:11" (1/1) ... [2024-06-27 17:47:11,374 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 05:47:11" (1/1) ... [2024-06-27 17:47:11,399 INFO L175 MemorySlicer]: Split 12 memory accesses to 3 slices as follows [2, 5, 5]. 42 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5]. The 0 writes are split as follows [0, 0, 0]. [2024-06-27 17:47:11,400 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 05:47:11" (1/1) ... [2024-06-27 17:47:11,401 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 05:47:11" (1/1) ... [2024-06-27 17:47:11,413 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 05:47:11" (1/1) ... [2024-06-27 17:47:11,414 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 05:47:11" (1/1) ... [2024-06-27 17:47:11,419 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 05:47:11" (1/1) ... [2024-06-27 17:47:11,420 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 05:47:11" (1/1) ... [2024-06-27 17:47:11,422 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-27 17:47:11,427 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-27 17:47:11,428 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-27 17:47:11,428 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-27 17:47:11,429 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 05:47:11" (1/1) ... [2024-06-27 17:47:11,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 17:47:11,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 17:47:11,457 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) [2024-06-27 17:47:11,473 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 [2024-06-27 17:47:11,492 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-06-27 17:47:11,493 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-06-27 17:47:11,493 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-06-27 17:47:11,493 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-06-27 17:47:11,493 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-06-27 17:47:11,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-27 17:47:11,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-27 17:47:11,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-27 17:47:11,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-06-27 17:47:11,494 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-06-27 17:47:11,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-27 17:47:11,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-27 17:47:11,495 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-27 17:47:11,608 INFO L244 CfgBuilder]: Building ICFG [2024-06-27 17:47:11,610 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-27 17:47:11,777 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-27 17:47:11,777 INFO L293 CfgBuilder]: Performing block encoding [2024-06-27 17:47:11,908 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-27 17:47:11,913 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-27 17:47:11,914 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 05:47:11 BoogieIcfgContainer [2024-06-27 17:47:11,914 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-27 17:47:11,917 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-27 17:47:11,917 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-27 17:47:11,920 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-27 17:47:11,920 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.06 05:47:10" (1/4) ... [2024-06-27 17:47:11,922 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a9b659 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 05:47:11, skipping insertion in model container [2024-06-27 17:47:11,922 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 05:47:10" (2/4) ... [2024-06-27 17:47:11,922 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a9b659 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.06 05:47:11, skipping insertion in model container [2024-06-27 17:47:11,923 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 05:47:11" (3/4) ... [2024-06-27 17:47:11,923 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a9b659 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.06 05:47:11, skipping insertion in model container [2024-06-27 17:47:11,923 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 05:47:11" (4/4) ... [2024-06-27 17:47:11,929 INFO L112 eAbstractionObserver]: Analyzing ICFG stateful01-2.i [2024-06-27 17:47:11,947 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-27 17:47:11,948 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-06-27 17:47:11,948 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-27 17:47:12,001 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-06-27 17:47:12,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 43 places, 37 transitions, 88 flow [2024-06-27 17:47:12,083 INFO L124 PetriNetUnfolderBase]: 1/35 cut-off events. [2024-06-27 17:47:12,084 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-06-27 17:47:12,086 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 35 events. 1/35 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 40 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 16. Up to 2 conditions per place. [2024-06-27 17:47:12,088 INFO L82 GeneralOperation]: Start removeDead. Operand has 43 places, 37 transitions, 88 flow [2024-06-27 17:47:12,091 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 39 places, 32 transitions, 76 flow [2024-06-27 17:47:12,113 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-27 17:47:12,123 INFO L357 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, mHoare=false, 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;@475946ae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-27 17:47:12,124 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-06-27 17:47:12,150 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-27 17:47:12,150 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-06-27 17:47:12,151 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 17:47:12,152 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 17:47:12,152 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-27 17:47:12,154 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-06-27 17:47:12,158 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 17:47:12,158 INFO L85 PathProgramCache]: Analyzing trace with hash 234153781, now seen corresponding path program 1 times [2024-06-27 17:47:12,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 17:47:12,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220077861] [2024-06-27 17:47:12,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 17:47:12,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 17:47:12,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 17:47:12,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 17:47:12,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 17:47:12,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220077861] [2024-06-27 17:47:12,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220077861] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 17:47:12,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 17:47:12,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-27 17:47:12,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059597282] [2024-06-27 17:47:12,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 17:47:12,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 17:47:12,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 17:47:12,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 17:47:12,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 17:47:12,497 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 37 [2024-06-27 17:47:12,501 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 32 transitions, 76 flow. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2024-06-27 17:47:12,501 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 17:47:12,501 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 37 [2024-06-27 17:47:12,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 17:47:12,633 INFO L124 PetriNetUnfolderBase]: 189/380 cut-off events. [2024-06-27 17:47:12,634 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2024-06-27 17:47:12,636 INFO L83 FinitePrefix]: Finished finitePrefix Result has 762 conditions, 380 events. 189/380 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1461 event pairs, 189 based on Foata normal form. 64/438 useless extension candidates. Maximal degree in co-relation 708. Up to 351 conditions per place. [2024-06-27 17:47:12,639 INFO L140 encePairwiseOnDemand]: 34/37 looper letters, 21 selfloop transitions, 1 changer transitions 0/30 dead transitions. [2024-06-27 17:47:12,639 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 30 transitions, 116 flow [2024-06-27 17:47:12,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 17:47:12,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 17:47:12,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 57 transitions. [2024-06-27 17:47:12,651 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5135135135135135 [2024-06-27 17:47:12,653 INFO L175 Difference]: Start difference. First operand has 39 places, 32 transitions, 76 flow. Second operand 3 states and 57 transitions. [2024-06-27 17:47:12,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 30 transitions, 116 flow [2024-06-27 17:47:12,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 30 transitions, 108 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-06-27 17:47:12,658 INFO L231 Difference]: Finished difference. Result has 35 places, 30 transitions, 66 flow [2024-06-27 17:47:12,660 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=66, PETRI_PLACES=35, PETRI_TRANSITIONS=30} [2024-06-27 17:47:12,664 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, -4 predicate places. [2024-06-27 17:47:12,664 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 30 transitions, 66 flow [2024-06-27 17:47:12,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2024-06-27 17:47:12,665 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 17:47:12,665 INFO L208 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] [2024-06-27 17:47:12,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-27 17:47:12,666 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-06-27 17:47:12,666 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 17:47:12,666 INFO L85 PathProgramCache]: Analyzing trace with hash 670319086, now seen corresponding path program 1 times [2024-06-27 17:47:12,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 17:47:12,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124961329] [2024-06-27 17:47:12,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 17:47:12,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 17:47:12,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 17:47:12,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 17:47:12,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 17:47:12,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124961329] [2024-06-27 17:47:12,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124961329] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 17:47:12,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 17:47:12,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 17:47:12,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939010065] [2024-06-27 17:47:12,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 17:47:12,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 17:47:12,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 17:47:12,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 17:47:12,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 17:47:12,967 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 37 [2024-06-27 17:47:12,968 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 30 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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) [2024-06-27 17:47:12,968 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 17:47:12,968 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 37 [2024-06-27 17:47:12,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 17:47:13,096 INFO L124 PetriNetUnfolderBase]: 109/259 cut-off events. [2024-06-27 17:47:13,096 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-06-27 17:47:13,099 INFO L83 FinitePrefix]: Finished finitePrefix Result has 511 conditions, 259 events. 109/259 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 936 event pairs, 45 based on Foata normal form. 32/283 useless extension candidates. Maximal degree in co-relation 505. Up to 144 conditions per place. [2024-06-27 17:47:13,103 INFO L140 encePairwiseOnDemand]: 29/37 looper letters, 21 selfloop transitions, 8 changer transitions 0/37 dead transitions. [2024-06-27 17:47:13,103 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 37 transitions, 140 flow [2024-06-27 17:47:13,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 17:47:13,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 17:47:13,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 72 transitions. [2024-06-27 17:47:13,106 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6486486486486487 [2024-06-27 17:47:13,107 INFO L175 Difference]: Start difference. First operand has 35 places, 30 transitions, 66 flow. Second operand 3 states and 72 transitions. [2024-06-27 17:47:13,109 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 37 transitions, 140 flow [2024-06-27 17:47:13,110 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 37 transitions, 139 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-27 17:47:13,112 INFO L231 Difference]: Finished difference. Result has 36 places, 30 transitions, 81 flow [2024-06-27 17:47:13,112 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=65, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=81, PETRI_PLACES=36, PETRI_TRANSITIONS=30} [2024-06-27 17:47:13,118 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, -3 predicate places. [2024-06-27 17:47:13,118 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 30 transitions, 81 flow [2024-06-27 17:47:13,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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) [2024-06-27 17:47:13,119 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 17:47:13,119 INFO L208 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] [2024-06-27 17:47:13,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-27 17:47:13,119 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-06-27 17:47:13,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 17:47:13,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1209193298, now seen corresponding path program 2 times [2024-06-27 17:47:13,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 17:47:13,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851796845] [2024-06-27 17:47:13,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 17:47:13,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 17:47:13,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 17:47:13,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 17:47:13,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 17:47:13,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851796845] [2024-06-27 17:47:13,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851796845] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 17:47:13,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 17:47:13,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 17:47:13,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892436355] [2024-06-27 17:47:13,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 17:47:13,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 17:47:13,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 17:47:13,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 17:47:13,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-06-27 17:47:13,370 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 37 [2024-06-27 17:47:13,371 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 30 transitions, 81 flow. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 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) [2024-06-27 17:47:13,371 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 17:47:13,371 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 37 [2024-06-27 17:47:13,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 17:47:13,509 INFO L124 PetriNetUnfolderBase]: 148/353 cut-off events. [2024-06-27 17:47:13,509 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2024-06-27 17:47:13,510 INFO L83 FinitePrefix]: Finished finitePrefix Result has 799 conditions, 353 events. 148/353 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1412 event pairs, 40 based on Foata normal form. 1/352 useless extension candidates. Maximal degree in co-relation 793. Up to 135 conditions per place. [2024-06-27 17:47:13,511 INFO L140 encePairwiseOnDemand]: 33/37 looper letters, 22 selfloop transitions, 2 changer transitions 26/57 dead transitions. [2024-06-27 17:47:13,511 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 57 transitions, 259 flow [2024-06-27 17:47:13,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 17:47:13,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 17:47:13,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 101 transitions. [2024-06-27 17:47:13,515 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5459459459459459 [2024-06-27 17:47:13,515 INFO L175 Difference]: Start difference. First operand has 36 places, 30 transitions, 81 flow. Second operand 5 states and 101 transitions. [2024-06-27 17:47:13,516 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 57 transitions, 259 flow [2024-06-27 17:47:13,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 57 transitions, 241 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-27 17:47:13,519 INFO L231 Difference]: Finished difference. Result has 41 places, 30 transitions, 83 flow [2024-06-27 17:47:13,519 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=73, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=83, PETRI_PLACES=41, PETRI_TRANSITIONS=30} [2024-06-27 17:47:13,521 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 2 predicate places. [2024-06-27 17:47:13,521 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 30 transitions, 83 flow [2024-06-27 17:47:13,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 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) [2024-06-27 17:47:13,523 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 17:47:13,523 INFO L208 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] [2024-06-27 17:47:13,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-27 17:47:13,523 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-06-27 17:47:13,524 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 17:47:13,524 INFO L85 PathProgramCache]: Analyzing trace with hash -896807382, now seen corresponding path program 3 times [2024-06-27 17:47:13,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 17:47:13,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391648644] [2024-06-27 17:47:13,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 17:47:13,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 17:47:13,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 17:47:13,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 17:47:13,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 17:47:13,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391648644] [2024-06-27 17:47:13,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391648644] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 17:47:13,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 17:47:13,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 17:47:13,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021994229] [2024-06-27 17:47:13,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 17:47:13,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 17:47:13,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 17:47:13,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 17:47:13,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-06-27 17:47:13,684 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 37 [2024-06-27 17:47:13,685 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 30 transitions, 83 flow. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 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) [2024-06-27 17:47:13,685 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 17:47:13,685 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 37 [2024-06-27 17:47:13,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 17:47:13,749 INFO L124 PetriNetUnfolderBase]: 66/166 cut-off events. [2024-06-27 17:47:13,749 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2024-06-27 17:47:13,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 361 conditions, 166 events. 66/166 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 463 event pairs, 13 based on Foata normal form. 1/165 useless extension candidates. Maximal degree in co-relation 355. Up to 104 conditions per place. [2024-06-27 17:47:13,750 INFO L140 encePairwiseOnDemand]: 33/37 looper letters, 0 selfloop transitions, 0 changer transitions 35/35 dead transitions. [2024-06-27 17:47:13,750 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 35 transitions, 152 flow [2024-06-27 17:47:13,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 17:47:13,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 17:47:13,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 80 transitions. [2024-06-27 17:47:13,752 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43243243243243246 [2024-06-27 17:47:13,752 INFO L175 Difference]: Start difference. First operand has 41 places, 30 transitions, 83 flow. Second operand 5 states and 80 transitions. [2024-06-27 17:47:13,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 35 transitions, 152 flow [2024-06-27 17:47:13,753 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 35 transitions, 148 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-27 17:47:13,753 INFO L231 Difference]: Finished difference. Result has 39 places, 0 transitions, 0 flow [2024-06-27 17:47:13,753 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=73, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=39, PETRI_TRANSITIONS=0} [2024-06-27 17:47:13,754 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 0 predicate places. [2024-06-27 17:47:13,754 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 0 transitions, 0 flow [2024-06-27 17:47:13,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 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) [2024-06-27 17:47:13,757 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 5 remaining) [2024-06-27 17:47:13,758 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 5 remaining) [2024-06-27 17:47:13,758 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2024-06-27 17:47:13,758 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-06-27 17:47:13,758 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-06-27 17:47:13,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-27 17:47:13,759 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1] [2024-06-27 17:47:13,762 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-27 17:47:13,762 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-27 17:47:13,766 INFO L507 ceAbstractionStarter]: Automizer considered 2 witness invariants [2024-06-27 17:47:13,767 INFO L508 ceAbstractionStarter]: WitnessConsidered=2 [2024-06-27 17:47:13,768 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.06 05:47:13 BasicIcfg [2024-06-27 17:47:13,768 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-27 17:47:13,768 INFO L158 Benchmark]: Toolchain (without parser) took 3053.42ms. Allocated memory is still 163.6MB. Free memory was 133.0MB in the beginning and 53.1MB in the end (delta: 79.9MB). Peak memory consumption was 82.0MB. Max. memory is 16.1GB. [2024-06-27 17:47:13,769 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 163.6MB. Free memory is still 138.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 17:47:13,769 INFO L158 Benchmark]: Witness Parser took 11.25ms. Allocated memory is still 163.6MB. Free memory is still 136.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 17:47:13,769 INFO L158 Benchmark]: CACSL2BoogieTranslator took 575.08ms. Allocated memory is still 163.6MB. Free memory was 132.3MB in the beginning and 106.5MB in the end (delta: 25.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-06-27 17:47:13,769 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.16ms. Allocated memory is still 163.6MB. Free memory was 105.9MB in the beginning and 104.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-27 17:47:13,770 INFO L158 Benchmark]: Boogie Preprocessor took 69.81ms. Allocated memory is still 163.6MB. Free memory was 104.4MB in the beginning and 102.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-27 17:47:13,770 INFO L158 Benchmark]: RCFGBuilder took 487.25ms. Allocated memory is still 163.6MB. Free memory was 102.3MB in the beginning and 73.6MB in the end (delta: 28.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-06-27 17:47:13,771 INFO L158 Benchmark]: TraceAbstraction took 1851.07ms. Allocated memory is still 163.6MB. Free memory was 73.0MB in the beginning and 53.1MB in the end (delta: 19.9MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. [2024-06-27 17:47:13,772 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 163.6MB. Free memory is still 138.5MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 11.25ms. Allocated memory is still 163.6MB. Free memory is still 136.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 575.08ms. Allocated memory is still 163.6MB. Free memory was 132.3MB in the beginning and 106.5MB in the end (delta: 25.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.16ms. Allocated memory is still 163.6MB. Free memory was 105.9MB in the beginning and 104.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.81ms. Allocated memory is still 163.6MB. Free memory was 104.4MB in the beginning and 102.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 487.25ms. Allocated memory is still 163.6MB. Free memory was 102.3MB in the beginning and 73.6MB in the end (delta: 28.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1851.07ms. Allocated memory is still 163.6MB. Free memory was 73.0MB in the beginning and 53.1MB in the end (delta: 19.9MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 722]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 723]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 727]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 59 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: 1.7s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 84 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 62 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 342 IncrementalHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 11 mSDtfsCounter, 342 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=83occurred in iteration=3, InterpolantAutomatonStates: 16, 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, 0.7s InterpolantComputationTime, 95 NumberOfCodeBlocks, 95 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 241 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 - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-06-27 17:47:13,810 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