./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/bench-exp3x3.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/bench-exp3x3.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ab2e0ac4 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/weaver/bench-exp3x3.wvr.c ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/bench-exp3x3.wvr.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-dev-ab2e0ac-m [2024-01-29 14:17:26,843 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-29 14:17:26,921 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-29 14:17:26,925 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-29 14:17:26,926 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-29 14:17:26,957 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-29 14:17:26,958 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-29 14:17:26,958 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-29 14:17:26,959 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-29 14:17:26,961 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-29 14:17:26,962 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-29 14:17:26,962 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-29 14:17:26,963 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-29 14:17:26,964 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-29 14:17:26,964 INFO L153 SettingsManager]: * Use SBE=true [2024-01-29 14:17:26,964 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-29 14:17:26,964 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-29 14:17:26,965 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-29 14:17:26,965 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-29 14:17:26,965 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-29 14:17:26,965 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-29 14:17:26,965 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-29 14:17:26,966 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-29 14:17:26,966 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-29 14:17:26,966 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-29 14:17:26,966 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-29 14:17:26,966 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-29 14:17:26,967 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-29 14:17:26,967 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-29 14:17:26,967 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-29 14:17:26,968 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-29 14:17:26,968 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-29 14:17:26,968 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 14:17:26,969 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-29 14:17:26,969 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-29 14:17:26,969 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-29 14:17:26,969 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-29 14:17:26,975 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-29 14:17:26,975 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-29 14:17:26,975 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-29 14:17:26,975 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-29 14:17:26,976 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-29 14:17:26,976 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-29 14:17:26,976 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-29 14:17:27,190 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-29 14:17:27,218 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-29 14:17:27,220 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-29 14:17:27,221 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-29 14:17:27,221 INFO L274 PluginConnector]: CDTParser initialized [2024-01-29 14:17:27,222 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/bench-exp3x3.wvr.c [2024-01-29 14:17:28,199 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-29 14:17:28,345 INFO L384 CDTParser]: Found 1 translation units. [2024-01-29 14:17:28,346 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp3x3.wvr.c [2024-01-29 14:17:28,352 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69b8eb8e9/297584e120e44241a8484cb78ad873ca/FLAGdc9d1184c [2024-01-29 14:17:28,364 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69b8eb8e9/297584e120e44241a8484cb78ad873ca [2024-01-29 14:17:28,366 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-29 14:17:28,367 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-29 14:17:28,369 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/bench-exp3x3.wvr.yml/witness.yml [2024-01-29 14:17:28,471 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-29 14:17:28,472 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-29 14:17:28,473 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-29 14:17:28,473 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-29 14:17:28,476 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-29 14:17:28,477 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 02:17:28" (1/2) ... [2024-01-29 14:17:28,478 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ac4b303 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:17:28, skipping insertion in model container [2024-01-29 14:17:28,478 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 02:17:28" (1/2) ... [2024-01-29 14:17:28,480 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@63aa9624 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:17:28, skipping insertion in model container [2024-01-29 14:17:28,480 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:17:28" (2/2) ... [2024-01-29 14:17:28,481 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ac4b303 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:17:28, skipping insertion in model container [2024-01-29 14:17:28,481 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:17:28" (2/2) ... [2024-01-29 14:17:28,481 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-29 14:17:28,505 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-29 14:17:28,506 INFO L98 nessWitnessExtractor]: Location invariant before [L71-L71] (unsigned long )_argptr == 0UL [2024-01-29 14:17:28,506 INFO L98 nessWitnessExtractor]: Location invariant before [L50-L50] (unsigned long )_argptr == 0UL [2024-01-29 14:17:28,507 INFO L98 nessWitnessExtractor]: Location invariant before [L95-L95] n == 0U [2024-01-29 14:17:28,507 INFO L98 nessWitnessExtractor]: Location invariant before [L91-L91] x4 == 0U [2024-01-29 14:17:28,507 INFO L98 nessWitnessExtractor]: Location invariant before [L91-L91] x5 == 0U [2024-01-29 14:17:28,508 INFO L98 nessWitnessExtractor]: Location invariant before [L91-L91] x3 == 0U [2024-01-29 14:17:28,508 INFO L98 nessWitnessExtractor]: Location invariant before [L91-L91] x6 == 0U [2024-01-29 14:17:28,508 INFO L98 nessWitnessExtractor]: Location invariant before [L91-L91] n == 0U [2024-01-29 14:17:28,508 INFO L98 nessWitnessExtractor]: Location invariant before [L55-L55] (unsigned long )_argptr == 0UL [2024-01-29 14:17:28,508 INFO L98 nessWitnessExtractor]: Location invariant before [L63-L63] (unsigned long )_argptr == 0UL [2024-01-29 14:17:28,508 INFO L98 nessWitnessExtractor]: Location invariant before [L79-L79] (unsigned long )_argptr == 0UL [2024-01-29 14:17:28,508 INFO L98 nessWitnessExtractor]: Location invariant before [L47-L47] (unsigned long )_argptr == 0UL [2024-01-29 14:17:28,509 INFO L98 nessWitnessExtractor]: Location invariant after [L37-L43] n == 0U [2024-01-29 14:17:28,509 INFO L98 nessWitnessExtractor]: Location invariant before [L92-L92] x4 == 0U [2024-01-29 14:17:28,509 INFO L98 nessWitnessExtractor]: Location invariant before [L92-L92] n == 0U [2024-01-29 14:17:28,509 INFO L98 nessWitnessExtractor]: Location invariant before [L92-L92] x6 == 0U [2024-01-29 14:17:28,509 INFO L98 nessWitnessExtractor]: Location invariant before [L92-L92] x5 == 0U [2024-01-29 14:17:28,509 INFO L98 nessWitnessExtractor]: Location invariant before [L90-L90] x4 == 0U [2024-01-29 14:17:28,509 INFO L98 nessWitnessExtractor]: Location invariant before [L90-L90] n == 0U [2024-01-29 14:17:28,510 INFO L98 nessWitnessExtractor]: Location invariant before [L90-L90] x5 == 0U [2024-01-29 14:17:28,510 INFO L98 nessWitnessExtractor]: Location invariant before [L90-L90] x2 == 0U [2024-01-29 14:17:28,510 INFO L98 nessWitnessExtractor]: Location invariant before [L90-L90] x6 == 0U [2024-01-29 14:17:28,510 INFO L98 nessWitnessExtractor]: Location invariant before [L90-L90] x3 == 0U [2024-01-29 14:17:28,510 INFO L98 nessWitnessExtractor]: Location invariant before [L82-L82] (unsigned long )_argptr == 0UL [2024-01-29 14:17:28,511 INFO L98 nessWitnessExtractor]: Location invariant before [L39-L39] (unsigned long )_argptr == 0UL [2024-01-29 14:17:28,511 INFO L98 nessWitnessExtractor]: Location invariant before [L94-L94] x6 == 0U [2024-01-29 14:17:28,511 INFO L98 nessWitnessExtractor]: Location invariant before [L94-L94] n == 0U [2024-01-29 14:17:28,511 INFO L98 nessWitnessExtractor]: Location invariant before [L74-L74] (unsigned long )_argptr == 0UL [2024-01-29 14:17:28,511 INFO L98 nessWitnessExtractor]: Loop invariant at [L38-L40] (unsigned long )_argptr == 0UL [2024-01-29 14:17:28,511 INFO L98 nessWitnessExtractor]: Loop invariant at [L70-L72] (unsigned long )_argptr == 0UL [2024-01-29 14:17:28,511 INFO L98 nessWitnessExtractor]: Loop invariant at [L46-L48] (unsigned long )_argptr == 0UL [2024-01-29 14:17:28,512 INFO L98 nessWitnessExtractor]: Location invariant before [L66-L66] (unsigned long )_argptr == 0UL [2024-01-29 14:17:28,512 INFO L98 nessWitnessExtractor]: Loop invariant at [L62-L64] (unsigned long )_argptr == 0UL [2024-01-29 14:17:28,512 INFO L98 nessWitnessExtractor]: Location invariant before [L89-L89] (long long )n + (long long )x1 >= 0LL [2024-01-29 14:17:28,512 INFO L98 nessWitnessExtractor]: Location invariant before [L89-L89] x5 == 0U [2024-01-29 14:17:28,512 INFO L98 nessWitnessExtractor]: Location invariant before [L89-L89] x2 == 0U [2024-01-29 14:17:28,512 INFO L98 nessWitnessExtractor]: Location invariant before [L89-L89] n == 0U [2024-01-29 14:17:28,513 INFO L98 nessWitnessExtractor]: Location invariant before [L89-L89] x1 == 0U [2024-01-29 14:17:28,514 INFO L98 nessWitnessExtractor]: Location invariant before [L89-L89] (0LL - (long long )n) + (long long )x1 >= 0LL [2024-01-29 14:17:28,514 INFO L98 nessWitnessExtractor]: Location invariant before [L89-L89] (long long )n - (long long )x1 >= 0LL [2024-01-29 14:17:28,514 INFO L98 nessWitnessExtractor]: Location invariant before [L89-L89] x6 == 0U [2024-01-29 14:17:28,514 INFO L98 nessWitnessExtractor]: Location invariant before [L89-L89] (0LL - (long long )n) - (long long )x1 >= 0LL [2024-01-29 14:17:28,514 INFO L98 nessWitnessExtractor]: Location invariant before [L89-L89] x3 == 0U [2024-01-29 14:17:28,514 INFO L98 nessWitnessExtractor]: Location invariant before [L89-L89] x4 == 0U [2024-01-29 14:17:28,515 INFO L98 nessWitnessExtractor]: Loop invariant at [L54-L56] (unsigned long )_argptr == 0UL [2024-01-29 14:17:28,515 INFO L98 nessWitnessExtractor]: Loop invariant at [L78-L80] (unsigned long )_argptr == 0UL [2024-01-29 14:17:28,515 INFO L98 nessWitnessExtractor]: Location invariant before [L93-L93] x6 == 0U [2024-01-29 14:17:28,515 INFO L98 nessWitnessExtractor]: Location invariant before [L93-L93] x5 == 0U [2024-01-29 14:17:28,515 INFO L98 nessWitnessExtractor]: Location invariant before [L93-L93] n == 0U [2024-01-29 14:17:28,515 INFO L98 nessWitnessExtractor]: Location invariant before [L58-L58] (unsigned long )_argptr == 0UL [2024-01-29 14:17:28,516 INFO L98 nessWitnessExtractor]: Location invariant before [L42-L42] (unsigned long )_argptr == 0UL [2024-01-29 14:17:28,533 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-29 14:17:28,645 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp3x3.wvr.c[2703,2716] [2024-01-29 14:17:28,649 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 14:17:28,656 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-29 14:17:28,689 WARN L424 MainDispatcher]: Unable to annotate void* thread1(void* _argptr) { while (x1 < n) { x1 = x1 + x1; } return 0; } with a witness entry 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 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 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 Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-29 14:17:28,713 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp3x3.wvr.c[2703,2716] [2024-01-29 14:17:28,714 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 14:17:28,724 INFO L206 MainTranslator]: Completed translation [2024-01-29 14:17:28,725 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:17:28 WrapperNode [2024-01-29 14:17:28,725 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-29 14:17:28,726 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-29 14:17:28,726 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-29 14:17:28,726 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-29 14:17:28,734 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 29.01 02:17:28" (1/1) ... [2024-01-29 14:17:28,741 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 29.01 02:17:28" (1/1) ... [2024-01-29 14:17:28,761 INFO L138 Inliner]: procedures = 22, calls = 44, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 163 [2024-01-29 14:17:28,761 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-29 14:17:28,762 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-29 14:17:28,762 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-29 14:17:28,762 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-29 14:17:28,771 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:17:28" (1/1) ... [2024-01-29 14:17:28,771 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:17:28" (1/1) ... [2024-01-29 14:17:28,774 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:17:28" (1/1) ... [2024-01-29 14:17:28,809 INFO L175 MemorySlicer]: Split 14 memory accesses to 7 slices as follows [2, 2, 2, 2, 2, 2, 2]. 14 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0, 0]. The 6 writes are split as follows [0, 1, 1, 1, 1, 1, 1]. [2024-01-29 14:17:28,810 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:17:28" (1/1) ... [2024-01-29 14:17:28,810 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:17:28" (1/1) ... [2024-01-29 14:17:28,817 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:17:28" (1/1) ... [2024-01-29 14:17:28,833 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:17:28" (1/1) ... [2024-01-29 14:17:28,835 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:17:28" (1/1) ... [2024-01-29 14:17:28,840 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:17:28" (1/1) ... [2024-01-29 14:17:28,844 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-29 14:17:28,845 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-29 14:17:28,845 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-29 14:17:28,845 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-29 14:17:28,854 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:17:28" (1/1) ... [2024-01-29 14:17:28,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 14:17:28,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 14:17:28,877 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) [2024-01-29 14:17:28,896 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 [2024-01-29 14:17:28,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-29 14:17:28,912 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-29 14:17:28,912 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-29 14:17:28,912 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-29 14:17:28,912 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-29 14:17:28,912 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-01-29 14:17:28,912 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-01-29 14:17:28,913 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-01-29 14:17:28,913 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-01-29 14:17:28,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-29 14:17:28,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-29 14:17:28,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-29 14:17:28,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-29 14:17:28,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-29 14:17:28,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-01-29 14:17:28,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-01-29 14:17:28,914 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-01-29 14:17:28,914 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-01-29 14:17:28,915 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2024-01-29 14:17:28,915 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2024-01-29 14:17:28,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-29 14:17:28,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-29 14:17:28,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-29 14:17:28,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-29 14:17:28,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-29 14:17:28,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-29 14:17:28,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-01-29 14:17:28,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-01-29 14:17:28,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-29 14:17:28,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-29 14:17:28,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-29 14:17:28,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-29 14:17:28,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-29 14:17:28,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-29 14:17:28,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-01-29 14:17:28,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-01-29 14:17:28,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-01-29 14:17:28,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-29 14:17:28,919 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-29 14:17:29,047 INFO L244 CfgBuilder]: Building ICFG [2024-01-29 14:17:29,050 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-29 14:17:29,365 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-29 14:17:29,365 INFO L293 CfgBuilder]: Performing block encoding [2024-01-29 14:17:29,539 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-29 14:17:29,540 INFO L320 CfgBuilder]: Removed 6 assume(true) statements. [2024-01-29 14:17:29,540 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 02:17:29 BoogieIcfgContainer [2024-01-29 14:17:29,540 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-29 14:17:29,541 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-29 14:17:29,542 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-29 14:17:29,544 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-29 14:17:29,544 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.01 02:17:28" (1/4) ... [2024-01-29 14:17:29,544 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61b0a304 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 02:17:29, skipping insertion in model container [2024-01-29 14:17:29,545 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:17:28" (2/4) ... [2024-01-29 14:17:29,545 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61b0a304 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 02:17:29, skipping insertion in model container [2024-01-29 14:17:29,545 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:17:28" (3/4) ... [2024-01-29 14:17:29,545 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61b0a304 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 02:17:29, skipping insertion in model container [2024-01-29 14:17:29,545 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 02:17:29" (4/4) ... [2024-01-29 14:17:29,546 INFO L112 eAbstractionObserver]: Analyzing ICFG bench-exp3x3.wvr.c [2024-01-29 14:17:29,560 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-29 14:17:29,560 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 57 error locations. [2024-01-29 14:17:29,560 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-29 14:17:29,666 INFO L144 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2024-01-29 14:17:29,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 176 places, 163 transitions, 368 flow [2024-01-29 14:17:29,743 INFO L124 PetriNetUnfolderBase]: 6/157 cut-off events. [2024-01-29 14:17:29,743 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-01-29 14:17:29,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 182 conditions, 157 events. 6/157 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 313 event pairs, 0 based on Foata normal form. 0/94 useless extension candidates. Maximal degree in co-relation 140. Up to 2 conditions per place. [2024-01-29 14:17:29,749 INFO L82 GeneralOperation]: Start removeDead. Operand has 176 places, 163 transitions, 368 flow [2024-01-29 14:17:29,755 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 169 places, 156 transitions, 348 flow [2024-01-29 14:17:29,766 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 14:17:29,771 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;@20524ae0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 14:17:29,771 INFO L358 AbstractCegarLoop]: Starting to check reachability of 87 error locations. [2024-01-29 14:17:29,773 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 14:17:29,773 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-29 14:17:29,773 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 14:17:29,773 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:17:29,774 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-29 14:17:29,774 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (and 84 more)] === [2024-01-29 14:17:29,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:17:29,779 INFO L85 PathProgramCache]: Analyzing trace with hash 17048, now seen corresponding path program 1 times [2024-01-29 14:17:29,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:17:29,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531147100] [2024-01-29 14:17:29,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:17:29,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:17:29,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:17:30,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:17:30,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:17:30,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531147100] [2024-01-29 14:17:30,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531147100] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:17:30,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:17:30,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:17:30,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275329955] [2024-01-29 14:17:30,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:17:30,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:17:30,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:17:30,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:17:30,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:17:30,126 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 163 [2024-01-29 14:17:30,131 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 156 transitions, 348 flow. Second operand has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 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) [2024-01-29 14:17:30,131 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:17:30,131 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 163 [2024-01-29 14:17:30,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:17:36,843 INFO L124 PetriNetUnfolderBase]: 52702/72132 cut-off events. [2024-01-29 14:17:36,843 INFO L125 PetriNetUnfolderBase]: For 2857/2857 co-relation queries the response was YES. [2024-01-29 14:17:37,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141778 conditions, 72132 events. 52702/72132 cut-off events. For 2857/2857 co-relation queries the response was YES. Maximal size of possible extension queue 4456. Compared 541144 event pairs, 51885 based on Foata normal form. 1/65908 useless extension candidates. Maximal degree in co-relation 115756. Up to 65540 conditions per place. [2024-01-29 14:17:37,862 INFO L140 encePairwiseOnDemand]: 156/163 looper letters, 48 selfloop transitions, 2 changer transitions 0/151 dead transitions. [2024-01-29 14:17:37,862 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 151 transitions, 438 flow [2024-01-29 14:17:37,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:17:37,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:17:37,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 376 transitions. [2024-01-29 14:17:37,878 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7689161554192229 [2024-01-29 14:17:37,879 INFO L175 Difference]: Start difference. First operand has 169 places, 156 transitions, 348 flow. Second operand 3 states and 376 transitions. [2024-01-29 14:17:37,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 151 transitions, 438 flow [2024-01-29 14:17:38,057 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 151 transitions, 414 flow, removed 0 selfloop flow, removed 12 redundant places. [2024-01-29 14:17:38,060 INFO L231 Difference]: Finished difference. Result has 154 places, 151 transitions, 318 flow [2024-01-29 14:17:38,061 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=318, PETRI_PLACES=154, PETRI_TRANSITIONS=151} [2024-01-29 14:17:38,064 INFO L281 CegarLoopForPetriNet]: 169 programPoint places, -15 predicate places. [2024-01-29 14:17:38,064 INFO L495 AbstractCegarLoop]: Abstraction has has 154 places, 151 transitions, 318 flow [2024-01-29 14:17:38,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 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) [2024-01-29 14:17:38,064 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:17:38,064 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-01-29 14:17:38,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-29 14:17:38,065 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (and 84 more)] === [2024-01-29 14:17:38,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:17:38,066 INFO L85 PathProgramCache]: Analyzing trace with hash 529071, now seen corresponding path program 1 times [2024-01-29 14:17:38,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:17:38,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517785524] [2024-01-29 14:17:38,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:17:38,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:17:38,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:17:38,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:17:38,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:17:38,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517785524] [2024-01-29 14:17:38,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517785524] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:17:38,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:17:38,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:17:38,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852102438] [2024-01-29 14:17:38,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:17:38,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:17:38,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:17:38,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:17:38,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:17:38,137 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 163 [2024-01-29 14:17:38,138 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 151 transitions, 318 flow. Second operand has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 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) [2024-01-29 14:17:38,138 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:17:38,138 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 163 [2024-01-29 14:17:38,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:17:43,405 INFO L124 PetriNetUnfolderBase]: 52702/72129 cut-off events. [2024-01-29 14:17:43,405 INFO L125 PetriNetUnfolderBase]: For 449/449 co-relation queries the response was YES. [2024-01-29 14:17:43,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139042 conditions, 72129 events. 52702/72129 cut-off events. For 449/449 co-relation queries the response was YES. Maximal size of possible extension queue 4456. Compared 540313 event pairs, 51885 based on Foata normal form. 3/65910 useless extension candidates. Maximal degree in co-relation 138987. Up to 65541 conditions per place. [2024-01-29 14:17:44,165 INFO L140 encePairwiseOnDemand]: 158/163 looper letters, 48 selfloop transitions, 2 changer transitions 0/148 dead transitions. [2024-01-29 14:17:44,165 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 148 transitions, 412 flow [2024-01-29 14:17:44,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:17:44,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:17:44,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 377 transitions. [2024-01-29 14:17:44,167 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7709611451942741 [2024-01-29 14:17:44,167 INFO L175 Difference]: Start difference. First operand has 154 places, 151 transitions, 318 flow. Second operand 3 states and 377 transitions. [2024-01-29 14:17:44,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 148 transitions, 412 flow [2024-01-29 14:17:44,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 148 transitions, 408 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:17:44,170 INFO L231 Difference]: Finished difference. Result has 151 places, 148 transitions, 312 flow [2024-01-29 14:17:44,170 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=312, PETRI_PLACES=151, PETRI_TRANSITIONS=148} [2024-01-29 14:17:44,171 INFO L281 CegarLoopForPetriNet]: 169 programPoint places, -18 predicate places. [2024-01-29 14:17:44,171 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 148 transitions, 312 flow [2024-01-29 14:17:44,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 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) [2024-01-29 14:17:44,172 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:17:44,172 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-01-29 14:17:44,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-29 14:17:44,172 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (and 84 more)] === [2024-01-29 14:17:44,172 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:17:44,173 INFO L85 PathProgramCache]: Analyzing trace with hash 16401757, now seen corresponding path program 1 times [2024-01-29 14:17:44,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:17:44,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316060369] [2024-01-29 14:17:44,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:17:44,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:17:44,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:17:44,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:17:44,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:17:44,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316060369] [2024-01-29 14:17:44,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316060369] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:17:44,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:17:44,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:17:44,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036984370] [2024-01-29 14:17:44,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:17:44,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:17:44,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:17:44,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:17:44,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:17:44,307 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 163 [2024-01-29 14:17:44,308 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 148 transitions, 312 flow. Second operand has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 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) [2024-01-29 14:17:44,308 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:17:44,308 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 163 [2024-01-29 14:17:44,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand