./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/test-easy10.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-05-21_14-57-05.files/mutex-meet/test-easy10.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cde23df1 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/test-easy10.wvr.c ./goblint.2024-05-21_14-57-05.files/mutex-meet/test-easy10.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 --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-cde23df-m [2024-06-14 14:21:22,315 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-14 14:21:22,383 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-14 14:21:22,388 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-14 14:21:22,388 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-14 14:21:22,411 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-14 14:21:22,412 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-14 14:21:22,413 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-14 14:21:22,413 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-14 14:21:22,417 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-14 14:21:22,417 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-14 14:21:22,417 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-14 14:21:22,418 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-14 14:21:22,419 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-14 14:21:22,419 INFO L153 SettingsManager]: * Use SBE=true [2024-06-14 14:21:22,419 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-14 14:21:22,419 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-14 14:21:22,420 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-14 14:21:22,420 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-14 14:21:22,420 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-14 14:21:22,420 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-14 14:21:22,421 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-14 14:21:22,421 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-14 14:21:22,421 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-14 14:21:22,421 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-14 14:21:22,421 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-14 14:21:22,422 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-14 14:21:22,422 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-14 14:21:22,422 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-14 14:21:22,423 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-14 14:21:22,423 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-14 14:21:22,424 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-14 14:21:22,424 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-14 14:21:22,424 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-14 14:21:22,424 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-14 14:21:22,424 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-14 14:21:22,425 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-14 14:21:22,425 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-14 14:21:22,425 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-14 14:21:22,425 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-14 14:21:22,425 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-14 14:21:22,426 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-14 14:21:22,426 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-14 14:21:22,426 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-14 14:21:22,635 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-14 14:21:22,653 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-14 14:21:22,655 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-14 14:21:22,656 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-14 14:21:22,656 INFO L274 PluginConnector]: CDTParser initialized [2024-06-14 14:21:22,657 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/test-easy10.wvr.c [2024-06-14 14:21:23,696 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-14 14:21:23,882 INFO L384 CDTParser]: Found 1 translation units. [2024-06-14 14:21:23,883 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-easy10.wvr.c [2024-06-14 14:21:23,889 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2d8f32e1/aa6efbb3576449de948692a51126e4c2/FLAGef84d5815 [2024-06-14 14:21:23,900 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2d8f32e1/aa6efbb3576449de948692a51126e4c2 [2024-06-14 14:21:23,902 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-14 14:21:23,903 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-14 14:21:23,903 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/mutex-meet/test-easy10.wvr.yml/witness.yml [2024-06-14 14:21:23,958 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-14 14:21:23,959 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-14 14:21:23,960 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-14 14:21:23,960 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-14 14:21:23,963 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-14 14:21:23,964 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 02:21:23" (1/2) ... [2024-06-14 14:21:23,965 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@587dfce5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:21:23, skipping insertion in model container [2024-06-14 14:21:23,965 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 02:21:23" (1/2) ... [2024-06-14 14:21:23,966 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3ddc56b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:21:23, skipping insertion in model container [2024-06-14 14:21:23,966 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 02:21:23" (2/2) ... [2024-06-14 14:21:23,966 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@587dfce5 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:21:23, skipping insertion in model container [2024-06-14 14:21:23,967 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 02:21:23" (2/2) ... [2024-06-14 14:21:23,967 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-14 14:21:23,980 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-14 14:21:23,981 INFO L97 edCorrectnessWitness]: Location invariant before [L144-L144] ! multithreaded || ((((((((((((((((((((((((1LL - (long long )f11) + (long long )f12 >= 0LL && (1LL - (long long )f11) + (long long )f21 >= 0LL) && (1LL - (long long )f11) + (long long )f22 >= 0LL) && (1LL - (long long )f12) + (long long )f21 >= 0LL) && (1LL - (long long )f12) + (long long )f22 >= 0LL) && (1LL - (long long )f21) + (long long )f22 >= 0LL) && (long long )f11 + (long long )f12 >= 0LL) && (long long )f11 + (long long )f21 >= 0LL) && (long long )f11 + (long long )f22 >= 0LL) && (long long )f12 + (long long )f21 >= 0LL) && (long long )f12 + (long long )f22 >= 0LL) && (long long )f21 + (long long )f22 >= 0LL) && (1LL + (long long )f11) - (long long )f12 >= 0LL) && (1LL + (long long )f11) - (long long )f21 >= 0LL) && (1LL + (long long )f11) - (long long )f22 >= 0LL) && (1LL + (long long )f12) - (long long )f21 >= 0LL) && (1LL + (long long )f12) - (long long )f22 >= 0LL) && (1LL + (long long )f21) - (long long )f22 >= 0LL) && (2LL - (long long )f11) - (long long )f12 >= 0LL) && (2LL - (long long )f11) - (long long )f21 >= 0LL) && (2LL - (long long )f11) - (long long )f22 >= 0LL) && (2LL - (long long )f12) - (long long )f21 >= 0LL) && (2LL - (long long )f12) - (long long )f22 >= 0LL) && (2LL - (long long )f21) - (long long )f22 >= 0LL) [2024-06-14 14:21:23,981 INFO L97 edCorrectnessWitness]: Location invariant before [L147-L147] ! multithreaded || ((((((((((((((((((((((((1LL - (long long )f11) + (long long )f12 >= 0LL && (1LL - (long long )f11) + (long long )f21 >= 0LL) && (1LL - (long long )f11) + (long long )f22 >= 0LL) && (1LL - (long long )f12) + (long long )f21 >= 0LL) && (1LL - (long long )f12) + (long long )f22 >= 0LL) && (1LL - (long long )f21) + (long long )f22 >= 0LL) && (long long )f11 + (long long )f12 >= 0LL) && (long long )f11 + (long long )f21 >= 0LL) && (long long )f11 + (long long )f22 >= 0LL) && (long long )f12 + (long long )f21 >= 0LL) && (long long )f12 + (long long )f22 >= 0LL) && (long long )f21 + (long long )f22 >= 0LL) && (1LL + (long long )f11) - (long long )f12 >= 0LL) && (1LL + (long long )f11) - (long long )f21 >= 0LL) && (1LL + (long long )f11) - (long long )f22 >= 0LL) && (1LL + (long long )f12) - (long long )f21 >= 0LL) && (1LL + (long long )f12) - (long long )f22 >= 0LL) && (1LL + (long long )f21) - (long long )f22 >= 0LL) && (2LL - (long long )f11) - (long long )f12 >= 0LL) && (2LL - (long long )f11) - (long long )f21 >= 0LL) && (2LL - (long long )f11) - (long long )f22 >= 0LL) && (2LL - (long long )f12) - (long long )f21 >= 0LL) && (2LL - (long long )f12) - (long long )f22 >= 0LL) && (2LL - (long long )f21) - (long long )f22 >= 0LL) [2024-06-14 14:21:23,981 INFO L97 edCorrectnessWitness]: Location invariant before [L146-L146] ! multithreaded || ((((((((((((((((((((((((1LL - (long long )f11) + (long long )f12 >= 0LL && (1LL - (long long )f11) + (long long )f21 >= 0LL) && (1LL - (long long )f11) + (long long )f22 >= 0LL) && (1LL - (long long )f12) + (long long )f21 >= 0LL) && (1LL - (long long )f12) + (long long )f22 >= 0LL) && (1LL - (long long )f21) + (long long )f22 >= 0LL) && (long long )f11 + (long long )f12 >= 0LL) && (long long )f11 + (long long )f21 >= 0LL) && (long long )f11 + (long long )f22 >= 0LL) && (long long )f12 + (long long )f21 >= 0LL) && (long long )f12 + (long long )f22 >= 0LL) && (long long )f21 + (long long )f22 >= 0LL) && (1LL + (long long )f11) - (long long )f12 >= 0LL) && (1LL + (long long )f11) - (long long )f21 >= 0LL) && (1LL + (long long )f11) - (long long )f22 >= 0LL) && (1LL + (long long )f12) - (long long )f21 >= 0LL) && (1LL + (long long )f12) - (long long )f22 >= 0LL) && (1LL + (long long )f21) - (long long )f22 >= 0LL) && (2LL - (long long )f11) - (long long )f12 >= 0LL) && (2LL - (long long )f11) - (long long )f21 >= 0LL) && (2LL - (long long )f11) - (long long )f22 >= 0LL) && (2LL - (long long )f12) - (long long )f21 >= 0LL) && (2LL - (long long )f12) - (long long )f22 >= 0LL) && (2LL - (long long )f21) - (long long )f22 >= 0LL) [2024-06-14 14:21:23,981 INFO L97 edCorrectnessWitness]: Location invariant before [L145-L145] ! multithreaded || ((((((((((((((((((((((((1LL - (long long )f11) + (long long )f12 >= 0LL && (1LL - (long long )f11) + (long long )f21 >= 0LL) && (1LL - (long long )f11) + (long long )f22 >= 0LL) && (1LL - (long long )f12) + (long long )f21 >= 0LL) && (1LL - (long long )f12) + (long long )f22 >= 0LL) && (1LL - (long long )f21) + (long long )f22 >= 0LL) && (long long )f11 + (long long )f12 >= 0LL) && (long long )f11 + (long long )f21 >= 0LL) && (long long )f11 + (long long )f22 >= 0LL) && (long long )f12 + (long long )f21 >= 0LL) && (long long )f12 + (long long )f22 >= 0LL) && (long long )f21 + (long long )f22 >= 0LL) && (1LL + (long long )f11) - (long long )f12 >= 0LL) && (1LL + (long long )f11) - (long long )f21 >= 0LL) && (1LL + (long long )f11) - (long long )f22 >= 0LL) && (1LL + (long long )f12) - (long long )f21 >= 0LL) && (1LL + (long long )f12) - (long long )f22 >= 0LL) && (1LL + (long long )f21) - (long long )f22 >= 0LL) && (2LL - (long long )f11) - (long long )f12 >= 0LL) && (2LL - (long long )f11) - (long long )f21 >= 0LL) && (2LL - (long long )f11) - (long long )f22 >= 0LL) && (2LL - (long long )f12) - (long long )f21 >= 0LL) && (2LL - (long long )f12) - (long long )f22 >= 0LL) && (2LL - (long long )f21) - (long long )f22 >= 0LL) [2024-06-14 14:21:23,981 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-14 14:21:23,982 INFO L106 edCorrectnessWitness]: ghost_update [L143-L143] multithreaded = 1; [2024-06-14 14:21:23,996 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-14 14:21:24,127 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-14 14:21:24,135 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-14 14:21:24,246 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-14 14:21:24,279 INFO L206 MainTranslator]: Completed translation [2024-06-14 14:21:24,280 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:21:24 WrapperNode [2024-06-14 14:21:24,280 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-14 14:21:24,281 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-14 14:21:24,281 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-14 14:21:24,281 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-14 14:21:24,286 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 14.06 02:21:24" (1/1) ... [2024-06-14 14:21:24,300 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 14.06 02:21:24" (1/1) ... [2024-06-14 14:21:24,338 INFO L138 Inliner]: procedures = 22, calls = 65, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 180 [2024-06-14 14:21:24,339 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-14 14:21:24,339 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-14 14:21:24,339 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-14 14:21:24,339 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-14 14:21:24,348 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:21:24" (1/1) ... [2024-06-14 14:21:24,349 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:21:24" (1/1) ... [2024-06-14 14:21:24,352 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:21:24" (1/1) ... [2024-06-14 14:21:24,371 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-06-14 14:21:24,371 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:21:24" (1/1) ... [2024-06-14 14:21:24,371 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:21:24" (1/1) ... [2024-06-14 14:21:24,378 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:21:24" (1/1) ... [2024-06-14 14:21:24,380 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:21:24" (1/1) ... [2024-06-14 14:21:24,382 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:21:24" (1/1) ... [2024-06-14 14:21:24,384 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:21:24" (1/1) ... [2024-06-14 14:21:24,388 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-14 14:21:24,388 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-14 14:21:24,389 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-14 14:21:24,389 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-14 14:21:24,389 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:21:24" (1/1) ... [2024-06-14 14:21:24,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-14 14:21:24,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-14 14:21:24,430 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) [2024-06-14 14:21:24,500 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-06-14 14:21:24,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-14 14:21:24,532 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-06-14 14:21:24,532 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-06-14 14:21:24,532 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-06-14 14:21:24,532 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-06-14 14:21:24,532 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-06-14 14:21:24,532 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-06-14 14:21:24,532 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-06-14 14:21:24,533 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-06-14 14:21:24,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-14 14:21:24,533 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-14 14:21:24,533 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-14 14:21:24,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-14 14:21:24,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-14 14:21:24,534 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-14 14:21:24,606 INFO L244 CfgBuilder]: Building ICFG [2024-06-14 14:21:24,608 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-14 14:21:24,903 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-14 14:21:24,904 INFO L293 CfgBuilder]: Performing block encoding [2024-06-14 14:21:25,050 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-14 14:21:25,050 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-14 14:21:25,051 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 02:21:25 BoogieIcfgContainer [2024-06-14 14:21:25,051 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-14 14:21:25,053 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-14 14:21:25,054 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-14 14:21:25,056 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-14 14:21:25,056 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.06 02:21:23" (1/4) ... [2024-06-14 14:21:25,057 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@481d72ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 02:21:25, skipping insertion in model container [2024-06-14 14:21:25,057 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 02:21:23" (2/4) ... [2024-06-14 14:21:25,059 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@481d72ba and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 14.06 02:21:25, skipping insertion in model container [2024-06-14 14:21:25,059 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:21:24" (3/4) ... [2024-06-14 14:21:25,059 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@481d72ba and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 14.06 02:21:25, skipping insertion in model container [2024-06-14 14:21:25,059 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 02:21:25" (4/4) ... [2024-06-14 14:21:25,060 INFO L112 eAbstractionObserver]: Analyzing ICFG test-easy10.wvr.c [2024-06-14 14:21:25,073 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-14 14:21:25,074 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-06-14 14:21:25,074 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-14 14:21:25,131 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-06-14 14:21:25,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 73 places, 60 transitions, 148 flow [2024-06-14 14:21:25,184 INFO L124 PetriNetUnfolderBase]: 0/56 cut-off events. [2024-06-14 14:21:25,200 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-06-14 14:21:25,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 56 events. 0/56 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 107 event pairs, 0 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-06-14 14:21:25,202 INFO L82 GeneralOperation]: Start removeDead. Operand has 73 places, 60 transitions, 148 flow [2024-06-14 14:21:25,204 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 63 places, 50 transitions, 112 flow [2024-06-14 14:21:25,211 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-14 14:21:25,218 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;@6e3dae35, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-14 14:21:25,219 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-06-14 14:21:25,223 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-14 14:21:25,223 INFO L124 PetriNetUnfolderBase]: 0/7 cut-off events. [2024-06-14 14:21:25,223 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-14 14:21:25,223 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:21:25,224 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-06-14 14:21:25,224 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-14 14:21:25,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:21:25,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1854364493, now seen corresponding path program 1 times [2024-06-14 14:21:25,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:21:25,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48959693] [2024-06-14 14:21:25,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:21:25,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:21:25,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:21:25,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:21:25,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:21:25,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48959693] [2024-06-14 14:21:25,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48959693] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:21:25,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:21:25,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-14 14:21:25,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023379660] [2024-06-14 14:21:25,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:21:25,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-14 14:21:25,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:21:25,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-14 14:21:25,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-14 14:21:25,845 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 60 [2024-06-14 14:21:25,848 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 50 transitions, 112 flow. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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) [2024-06-14 14:21:25,848 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:21:25,848 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 60 [2024-06-14 14:21:25,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:21:26,392 INFO L124 PetriNetUnfolderBase]: 2723/4448 cut-off events. [2024-06-14 14:21:26,393 INFO L125 PetriNetUnfolderBase]: For 81/81 co-relation queries the response was YES. [2024-06-14 14:21:26,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8450 conditions, 4448 events. 2723/4448 cut-off events. For 81/81 co-relation queries the response was YES. Maximal size of possible extension queue 262. Compared 29356 event pairs, 1898 based on Foata normal form. 1/4167 useless extension candidates. Maximal degree in co-relation 8434. Up to 3813 conditions per place. [2024-06-14 14:21:26,472 INFO L140 encePairwiseOnDemand]: 51/60 looper letters, 39 selfloop transitions, 5 changer transitions 0/64 dead transitions. [2024-06-14 14:21:26,473 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 64 transitions, 237 flow [2024-06-14 14:21:26,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-14 14:21:26,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-14 14:21:26,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 123 transitions. [2024-06-14 14:21:26,484 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6833333333333333 [2024-06-14 14:21:26,485 INFO L175 Difference]: Start difference. First operand has 63 places, 50 transitions, 112 flow. Second operand 3 states and 123 transitions. [2024-06-14 14:21:26,486 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 64 transitions, 237 flow [2024-06-14 14:21:26,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 64 transitions, 230 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-06-14 14:21:26,493 INFO L231 Difference]: Finished difference. Result has 62 places, 54 transitions, 147 flow [2024-06-14 14:21:26,495 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=147, PETRI_PLACES=62, PETRI_TRANSITIONS=54} [2024-06-14 14:21:26,498 INFO L281 CegarLoopForPetriNet]: 63 programPoint places, -1 predicate places. [2024-06-14 14:21:26,498 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 54 transitions, 147 flow [2024-06-14 14:21:26,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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) [2024-06-14 14:21:26,499 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:21:26,499 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:21:26,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-14 14:21:26,499 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-14 14:21:26,500 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:21:26,500 INFO L85 PathProgramCache]: Analyzing trace with hash -586883125, now seen corresponding path program 1 times [2024-06-14 14:21:26,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:21:26,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400191799] [2024-06-14 14:21:26,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:21:26,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:21:26,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:21:26,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:21:26,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:21:26,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400191799] [2024-06-14 14:21:26,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400191799] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:21:26,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:21:26,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-14 14:21:26,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867597026] [2024-06-14 14:21:26,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:21:26,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-14 14:21:26,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:21:26,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-14 14:21:26,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-14 14:21:26,777 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 60 [2024-06-14 14:21:26,778 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 54 transitions, 147 flow. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 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) [2024-06-14 14:21:26,778 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:21:26,778 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 60 [2024-06-14 14:21:26,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:21:27,227 INFO L124 PetriNetUnfolderBase]: 2647/4340 cut-off events. [2024-06-14 14:21:27,227 INFO L125 PetriNetUnfolderBase]: For 782/782 co-relation queries the response was YES. [2024-06-14 14:21:27,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9507 conditions, 4340 events. 2647/4340 cut-off events. For 782/782 co-relation queries the response was YES. Maximal size of possible extension queue 262. Compared 28552 event pairs, 1644 based on Foata normal form. 15/4142 useless extension candidates. Maximal degree in co-relation 9492. Up to 3682 conditions per place. [2024-06-14 14:21:27,257 INFO L140 encePairwiseOnDemand]: 50/60 looper letters, 45 selfloop transitions, 8 changer transitions 0/73 dead transitions. [2024-06-14 14:21:27,257 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 73 transitions, 305 flow [2024-06-14 14:21:27,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-14 14:21:27,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-14 14:21:27,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 158 transitions. [2024-06-14 14:21:27,259 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6583333333333333 [2024-06-14 14:21:27,259 INFO L175 Difference]: Start difference. First operand has 62 places, 54 transitions, 147 flow. Second operand 4 states and 158 transitions. [2024-06-14 14:21:27,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 73 transitions, 305 flow [2024-06-14 14:21:27,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 73 transitions, 300 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-14 14:21:27,261 INFO L231 Difference]: Finished difference. Result has 64 places, 56 transitions, 184 flow [2024-06-14 14:21:27,261 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=184, PETRI_PLACES=64, PETRI_TRANSITIONS=56} [2024-06-14 14:21:27,262 INFO L281 CegarLoopForPetriNet]: 63 programPoint places, 1 predicate places. [2024-06-14 14:21:27,262 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 56 transitions, 184 flow [2024-06-14 14:21:27,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 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) [2024-06-14 14:21:27,263 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:21:27,263 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:21:27,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-14 14:21:27,263 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-14 14:21:27,264 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:21:27,264 INFO L85 PathProgramCache]: Analyzing trace with hash -751846138, now seen corresponding path program 1 times [2024-06-14 14:21:27,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:21:27,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002130612] [2024-06-14 14:21:27,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:21:27,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:21:27,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:21:27,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:21:27,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:21:27,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002130612] [2024-06-14 14:21:27,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002130612] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:21:27,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:21:27,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-14 14:21:27,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612595916] [2024-06-14 14:21:27,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:21:27,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-14 14:21:27,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:21:27,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-14 14:21:27,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-14 14:21:27,522 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 60 [2024-06-14 14:21:27,522 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 56 transitions, 184 flow. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 5 states have internal predecessors, (130), 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) [2024-06-14 14:21:27,523 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:21:27,523 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 60 [2024-06-14 14:21:27,523 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:21:27,894 INFO L124 PetriNetUnfolderBase]: 2560/4154 cut-off events. [2024-06-14 14:21:27,894 INFO L125 PetriNetUnfolderBase]: For 1992/1992 co-relation queries the response was YES. [2024-06-14 14:21:27,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10289 conditions, 4154 events. 2560/4154 cut-off events. For 1992/1992 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 26459 event pairs, 668 based on Foata normal form. 36/4042 useless extension candidates. Maximal degree in co-relation 10272. Up to 3323 conditions per place. [2024-06-14 14:21:27,919 INFO L140 encePairwiseOnDemand]: 50/60 looper letters, 44 selfloop transitions, 12 changer transitions 0/76 dead transitions. [2024-06-14 14:21:27,920 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 76 transitions, 355 flow [2024-06-14 14:21:27,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-14 14:21:27,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-14 14:21:27,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 176 transitions. [2024-06-14 14:21:27,924 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5866666666666667 [2024-06-14 14:21:27,925 INFO L175 Difference]: Start difference. First operand has 64 places, 56 transitions, 184 flow. Second operand 5 states and 176 transitions. [2024-06-14 14:21:27,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 76 transitions, 355 flow [2024-06-14 14:21:27,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 76 transitions, 336 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-06-14 14:21:27,929 INFO L231 Difference]: Finished difference. Result has 67 places, 59 transitions, 225 flow [2024-06-14 14:21:27,929 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=225, PETRI_PLACES=67, PETRI_TRANSITIONS=59} [2024-06-14 14:21:27,930 INFO L281 CegarLoopForPetriNet]: 63 programPoint places, 4 predicate places. [2024-06-14 14:21:27,930 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 59 transitions, 225 flow [2024-06-14 14:21:27,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 5 states have internal predecessors, (130), 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) [2024-06-14 14:21:27,930 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:21:27,931 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:21:27,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-14 14:21:27,931 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-14 14:21:27,931 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:21:27,932 INFO L85 PathProgramCache]: Analyzing trace with hash -431135681, now seen corresponding path program 1 times [2024-06-14 14:21:27,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:21:27,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591506572] [2024-06-14 14:21:27,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:21:27,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:21:27,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:21:28,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:21:28,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:21:28,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591506572] [2024-06-14 14:21:28,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591506572] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:21:28,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:21:28,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-14 14:21:28,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721600439] [2024-06-14 14:21:28,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:21:28,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-14 14:21:28,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:21:28,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-14 14:21:28,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-06-14 14:21:28,256 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 60 [2024-06-14 14:21:28,256 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 59 transitions, 225 flow. Second operand has 6 states, 6 states have (on average 28.166666666666668) internal successors, (169), 6 states have internal predecessors, (169), 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) [2024-06-14 14:21:28,256 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:21:28,256 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 60 [2024-06-14 14:21:28,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:21:28,558 INFO L124 PetriNetUnfolderBase]: 1838/3162 cut-off events. [2024-06-14 14:21:28,559 INFO L125 PetriNetUnfolderBase]: For 2212/2259 co-relation queries the response was YES. [2024-06-14 14:21:28,567 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7834 conditions, 3162 events. 1838/3162 cut-off events. For 2212/2259 co-relation queries the response was YES. Maximal size of possible extension queue 198. Compared 20324 event pairs, 1206 based on Foata normal form. 69/3054 useless extension candidates. Maximal degree in co-relation 7813. Up to 2393 conditions per place. [2024-06-14 14:21:28,581 INFO L140 encePairwiseOnDemand]: 51/60 looper letters, 42 selfloop transitions, 10 changer transitions 0/79 dead transitions. [2024-06-14 14:21:28,581 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 79 transitions, 392 flow [2024-06-14 14:21:28,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-14 14:21:28,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-14 14:21:28,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 183 transitions. [2024-06-14 14:21:28,582 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.61 [2024-06-14 14:21:28,582 INFO L175 Difference]: Start difference. First operand has 67 places, 59 transitions, 225 flow. Second operand 5 states and 183 transitions. [2024-06-14 14:21:28,583 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 79 transitions, 392 flow [2024-06-14 14:21:28,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 79 transitions, 384 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-14 14:21:28,585 INFO L231 Difference]: Finished difference. Result has 72 places, 62 transitions, 286 flow [2024-06-14 14:21:28,585 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=286, PETRI_PLACES=72, PETRI_TRANSITIONS=62} [2024-06-14 14:21:28,586 INFO L281 CegarLoopForPetriNet]: 63 programPoint places, 9 predicate places. [2024-06-14 14:21:28,586 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 62 transitions, 286 flow [2024-06-14 14:21:28,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.166666666666668) internal successors, (169), 6 states have internal predecessors, (169), 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) [2024-06-14 14:21:28,587 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:21:28,587 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] [2024-06-14 14:21:28,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-14 14:21:28,587 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-14 14:21:28,587 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:21:28,587 INFO L85 PathProgramCache]: Analyzing trace with hash -583313079, now seen corresponding path program 1 times [2024-06-14 14:21:28,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:21:28,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497183870] [2024-06-14 14:21:28,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:21:28,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:21:28,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:21:28,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:21:28,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:21:28,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497183870] [2024-06-14 14:21:28,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497183870] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:21:28,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:21:28,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-14 14:21:28,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416631394] [2024-06-14 14:21:28,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:21:28,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-14 14:21:28,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:21:28,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-14 14:21:28,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-06-14 14:21:28,919 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 60 [2024-06-14 14:21:28,920 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 62 transitions, 286 flow. Second operand has 7 states, 7 states have (on average 26.0) internal successors, (182), 7 states have internal predecessors, (182), 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) [2024-06-14 14:21:28,920 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:21:28,920 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 60 [2024-06-14 14:21:28,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:21:29,511 INFO L124 PetriNetUnfolderBase]: 3536/6191 cut-off events. [2024-06-14 14:21:29,511 INFO L125 PetriNetUnfolderBase]: For 9928/10059 co-relation queries the response was YES. [2024-06-14 14:21:29,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17240 conditions, 6191 events. 3536/6191 cut-off events. For 9928/10059 co-relation queries the response was YES. Maximal size of possible extension queue 386. Compared 45858 event pairs, 602 based on Foata normal form. 194/6212 useless extension candidates. Maximal degree in co-relation 17214. Up to 1965 conditions per place. [2024-06-14 14:21:29,548 INFO L140 encePairwiseOnDemand]: 51/60 looper letters, 99 selfloop transitions, 29 changer transitions 14/162 dead transitions. [2024-06-14 14:21:29,549 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 162 transitions, 988 flow [2024-06-14 14:21:29,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-06-14 14:21:29,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-06-14 14:21:29,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 398 transitions. [2024-06-14 14:21:29,550 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.603030303030303 [2024-06-14 14:21:29,552 INFO L175 Difference]: Start difference. First operand has 72 places, 62 transitions, 286 flow. Second operand 11 states and 398 transitions. [2024-06-14 14:21:29,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 162 transitions, 988 flow [2024-06-14 14:21:29,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 162 transitions, 975 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-06-14 14:21:29,561 INFO L231 Difference]: Finished difference. Result has 85 places, 78 transitions, 495 flow [2024-06-14 14:21:29,561 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=495, PETRI_PLACES=85, PETRI_TRANSITIONS=78} [2024-06-14 14:21:29,567 INFO L281 CegarLoopForPetriNet]: 63 programPoint places, 22 predicate places. [2024-06-14 14:21:29,567 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 78 transitions, 495 flow [2024-06-14 14:21:29,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.0) internal successors, (182), 7 states have internal predecessors, (182), 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) [2024-06-14 14:21:29,567 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:21:29,567 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] [2024-06-14 14:21:29,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-14 14:21:29,568 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-14 14:21:29,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:21:29,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1217734719, now seen corresponding path program 2 times [2024-06-14 14:21:29,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:21:29,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356366944] [2024-06-14 14:21:29,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:21:29,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:21:29,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:21:29,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:21:29,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:21:29,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356366944] [2024-06-14 14:21:29,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356366944] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:21:29,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:21:29,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-14 14:21:29,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539490583] [2024-06-14 14:21:29,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:21:29,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-14 14:21:29,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:21:29,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-14 14:21:29,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-06-14 14:21:29,793 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 60 [2024-06-14 14:21:29,794 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 78 transitions, 495 flow. Second operand has 6 states, 6 states have (on average 26.333333333333332) internal successors, (158), 6 states have internal predecessors, (158), 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) [2024-06-14 14:21:29,794 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:21:29,794 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 60 [2024-06-14 14:21:29,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:21:30,156 INFO L124 PetriNetUnfolderBase]: 1894/3288 cut-off events. [2024-06-14 14:21:30,157 INFO L125 PetriNetUnfolderBase]: For 11538/11797 co-relation queries the response was YES. [2024-06-14 14:21:30,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10952 conditions, 3288 events. 1894/3288 cut-off events. For 11538/11797 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 20814 event pairs, 524 based on Foata normal form. 180/3282 useless extension candidates. Maximal degree in co-relation 10919. Up to 1777 conditions per place. [2024-06-14 14:21:30,182 INFO L140 encePairwiseOnDemand]: 51/60 looper letters, 55 selfloop transitions, 19 changer transitions 0/94 dead transitions. [2024-06-14 14:21:30,183 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 94 transitions, 656 flow [2024-06-14 14:21:30,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-14 14:21:30,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-14 14:21:30,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 207 transitions. [2024-06-14 14:21:30,184 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.575 [2024-06-14 14:21:30,184 INFO L175 Difference]: Start difference. First operand has 85 places, 78 transitions, 495 flow. Second operand 6 states and 207 transitions. [2024-06-14 14:21:30,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 94 transitions, 656 flow [2024-06-14 14:21:30,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 94 transitions, 627 flow, removed 13 selfloop flow, removed 4 redundant places. [2024-06-14 14:21:30,219 INFO L231 Difference]: Finished difference. Result has 84 places, 70 transitions, 433 flow [2024-06-14 14:21:30,219 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=389, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=433, PETRI_PLACES=84, PETRI_TRANSITIONS=70} [2024-06-14 14:21:30,220 INFO L281 CegarLoopForPetriNet]: 63 programPoint places, 21 predicate places. [2024-06-14 14:21:30,220 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 70 transitions, 433 flow [2024-06-14 14:21:30,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.333333333333332) internal successors, (158), 6 states have internal predecessors, (158), 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) [2024-06-14 14:21:30,220 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:21:30,221 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] [2024-06-14 14:21:30,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-14 14:21:30,221 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-14 14:21:30,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:21:30,221 INFO L85 PathProgramCache]: Analyzing trace with hash -114947785, now seen corresponding path program 3 times [2024-06-14 14:21:30,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:21:30,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058384399] [2024-06-14 14:21:30,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:21:30,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:21:30,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:21:30,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:21:30,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:21:30,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058384399] [2024-06-14 14:21:30,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058384399] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:21:30,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:21:30,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-14 14:21:30,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597029536] [2024-06-14 14:21:30,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:21:30,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-14 14:21:30,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:21:30,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-14 14:21:30,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-06-14 14:21:30,550 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 60 [2024-06-14 14:21:30,550 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 70 transitions, 433 flow. Second operand has 6 states, 6 states have (on average 28.166666666666668) internal successors, (169), 6 states have internal predecessors, (169), 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) [2024-06-14 14:21:30,550 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:21:30,550 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 60 [2024-06-14 14:21:30,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:21:30,831 INFO L124 PetriNetUnfolderBase]: 1694/2999 cut-off events. [2024-06-14 14:21:30,832 INFO L125 PetriNetUnfolderBase]: For 8492/8696 co-relation queries the response was YES. [2024-06-14 14:21:30,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9493 conditions, 2999 events. 1694/2999 cut-off events. For 8492/8696 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 19428 event pairs, 490 based on Foata normal form. 51/2832 useless extension candidates. Maximal degree in co-relation 9460. Up to 1597 conditions per place. [2024-06-14 14:21:30,850 INFO L140 encePairwiseOnDemand]: 53/60 looper letters, 35 selfloop transitions, 18 changer transitions 0/82 dead transitions. [2024-06-14 14:21:30,850 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 82 transitions, 565 flow [2024-06-14 14:21:30,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-14 14:21:30,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-14 14:21:30,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 198 transitions. [2024-06-14 14:21:30,851 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.55 [2024-06-14 14:21:30,852 INFO L175 Difference]: Start difference. First operand has 84 places, 70 transitions, 433 flow. Second operand 6 states and 198 transitions. [2024-06-14 14:21:30,852 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 82 transitions, 565 flow [2024-06-14 14:21:30,856 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 82 transitions, 525 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-06-14 14:21:30,858 INFO L231 Difference]: Finished difference. Result has 84 places, 69 transitions, 426 flow [2024-06-14 14:21:30,858 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=379, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=426, PETRI_PLACES=84, PETRI_TRANSITIONS=69} [2024-06-14 14:21:30,859 INFO L281 CegarLoopForPetriNet]: 63 programPoint places, 21 predicate places. [2024-06-14 14:21:30,859 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 69 transitions, 426 flow [2024-06-14 14:21:30,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.166666666666668) internal successors, (169), 6 states have internal predecessors, (169), 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) [2024-06-14 14:21:30,860 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:21:30,860 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] [2024-06-14 14:21:30,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-06-14 14:21:30,860 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-14 14:21:30,860 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:21:30,860 INFO L85 PathProgramCache]: Analyzing trace with hash 2036389508, now seen corresponding path program 1 times [2024-06-14 14:21:30,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:21:30,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058926862] [2024-06-14 14:21:30,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:21:30,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:21:30,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:21:31,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:21:31,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:21:31,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058926862] [2024-06-14 14:21:31,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058926862] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:21:31,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:21:31,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-14 14:21:31,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716331979] [2024-06-14 14:21:31,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:21:31,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-14 14:21:31,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:21:31,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-14 14:21:31,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-06-14 14:21:31,237 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 60 [2024-06-14 14:21:31,238 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 69 transitions, 426 flow. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 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) [2024-06-14 14:21:31,238 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:21:31,238 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 60 [2024-06-14 14:21:31,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:21:31,710 INFO L124 PetriNetUnfolderBase]: 2419/4232 cut-off events. [2024-06-14 14:21:31,712 INFO L125 PetriNetUnfolderBase]: For 13375/13506 co-relation queries the response was YES. [2024-06-14 14:21:31,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13083 conditions, 4232 events. 2419/4232 cut-off events. For 13375/13506 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 28223 event pairs, 647 based on Foata normal form. 110/4191 useless extension candidates. Maximal degree in co-relation 13049. Up to 1936 conditions per place. [2024-06-14 14:21:31,734 INFO L140 encePairwiseOnDemand]: 52/60 looper letters, 79 selfloop transitions, 24 changer transitions 2/125 dead transitions. [2024-06-14 14:21:31,734 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 125 transitions, 877 flow [2024-06-14 14:21:31,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-14 14:21:31,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-14 14:21:31,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 333 transitions. [2024-06-14 14:21:31,737 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.555 [2024-06-14 14:21:31,737 INFO L175 Difference]: Start difference. First operand has 84 places, 69 transitions, 426 flow. Second operand 10 states and 333 transitions. [2024-06-14 14:21:31,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 125 transitions, 877 flow [2024-06-14 14:21:31,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 125 transitions, 837 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-06-14 14:21:31,747 INFO L231 Difference]: Finished difference. Result has 89 places, 74 transitions, 493 flow [2024-06-14 14:21:31,747 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=394, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=493, PETRI_PLACES=89, PETRI_TRANSITIONS=74} [2024-06-14 14:21:31,748 INFO L281 CegarLoopForPetriNet]: 63 programPoint places, 26 predicate places. [2024-06-14 14:21:31,749 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 74 transitions, 493 flow [2024-06-14 14:21:31,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 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) [2024-06-14 14:21:31,749 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:21:31,749 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] [2024-06-14 14:21:31,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-06-14 14:21:31,749 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-14 14:21:31,750 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:21:31,750 INFO L85 PathProgramCache]: Analyzing trace with hash -233371604, now seen corresponding path program 2 times [2024-06-14 14:21:31,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:21:31,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286273454] [2024-06-14 14:21:31,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:21:31,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:21:31,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:21:32,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:21:32,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:21:32,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286273454] [2024-06-14 14:21:32,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286273454] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:21:32,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:21:32,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-14 14:21:32,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406371841] [2024-06-14 14:21:32,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:21:32,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-14 14:21:32,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:21:32,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-14 14:21:32,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-06-14 14:21:32,080 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 60 [2024-06-14 14:21:32,081 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 74 transitions, 493 flow. Second operand has 7 states, 7 states have (on average 27.428571428571427) internal successors, (192), 7 states have internal predecessors, (192), 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) [2024-06-14 14:21:32,081 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:21:32,081 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 60 [2024-06-14 14:21:32,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:21:32,719 INFO L124 PetriNetUnfolderBase]: 3307/6092 cut-off events. [2024-06-14 14:21:32,719 INFO L125 PetriNetUnfolderBase]: For 16807/16810 co-relation queries the response was YES. [2024-06-14 14:21:32,764 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17779 conditions, 6092 events. 3307/6092 cut-off events. For 16807/16810 co-relation queries the response was YES. Maximal size of possible extension queue 369. Compared 46627 event pairs, 2094 based on Foata normal form. 89/5955 useless extension candidates. Maximal degree in co-relation 17745. Up to 3151 conditions per place. [2024-06-14 14:21:32,796 INFO L140 encePairwiseOnDemand]: 52/60 looper letters, 67 selfloop transitions, 18 changer transitions 6/111 dead transitions. [2024-06-14 14:21:32,796 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 111 transitions, 909 flow [2024-06-14 14:21:32,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-14 14:21:32,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-14 14:21:32,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 213 transitions. [2024-06-14 14:21:32,809 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5916666666666667 [2024-06-14 14:21:32,809 INFO L175 Difference]: Start difference. First operand has 89 places, 74 transitions, 493 flow. Second operand 6 states and 213 transitions. [2024-06-14 14:21:32,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 111 transitions, 909 flow [2024-06-14 14:21:32,817 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 111 transitions, 845 flow, removed 7 selfloop flow, removed 6 redundant places. [2024-06-14 14:21:32,819 INFO L231 Difference]: Finished difference. Result has 91 places, 83 transitions, 594 flow [2024-06-14 14:21:32,819 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=437, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=594, PETRI_PLACES=91, PETRI_TRANSITIONS=83} [2024-06-14 14:21:32,819 INFO L281 CegarLoopForPetriNet]: 63 programPoint places, 28 predicate places. [2024-06-14 14:21:32,819 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 83 transitions, 594 flow [2024-06-14 14:21:32,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.428571428571427) internal successors, (192), 7 states have internal predecessors, (192), 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) [2024-06-14 14:21:32,820 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:21:32,820 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] [2024-06-14 14:21:32,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-06-14 14:21:32,820 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-14 14:21:32,821 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:21:32,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1881484932, now seen corresponding path program 3 times [2024-06-14 14:21:32,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:21:32,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590896568] [2024-06-14 14:21:32,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:21:32,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:21:32,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:21:33,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:21:33,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:21:33,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590896568] [2024-06-14 14:21:33,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590896568] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:21:33,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:21:33,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-14 14:21:33,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501140829] [2024-06-14 14:21:33,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:21:33,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-14 14:21:33,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:21:33,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-14 14:21:33,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-14 14:21:33,103 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 60 [2024-06-14 14:21:33,103 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 83 transitions, 594 flow. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 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) [2024-06-14 14:21:33,104 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:21:33,104 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 60 [2024-06-14 14:21:33,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:21:33,627 INFO L124 PetriNetUnfolderBase]: 2109/4152 cut-off events. [2024-06-14 14:21:33,627 INFO L125 PetriNetUnfolderBase]: For 12347/12560 co-relation queries the response was YES. [2024-06-14 14:21:33,656 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11318 conditions, 4152 events. 2109/4152 cut-off events. For 12347/12560 co-relation queries the response was YES. Maximal size of possible extension queue 249. Compared 31614 event pairs, 1178 based on Foata normal form. 143/3931 useless extension candidates. Maximal degree in co-relation 11284. Up to 2339 conditions per place. [2024-06-14 14:21:33,683 INFO L140 encePairwiseOnDemand]: 55/60 looper letters, 0 selfloop transitions, 0 changer transitions 87/87 dead transitions. [2024-06-14 14:21:33,683 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 87 transitions, 672 flow [2024-06-14 14:21:33,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-14 14:21:33,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-14 14:21:33,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 137 transitions. [2024-06-14 14:21:33,684 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5708333333333333 [2024-06-14 14:21:33,684 INFO L175 Difference]: Start difference. First operand has 91 places, 83 transitions, 594 flow. Second operand 4 states and 137 transitions. [2024-06-14 14:21:33,684 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 87 transitions, 672 flow [2024-06-14 14:21:33,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 87 transitions, 582 flow, removed 21 selfloop flow, removed 7 redundant places. [2024-06-14 14:21:33,691 INFO L231 Difference]: Finished difference. Result has 86 places, 0 transitions, 0 flow [2024-06-14 14:21:33,691 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=482, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=86, PETRI_TRANSITIONS=0} [2024-06-14 14:21:33,708 INFO L281 CegarLoopForPetriNet]: 63 programPoint places, 23 predicate places. [2024-06-14 14:21:33,708 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 0 transitions, 0 flow [2024-06-14 14:21:33,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 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) [2024-06-14 14:21:33,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 8 remaining) [2024-06-14 14:21:33,714 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 8 remaining) [2024-06-14 14:21:33,714 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 8 remaining) [2024-06-14 14:21:33,715 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 8 remaining) [2024-06-14 14:21:33,715 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 8 remaining) [2024-06-14 14:21:33,715 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 8 remaining) [2024-06-14 14:21:33,715 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2024-06-14 14:21:33,715 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2024-06-14 14:21:33,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-06-14 14:21:33,715 INFO L445 BasicCegarLoop]: Path program histogram: [3, 3, 1, 1, 1, 1] [2024-06-14 14:21:33,718 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-14 14:21:33,718 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-14 14:21:33,723 INFO L507 ceAbstractionStarter]: Automizer considered 4 witness invariants [2024-06-14 14:21:33,723 INFO L508 ceAbstractionStarter]: WitnessConsidered=4 [2024-06-14 14:21:33,724 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.06 02:21:33 BasicIcfg [2024-06-14 14:21:33,724 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-14 14:21:33,724 INFO L158 Benchmark]: Toolchain (without parser) took 9765.66ms. Allocated memory was 159.4MB in the beginning and 629.1MB in the end (delta: 469.8MB). Free memory was 81.6MB in the beginning and 462.5MB in the end (delta: -381.0MB). Peak memory consumption was 359.4MB. Max. memory is 16.1GB. [2024-06-14 14:21:33,725 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 159.4MB. Free memory was 109.5MB in the beginning and 109.3MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-14 14:21:33,725 INFO L158 Benchmark]: Witness Parser took 0.17ms. Allocated memory is still 159.4MB. Free memory is still 84.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-14 14:21:33,725 INFO L158 Benchmark]: CACSL2BoogieTranslator took 320.32ms. Allocated memory was 159.4MB in the beginning and 232.8MB in the end (delta: 73.4MB). Free memory was 81.3MB in the beginning and 202.7MB in the end (delta: -121.4MB). Peak memory consumption was 27.9MB. Max. memory is 16.1GB. [2024-06-14 14:21:33,725 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.18ms. Allocated memory is still 232.8MB. Free memory was 202.7MB in the beginning and 197.4MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-06-14 14:21:33,726 INFO L158 Benchmark]: Boogie Preprocessor took 48.70ms. Allocated memory is still 232.8MB. Free memory was 197.4MB in the beginning and 194.2MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-06-14 14:21:33,727 INFO L158 Benchmark]: RCFGBuilder took 662.40ms. Allocated memory is still 232.8MB. Free memory was 194.2MB in the beginning and 132.4MB in the end (delta: 61.8MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. [2024-06-14 14:21:33,727 INFO L158 Benchmark]: TraceAbstraction took 8670.66ms. Allocated memory was 232.8MB in the beginning and 629.1MB in the end (delta: 396.4MB). Free memory was 132.4MB in the beginning and 462.5MB in the end (delta: -330.1MB). Peak memory consumption was 335.7MB. Max. memory is 16.1GB. [2024-06-14 14:21:33,728 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 159.4MB. Free memory was 109.5MB in the beginning and 109.3MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.17ms. Allocated memory is still 159.4MB. Free memory is still 84.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 320.32ms. Allocated memory was 159.4MB in the beginning and 232.8MB in the end (delta: 73.4MB). Free memory was 81.3MB in the beginning and 202.7MB in the end (delta: -121.4MB). Peak memory consumption was 27.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.18ms. Allocated memory is still 232.8MB. Free memory was 202.7MB in the beginning and 197.4MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.70ms. Allocated memory is still 232.8MB. Free memory was 197.4MB in the beginning and 194.2MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 662.40ms. Allocated memory is still 232.8MB. Free memory was 194.2MB in the beginning and 132.4MB in the end (delta: 61.8MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. * TraceAbstraction took 8670.66ms. Allocated memory was 232.8MB in the beginning and 629.1MB in the end (delta: 396.4MB). Free memory was 132.4MB in the beginning and 462.5MB in the end (delta: -330.1MB). Peak memory consumption was 335.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 144]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 145]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 146]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 147]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 101 locations, 8 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: 8.6s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 5.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 607 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 548 mSDsluCounter, 148 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 58 mSDsCounter, 116 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1221 IncrementalHoareTripleChecker+Invalid, 1337 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 116 mSolverCounterUnsat, 90 mSDtfsCounter, 1221 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=594occurred in iteration=9, InterpolantAutomatonStates: 60, 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, 0.2s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 174 NumberOfCodeBlocks, 174 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 164 ConstructedInterpolants, 0 QuantifiedInterpolants, 2890 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-06-14 14:21:33,770 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE