./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-ext/09_fmaxsym.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/09_fmaxsym.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8857f20b Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/pthread-ext/09_fmaxsym.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/09_fmaxsym.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-dev-8857f20-m [2024-01-29 22:50:21,658 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-29 22:50:21,722 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-29 22:50:21,726 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-29 22:50:21,726 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-29 22:50:21,751 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-29 22:50:21,753 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-29 22:50:21,753 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-29 22:50:21,754 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-29 22:50:21,757 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-29 22:50:21,757 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-29 22:50:21,757 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-29 22:50:21,758 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-29 22:50:21,760 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-29 22:50:21,760 INFO L153 SettingsManager]: * Use SBE=true [2024-01-29 22:50:21,760 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-29 22:50:21,760 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-29 22:50:21,760 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-29 22:50:21,761 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-29 22:50:21,761 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-29 22:50:21,761 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-29 22:50:21,761 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-29 22:50:21,762 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-29 22:50:21,762 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-29 22:50:21,762 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-29 22:50:21,762 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-29 22:50:21,763 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-29 22:50:21,763 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-29 22:50:21,763 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-29 22:50:21,763 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-29 22:50:21,764 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-29 22:50:21,764 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-29 22:50:21,765 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 22:50:21,765 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-29 22:50:21,765 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-29 22:50:21,765 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-29 22:50:21,765 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-29 22:50:21,766 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-29 22:50:21,766 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-29 22:50:21,766 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-29 22:50:21,766 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-29 22:50:21,766 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-29 22:50:21,767 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-29 22:50:21,767 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-29 22:50:21,974 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-29 22:50:21,998 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-29 22:50:22,000 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-29 22:50:22,001 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-29 22:50:22,001 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-29 22:50:22,002 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/09_fmaxsym.yml/witness.yml [2024-01-29 22:50:22,147 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-29 22:50:22,148 INFO L274 PluginConnector]: CDTParser initialized [2024-01-29 22:50:22,148 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/09_fmaxsym.i [2024-01-29 22:50:23,251 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-29 22:50:23,434 INFO L384 CDTParser]: Found 1 translation units. [2024-01-29 22:50:23,435 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/09_fmaxsym.i [2024-01-29 22:50:23,448 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c640ab7d2/3c00228a47304759ab592cd2e4a715b3/FLAGf0030e98a [2024-01-29 22:50:23,460 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c640ab7d2/3c00228a47304759ab592cd2e4a715b3 [2024-01-29 22:50:23,461 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-29 22:50:23,462 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-29 22:50:23,464 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-29 22:50:23,465 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-29 22:50:23,468 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-29 22:50:23,469 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:50:22" (1/2) ... [2024-01-29 22:50:23,469 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@370cb077 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:50:23, skipping insertion in model container [2024-01-29 22:50:23,470 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:50:22" (1/2) ... [2024-01-29 22:50:23,471 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2f125bd1 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:50:23, skipping insertion in model container [2024-01-29 22:50:23,471 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 10:50:23" (2/2) ... [2024-01-29 22:50:23,471 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@370cb077 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:50:23, skipping insertion in model container [2024-01-29 22:50:23,472 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 10:50:23" (2/2) ... [2024-01-29 22:50:23,472 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-29 22:50:23,521 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-29 22:50:23,522 INFO L98 nessWitnessExtractor]: Location invariant before [L713-L713] (((offset <= 2147483645) && (i <= 2147483646)) && (e == 0)) && (((-2147483647 <= i && (1LL - (long long )i) + (long long )offset >= 0LL) && (-1LL + (long long )i) - (long long )offset >= 0LL) || (((0LL - (long long )i) + (long long )offset >= 0LL && (long long )i - (long long )offset >= 0LL) && offset == i)) [2024-01-29 22:50:23,522 INFO L98 nessWitnessExtractor]: Location invariant before [L713-L713] ((offset <= 2147483645) && (i <= 2147483646)) && (e == 0) [2024-01-29 22:50:23,522 INFO L98 nessWitnessExtractor]: Location invariant before [L713-L713] (offset <= 2147483645) && (i <= 2147483646) [2024-01-29 22:50:23,523 INFO L98 nessWitnessExtractor]: Location invariant before [L713-L713] offset <= 2147483645 [2024-01-29 22:50:23,523 INFO L98 nessWitnessExtractor]: Loop invariant at [L705-L717] (((offset <= 2147483645 && e == 0) && (((((-2147483646 <= i && (2LL - (long long )i) + (long long )offset >= 0LL) && (-2LL + (long long )i) - (long long )offset >= 0LL) || (((-2147483647 <= i && i <= 2147483646) && (1LL - (long long )i) + (long long )offset >= 0LL) && (-1LL + (long long )i) - (long long )offset >= 0LL)) || ((-2147483647 <= i && (1LL - (long long )i) + (long long )offset >= 0LL) && (-1LL + (long long )i) - (long long )offset >= 0LL)) || (((i <= 2147483646 && (0LL - (long long )i) + (long long )offset >= 0LL) && (long long )i - (long long )offset >= 0LL) && offset == i))) || (((0LL - (long long )i) + (long long )offset >= 0LL && (long long )i - (long long )offset >= 0LL) && offset == i)) || ((((4294967296LL + (long long )e) + (long long )i >= 0LL && (4294967295LL - (long long )e) + (long long )i >= 0LL) && (4294967295LL + (long long )e) - (long long )i >= 0LL) && (4294967294LL - (long long )e) - (long long )i >= 0LL) [2024-01-29 22:50:23,523 INFO L98 nessWitnessExtractor]: Location invariant before [L709-L711] (offset <= 2147483645) && (i <= 2147483646) [2024-01-29 22:50:23,523 INFO L98 nessWitnessExtractor]: Location invariant before [L709-L711] ((offset <= 2147483645) && (i <= 2147483646)) && (((-2147483647 <= i && (1LL - (long long )i) + (long long )offset >= 0LL) && (-1LL + (long long )i) - (long long )offset >= 0LL) || (((0LL - (long long )i) + (long long )offset >= 0LL && (long long )i - (long long )offset >= 0LL) && offset == i)) [2024-01-29 22:50:23,523 INFO L98 nessWitnessExtractor]: Location invariant before [L709-L711] offset <= 2147483645 [2024-01-29 22:50:23,523 INFO L98 nessWitnessExtractor]: Location invariant before [L709-L711] ((offset <= 2147483645) && (i <= 2147483646)) && (e == 0) [2024-01-29 22:50:23,523 INFO L98 nessWitnessExtractor]: Location invariant before [L716-L716] ((offset <= 2147483645) && (i <= 2147483646)) && (e == 0) [2024-01-29 22:50:23,524 INFO L98 nessWitnessExtractor]: Location invariant before [L716-L716] (offset <= 2147483645) && (i <= 2147483646) [2024-01-29 22:50:23,524 INFO L98 nessWitnessExtractor]: Location invariant before [L716-L716] (((offset <= 2147483645) && (i <= 2147483646)) && (e == 0)) && (((-2147483647 <= i && (1LL - (long long )i) + (long long )offset >= 0LL) && (-1LL + (long long )i) - (long long )offset >= 0LL) || (((0LL - (long long )i) + (long long )offset >= 0LL && (long long )i - (long long )offset >= 0LL) && offset == i)) [2024-01-29 22:50:23,524 INFO L98 nessWitnessExtractor]: Location invariant before [L716-L716] offset <= 2147483645 [2024-01-29 22:50:23,524 INFO L98 nessWitnessExtractor]: Location invariant after [L701-L718] ((-2147483646 <= i) && ((2LL - (long long )i) + (long long )offset >= 0LL)) && ((-2LL + (long long )i) - (long long )offset >= 0LL) [2024-01-29 22:50:23,524 INFO L98 nessWitnessExtractor]: Location invariant after [L701-L718] (-2147483646 <= i) && ((2LL - (long long )i) + (long long )offset >= 0LL) [2024-01-29 22:50:23,524 INFO L98 nessWitnessExtractor]: Location invariant after [L701-L718] (((-2147483646 <= i) && ((2LL - (long long )i) + (long long )offset >= 0LL)) && ((-2LL + (long long )i) - (long long )offset >= 0LL)) && (e == 0) [2024-01-29 22:50:23,524 INFO L98 nessWitnessExtractor]: Location invariant after [L701-L718] -2147483646 <= i [2024-01-29 22:50:23,525 INFO L98 nessWitnessExtractor]: Location invariant after [L701-L718] (-2147483646 <= i) && (offset <= 2147483645) [2024-01-29 22:50:23,525 INFO L98 nessWitnessExtractor]: Location invariant before [L723-L723] (unsigned long )arg == 0UL [2024-01-29 22:50:23,525 INFO L98 nessWitnessExtractor]: Location invariant before [L706-L706] (offset <= 2147483645) && ((((-2147483647 <= i && (1LL - (long long )i) + (long long )offset >= 0LL) && (-1LL + (long long )i) - (long long )offset >= 0LL) && e == 0) || (((0LL - (long long )i) + (long long )offset >= 0LL && (long long )i - (long long )offset >= 0LL) && offset == i)) [2024-01-29 22:50:23,525 INFO L98 nessWitnessExtractor]: Location invariant before [L706-L706] offset <= 2147483645 [2024-01-29 22:50:23,525 INFO L98 nessWitnessExtractor]: Location invariant before [L706-L706] (offset <= 2147483645) && (i <= 2147483646) [2024-01-29 22:50:23,525 INFO L98 nessWitnessExtractor]: Location invariant after [L695-L699] (int )m == 0 [2024-01-29 22:50:23,526 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] ((offset <= 2147483645) && (i <= 2147483646)) && (offset <= 2147483645) [2024-01-29 22:50:23,526 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] (offset <= 2147483645) && (i <= 2147483646) [2024-01-29 22:50:23,526 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] (((offset <= 2147483645) && (i <= 2147483646)) && (offset <= 2147483645)) && (e == 0) [2024-01-29 22:50:23,526 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] offset <= 2147483645 [2024-01-29 22:50:23,526 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] ((offset <= 2147483645) && (i <= 2147483646)) && (((-2147483647 <= i && (1LL - (long long )i) + (long long )offset >= 0LL) && (-1LL + (long long )i) - (long long )offset >= 0LL) || (((0LL - (long long )i) + (long long )offset >= 0LL && (long long )i - (long long )offset >= 0LL) && offset == i)) [2024-01-29 22:50:23,526 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] (((offset <= 2147483645) && (i <= 2147483646)) && (offset <= 2147483645)) && (((-2147483647 <= i && (1LL - (long long )i) + (long long )offset >= 0LL) && (-1LL + (long long )i) - (long long )offset >= 0LL) || (((0LL - (long long )i) + (long long )offset >= 0LL && (long long )i - (long long )offset >= 0LL) && offset == i)) [2024-01-29 22:50:23,526 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] (((offset <= 2147483645) && (i <= 2147483646)) && (offset <= 2147483645)) && (i <= 2147483646) [2024-01-29 22:50:23,527 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] ((offset <= 2147483645) && (i <= 2147483646)) && (e == 0) [2024-01-29 22:50:23,527 INFO L98 nessWitnessExtractor]: Location invariant before [L720-L720] (unsigned long )arg == 0UL [2024-01-29 22:50:23,527 INFO L98 nessWitnessExtractor]: Location invariant before [L722-L722] (unsigned long )arg == 0UL [2024-01-29 22:50:23,527 INFO L98 nessWitnessExtractor]: Location invariant before [L714-L714] (offset <= 2147483645) && (i <= 2147483646) [2024-01-29 22:50:23,527 INFO L98 nessWitnessExtractor]: Location invariant before [L714-L714] ((offset <= 2147483645) && (i <= 2147483646)) && (e == 0) [2024-01-29 22:50:23,527 INFO L98 nessWitnessExtractor]: Location invariant before [L714-L714] offset <= 2147483645 [2024-01-29 22:50:23,528 INFO L98 nessWitnessExtractor]: Location invariant before [L714-L714] ((offset <= 2147483645) && (i <= 2147483646)) && (((-2147483647 <= i && (1LL - (long long )i) + (long long )offset >= 0LL) && (-1LL + (long long )i) - (long long )offset >= 0LL) || (((0LL - (long long )i) + (long long )offset >= 0LL && (long long )i - (long long )offset >= 0LL) && offset == i)) [2024-01-29 22:50:23,528 INFO L98 nessWitnessExtractor]: Location invariant after [L690-L694] (int )m == 1 [2024-01-29 22:50:23,529 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] ((offset <= 2147483645) && (i <= 2147483646)) && (e == 0) [2024-01-29 22:50:23,529 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] (offset <= 2147483645) && (i <= 2147483646) [2024-01-29 22:50:23,529 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] ((offset <= 2147483645) && (i <= 2147483646)) && (((-2147483647 <= i && (1LL - (long long )i) + (long long )offset >= 0LL) && (-1LL + (long long )i) - (long long )offset >= 0LL) || (((0LL - (long long )i) + (long long )offset >= 0LL && (long long )i - (long long )offset >= 0LL) && offset == i)) [2024-01-29 22:50:23,529 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] ((offset <= 2147483645) && (i <= 2147483646)) && (offset <= 2147483645) [2024-01-29 22:50:23,529 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] ((offset <= 2147483645) && (i <= 2147483646)) && (i <= 2147483646) [2024-01-29 22:50:23,530 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] offset <= 2147483645 [2024-01-29 22:50:23,530 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] (((offset <= 2147483645) && (i <= 2147483646)) && (e == 0)) && (((-2147483647 <= i && (1LL - (long long )i) + (long long )offset >= 0LL) && (-1LL + (long long )i) - (long long )offset >= 0LL) || (((0LL - (long long )i) + (long long )offset >= 0LL && (long long )i - (long long )offset >= 0LL) && offset == i)) [2024-01-29 22:50:23,530 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] ((offset <= 2147483645) && (i <= 2147483646)) && (e == 0) [2024-01-29 22:50:23,530 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] (((offset <= 2147483645) && (i <= 2147483646)) && (e == 0)) && (((-2147483647 <= i && (1LL - (long long )i) + (long long )offset >= 0LL) && (-1LL + (long long )i) - (long long )offset >= 0LL) || (((0LL - (long long )i) + (long long )offset >= 0LL && (long long )i - (long long )offset >= 0LL) && offset == i)) [2024-01-29 22:50:23,531 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] ((offset <= 2147483645) && (i <= 2147483646)) && (e == 0) [2024-01-29 22:50:23,531 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] (offset <= 2147483645) && (i <= 2147483646) [2024-01-29 22:50:23,531 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] offset <= 2147483645 [2024-01-29 22:50:23,531 INFO L98 nessWitnessExtractor]: Location invariant before [L721-L721] offset <= 2147483646 [2024-01-29 22:50:23,531 INFO L98 nessWitnessExtractor]: Location invariant before [L721-L721] (offset <= 2147483646) && (offset % 2 == 0) [2024-01-29 22:50:23,531 INFO L98 nessWitnessExtractor]: Location invariant before [L721-L721] (offset <= 2147483646) && ((unsigned long )arg == 0UL) [2024-01-29 22:50:23,532 INFO L98 nessWitnessExtractor]: Location invariant before [L710-L710] (offset <= 2147483645) && (i <= 2147483646) [2024-01-29 22:50:23,532 INFO L98 nessWitnessExtractor]: Location invariant before [L710-L710] offset <= 2147483645 [2024-01-29 22:50:23,532 INFO L98 nessWitnessExtractor]: Location invariant before [L710-L710] ((offset <= 2147483645) && (i <= 2147483646)) && (((-2147483647 <= i && (1LL - (long long )i) + (long long )offset >= 0LL) && (-1LL + (long long )i) - (long long )offset >= 0LL) || (((0LL - (long long )i) + (long long )offset >= 0LL && (long long )i - (long long )offset >= 0LL) && offset == i)) [2024-01-29 22:50:23,532 INFO L98 nessWitnessExtractor]: Location invariant before [L710-L710] ((offset <= 2147483645) && (i <= 2147483646)) && (e == 0) [2024-01-29 22:50:23,592 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-29 22:50:23,885 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/09_fmaxsym.i[30453,30466] [2024-01-29 22:50:23,894 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 22:50:23,903 INFO L202 MainTranslator]: Completed pre-run [2024-01-29 22:50:23,958 WARN L424 MainDispatcher]: Unable to annotate void __VERIFIER_atomic_acquire() { assume_abort_if_not(m==0); m = 1; } with a witness entry [2024-01-29 22:50:23,958 WARN L424 MainDispatcher]: Unable to annotate void __VERIFIER_atomic_release() { assume_abort_if_not(m==1); m = 0; } with a witness entry Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-29 22:50:24,012 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/09_fmaxsym.i[30453,30466] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-29 22:50:24,017 WARN L424 MainDispatcher]: Unable to annotate ; with a witness entry Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-29 22:50:24,023 WARN L424 MainDispatcher]: Unable to annotate inline void findMax(int offset) { int i; int e; for(i = offset; i < offset+2; i++) { e = storage[i]; __VERIFIER_atomic_acquire(); { if(e > max) { max = e; } } __VERIFIER_atomic_release(); __VERIFIER_atomic_acquire(); { if(!(e <= max)) { ERROR: {reach_error();abort();}(void)0; } }; __VERIFIER_atomic_release(); } } with a witness entry Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-29 22:50:24,036 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 22:50:24,071 INFO L206 MainTranslator]: Completed translation [2024-01-29 22:50:24,072 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:50:24 WrapperNode [2024-01-29 22:50:24,072 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-29 22:50:24,073 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-29 22:50:24,073 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-29 22:50:24,073 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-29 22:50:24,078 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:50:24" (1/1) ... [2024-01-29 22:50:24,087 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:50:24" (1/1) ... [2024-01-29 22:50:24,117 INFO L138 Inliner]: procedures = 171, calls = 27, calls flagged for inlining = 10, calls inlined = 12, statements flattened = 146 [2024-01-29 22:50:24,117 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-29 22:50:24,118 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-29 22:50:24,118 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-29 22:50:24,118 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-29 22:50:24,126 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:50:24" (1/1) ... [2024-01-29 22:50:24,126 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:50:24" (1/1) ... [2024-01-29 22:50:24,130 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:50:24" (1/1) ... [2024-01-29 22:50:24,143 INFO L175 MemorySlicer]: Split 11 memory accesses to 3 slices as follows [2, 8, 1]. 73 percent of accesses are in the largest equivalence class. The 8 initializations are split as follows [2, 6, 0]. The 2 writes are split as follows [0, 1, 1]. [2024-01-29 22:50:24,144 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:50:24" (1/1) ... [2024-01-29 22:50:24,144 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:50:24" (1/1) ... [2024-01-29 22:50:24,151 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:50:24" (1/1) ... [2024-01-29 22:50:24,153 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:50:24" (1/1) ... [2024-01-29 22:50:24,155 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:50:24" (1/1) ... [2024-01-29 22:50:24,156 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:50:24" (1/1) ... [2024-01-29 22:50:24,158 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-29 22:50:24,159 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-29 22:50:24,159 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-29 22:50:24,159 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-29 22:50:24,160 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:50:24" (1/1) ... [2024-01-29 22:50:24,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 22:50:24,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 22:50:24,180 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-01-29 22:50:24,188 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-01-29 22:50:24,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-29 22:50:24,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-29 22:50:24,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-29 22:50:24,218 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-01-29 22:50:24,218 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-01-29 22:50:24,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-29 22:50:24,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-29 22:50:24,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-29 22:50:24,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-29 22:50:24,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-29 22:50:24,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-29 22:50:24,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-29 22:50:24,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-29 22:50:24,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-29 22:50:24,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-29 22:50:24,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-29 22:50:24,220 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-29 22:50:24,328 INFO L244 CfgBuilder]: Building ICFG [2024-01-29 22:50:24,330 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-29 22:50:24,693 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-29 22:50:24,693 INFO L293 CfgBuilder]: Performing block encoding [2024-01-29 22:50:24,761 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-29 22:50:24,761 INFO L320 CfgBuilder]: Removed 3 assume(true) statements. [2024-01-29 22:50:24,761 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 10:50:24 BoogieIcfgContainer [2024-01-29 22:50:24,761 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-29 22:50:24,763 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-29 22:50:24,763 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-29 22:50:24,765 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-29 22:50:24,766 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:50:22" (1/4) ... [2024-01-29 22:50:24,766 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@207ee1e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 10:50:24, skipping insertion in model container [2024-01-29 22:50:24,766 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.01 10:50:23" (2/4) ... [2024-01-29 22:50:24,766 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@207ee1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 10:50:24, skipping insertion in model container [2024-01-29 22:50:24,767 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:50:24" (3/4) ... [2024-01-29 22:50:24,767 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@207ee1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 10:50:24, skipping insertion in model container [2024-01-29 22:50:24,767 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 10:50:24" (4/4) ... [2024-01-29 22:50:24,768 INFO L112 eAbstractionObserver]: Analyzing ICFG 09_fmaxsym.i [2024-01-29 22:50:24,780 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-29 22:50:24,780 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2024-01-29 22:50:24,780 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-29 22:50:24,854 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-29 22:50:24,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 107 places, 108 transitions, 220 flow [2024-01-29 22:50:24,925 INFO L124 PetriNetUnfolderBase]: 4/110 cut-off events. [2024-01-29 22:50:24,925 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 22:50:24,928 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 110 events. 4/110 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 108 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 103. Up to 2 conditions per place. [2024-01-29 22:50:24,928 INFO L82 GeneralOperation]: Start removeDead. Operand has 107 places, 108 transitions, 220 flow [2024-01-29 22:50:24,934 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 107 places, 108 transitions, 220 flow [2024-01-29 22:50:24,942 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 22:50:24,946 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;@6e456900, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 22:50:24,947 INFO L358 AbstractCegarLoop]: Starting to check reachability of 89 error locations. [2024-01-29 22:50:24,949 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 22:50:24,949 INFO L124 PetriNetUnfolderBase]: 1/8 cut-off events. [2024-01-29 22:50:24,949 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 22:50:24,949 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:50:24,950 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-29 22:50:24,950 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 86 more)] === [2024-01-29 22:50:24,954 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:50:24,954 INFO L85 PathProgramCache]: Analyzing trace with hash -401718454, now seen corresponding path program 1 times [2024-01-29 22:50:24,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:50:24,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230145361] [2024-01-29 22:50:24,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:50:24,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:50:25,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:50:25,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:50:25,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:50:25,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230145361] [2024-01-29 22:50:25,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230145361] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:50:25,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:50:25,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 22:50:25,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738039767] [2024-01-29 22:50:25,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:50:25,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 22:50:25,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:50:25,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 22:50:25,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 22:50:25,277 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 108 [2024-01-29 22:50:25,279 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 108 transitions, 220 flow. Second operand has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:50:25,280 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:50:25,280 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 108 [2024-01-29 22:50:25,281 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:50:25,366 INFO L124 PetriNetUnfolderBase]: 29/314 cut-off events. [2024-01-29 22:50:25,366 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 22:50:25,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 385 conditions, 314 events. 29/314 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1204 event pairs, 22 based on Foata normal form. 3/200 useless extension candidates. Maximal degree in co-relation 365. Up to 66 conditions per place. [2024-01-29 22:50:25,373 INFO L140 encePairwiseOnDemand]: 103/108 looper letters, 17 selfloop transitions, 2 changer transitions 0/107 dead transitions. [2024-01-29 22:50:25,374 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 107 transitions, 256 flow [2024-01-29 22:50:25,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 22:50:25,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 22:50:25,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2024-01-29 22:50:25,389 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8827160493827161 [2024-01-29 22:50:25,391 INFO L175 Difference]: Start difference. First operand has 107 places, 108 transitions, 220 flow. Second operand 3 states and 286 transitions. [2024-01-29 22:50:25,391 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 107 transitions, 256 flow [2024-01-29 22:50:25,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 107 transitions, 256 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-01-29 22:50:25,396 INFO L231 Difference]: Finished difference. Result has 109 places, 107 transitions, 228 flow [2024-01-29 22:50:25,397 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=228, PETRI_PLACES=109, PETRI_TRANSITIONS=107} [2024-01-29 22:50:25,400 INFO L281 CegarLoopForPetriNet]: 107 programPoint places, 2 predicate places. [2024-01-29 22:50:25,400 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 107 transitions, 228 flow [2024-01-29 22:50:25,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:50:25,400 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:50:25,400 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:50:25,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-29 22:50:25,401 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 86 more)] === [2024-01-29 22:50:25,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:50:25,402 INFO L85 PathProgramCache]: Analyzing trace with hash 405421874, now seen corresponding path program 1 times [2024-01-29 22:50:25,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:50:25,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473279734] [2024-01-29 22:50:25,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:50:25,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:50:25,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:50:25,476 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:50:25,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:50:25,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473279734] [2024-01-29 22:50:25,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473279734] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-29 22:50:25,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1284612438] [2024-01-29 22:50:25,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:50:25,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-29 22:50:25,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 22:50:25,479 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-01-29 22:50:25,497 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-01-29 22:50:25,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:50:25,536 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 3 conjunts are in the unsatisfiable core [2024-01-29 22:50:25,539 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-29 22:50:25,568 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:50:25,568 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-29 22:50:25,584 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:50:25,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1284612438] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-29 22:50:25,585 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-29 22:50:25,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-01-29 22:50:25,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173880510] [2024-01-29 22:50:25,587 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-29 22:50:25,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-01-29 22:50:25,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:50:25,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-01-29 22:50:25,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-01-29 22:50:25,591 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 108 [2024-01-29 22:50:25,592 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 107 transitions, 228 flow. Second operand has 7 states, 7 states have (on average 89.42857142857143) internal successors, (626), 7 states have internal predecessors, (626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:50:25,593 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:50:25,593 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 108 [2024-01-29 22:50:25,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:50:25,725 INFO L124 PetriNetUnfolderBase]: 29/317 cut-off events. [2024-01-29 22:50:25,725 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 22:50:25,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 401 conditions, 317 events. 29/317 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1213 event pairs, 22 based on Foata normal form. 0/200 useless extension candidates. Maximal degree in co-relation 389. Up to 66 conditions per place. [2024-01-29 22:50:25,730 INFO L140 encePairwiseOnDemand]: 105/108 looper letters, 17 selfloop transitions, 5 changer transitions 0/110 dead transitions. [2024-01-29 22:50:25,730 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 110 transitions, 284 flow [2024-01-29 22:50:25,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-01-29 22:50:25,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-01-29 22:50:25,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 553 transitions. [2024-01-29 22:50:25,737 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8533950617283951 [2024-01-29 22:50:25,737 INFO L175 Difference]: Start difference. First operand has 109 places, 107 transitions, 228 flow. Second operand 6 states and 553 transitions. [2024-01-29 22:50:25,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 110 transitions, 284 flow [2024-01-29 22:50:25,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 110 transitions, 280 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-01-29 22:50:25,741 INFO L231 Difference]: Finished difference. Result has 116 places, 110 transitions, 260 flow [2024-01-29 22:50:25,741 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=260, PETRI_PLACES=116, PETRI_TRANSITIONS=110} [2024-01-29 22:50:25,742 INFO L281 CegarLoopForPetriNet]: 107 programPoint places, 9 predicate places. [2024-01-29 22:50:25,742 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 110 transitions, 260 flow [2024-01-29 22:50:25,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 89.42857142857143) internal successors, (626), 7 states have internal predecessors, (626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:50:25,743 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:50:25,743 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1] [2024-01-29 22:50:25,763 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-01-29 22:50:25,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-29 22:50:25,953 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 86 more)] === [2024-01-29 22:50:25,953 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:50:25,953 INFO L85 PathProgramCache]: Analyzing trace with hash 220331338, now seen corresponding path program 2 times [2024-01-29 22:50:25,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:50:25,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826051474] [2024-01-29 22:50:25,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:50:25,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:50:25,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:50:26,065 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:50:26,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:50:26,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826051474] [2024-01-29 22:50:26,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826051474] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-29 22:50:26,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [872964269] [2024-01-29 22:50:26,066 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-01-29 22:50:26,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-29 22:50:26,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 22:50:26,068 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-01-29 22:50:26,118 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-01-29 22:50:26,141 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-01-29 22:50:26,141 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-01-29 22:50:26,142 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 9 conjunts are in the unsatisfiable core [2024-01-29 22:50:26,143 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-29 22:50:26,166 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-01-29 22:50:26,166 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-01-29 22:50:26,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [872964269] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:50:26,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-01-29 22:50:26,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2024-01-29 22:50:26,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821552423] [2024-01-29 22:50:26,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:50:26,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:50:26,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:50:26,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:50:26,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-01-29 22:50:26,179 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 108 [2024-01-29 22:50:26,180 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 110 transitions, 260 flow. Second operand has 4 states, 4 states have (on average 85.75) internal successors, (343), 4 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:50:26,180 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:50:26,180 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 108 [2024-01-29 22:50:26,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:50:26,248 INFO L124 PetriNetUnfolderBase]: 31/324 cut-off events. [2024-01-29 22:50:26,248 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-29 22:50:26,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 426 conditions, 324 events. 31/324 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1234 event pairs, 0 based on Foata normal form. 0/207 useless extension candidates. Maximal degree in co-relation 392. Up to 63 conditions per place. [2024-01-29 22:50:26,251 INFO L140 encePairwiseOnDemand]: 103/108 looper letters, 24 selfloop transitions, 2 changer transitions 0/110 dead transitions. [2024-01-29 22:50:26,251 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 110 transitions, 312 flow [2024-01-29 22:50:26,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:50:26,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:50:26,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 361 transitions. [2024-01-29 22:50:26,253 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8356481481481481 [2024-01-29 22:50:26,253 INFO L175 Difference]: Start difference. First operand has 116 places, 110 transitions, 260 flow. Second operand 4 states and 361 transitions. [2024-01-29 22:50:26,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 110 transitions, 312 flow [2024-01-29 22:50:26,256 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 110 transitions, 298 flow, removed 6 selfloop flow, removed 1 redundant places. [2024-01-29 22:50:26,259 INFO L231 Difference]: Finished difference. Result has 115 places, 107 transitions, 244 flow [2024-01-29 22:50:26,262 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=244, PETRI_PLACES=115, PETRI_TRANSITIONS=107} [2024-01-29 22:50:26,263 INFO L281 CegarLoopForPetriNet]: 107 programPoint places, 8 predicate places. [2024-01-29 22:50:26,263 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 107 transitions, 244 flow [2024-01-29 22:50:26,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 85.75) internal successors, (343), 4 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:50:26,290 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:50:26,291 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 2, 1, 1, 1, 1, 1] [2024-01-29 22:50:26,316 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-01-29 22:50:26,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-01-29 22:50:26,502 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 86 more)] === [2024-01-29 22:50:26,503 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:50:26,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1759705064, now seen corresponding path program 1 times [2024-01-29 22:50:26,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:50:26,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216524103] [2024-01-29 22:50:26,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:50:26,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:50:26,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:50:26,607 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-01-29 22:50:26,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:50:26,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216524103] [2024-01-29 22:50:26,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216524103] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-29 22:50:26,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1677258643] [2024-01-29 22:50:26,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:50:26,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-29 22:50:26,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 22:50:26,612 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-01-29 22:50:26,615 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-01-29 22:50:26,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:50:26,672 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 6 conjunts are in the unsatisfiable core [2024-01-29 22:50:26,673 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-29 22:50:26,689 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-01-29 22:50:26,689 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-29 22:50:26,719 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-01-29 22:50:26,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1677258643] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-29 22:50:26,719 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-29 22:50:26,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 8 [2024-01-29 22:50:26,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279625459] [2024-01-29 22:50:26,720 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-29 22:50:26,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-01-29 22:50:26,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:50:26,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-01-29 22:50:26,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2024-01-29 22:50:26,722 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 108 [2024-01-29 22:50:26,723 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 107 transitions, 244 flow. Second operand has 9 states, 9 states have (on average 89.55555555555556) internal successors, (806), 9 states have internal predecessors, (806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:50:26,723 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:50:26,723 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 108 [2024-01-29 22:50:26,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:50:26,782 INFO L124 PetriNetUnfolderBase]: 29/314 cut-off events. [2024-01-29 22:50:26,782 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-01-29 22:50:26,783 INFO L83 FinitePrefix]: Finished finitePrefix Result has 413 conditions, 314 events. 29/314 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1191 event pairs, 22 based on Foata normal form. 2/201 useless extension candidates. Maximal degree in co-relation 377. Up to 66 conditions per place. [2024-01-29 22:50:26,783 INFO L140 encePairwiseOnDemand]: 105/108 looper letters, 17 selfloop transitions, 7 changer transitions 0/109 dead transitions. [2024-01-29 22:50:26,784 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 109 transitions, 304 flow [2024-01-29 22:50:26,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-01-29 22:50:26,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-01-29 22:50:26,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 730 transitions. [2024-01-29 22:50:26,785 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8449074074074074 [2024-01-29 22:50:26,785 INFO L175 Difference]: Start difference. First operand has 115 places, 107 transitions, 244 flow. Second operand 8 states and 730 transitions. [2024-01-29 22:50:26,785 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 109 transitions, 304 flow [2024-01-29 22:50:26,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 109 transitions, 301 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:50:26,788 INFO L231 Difference]: Finished difference. Result has 122 places, 109 transitions, 277 flow [2024-01-29 22:50:26,788 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=241, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=277, PETRI_PLACES=122, PETRI_TRANSITIONS=109} [2024-01-29 22:50:26,788 INFO L281 CegarLoopForPetriNet]: 107 programPoint places, 15 predicate places. [2024-01-29 22:50:26,789 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 109 transitions, 277 flow [2024-01-29 22:50:26,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 89.55555555555556) internal successors, (806), 9 states have internal predecessors, (806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:50:26,789 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:50:26,789 INFO L208 CegarLoopForPetriNet]: trace histogram [6, 2, 1, 1, 1, 1, 1] [2024-01-29 22:50:26,802 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-01-29 22:50:27,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-29 22:50:27,000 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 86 more)] === [2024-01-29 22:50:27,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:50:27,001 INFO L85 PathProgramCache]: Analyzing trace with hash 952347416, now seen corresponding path program 2 times [2024-01-29 22:50:27,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:50:27,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561046365] [2024-01-29 22:50:27,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:50:27,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:50:27,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 22:50:27,018 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-29 22:50:27,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 22:50:27,042 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-29 22:50:27,042 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-29 22:50:27,043 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (88 of 89 remaining) [2024-01-29 22:50:27,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (87 of 89 remaining) [2024-01-29 22:50:27,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (86 of 89 remaining) [2024-01-29 22:50:27,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (85 of 89 remaining) [2024-01-29 22:50:27,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (84 of 89 remaining) [2024-01-29 22:50:27,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (83 of 89 remaining) [2024-01-29 22:50:27,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (82 of 89 remaining) [2024-01-29 22:50:27,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (81 of 89 remaining) [2024-01-29 22:50:27,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err43ASSERT_VIOLATIONWITNESS_INVARIANT (80 of 89 remaining) [2024-01-29 22:50:27,046 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (79 of 89 remaining) [2024-01-29 22:50:27,046 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (78 of 89 remaining) [2024-01-29 22:50:27,046 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (77 of 89 remaining) [2024-01-29 22:50:27,046 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (76 of 89 remaining) [2024-01-29 22:50:27,046 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (75 of 89 remaining) [2024-01-29 22:50:27,046 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (74 of 89 remaining) [2024-01-29 22:50:27,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (73 of 89 remaining) [2024-01-29 22:50:27,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (72 of 89 remaining) [2024-01-29 22:50:27,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (71 of 89 remaining) [2024-01-29 22:50:27,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (70 of 89 remaining) [2024-01-29 22:50:27,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (69 of 89 remaining) [2024-01-29 22:50:27,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (68 of 89 remaining) [2024-01-29 22:50:27,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (67 of 89 remaining) [2024-01-29 22:50:27,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (66 of 89 remaining) [2024-01-29 22:50:27,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (65 of 89 remaining) [2024-01-29 22:50:27,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (64 of 89 remaining) [2024-01-29 22:50:27,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (63 of 89 remaining) [2024-01-29 22:50:27,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (62 of 89 remaining) [2024-01-29 22:50:27,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (61 of 89 remaining) [2024-01-29 22:50:27,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONWITNESS_INVARIANT (60 of 89 remaining) [2024-01-29 22:50:27,049 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONWITNESS_INVARIANT (59 of 89 remaining) [2024-01-29 22:50:27,049 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 89 remaining) [2024-01-29 22:50:27,049 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 89 remaining) [2024-01-29 22:50:27,049 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 89 remaining) [2024-01-29 22:50:27,049 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 89 remaining) [2024-01-29 22:50:27,049 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err32ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 89 remaining) [2024-01-29 22:50:27,050 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err33ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 89 remaining) [2024-01-29 22:50:27,050 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err34ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 89 remaining) [2024-01-29 22:50:27,050 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err35ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 89 remaining) [2024-01-29 22:50:27,050 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err36ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 89 remaining) [2024-01-29 22:50:27,050 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err37ASSERT_VIOLATIONERROR_FUNCTION (49 of 89 remaining) [2024-01-29 22:50:27,050 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err38ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 89 remaining) [2024-01-29 22:50:27,050 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err39ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 89 remaining) [2024-01-29 22:50:27,051 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err40ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 89 remaining) [2024-01-29 22:50:27,051 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err41ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 89 remaining) [2024-01-29 22:50:27,051 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err42ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 89 remaining) [2024-01-29 22:50:27,051 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 89 remaining) [2024-01-29 22:50:27,051 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 89 remaining) [2024-01-29 22:50:27,051 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 89 remaining) [2024-01-29 22:50:27,051 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 89 remaining) [2024-01-29 22:50:27,052 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 89 remaining) [2024-01-29 22:50:27,052 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 89 remaining) [2024-01-29 22:50:27,052 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 89 remaining) [2024-01-29 22:50:27,052 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err43ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 89 remaining) [2024-01-29 22:50:27,052 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 89 remaining) [2024-01-29 22:50:27,052 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 89 remaining) [2024-01-29 22:50:27,052 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 89 remaining) [2024-01-29 22:50:27,053 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 89 remaining) [2024-01-29 22:50:27,053 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 89 remaining) [2024-01-29 22:50:27,053 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 89 remaining) [2024-01-29 22:50:27,053 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 89 remaining) [2024-01-29 22:50:27,053 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 89 remaining) [2024-01-29 22:50:27,053 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 89 remaining) [2024-01-29 22:50:27,053 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 89 remaining) [2024-01-29 22:50:27,053 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 89 remaining) [2024-01-29 22:50:27,054 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 89 remaining) [2024-01-29 22:50:27,054 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 89 remaining) [2024-01-29 22:50:27,054 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 89 remaining) [2024-01-29 22:50:27,054 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 89 remaining) [2024-01-29 22:50:27,054 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 89 remaining) [2024-01-29 22:50:27,054 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 89 remaining) [2024-01-29 22:50:27,054 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 89 remaining) [2024-01-29 22:50:27,055 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 89 remaining) [2024-01-29 22:50:27,055 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 89 remaining) [2024-01-29 22:50:27,055 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 89 remaining) [2024-01-29 22:50:27,055 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 89 remaining) [2024-01-29 22:50:27,055 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 89 remaining) [2024-01-29 22:50:27,055 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 89 remaining) [2024-01-29 22:50:27,055 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 89 remaining) [2024-01-29 22:50:27,055 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err32ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 89 remaining) [2024-01-29 22:50:27,056 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err33ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 89 remaining) [2024-01-29 22:50:27,056 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err34ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 89 remaining) [2024-01-29 22:50:27,056 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err35ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 89 remaining) [2024-01-29 22:50:27,056 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err36ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 89 remaining) [2024-01-29 22:50:27,056 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err37ASSERT_VIOLATIONERROR_FUNCTION (5 of 89 remaining) [2024-01-29 22:50:27,056 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err38ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 89 remaining) [2024-01-29 22:50:27,056 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err39ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 89 remaining) [2024-01-29 22:50:27,057 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err40ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 89 remaining) [2024-01-29 22:50:27,057 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err41ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 89 remaining) [2024-01-29 22:50:27,057 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err42ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 89 remaining) [2024-01-29 22:50:27,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-29 22:50:27,057 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1] [2024-01-29 22:50:27,060 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-01-29 22:50:27,060 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-01-29 22:50:27,112 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-29 22:50:27,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 207 places, 209 transitions, 428 flow [2024-01-29 22:50:27,133 INFO L124 PetriNetUnfolderBase]: 7/214 cut-off events. [2024-01-29 22:50:27,133 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-29 22:50:27,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 222 conditions, 214 events. 7/214 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 583 event pairs, 0 based on Foata normal form. 0/116 useless extension candidates. Maximal degree in co-relation 203. Up to 3 conditions per place. [2024-01-29 22:50:27,135 INFO L82 GeneralOperation]: Start removeDead. Operand has 207 places, 209 transitions, 428 flow [2024-01-29 22:50:27,138 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 207 places, 209 transitions, 428 flow [2024-01-29 22:50:27,139 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 22:50:27,139 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;@6e456900, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 22:50:27,139 INFO L358 AbstractCegarLoop]: Starting to check reachability of 133 error locations. [2024-01-29 22:50:27,141 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 22:50:27,141 INFO L124 PetriNetUnfolderBase]: 1/8 cut-off events. [2024-01-29 22:50:27,141 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 22:50:27,141 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:50:27,141 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-29 22:50:27,141 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 130 more)] === [2024-01-29 22:50:27,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:50:27,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1486355854, now seen corresponding path program 1 times [2024-01-29 22:50:27,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:50:27,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301437986] [2024-01-29 22:50:27,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:50:27,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:50:27,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:50:27,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:50:27,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:50:27,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301437986] [2024-01-29 22:50:27,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301437986] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:50:27,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:50:27,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 22:50:27,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203970036] [2024-01-29 22:50:27,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:50:27,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 22:50:27,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:50:27,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 22:50:27,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 22:50:27,161 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 209 [2024-01-29 22:50:27,161 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 209 transitions, 428 flow. Second operand has 3 states, 3 states have (on average 176.33333333333334) internal successors, (529), 3 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:50:27,161 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:50:27,161 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 209 [2024-01-29 22:50:27,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:50:27,691 INFO L124 PetriNetUnfolderBase]: 927/5292 cut-off events. [2024-01-29 22:50:27,692 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-01-29 22:50:27,707 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6724 conditions, 5292 events. 927/5292 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 51362 event pairs, 728 based on Foata normal form. 60/3430 useless extension candidates. Maximal degree in co-relation 5399. Up to 1390 conditions per place. [2024-01-29 22:50:27,739 INFO L140 encePairwiseOnDemand]: 203/209 looper letters, 30 selfloop transitions, 2 changer transitions 0/207 dead transitions. [2024-01-29 22:50:27,739 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 207 transitions, 488 flow [2024-01-29 22:50:27,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 22:50:27,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 22:50:27,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 561 transitions. [2024-01-29 22:50:27,753 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8947368421052632 [2024-01-29 22:50:27,753 INFO L175 Difference]: Start difference. First operand has 207 places, 209 transitions, 428 flow. Second operand 3 states and 561 transitions. [2024-01-29 22:50:27,753 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 207 transitions, 488 flow [2024-01-29 22:50:27,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 207 transitions, 488 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-01-29 22:50:27,756 INFO L231 Difference]: Finished difference. Result has 209 places, 207 transitions, 434 flow [2024-01-29 22:50:27,757 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=422, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=204, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=434, PETRI_PLACES=209, PETRI_TRANSITIONS=207} [2024-01-29 22:50:27,757 INFO L281 CegarLoopForPetriNet]: 207 programPoint places, 2 predicate places. [2024-01-29 22:50:27,757 INFO L495 AbstractCegarLoop]: Abstraction has has 209 places, 207 transitions, 434 flow [2024-01-29 22:50:27,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 176.33333333333334) internal successors, (529), 3 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:50:27,757 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:50:27,758 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:50:27,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-29 22:50:27,758 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 130 more)] === [2024-01-29 22:50:27,758 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:50:27,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1196795513, now seen corresponding path program 1 times [2024-01-29 22:50:27,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:50:27,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44981067] [2024-01-29 22:50:27,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:50:27,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:50:27,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:50:27,804 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:50:27,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:50:27,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44981067] [2024-01-29 22:50:27,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44981067] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-29 22:50:27,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [430315243] [2024-01-29 22:50:27,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:50:27,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-29 22:50:27,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 22:50:27,825 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-01-29 22:50:27,855 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-01-29 22:50:27,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:50:27,885 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 3 conjunts are in the unsatisfiable core [2024-01-29 22:50:27,886 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-29 22:50:27,894 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:50:27,895 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-29 22:50:27,905 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:50:27,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [430315243] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-29 22:50:27,906 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-29 22:50:27,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-01-29 22:50:27,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430668281] [2024-01-29 22:50:27,906 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-29 22:50:27,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-01-29 22:50:27,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:50:27,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-01-29 22:50:27,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-01-29 22:50:27,909 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 209 [2024-01-29 22:50:27,910 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 207 transitions, 434 flow. Second operand has 7 states, 7 states have (on average 176.42857142857142) internal successors, (1235), 7 states have internal predecessors, (1235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:50:27,910 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:50:27,910 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 209 [2024-01-29 22:50:27,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:50:28,374 INFO L124 PetriNetUnfolderBase]: 927/5295 cut-off events. [2024-01-29 22:50:28,374 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-01-29 22:50:28,383 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6740 conditions, 5295 events. 927/5295 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 51380 event pairs, 728 based on Foata normal form. 0/3373 useless extension candidates. Maximal degree in co-relation 6727. Up to 1390 conditions per place. [2024-01-29 22:50:28,402 INFO L140 encePairwiseOnDemand]: 206/209 looper letters, 30 selfloop transitions, 5 changer transitions 0/210 dead transitions. [2024-01-29 22:50:28,402 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 210 transitions, 516 flow [2024-01-29 22:50:28,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-01-29 22:50:28,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-01-29 22:50:28,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1088 transitions. [2024-01-29 22:50:28,404 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8676236044657097 [2024-01-29 22:50:28,405 INFO L175 Difference]: Start difference. First operand has 209 places, 207 transitions, 434 flow. Second operand 6 states and 1088 transitions. [2024-01-29 22:50:28,405 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 210 transitions, 516 flow [2024-01-29 22:50:28,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 210 transitions, 512 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-01-29 22:50:28,409 INFO L231 Difference]: Finished difference. Result has 216 places, 210 transitions, 466 flow [2024-01-29 22:50:28,409 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=430, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=204, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=466, PETRI_PLACES=216, PETRI_TRANSITIONS=210} [2024-01-29 22:50:28,410 INFO L281 CegarLoopForPetriNet]: 207 programPoint places, 9 predicate places. [2024-01-29 22:50:28,410 INFO L495 AbstractCegarLoop]: Abstraction has has 216 places, 210 transitions, 466 flow [2024-01-29 22:50:28,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 176.42857142857142) internal successors, (1235), 7 states have internal predecessors, (1235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:50:28,411 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:50:28,411 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1] [2024-01-29 22:50:28,425 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-01-29 22:50:28,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-29 22:50:28,623 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 130 more)] === [2024-01-29 22:50:28,624 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:50:28,624 INFO L85 PathProgramCache]: Analyzing trace with hash -129256498, now seen corresponding path program 2 times [2024-01-29 22:50:28,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:50:28,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691674461] [2024-01-29 22:50:28,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:50:28,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:50:28,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:50:28,700 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:50:28,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:50:28,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691674461] [2024-01-29 22:50:28,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691674461] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-29 22:50:28,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1306638781] [2024-01-29 22:50:28,701 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-01-29 22:50:28,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-29 22:50:28,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 22:50:28,702 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-01-29 22:50:28,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-01-29 22:50:28,778 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-01-29 22:50:28,779 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-01-29 22:50:28,779 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 9 conjunts are in the unsatisfiable core [2024-01-29 22:50:28,780 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-29 22:50:28,799 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-01-29 22:50:28,799 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-01-29 22:50:28,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1306638781] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:50:28,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-01-29 22:50:28,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2024-01-29 22:50:28,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325159270] [2024-01-29 22:50:28,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:50:28,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:50:28,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:50:28,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:50:28,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-01-29 22:50:28,812 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 209 [2024-01-29 22:50:28,812 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 210 transitions, 466 flow. Second operand has 4 states, 4 states have (on average 172.75) internal successors, (691), 4 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:50:28,813 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:50:28,813 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 209 [2024-01-29 22:50:28,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:50:29,291 INFO L124 PetriNetUnfolderBase]: 988/5854 cut-off events. [2024-01-29 22:50:29,291 INFO L125 PetriNetUnfolderBase]: For 42/42 co-relation queries the response was YES. [2024-01-29 22:50:29,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7406 conditions, 5854 events. 988/5854 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 58043 event pairs, 409 based on Foata normal form. 0/3737 useless extension candidates. Maximal degree in co-relation 7371. Up to 1412 conditions per place. [2024-01-29 22:50:29,320 INFO L140 encePairwiseOnDemand]: 204/209 looper letters, 50 selfloop transitions, 2 changer transitions 0/223 dead transitions. [2024-01-29 22:50:29,321 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 223 transitions, 601 flow [2024-01-29 22:50:29,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:50:29,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:50:29,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 735 transitions. [2024-01-29 22:50:29,322 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8791866028708134 [2024-01-29 22:50:29,322 INFO L175 Difference]: Start difference. First operand has 216 places, 210 transitions, 466 flow. Second operand 4 states and 735 transitions. [2024-01-29 22:50:29,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 223 transitions, 601 flow [2024-01-29 22:50:29,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 223 transitions, 587 flow, removed 6 selfloop flow, removed 1 redundant places. [2024-01-29 22:50:29,325 INFO L231 Difference]: Finished difference. Result has 215 places, 207 transitions, 450 flow [2024-01-29 22:50:29,326 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=446, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=450, PETRI_PLACES=215, PETRI_TRANSITIONS=207} [2024-01-29 22:50:29,326 INFO L281 CegarLoopForPetriNet]: 207 programPoint places, 8 predicate places. [2024-01-29 22:50:29,326 INFO L495 AbstractCegarLoop]: Abstraction has has 215 places, 207 transitions, 450 flow [2024-01-29 22:50:29,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 172.75) internal successors, (691), 4 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:50:29,327 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:50:29,327 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:50:29,340 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-01-29 22:50:29,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-29 22:50:29,541 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 130 more)] === [2024-01-29 22:50:29,541 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:50:29,541 INFO L85 PathProgramCache]: Analyzing trace with hash 288016683, now seen corresponding path program 1 times [2024-01-29 22:50:29,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:50:29,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744973480] [2024-01-29 22:50:29,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:50:29,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:50:29,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:50:29,589 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:50:29,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:50:29,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744973480] [2024-01-29 22:50:29,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744973480] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-29 22:50:29,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [609495635] [2024-01-29 22:50:29,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:50:29,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-29 22:50:29,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 22:50:29,604 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-01-29 22:50:29,607 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-01-29 22:50:29,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:50:29,667 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 6 conjunts are in the unsatisfiable core [2024-01-29 22:50:29,667 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-29 22:50:29,677 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:50:29,678 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-29 22:50:29,705 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:50:29,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [609495635] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-29 22:50:29,706 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-29 22:50:29,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 8 [2024-01-29 22:50:29,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440333650] [2024-01-29 22:50:29,706 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-29 22:50:29,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-01-29 22:50:29,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:50:29,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-01-29 22:50:29,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2024-01-29 22:50:29,708 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 209 [2024-01-29 22:50:29,710 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 207 transitions, 450 flow. Second operand has 9 states, 9 states have (on average 176.55555555555554) internal successors, (1589), 9 states have internal predecessors, (1589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:50:29,710 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:50:29,710 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 209 [2024-01-29 22:50:29,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:50:30,155 INFO L124 PetriNetUnfolderBase]: 927/5283 cut-off events. [2024-01-29 22:50:30,156 INFO L125 PetriNetUnfolderBase]: For 53/53 co-relation queries the response was YES. [2024-01-29 22:50:30,233 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6743 conditions, 5283 events. 927/5283 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 51136 event pairs, 728 based on Foata normal form. 2/3365 useless extension candidates. Maximal degree in co-relation 6706. Up to 1390 conditions per place. [2024-01-29 22:50:30,247 INFO L140 encePairwiseOnDemand]: 206/209 looper letters, 30 selfloop transitions, 7 changer transitions 0/209 dead transitions. [2024-01-29 22:50:30,248 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 209 transitions, 536 flow [2024-01-29 22:50:30,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-01-29 22:50:30,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-01-29 22:50:30,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1439 transitions. [2024-01-29 22:50:30,250 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8606459330143541 [2024-01-29 22:50:30,251 INFO L175 Difference]: Start difference. First operand has 215 places, 207 transitions, 450 flow. Second operand 8 states and 1439 transitions. [2024-01-29 22:50:30,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 209 transitions, 536 flow [2024-01-29 22:50:30,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 209 transitions, 533 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:50:30,254 INFO L231 Difference]: Finished difference. Result has 222 places, 209 transitions, 483 flow [2024-01-29 22:50:30,254 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=447, PETRI_DIFFERENCE_MINUEND_PLACES=213, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=483, PETRI_PLACES=222, PETRI_TRANSITIONS=209} [2024-01-29 22:50:30,255 INFO L281 CegarLoopForPetriNet]: 207 programPoint places, 15 predicate places. [2024-01-29 22:50:30,255 INFO L495 AbstractCegarLoop]: Abstraction has has 222 places, 209 transitions, 483 flow [2024-01-29 22:50:30,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 176.55555555555554) internal successors, (1589), 9 states have internal predecessors, (1589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:50:30,256 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:50:30,257 INFO L208 CegarLoopForPetriNet]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:50:30,267 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-01-29 22:50:30,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-29 22:50:30,467 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 130 more)] === [2024-01-29 22:50:30,468 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:50:30,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1278099957, now seen corresponding path program 2 times [2024-01-29 22:50:30,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:50:30,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937950236] [2024-01-29 22:50:30,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:50:30,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:50:30,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 22:50:30,481 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-29 22:50:30,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 22:50:30,497 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-29 22:50:30,499 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-29 22:50:30,499 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (132 of 133 remaining) [2024-01-29 22:50:30,499 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (131 of 133 remaining) [2024-01-29 22:50:30,499 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (130 of 133 remaining) [2024-01-29 22:50:30,499 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (129 of 133 remaining) [2024-01-29 22:50:30,499 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (128 of 133 remaining) [2024-01-29 22:50:30,499 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (127 of 133 remaining) [2024-01-29 22:50:30,500 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (126 of 133 remaining) [2024-01-29 22:50:30,500 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (125 of 133 remaining) [2024-01-29 22:50:30,500 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err43ASSERT_VIOLATIONWITNESS_INVARIANT (124 of 133 remaining) [2024-01-29 22:50:30,500 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (123 of 133 remaining) [2024-01-29 22:50:30,500 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (122 of 133 remaining) [2024-01-29 22:50:30,500 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (121 of 133 remaining) [2024-01-29 22:50:30,500 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (120 of 133 remaining) [2024-01-29 22:50:30,500 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (119 of 133 remaining) [2024-01-29 22:50:30,501 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (118 of 133 remaining) [2024-01-29 22:50:30,501 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (117 of 133 remaining) [2024-01-29 22:50:30,501 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (116 of 133 remaining) [2024-01-29 22:50:30,501 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (115 of 133 remaining) [2024-01-29 22:50:30,501 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (114 of 133 remaining) [2024-01-29 22:50:30,501 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (113 of 133 remaining) [2024-01-29 22:50:30,501 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (112 of 133 remaining) [2024-01-29 22:50:30,501 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (111 of 133 remaining) [2024-01-29 22:50:30,502 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (110 of 133 remaining) [2024-01-29 22:50:30,502 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (109 of 133 remaining) [2024-01-29 22:50:30,502 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (108 of 133 remaining) [2024-01-29 22:50:30,502 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (107 of 133 remaining) [2024-01-29 22:50:30,502 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (106 of 133 remaining) [2024-01-29 22:50:30,502 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (105 of 133 remaining) [2024-01-29 22:50:30,502 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONWITNESS_INVARIANT (104 of 133 remaining) [2024-01-29 22:50:30,502 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONWITNESS_INVARIANT (103 of 133 remaining) [2024-01-29 22:50:30,503 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONWITNESS_INVARIANT (102 of 133 remaining) [2024-01-29 22:50:30,503 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONWITNESS_INVARIANT (101 of 133 remaining) [2024-01-29 22:50:30,503 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30ASSERT_VIOLATIONWITNESS_INVARIANT (100 of 133 remaining) [2024-01-29 22:50:30,503 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31ASSERT_VIOLATIONWITNESS_INVARIANT (99 of 133 remaining) [2024-01-29 22:50:30,503 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err32ASSERT_VIOLATIONWITNESS_INVARIANT (98 of 133 remaining) [2024-01-29 22:50:30,503 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err33ASSERT_VIOLATIONWITNESS_INVARIANT (97 of 133 remaining) [2024-01-29 22:50:30,503 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err34ASSERT_VIOLATIONWITNESS_INVARIANT (96 of 133 remaining) [2024-01-29 22:50:30,503 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err35ASSERT_VIOLATIONWITNESS_INVARIANT (95 of 133 remaining) [2024-01-29 22:50:30,503 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err36ASSERT_VIOLATIONWITNESS_INVARIANT (94 of 133 remaining) [2024-01-29 22:50:30,504 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err37ASSERT_VIOLATIONERROR_FUNCTION (93 of 133 remaining) [2024-01-29 22:50:30,504 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err38ASSERT_VIOLATIONWITNESS_INVARIANT (92 of 133 remaining) [2024-01-29 22:50:30,504 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err39ASSERT_VIOLATIONWITNESS_INVARIANT (91 of 133 remaining) [2024-01-29 22:50:30,504 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err40ASSERT_VIOLATIONWITNESS_INVARIANT (90 of 133 remaining) [2024-01-29 22:50:30,504 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err41ASSERT_VIOLATIONWITNESS_INVARIANT (89 of 133 remaining) [2024-01-29 22:50:30,504 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err42ASSERT_VIOLATIONWITNESS_INVARIANT (88 of 133 remaining) [2024-01-29 22:50:30,504 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (87 of 133 remaining) [2024-01-29 22:50:30,504 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (86 of 133 remaining) [2024-01-29 22:50:30,505 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (85 of 133 remaining) [2024-01-29 22:50:30,505 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (84 of 133 remaining) [2024-01-29 22:50:30,505 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (83 of 133 remaining) [2024-01-29 22:50:30,505 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (82 of 133 remaining) [2024-01-29 22:50:30,505 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (81 of 133 remaining) [2024-01-29 22:50:30,505 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (80 of 133 remaining) [2024-01-29 22:50:30,505 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err43ASSERT_VIOLATIONWITNESS_INVARIANT (79 of 133 remaining) [2024-01-29 22:50:30,505 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (78 of 133 remaining) [2024-01-29 22:50:30,505 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (77 of 133 remaining) [2024-01-29 22:50:30,506 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (76 of 133 remaining) [2024-01-29 22:50:30,506 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (75 of 133 remaining) [2024-01-29 22:50:30,506 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (74 of 133 remaining) [2024-01-29 22:50:30,506 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (73 of 133 remaining) [2024-01-29 22:50:30,506 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (72 of 133 remaining) [2024-01-29 22:50:30,506 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (71 of 133 remaining) [2024-01-29 22:50:30,506 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (70 of 133 remaining) [2024-01-29 22:50:30,506 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (69 of 133 remaining) [2024-01-29 22:50:30,506 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (68 of 133 remaining) [2024-01-29 22:50:30,507 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (67 of 133 remaining) [2024-01-29 22:50:30,507 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (66 of 133 remaining) [2024-01-29 22:50:30,507 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (65 of 133 remaining) [2024-01-29 22:50:30,507 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (64 of 133 remaining) [2024-01-29 22:50:30,507 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (63 of 133 remaining) [2024-01-29 22:50:30,507 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (62 of 133 remaining) [2024-01-29 22:50:30,507 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (61 of 133 remaining) [2024-01-29 22:50:30,507 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (60 of 133 remaining) [2024-01-29 22:50:30,508 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONWITNESS_INVARIANT (59 of 133 remaining) [2024-01-29 22:50:30,508 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 133 remaining) [2024-01-29 22:50:30,508 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 133 remaining) [2024-01-29 22:50:30,508 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 133 remaining) [2024-01-29 22:50:30,508 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 133 remaining) [2024-01-29 22:50:30,508 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 133 remaining) [2024-01-29 22:50:30,508 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err32ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 133 remaining) [2024-01-29 22:50:30,510 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err33ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 133 remaining) [2024-01-29 22:50:30,510 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err34ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 133 remaining) [2024-01-29 22:50:30,510 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err35ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 133 remaining) [2024-01-29 22:50:30,510 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err36ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 133 remaining) [2024-01-29 22:50:30,510 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err37ASSERT_VIOLATIONERROR_FUNCTION (48 of 133 remaining) [2024-01-29 22:50:30,510 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err38ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 133 remaining) [2024-01-29 22:50:30,510 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err39ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 133 remaining) [2024-01-29 22:50:30,511 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err40ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 133 remaining) [2024-01-29 22:50:30,511 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err41ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 133 remaining) [2024-01-29 22:50:30,511 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err42ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 133 remaining) [2024-01-29 22:50:30,511 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 133 remaining) [2024-01-29 22:50:30,511 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 133 remaining) [2024-01-29 22:50:30,511 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 133 remaining) [2024-01-29 22:50:30,511 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 133 remaining) [2024-01-29 22:50:30,511 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 133 remaining) [2024-01-29 22:50:30,511 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 133 remaining) [2024-01-29 22:50:30,512 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err43ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 133 remaining) [2024-01-29 22:50:30,512 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 133 remaining) [2024-01-29 22:50:30,512 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 133 remaining) [2024-01-29 22:50:30,512 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 133 remaining) [2024-01-29 22:50:30,512 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 133 remaining) [2024-01-29 22:50:30,512 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 133 remaining) [2024-01-29 22:50:30,512 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 133 remaining) [2024-01-29 22:50:30,512 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 133 remaining) [2024-01-29 22:50:30,512 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 133 remaining) [2024-01-29 22:50:30,513 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 133 remaining) [2024-01-29 22:50:30,513 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 133 remaining) [2024-01-29 22:50:30,513 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 133 remaining) [2024-01-29 22:50:30,513 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 133 remaining) [2024-01-29 22:50:30,513 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 133 remaining) [2024-01-29 22:50:30,513 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 133 remaining) [2024-01-29 22:50:30,513 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 133 remaining) [2024-01-29 22:50:30,513 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 133 remaining) [2024-01-29 22:50:30,514 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 133 remaining) [2024-01-29 22:50:30,514 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 133 remaining) [2024-01-29 22:50:30,514 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 133 remaining) [2024-01-29 22:50:30,514 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 133 remaining) [2024-01-29 22:50:30,514 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 133 remaining) [2024-01-29 22:50:30,514 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 133 remaining) [2024-01-29 22:50:30,514 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 133 remaining) [2024-01-29 22:50:30,514 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 133 remaining) [2024-01-29 22:50:30,514 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 133 remaining) [2024-01-29 22:50:30,515 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err32ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 133 remaining) [2024-01-29 22:50:30,515 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err33ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 133 remaining) [2024-01-29 22:50:30,515 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err34ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 133 remaining) [2024-01-29 22:50:30,515 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err35ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 133 remaining) [2024-01-29 22:50:30,515 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err36ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 133 remaining) [2024-01-29 22:50:30,515 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err37ASSERT_VIOLATIONERROR_FUNCTION (5 of 133 remaining) [2024-01-29 22:50:30,515 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err38ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 133 remaining) [2024-01-29 22:50:30,515 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err39ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 133 remaining) [2024-01-29 22:50:30,516 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err40ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 133 remaining) [2024-01-29 22:50:30,516 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err41ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 133 remaining) [2024-01-29 22:50:30,516 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err42ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 133 remaining) [2024-01-29 22:50:30,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-01-29 22:50:30,517 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1] [2024-01-29 22:50:30,522 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2024-01-29 22:50:30,523 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-29 22:50:30,540 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2024-01-29 22:50:30,547 INFO L503 ceAbstractionStarter]: Automizer considered 43 witness invariants [2024-01-29 22:50:30,547 INFO L504 ceAbstractionStarter]: WitnessConsidered=43 [2024-01-29 22:50:30,547 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.01 10:50:30 BasicIcfg [2024-01-29 22:50:30,547 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-29 22:50:30,548 INFO L158 Benchmark]: Toolchain (without parser) took 7085.61ms. Allocated memory was 151.0MB in the beginning and 421.5MB in the end (delta: 270.5MB). Free memory was 73.2MB in the beginning and 328.7MB in the end (delta: -255.5MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. [2024-01-29 22:50:30,548 INFO L158 Benchmark]: Witness Parser took 0.16ms. Allocated memory is still 151.0MB. Free memory is still 101.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 22:50:30,548 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 151.0MB. Free memory is still 119.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 22:50:30,548 INFO L158 Benchmark]: CACSL2BoogieTranslator took 608.34ms. Allocated memory was 151.0MB in the beginning and 211.8MB in the end (delta: 60.8MB). Free memory was 72.9MB in the beginning and 162.7MB in the end (delta: -89.8MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. [2024-01-29 22:50:30,548 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.17ms. Allocated memory is still 211.8MB. Free memory was 162.7MB in the beginning and 159.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-29 22:50:30,549 INFO L158 Benchmark]: Boogie Preprocessor took 40.61ms. Allocated memory is still 211.8MB. Free memory was 159.6MB in the beginning and 157.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-29 22:50:30,549 INFO L158 Benchmark]: RCFGBuilder took 602.76ms. Allocated memory is still 211.8MB. Free memory was 157.5MB in the beginning and 112.4MB in the end (delta: 45.1MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2024-01-29 22:50:30,549 INFO L158 Benchmark]: TraceAbstraction took 5784.50ms. Allocated memory was 211.8MB in the beginning and 421.5MB in the end (delta: 209.7MB). Free memory was 111.4MB in the beginning and 328.7MB in the end (delta: -217.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 22:50:30,551 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.16ms. Allocated memory is still 151.0MB. Free memory is still 101.8MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.14ms. Allocated memory is still 151.0MB. Free memory is still 119.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 608.34ms. Allocated memory was 151.0MB in the beginning and 211.8MB in the end (delta: 60.8MB). Free memory was 72.9MB in the beginning and 162.7MB in the end (delta: -89.8MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.17ms. Allocated memory is still 211.8MB. Free memory was 162.7MB in the beginning and 159.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.61ms. Allocated memory is still 211.8MB. Free memory was 159.6MB in the beginning and 157.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 602.76ms. Allocated memory is still 211.8MB. Free memory was 157.5MB in the beginning and 112.4MB in the end (delta: 45.1MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * TraceAbstraction took 5784.50ms. Allocated memory was 211.8MB in the beginning and 421.5MB in the end (delta: 209.7MB). Free memory was 111.4MB in the beginning and 328.7MB in the end (delta: -217.3MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 721]: invariant of correctness witness can be violated invariant of correctness witness can be violated We found a FailurePath: [L689] 0 volatile int max = 0x80000000, m = 0; [L700] 0 int storage[2*3]; [L700] 0 int storage[2*3]; [L700] 0 int storage[2*3]; [L700] 0 int storage[2*3]; [L700] 0 int storage[2*3]; [L700] 0 int storage[2*3]; [L700] 0 int storage[2*3]; [L726] 0 int i = 0; VAL [i=0, m=0, max=-2147483648, storage={3:0}] [L726] COND TRUE 0 i < 2*3 [L727] 0 storage[i] = __VERIFIER_nondet_int() [L726] 0 i++ VAL [i=1, m=0, max=-2147483648, storage={3:0}] [L726] COND TRUE 0 i < 2*3 [L727] 0 storage[i] = __VERIFIER_nondet_int() [L726] 0 i++ VAL [i=2, m=0, max=-2147483648, storage={3:0}] [L726] COND TRUE 0 i < 2*3 [L727] 0 storage[i] = __VERIFIER_nondet_int() [L726] 0 i++ VAL [i=3, m=0, max=-2147483648, storage={3:0}] [L726] COND TRUE 0 i < 2*3 [L727] 0 storage[i] = __VERIFIER_nondet_int() [L726] 0 i++ VAL [i=4, m=0, max=-2147483648, storage={3:0}] [L726] COND TRUE 0 i < 2*3 [L727] 0 storage[i] = __VERIFIER_nondet_int() [L726] 0 i++ VAL [i=5, m=0, max=-2147483648, storage={3:0}] [L726] COND TRUE 0 i < 2*3 [L727] 0 storage[i] = __VERIFIER_nondet_int() [L726] 0 i++ VAL [i=6, m=0, max=-2147483648, storage={3:0}] [L726] COND FALSE 0 !(i < 2*3) [L728] 0 pthread_t t; VAL [m=0, max=-2147483648, storage={3:0}, t={5:0}] [L729] COND TRUE 0 1 [L729] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [m=0, max=-2147483648, storage={3:0}, t={5:0}] [L720] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] [L720] 1 int offset=__VERIFIER_nondet_int(); [L721] 1 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[COMPLEQ,IdentifierExpression[offset],IntegerLiteral[2147483646]],BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]]] VAL [arg={0:0}, arg={0:0}, m=0, max=-2147483648, offset=2147483647, storage={3:0}] - UnprovableResult [Line: 720]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 721]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 721]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 722]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 705]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 723]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 710]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 713]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 710]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 713]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 710]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 713]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 710]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 713]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 715]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 715]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 715]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 715]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 715]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 715]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 715]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 715]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 715]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 716]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 716]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 716]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 716]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 705]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 729]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 203 locations, 89 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: 2.2s, OverallIterations: 5, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 42 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 35 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 221 IncrementalHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 2 mSDtfsCounter, 221 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 35 SyntacticMatches, 4 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=277occurred in iteration=4, InterpolantAutomatonStates: 21, 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: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 75 NumberOfCodeBlocks, 71 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 71 ConstructedInterpolants, 0 QuantifiedInterpolants, 137 SizeOfPredicates, 2 NumberOfNonLiveVariables, 281 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 9 InterpolantComputations, 2 PerfectInterpolantSequences, 16/59 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 - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 301 locations, 133 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.4s, OverallIterations: 5, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 73 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 65 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 393 IncrementalHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 0 mSDtfsCounter, 393 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 35 SyntacticMatches, 4 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=483occurred in iteration=4, InterpolantAutomatonStates: 21, 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, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 75 NumberOfCodeBlocks, 71 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 71 ConstructedInterpolants, 0 QuantifiedInterpolants, 137 SizeOfPredicates, 2 NumberOfNonLiveVariables, 280 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 9 InterpolantComputations, 2 PerfectInterpolantSequences, 10/53 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-01-29 22:50:30,583 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE