./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 ab2e0ac4 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/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-ab2e0ac-m [2024-01-29 14:11:55,940 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-29 14:11:55,986 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-29 14:11:55,990 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-29 14:11:55,990 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-29 14:11:56,022 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-29 14:11:56,023 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-29 14:11:56,023 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-29 14:11:56,024 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-29 14:11:56,024 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-29 14:11:56,024 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-29 14:11:56,024 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-29 14:11:56,025 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-29 14:11:56,025 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-29 14:11:56,025 INFO L153 SettingsManager]: * Use SBE=true [2024-01-29 14:11:56,026 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-29 14:11:56,026 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-29 14:11:56,026 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-29 14:11:56,027 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-29 14:11:56,027 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-29 14:11:56,027 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-29 14:11:56,028 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-29 14:11:56,028 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-29 14:11:56,028 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-29 14:11:56,029 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-29 14:11:56,029 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-29 14:11:56,029 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-29 14:11:56,029 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-29 14:11:56,030 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-29 14:11:56,030 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-29 14:11:56,030 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-29 14:11:56,031 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-29 14:11:56,031 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 14:11:56,031 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-29 14:11:56,031 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-29 14:11:56,032 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-29 14:11:56,032 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-29 14:11:56,032 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-29 14:11:56,032 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-29 14:11:56,033 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-29 14:11:56,033 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-29 14:11:56,044 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-29 14:11:56,045 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-29 14:11:56,045 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-29 14:11:56,210 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-29 14:11:56,230 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-29 14:11:56,232 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-29 14:11:56,233 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-29 14:11:56,234 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-29 14:11:56,235 INFO L431 ainManager$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 14:11:56,362 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-29 14:11:56,362 INFO L274 PluginConnector]: CDTParser initialized [2024-01-29 14:11:56,363 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/09_fmaxsym.i [2024-01-29 14:11:57,373 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-29 14:11:57,620 INFO L384 CDTParser]: Found 1 translation units. [2024-01-29 14:11:57,621 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/09_fmaxsym.i [2024-01-29 14:11:57,640 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51a4d33a8/7ac5dc5dd79b4dd29f659e0fe30f0d1a/FLAG73c4d28f6 [2024-01-29 14:11:57,652 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51a4d33a8/7ac5dc5dd79b4dd29f659e0fe30f0d1a [2024-01-29 14:11:57,652 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-29 14:11:57,653 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-29 14:11:57,654 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-29 14:11:57,654 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-29 14:11:57,657 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-29 14:11:57,658 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:11:56" (1/2) ... [2024-01-29 14:11:57,659 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28addd26 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:11:57, skipping insertion in model container [2024-01-29 14:11:57,659 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:11:56" (1/2) ... [2024-01-29 14:11:57,660 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@41baa10a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:11:57, skipping insertion in model container [2024-01-29 14:11:57,660 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 02:11:57" (2/2) ... [2024-01-29 14:11:57,660 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28addd26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:11:57, skipping insertion in model container [2024-01-29 14:11:57,660 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 02:11:57" (2/2) ... [2024-01-29 14:11:57,660 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-29 14:11:57,719 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-29 14:11:57,720 INFO L98 nessWitnessExtractor]: Location invariant after [L701-L718] (2LL - (long long )i) + (long long )offset >= 0LL [2024-01-29 14:11:57,720 INFO L98 nessWitnessExtractor]: Location invariant after [L701-L718] offset <= 2147483645 [2024-01-29 14:11:57,720 INFO L98 nessWitnessExtractor]: Location invariant after [L701-L718] -2147483646 <= i [2024-01-29 14:11:57,720 INFO L98 nessWitnessExtractor]: Location invariant after [L701-L718] e == 0 [2024-01-29 14:11:57,720 INFO L98 nessWitnessExtractor]: Location invariant after [L701-L718] (-2LL + (long long )i) - (long long )offset >= 0LL [2024-01-29 14:11:57,720 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 14:11:57,720 INFO L98 nessWitnessExtractor]: Location invariant before [L714-L714] i <= 2147483646 [2024-01-29 14:11:57,721 INFO L98 nessWitnessExtractor]: Location invariant before [L714-L714] offset <= 2147483645 [2024-01-29 14:11:57,721 INFO L98 nessWitnessExtractor]: Location invariant before [L714-L714] e == 0 [2024-01-29 14:11:57,721 INFO L98 nessWitnessExtractor]: Location invariant before [L714-L714] ((-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 14:11:57,721 INFO L98 nessWitnessExtractor]: Location invariant before [L721-L721] (unsigned long )arg == 0UL [2024-01-29 14:11:57,721 INFO L98 nessWitnessExtractor]: Location invariant before [L721-L721] offset % 2 == 0 [2024-01-29 14:11:57,721 INFO L98 nessWitnessExtractor]: Location invariant before [L721-L721] offset <= 2147483646 [2024-01-29 14:11:57,721 INFO L98 nessWitnessExtractor]: Location invariant before [L723-L723] (unsigned long )arg == 0UL [2024-01-29 14:11:57,721 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] offset <= 2147483645 [2024-01-29 14:11:57,721 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] e == 0 [2024-01-29 14:11:57,721 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] i <= 2147483646 [2024-01-29 14:11:57,721 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] offset <= 2147483645 [2024-01-29 14:11:57,721 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] ((-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 14:11:57,721 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] e == 0 [2024-01-29 14:11:57,722 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] ((-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 14:11:57,722 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] i <= 2147483646 [2024-01-29 14:11:57,722 INFO L98 nessWitnessExtractor]: Location invariant before [L720-L720] (unsigned long )arg == 0UL [2024-01-29 14:11:57,722 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] e == 0 [2024-01-29 14:11:57,722 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] i <= 2147483646 [2024-01-29 14:11:57,722 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] e == 0 [2024-01-29 14:11:57,722 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] ((-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 14:11:57,722 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] offset <= 2147483645 [2024-01-29 14:11:57,722 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] ((-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 14:11:57,722 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] offset <= 2147483645 [2024-01-29 14:11:57,722 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] i <= 2147483646 [2024-01-29 14:11:57,722 INFO L98 nessWitnessExtractor]: Location invariant before [L710-L710] offset <= 2147483645 [2024-01-29 14:11:57,722 INFO L98 nessWitnessExtractor]: Location invariant before [L710-L710] i <= 2147483646 [2024-01-29 14:11:57,722 INFO L98 nessWitnessExtractor]: Location invariant before [L710-L710] e == 0 [2024-01-29 14:11:57,723 INFO L98 nessWitnessExtractor]: Location invariant before [L710-L710] ((-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 14:11:57,723 INFO L98 nessWitnessExtractor]: Location invariant before [L716-L716] e == 0 [2024-01-29 14:11:57,723 INFO L98 nessWitnessExtractor]: Location invariant before [L716-L716] ((-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 14:11:57,723 INFO L98 nessWitnessExtractor]: Location invariant before [L716-L716] offset <= 2147483645 [2024-01-29 14:11:57,723 INFO L98 nessWitnessExtractor]: Location invariant before [L716-L716] i <= 2147483646 [2024-01-29 14:11:57,723 INFO L98 nessWitnessExtractor]: Location invariant before [L722-L722] (unsigned long )arg == 0UL [2024-01-29 14:11:57,723 INFO L98 nessWitnessExtractor]: Location invariant before [L706-L706] i <= 2147483646 [2024-01-29 14:11:57,723 INFO L98 nessWitnessExtractor]: Location invariant before [L706-L706] offset <= 2147483645 [2024-01-29 14:11:57,723 INFO L98 nessWitnessExtractor]: Location invariant before [L706-L706] (((-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 14:11:57,723 INFO L98 nessWitnessExtractor]: Location invariant after [L695-L699] (int )m == 0 [2024-01-29 14:11:57,723 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] offset <= 2147483645 [2024-01-29 14:11:57,723 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] i <= 2147483646 [2024-01-29 14:11:57,723 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] ((-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 14:11:57,724 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] e == 0 [2024-01-29 14:11:57,724 INFO L98 nessWitnessExtractor]: Location invariant before [L713-L713] i <= 2147483646 [2024-01-29 14:11:57,725 INFO L98 nessWitnessExtractor]: Location invariant before [L713-L713] ((-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 14:11:57,727 INFO L98 nessWitnessExtractor]: Location invariant before [L713-L713] e == 0 [2024-01-29 14:11:57,728 INFO L98 nessWitnessExtractor]: Location invariant before [L713-L713] offset <= 2147483645 [2024-01-29 14:11:57,728 INFO L98 nessWitnessExtractor]: Location invariant after [L690-L694] (int )m == 1 [2024-01-29 14:11:57,728 INFO L98 nessWitnessExtractor]: Location invariant before [L709-L711] offset <= 2147483645 [2024-01-29 14:11:57,728 INFO L98 nessWitnessExtractor]: Location invariant before [L709-L711] ((-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 14:11:57,729 INFO L98 nessWitnessExtractor]: Location invariant before [L709-L711] i <= 2147483646 [2024-01-29 14:11:57,729 INFO L98 nessWitnessExtractor]: Location invariant before [L709-L711] e == 0 [2024-01-29 14:11:57,768 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-29 14:11:57,994 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 14:11:58,008 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 14:11:58,016 INFO L202 MainTranslator]: Completed pre-run [2024-01-29 14:11:58,052 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 14:11:58,052 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 14:11:58,086 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 14:11:58,090 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 14:11:58,098 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 14:11:58,106 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 14:11:58,145 INFO L206 MainTranslator]: Completed translation [2024-01-29 14:11:58,145 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:11:58 WrapperNode [2024-01-29 14:11:58,145 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-29 14:11:58,146 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-29 14:11:58,146 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-29 14:11:58,146 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-29 14:11:58,151 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:11:58" (1/1) ... [2024-01-29 14:11:58,160 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:11:58" (1/1) ... [2024-01-29 14:11:58,183 INFO L138 Inliner]: procedures = 171, calls = 27, calls flagged for inlining = 10, calls inlined = 12, statements flattened = 146 [2024-01-29 14:11:58,184 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-29 14:11:58,184 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-29 14:11:58,184 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-29 14:11:58,184 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-29 14:11:58,193 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:11:58" (1/1) ... [2024-01-29 14:11:58,193 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:11:58" (1/1) ... [2024-01-29 14:11:58,198 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:11:58" (1/1) ... [2024-01-29 14:11:58,211 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 14:11:58,211 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:11:58" (1/1) ... [2024-01-29 14:11:58,211 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:11:58" (1/1) ... [2024-01-29 14:11:58,225 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:11:58" (1/1) ... [2024-01-29 14:11:58,229 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:11:58" (1/1) ... [2024-01-29 14:11:58,231 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:11:58" (1/1) ... [2024-01-29 14:11:58,232 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:11:58" (1/1) ... [2024-01-29 14:11:58,249 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-29 14:11:58,250 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-29 14:11:58,250 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-29 14:11:58,251 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-29 14:11:58,251 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:11:58" (1/1) ... [2024-01-29 14:11:58,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 14:11:58,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 14:11:58,305 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-01-29 14:11:58,328 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-01-29 14:11:58,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-29 14:11:58,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-29 14:11:58,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-29 14:11:58,343 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-01-29 14:11:58,343 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-01-29 14:11:58,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-29 14:11:58,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-29 14:11:58,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-29 14:11:58,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-29 14:11:58,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-29 14:11:58,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-29 14:11:58,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-29 14:11:58,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-29 14:11:58,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-29 14:11:58,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-29 14:11:58,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-29 14:11:58,347 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-29 14:11:58,475 INFO L244 CfgBuilder]: Building ICFG [2024-01-29 14:11:58,477 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-29 14:11:58,824 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-29 14:11:58,825 INFO L293 CfgBuilder]: Performing block encoding [2024-01-29 14:11:58,935 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-29 14:11:58,936 INFO L320 CfgBuilder]: Removed 3 assume(true) statements. [2024-01-29 14:11:58,936 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 02:11:58 BoogieIcfgContainer [2024-01-29 14:11:58,936 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-29 14:11:58,937 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-29 14:11:58,937 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-29 14:11:58,940 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-29 14:11:58,940 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:11:56" (1/4) ... [2024-01-29 14:11:58,940 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@713d1b50 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 02:11:58, skipping insertion in model container [2024-01-29 14:11:58,941 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.01 02:11:57" (2/4) ... [2024-01-29 14:11:58,941 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@713d1b50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 02:11:58, skipping insertion in model container [2024-01-29 14:11:58,941 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:11:58" (3/4) ... [2024-01-29 14:11:58,941 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@713d1b50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 02:11:58, skipping insertion in model container [2024-01-29 14:11:58,941 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 02:11:58" (4/4) ... [2024-01-29 14:11:58,942 INFO L112 eAbstractionObserver]: Analyzing ICFG 09_fmaxsym.i [2024-01-29 14:11:58,955 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-29 14:11:58,955 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2024-01-29 14:11:58,955 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-29 14:11:59,005 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-29 14:11:59,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 107 places, 108 transitions, 220 flow [2024-01-29 14:11:59,055 INFO L124 PetriNetUnfolderBase]: 4/110 cut-off events. [2024-01-29 14:11:59,056 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 14:11:59,058 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 14:11:59,058 INFO L82 GeneralOperation]: Start removeDead. Operand has 107 places, 108 transitions, 220 flow [2024-01-29 14:11:59,061 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 107 places, 108 transitions, 220 flow [2024-01-29 14:11:59,067 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 14:11:59,072 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;@30e7f9d8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 14:11:59,073 INFO L358 AbstractCegarLoop]: Starting to check reachability of 89 error locations. [2024-01-29 14:11:59,075 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 14:11:59,076 INFO L124 PetriNetUnfolderBase]: 1/8 cut-off events. [2024-01-29 14:11:59,076 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 14:11:59,076 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:11:59,076 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-29 14:11:59,077 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 86 more)] === [2024-01-29 14:11:59,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:11:59,081 INFO L85 PathProgramCache]: Analyzing trace with hash -401718454, now seen corresponding path program 1 times [2024-01-29 14:11:59,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:11:59,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557901426] [2024-01-29 14:11:59,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:11:59,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:11:59,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:11:59,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:11:59,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:11:59,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557901426] [2024-01-29 14:11:59,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557901426] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:11:59,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:11:59,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 14:11:59,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581917066] [2024-01-29 14:11:59,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:11:59,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:11:59,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:11:59,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:11:59,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:11:59,379 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 108 [2024-01-29 14:11:59,383 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 14:11:59,383 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:11:59,384 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 108 [2024-01-29 14:11:59,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:11:59,488 INFO L124 PetriNetUnfolderBase]: 29/314 cut-off events. [2024-01-29 14:11:59,489 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 14:11:59,491 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 14:11:59,493 INFO L140 encePairwiseOnDemand]: 103/108 looper letters, 17 selfloop transitions, 2 changer transitions 0/107 dead transitions. [2024-01-29 14:11:59,494 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 107 transitions, 256 flow [2024-01-29 14:11:59,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:11:59,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:11:59,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2024-01-29 14:11:59,516 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8827160493827161 [2024-01-29 14:11:59,517 INFO L175 Difference]: Start difference. First operand has 107 places, 108 transitions, 220 flow. Second operand 3 states and 286 transitions. [2024-01-29 14:11:59,518 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 107 transitions, 256 flow [2024-01-29 14:11:59,520 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 14:11:59,526 INFO L231 Difference]: Finished difference. Result has 109 places, 107 transitions, 228 flow [2024-01-29 14:11:59,528 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 14:11:59,532 INFO L281 CegarLoopForPetriNet]: 107 programPoint places, 2 predicate places. [2024-01-29 14:11:59,532 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 107 transitions, 228 flow [2024-01-29 14:11:59,532 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 14:11:59,532 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:11:59,532 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:11:59,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-29 14:11:59,534 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 86 more)] === [2024-01-29 14:11:59,536 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:11:59,536 INFO L85 PathProgramCache]: Analyzing trace with hash 405421874, now seen corresponding path program 1 times [2024-01-29 14:11:59,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:11:59,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095789412] [2024-01-29 14:11:59,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:11:59,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:11:59,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:11:59,624 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 14:11:59,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:11:59,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095789412] [2024-01-29 14:11:59,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095789412] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-29 14:11:59,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [670922062] [2024-01-29 14:11:59,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:11:59,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-29 14:11:59,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 14:11:59,640 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 14:11:59,661 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 14:11:59,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:11:59,718 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 3 conjunts are in the unsatisfiable core [2024-01-29 14:11:59,721 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-29 14:11:59,755 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 14:11:59,755 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-29 14:11:59,771 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 14:11:59,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [670922062] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-29 14:11:59,772 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-29 14:11:59,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-01-29 14:11:59,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006136128] [2024-01-29 14:11:59,773 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-29 14:11:59,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-01-29 14:11:59,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:11:59,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-01-29 14:11:59,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-01-29 14:11:59,776 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 108 [2024-01-29 14:11:59,778 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 14:11:59,778 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:11:59,778 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 108 [2024-01-29 14:11:59,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:11:59,901 INFO L124 PetriNetUnfolderBase]: 29/317 cut-off events. [2024-01-29 14:11:59,901 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 14:11:59,904 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 14:11:59,906 INFO L140 encePairwiseOnDemand]: 105/108 looper letters, 17 selfloop transitions, 5 changer transitions 0/110 dead transitions. [2024-01-29 14:11:59,906 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 110 transitions, 284 flow [2024-01-29 14:11:59,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-01-29 14:11:59,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-01-29 14:11:59,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 553 transitions. [2024-01-29 14:11:59,910 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8533950617283951 [2024-01-29 14:11:59,911 INFO L175 Difference]: Start difference. First operand has 109 places, 107 transitions, 228 flow. Second operand 6 states and 553 transitions. [2024-01-29 14:11:59,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 110 transitions, 284 flow [2024-01-29 14:11:59,912 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 14:11:59,914 INFO L231 Difference]: Finished difference. Result has 116 places, 110 transitions, 260 flow [2024-01-29 14:11:59,914 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 14:11:59,915 INFO L281 CegarLoopForPetriNet]: 107 programPoint places, 9 predicate places. [2024-01-29 14:11:59,915 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 110 transitions, 260 flow [2024-01-29 14:11:59,916 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 14:11:59,916 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:11:59,916 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1] [2024-01-29 14:11:59,930 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 14:12:00,127 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 14:12:00,128 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 86 more)] === [2024-01-29 14:12:00,129 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:12:00,129 INFO L85 PathProgramCache]: Analyzing trace with hash 220331338, now seen corresponding path program 2 times [2024-01-29 14:12:00,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:12:00,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631029243] [2024-01-29 14:12:00,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:12:00,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:12:00,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:12:00,256 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 14:12:00,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:12:00,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631029243] [2024-01-29 14:12:00,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631029243] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-29 14:12:00,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [952863378] [2024-01-29 14:12:00,257 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-01-29 14:12:00,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-29 14:12:00,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 14:12:00,258 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 14:12:00,275 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 14:12:00,346 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-01-29 14:12:00,346 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-01-29 14:12:00,347 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 9 conjunts are in the unsatisfiable core [2024-01-29 14:12:00,348 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-29 14:12:00,403 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 14:12:00,403 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-01-29 14:12:00,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [952863378] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:12:00,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-01-29 14:12:00,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2024-01-29 14:12:00,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197616279] [2024-01-29 14:12:00,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:12:00,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:12:00,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:12:00,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:12:00,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-01-29 14:12:00,412 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 108 [2024-01-29 14:12:00,413 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 110 transitions, 260 flow. Second operand has 4 states, 4 states have (on average 84.75) internal successors, (339), 4 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:12:00,413 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:12:00,413 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 108 [2024-01-29 14:12:00,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:12:00,505 INFO L124 PetriNetUnfolderBase]: 31/321 cut-off events. [2024-01-29 14:12:00,505 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-29 14:12:00,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 423 conditions, 321 events. 31/321 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1218 event pairs, 0 based on Foata normal form. 0/204 useless extension candidates. Maximal degree in co-relation 389. Up to 63 conditions per place. [2024-01-29 14:12:00,507 INFO L140 encePairwiseOnDemand]: 102/108 looper letters, 24 selfloop transitions, 2 changer transitions 0/109 dead transitions. [2024-01-29 14:12:00,507 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 109 transitions, 310 flow [2024-01-29 14:12:00,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 14:12:00,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 14:12:00,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 358 transitions. [2024-01-29 14:12:00,509 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8287037037037037 [2024-01-29 14:12:00,510 INFO L175 Difference]: Start difference. First operand has 116 places, 110 transitions, 260 flow. Second operand 4 states and 358 transitions. [2024-01-29 14:12:00,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 109 transitions, 310 flow [2024-01-29 14:12:00,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 109 transitions, 296 flow, removed 6 selfloop flow, removed 1 redundant places. [2024-01-29 14:12:00,514 INFO L231 Difference]: Finished difference. Result has 114 places, 106 transitions, 242 flow [2024-01-29 14:12:00,515 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=242, PETRI_PLACES=114, PETRI_TRANSITIONS=106} [2024-01-29 14:12:00,518 INFO L281 CegarLoopForPetriNet]: 107 programPoint places, 7 predicate places. [2024-01-29 14:12:00,518 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 106 transitions, 242 flow [2024-01-29 14:12:00,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.75) internal successors, (339), 4 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:12:00,519 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:12:00,519 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 2, 1, 1, 1, 1, 1] [2024-01-29 14:12:00,532 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 14:12:00,729 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 14:12:00,730 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 14:12:00,730 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:12:00,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1759705064, now seen corresponding path program 1 times [2024-01-29 14:12:00,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:12:00,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240166234] [2024-01-29 14:12:00,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:12:00,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:12:00,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:12:00,846 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 14:12:00,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:12:00,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240166234] [2024-01-29 14:12:00,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240166234] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-29 14:12:00,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1581696867] [2024-01-29 14:12:00,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:12:00,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-29 14:12:00,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 14:12:00,848 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 14:12:00,849 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 14:12:00,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:12:00,914 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 6 conjunts are in the unsatisfiable core [2024-01-29 14:12:00,915 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-29 14:12:00,935 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 14:12:00,935 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-29 14:12:00,967 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 14:12:00,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1581696867] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-29 14:12:00,968 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-29 14:12:00,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 8 [2024-01-29 14:12:00,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815025399] [2024-01-29 14:12:00,969 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-29 14:12:00,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-01-29 14:12:00,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:12:00,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-01-29 14:12:00,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2024-01-29 14:12:00,973 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 108 [2024-01-29 14:12:00,974 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 106 transitions, 242 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 14:12:00,974 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:12:00,974 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 108 [2024-01-29 14:12:00,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:12:01,047 INFO L124 PetriNetUnfolderBase]: 29/313 cut-off events. [2024-01-29 14:12:01,048 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-01-29 14:12:01,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 412 conditions, 313 events. 29/313 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1195 event pairs, 22 based on Foata normal form. 2/200 useless extension candidates. Maximal degree in co-relation 376. Up to 66 conditions per place. [2024-01-29 14:12:01,050 INFO L140 encePairwiseOnDemand]: 105/108 looper letters, 17 selfloop transitions, 7 changer transitions 0/108 dead transitions. [2024-01-29 14:12:01,050 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 108 transitions, 302 flow [2024-01-29 14:12:01,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-01-29 14:12:01,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-01-29 14:12:01,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 730 transitions. [2024-01-29 14:12:01,052 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8449074074074074 [2024-01-29 14:12:01,052 INFO L175 Difference]: Start difference. First operand has 114 places, 106 transitions, 242 flow. Second operand 8 states and 730 transitions. [2024-01-29 14:12:01,053 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 108 transitions, 302 flow [2024-01-29 14:12:01,054 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 108 transitions, 299 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:12:01,056 INFO L231 Difference]: Finished difference. Result has 121 places, 108 transitions, 275 flow [2024-01-29 14:12:01,056 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=239, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=275, PETRI_PLACES=121, PETRI_TRANSITIONS=108} [2024-01-29 14:12:01,058 INFO L281 CegarLoopForPetriNet]: 107 programPoint places, 14 predicate places. [2024-01-29 14:12:01,058 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 108 transitions, 275 flow [2024-01-29 14:12:01,059 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 14:12:01,059 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:12:01,059 INFO L208 CegarLoopForPetriNet]: trace histogram [6, 2, 1, 1, 1, 1, 1] [2024-01-29 14:12:01,083 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 14:12:01,270 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 14:12:01,271 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 14:12:01,271 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:12:01,271 INFO L85 PathProgramCache]: Analyzing trace with hash 952347416, now seen corresponding path program 2 times [2024-01-29 14:12:01,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:12:01,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927732970] [2024-01-29 14:12:01,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:12:01,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:12:01,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 14:12:01,287 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-29 14:12:01,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 14:12:01,309 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-29 14:12:01,310 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-29 14:12:01,311 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (88 of 89 remaining) [2024-01-29 14:12:01,312 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (87 of 89 remaining) [2024-01-29 14:12:01,312 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (86 of 89 remaining) [2024-01-29 14:12:01,312 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (85 of 89 remaining) [2024-01-29 14:12:01,313 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (84 of 89 remaining) [2024-01-29 14:12:01,313 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (83 of 89 remaining) [2024-01-29 14:12:01,313 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (82 of 89 remaining) [2024-01-29 14:12:01,313 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (81 of 89 remaining) [2024-01-29 14:12:01,313 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err43ASSERT_VIOLATIONWITNESS_INVARIANT (80 of 89 remaining) [2024-01-29 14:12:01,313 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (79 of 89 remaining) [2024-01-29 14:12:01,313 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (78 of 89 remaining) [2024-01-29 14:12:01,314 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (77 of 89 remaining) [2024-01-29 14:12:01,314 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (76 of 89 remaining) [2024-01-29 14:12:01,314 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (75 of 89 remaining) [2024-01-29 14:12:01,314 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (74 of 89 remaining) [2024-01-29 14:12:01,314 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (73 of 89 remaining) [2024-01-29 14:12:01,314 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (72 of 89 remaining) [2024-01-29 14:12:01,315 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (71 of 89 remaining) [2024-01-29 14:12:01,315 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (70 of 89 remaining) [2024-01-29 14:12:01,315 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (69 of 89 remaining) [2024-01-29 14:12:01,315 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (68 of 89 remaining) [2024-01-29 14:12:01,315 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (67 of 89 remaining) [2024-01-29 14:12:01,315 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (66 of 89 remaining) [2024-01-29 14:12:01,316 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (65 of 89 remaining) [2024-01-29 14:12:01,316 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (64 of 89 remaining) [2024-01-29 14:12:01,316 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (63 of 89 remaining) [2024-01-29 14:12:01,316 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (62 of 89 remaining) [2024-01-29 14:12:01,316 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (61 of 89 remaining) [2024-01-29 14:12:01,316 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONWITNESS_INVARIANT (60 of 89 remaining) [2024-01-29 14:12:01,316 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONWITNESS_INVARIANT (59 of 89 remaining) [2024-01-29 14:12:01,317 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 89 remaining) [2024-01-29 14:12:01,317 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 89 remaining) [2024-01-29 14:12:01,317 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 89 remaining) [2024-01-29 14:12:01,317 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 89 remaining) [2024-01-29 14:12:01,317 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err32ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 89 remaining) [2024-01-29 14:12:01,317 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err33ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 89 remaining) [2024-01-29 14:12:01,318 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err34ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 89 remaining) [2024-01-29 14:12:01,318 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err35ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 89 remaining) [2024-01-29 14:12:01,318 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err36ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 89 remaining) [2024-01-29 14:12:01,318 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err37ASSERT_VIOLATIONERROR_FUNCTION (49 of 89 remaining) [2024-01-29 14:12:01,318 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err38ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 89 remaining) [2024-01-29 14:12:01,318 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err39ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 89 remaining) [2024-01-29 14:12:01,319 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err40ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 89 remaining) [2024-01-29 14:12:01,319 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err41ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 89 remaining) [2024-01-29 14:12:01,319 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err42ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 89 remaining) [2024-01-29 14:12:01,319 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 89 remaining) [2024-01-29 14:12:01,319 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 89 remaining) [2024-01-29 14:12:01,319 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 89 remaining) [2024-01-29 14:12:01,319 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 89 remaining) [2024-01-29 14:12:01,320 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 89 remaining) [2024-01-29 14:12:01,320 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 89 remaining) [2024-01-29 14:12:01,320 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 89 remaining) [2024-01-29 14:12:01,320 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err43ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 89 remaining) [2024-01-29 14:12:01,320 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 89 remaining) [2024-01-29 14:12:01,320 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 89 remaining) [2024-01-29 14:12:01,321 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 89 remaining) [2024-01-29 14:12:01,321 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 89 remaining) [2024-01-29 14:12:01,321 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 89 remaining) [2024-01-29 14:12:01,321 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 89 remaining) [2024-01-29 14:12:01,321 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 89 remaining) [2024-01-29 14:12:01,321 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 89 remaining) [2024-01-29 14:12:01,321 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 89 remaining) [2024-01-29 14:12:01,322 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 89 remaining) [2024-01-29 14:12:01,322 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 89 remaining) [2024-01-29 14:12:01,322 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 89 remaining) [2024-01-29 14:12:01,322 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 89 remaining) [2024-01-29 14:12:01,322 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 89 remaining) [2024-01-29 14:12:01,322 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 89 remaining) [2024-01-29 14:12:01,322 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 89 remaining) [2024-01-29 14:12:01,323 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 89 remaining) [2024-01-29 14:12:01,323 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 89 remaining) [2024-01-29 14:12:01,323 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 89 remaining) [2024-01-29 14:12:01,323 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 89 remaining) [2024-01-29 14:12:01,323 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 89 remaining) [2024-01-29 14:12:01,323 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 89 remaining) [2024-01-29 14:12:01,323 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 89 remaining) [2024-01-29 14:12:01,324 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 89 remaining) [2024-01-29 14:12:01,324 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 89 remaining) [2024-01-29 14:12:01,324 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err32ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 89 remaining) [2024-01-29 14:12:01,324 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err33ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 89 remaining) [2024-01-29 14:12:01,324 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err34ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 89 remaining) [2024-01-29 14:12:01,324 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err35ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 89 remaining) [2024-01-29 14:12:01,325 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err36ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 89 remaining) [2024-01-29 14:12:01,325 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err37ASSERT_VIOLATIONERROR_FUNCTION (5 of 89 remaining) [2024-01-29 14:12:01,325 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err38ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 89 remaining) [2024-01-29 14:12:01,325 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err39ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 89 remaining) [2024-01-29 14:12:01,325 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err40ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 89 remaining) [2024-01-29 14:12:01,325 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err41ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 89 remaining) [2024-01-29 14:12:01,325 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err42ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 89 remaining) [2024-01-29 14:12:01,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-29 14:12:01,326 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1] [2024-01-29 14:12:01,328 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-01-29 14:12:01,328 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-01-29 14:12:01,381 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-29 14:12:01,386 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 207 places, 209 transitions, 428 flow [2024-01-29 14:12:01,405 INFO L124 PetriNetUnfolderBase]: 7/214 cut-off events. [2024-01-29 14:12:01,405 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-29 14:12:01,407 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 14:12:01,407 INFO L82 GeneralOperation]: Start removeDead. Operand has 207 places, 209 transitions, 428 flow [2024-01-29 14:12:01,411 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 207 places, 209 transitions, 428 flow [2024-01-29 14:12:01,412 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 14:12:01,414 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;@30e7f9d8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 14:12:01,414 INFO L358 AbstractCegarLoop]: Starting to check reachability of 133 error locations. [2024-01-29 14:12:01,416 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 14:12:01,416 INFO L124 PetriNetUnfolderBase]: 1/8 cut-off events. [2024-01-29 14:12:01,416 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 14:12:01,416 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:12:01,417 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-29 14:12:01,417 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 130 more)] === [2024-01-29 14:12:01,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:12:01,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1486355854, now seen corresponding path program 1 times [2024-01-29 14:12:01,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:12:01,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141626071] [2024-01-29 14:12:01,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:12:01,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:12:01,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:12:01,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:12:01,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:12:01,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141626071] [2024-01-29 14:12:01,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141626071] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:12:01,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:12:01,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 14:12:01,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046577236] [2024-01-29 14:12:01,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:12:01,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:12:01,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:12:01,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:12:01,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:12:01,457 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 209 [2024-01-29 14:12:01,462 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 14:12:01,463 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:12:01,463 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 209 [2024-01-29 14:12:01,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:12:01,917 INFO L124 PetriNetUnfolderBase]: 927/5292 cut-off events. [2024-01-29 14:12:01,917 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-01-29 14:12:01,928 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 14:12:01,958 INFO L140 encePairwiseOnDemand]: 203/209 looper letters, 30 selfloop transitions, 2 changer transitions 0/207 dead transitions. [2024-01-29 14:12:01,958 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 207 transitions, 488 flow [2024-01-29 14:12:01,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:12:01,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:12:01,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 561 transitions. [2024-01-29 14:12:01,960 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8947368421052632 [2024-01-29 14:12:01,960 INFO L175 Difference]: Start difference. First operand has 207 places, 209 transitions, 428 flow. Second operand 3 states and 561 transitions. [2024-01-29 14:12:01,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 207 transitions, 488 flow [2024-01-29 14:12:01,961 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 14:12:01,963 INFO L231 Difference]: Finished difference. Result has 209 places, 207 transitions, 434 flow [2024-01-29 14:12:01,964 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 14:12:01,965 INFO L281 CegarLoopForPetriNet]: 207 programPoint places, 2 predicate places. [2024-01-29 14:12:01,966 INFO L495 AbstractCegarLoop]: Abstraction has has 209 places, 207 transitions, 434 flow [2024-01-29 14:12:01,966 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 14:12:01,966 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:12:01,966 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:12:01,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-29 14:12:01,967 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 130 more)] === [2024-01-29 14:12:01,967 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:12:01,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1196795513, now seen corresponding path program 1 times [2024-01-29 14:12:01,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:12:01,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558151197] [2024-01-29 14:12:01,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:12:01,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:12:01,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:12:01,999 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 14:12:01,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:12:01,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558151197] [2024-01-29 14:12:01,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558151197] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-29 14:12:01,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1835154799] [2024-01-29 14:12:01,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:12:02,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-29 14:12:02,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 14:12:02,001 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 14:12:02,028 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 14:12:02,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:12:02,055 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 3 conjunts are in the unsatisfiable core [2024-01-29 14:12:02,055 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-29 14:12:02,061 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 14:12:02,061 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-29 14:12:02,070 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 14:12:02,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1835154799] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-29 14:12:02,070 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-29 14:12:02,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-01-29 14:12:02,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579347039] [2024-01-29 14:12:02,071 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-29 14:12:02,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-01-29 14:12:02,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:12:02,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-01-29 14:12:02,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-01-29 14:12:02,073 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 209 [2024-01-29 14:12:02,074 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 14:12:02,074 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:12:02,074 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 209 [2024-01-29 14:12:02,074 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:12:02,470 INFO L124 PetriNetUnfolderBase]: 927/5295 cut-off events. [2024-01-29 14:12:02,470 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-01-29 14:12:02,481 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 14:12:02,501 INFO L140 encePairwiseOnDemand]: 206/209 looper letters, 30 selfloop transitions, 5 changer transitions 0/210 dead transitions. [2024-01-29 14:12:02,501 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 210 transitions, 516 flow [2024-01-29 14:12:02,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-01-29 14:12:02,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-01-29 14:12:02,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1088 transitions. [2024-01-29 14:12:02,504 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8676236044657097 [2024-01-29 14:12:02,504 INFO L175 Difference]: Start difference. First operand has 209 places, 207 transitions, 434 flow. Second operand 6 states and 1088 transitions. [2024-01-29 14:12:02,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 210 transitions, 516 flow [2024-01-29 14:12:02,505 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 14:12:02,507 INFO L231 Difference]: Finished difference. Result has 216 places, 210 transitions, 466 flow [2024-01-29 14:12:02,507 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 14:12:02,508 INFO L281 CegarLoopForPetriNet]: 207 programPoint places, 9 predicate places. [2024-01-29 14:12:02,508 INFO L495 AbstractCegarLoop]: Abstraction has has 216 places, 210 transitions, 466 flow [2024-01-29 14:12:02,508 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 14:12:02,509 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:12:02,509 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1] [2024-01-29 14:12:02,540 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-01-29 14:12:02,718 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 14:12:02,719 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 130 more)] === [2024-01-29 14:12:02,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:12:02,719 INFO L85 PathProgramCache]: Analyzing trace with hash -129256498, now seen corresponding path program 2 times [2024-01-29 14:12:02,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:12:02,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091864125] [2024-01-29 14:12:02,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:12:02,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:12:02,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:12:02,784 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 14:12:02,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:12:02,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091864125] [2024-01-29 14:12:02,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091864125] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-29 14:12:02,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [856626863] [2024-01-29 14:12:02,785 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-01-29 14:12:02,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-29 14:12:02,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 14:12:02,787 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 14:12:02,814 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 14:12:02,845 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-01-29 14:12:02,845 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-01-29 14:12:02,846 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 9 conjunts are in the unsatisfiable core [2024-01-29 14:12:02,847 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-29 14:12:02,865 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 14:12:02,865 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-01-29 14:12:02,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [856626863] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:12:02,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-01-29 14:12:02,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2024-01-29 14:12:02,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321721332] [2024-01-29 14:12:02,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:12:02,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:12:02,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:12:02,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:12:02,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-01-29 14:12:02,876 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 209 [2024-01-29 14:12:02,877 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 210 transitions, 466 flow. Second operand has 4 states, 4 states have (on average 171.75) internal successors, (687), 4 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:12:02,877 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:12:02,877 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 209 [2024-01-29 14:12:02,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:12:03,280 INFO L124 PetriNetUnfolderBase]: 988/5848 cut-off events. [2024-01-29 14:12:03,280 INFO L125 PetriNetUnfolderBase]: For 42/42 co-relation queries the response was YES. [2024-01-29 14:12:03,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7400 conditions, 5848 events. 988/5848 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 58038 event pairs, 409 based on Foata normal form. 0/3731 useless extension candidates. Maximal degree in co-relation 7365. Up to 1412 conditions per place. [2024-01-29 14:12:03,318 INFO L140 encePairwiseOnDemand]: 203/209 looper letters, 50 selfloop transitions, 2 changer transitions 0/222 dead transitions. [2024-01-29 14:12:03,318 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 222 transitions, 599 flow [2024-01-29 14:12:03,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 14:12:03,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 14:12:03,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 732 transitions. [2024-01-29 14:12:03,320 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8755980861244019 [2024-01-29 14:12:03,320 INFO L175 Difference]: Start difference. First operand has 216 places, 210 transitions, 466 flow. Second operand 4 states and 732 transitions. [2024-01-29 14:12:03,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 222 transitions, 599 flow [2024-01-29 14:12:03,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 222 transitions, 585 flow, removed 6 selfloop flow, removed 1 redundant places. [2024-01-29 14:12:03,323 INFO L231 Difference]: Finished difference. Result has 214 places, 206 transitions, 448 flow [2024-01-29 14:12:03,324 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=444, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=204, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=448, PETRI_PLACES=214, PETRI_TRANSITIONS=206} [2024-01-29 14:12:03,324 INFO L281 CegarLoopForPetriNet]: 207 programPoint places, 7 predicate places. [2024-01-29 14:12:03,324 INFO L495 AbstractCegarLoop]: Abstraction has has 214 places, 206 transitions, 448 flow [2024-01-29 14:12:03,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 171.75) internal successors, (687), 4 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:12:03,325 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:12:03,325 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:12:03,351 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-01-29 14:12:03,535 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 14:12:03,536 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 130 more)] === [2024-01-29 14:12:03,536 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:12:03,536 INFO L85 PathProgramCache]: Analyzing trace with hash 288016683, now seen corresponding path program 1 times [2024-01-29 14:12:03,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:12:03,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639265980] [2024-01-29 14:12:03,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:12:03,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:12:03,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:12:03,584 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 14:12:03,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:12:03,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639265980] [2024-01-29 14:12:03,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639265980] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-29 14:12:03,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1022070272] [2024-01-29 14:12:03,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:12:03,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-29 14:12:03,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 14:12:03,586 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 14:12:03,587 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 14:12:03,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:12:03,645 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 6 conjunts are in the unsatisfiable core [2024-01-29 14:12:03,646 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-29 14:12:03,655 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 14:12:03,656 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-29 14:12:03,679 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 14:12:03,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1022070272] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-29 14:12:03,680 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-29 14:12:03,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 8 [2024-01-29 14:12:03,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844507927] [2024-01-29 14:12:03,680 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-29 14:12:03,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-01-29 14:12:03,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:12:03,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-01-29 14:12:03,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2024-01-29 14:12:03,682 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 209 [2024-01-29 14:12:03,683 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 206 transitions, 448 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 14:12:03,684 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:12:03,684 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 209 [2024-01-29 14:12:03,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:12:04,063 INFO L124 PetriNetUnfolderBase]: 927/5282 cut-off events. [2024-01-29 14:12:04,064 INFO L125 PetriNetUnfolderBase]: For 53/53 co-relation queries the response was YES. [2024-01-29 14:12:04,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6742 conditions, 5282 events. 927/5282 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 51127 event pairs, 728 based on Foata normal form. 2/3364 useless extension candidates. Maximal degree in co-relation 6705. Up to 1390 conditions per place. [2024-01-29 14:12:04,090 INFO L140 encePairwiseOnDemand]: 206/209 looper letters, 30 selfloop transitions, 7 changer transitions 0/208 dead transitions. [2024-01-29 14:12:04,090 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 208 transitions, 534 flow [2024-01-29 14:12:04,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-01-29 14:12:04,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-01-29 14:12:04,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1439 transitions. [2024-01-29 14:12:04,093 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8606459330143541 [2024-01-29 14:12:04,093 INFO L175 Difference]: Start difference. First operand has 214 places, 206 transitions, 448 flow. Second operand 8 states and 1439 transitions. [2024-01-29 14:12:04,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 208 transitions, 534 flow [2024-01-29 14:12:04,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 208 transitions, 531 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:12:04,096 INFO L231 Difference]: Finished difference. Result has 221 places, 208 transitions, 481 flow [2024-01-29 14:12:04,096 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=445, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=481, PETRI_PLACES=221, PETRI_TRANSITIONS=208} [2024-01-29 14:12:04,097 INFO L281 CegarLoopForPetriNet]: 207 programPoint places, 14 predicate places. [2024-01-29 14:12:04,097 INFO L495 AbstractCegarLoop]: Abstraction has has 221 places, 208 transitions, 481 flow [2024-01-29 14:12:04,098 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 14:12:04,098 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:12:04,098 INFO L208 CegarLoopForPetriNet]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:12:04,108 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-01-29 14:12:04,309 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 14:12:04,309 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 130 more)] === [2024-01-29 14:12:04,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:12:04,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1278099957, now seen corresponding path program 2 times [2024-01-29 14:12:04,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:12:04,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121882794] [2024-01-29 14:12:04,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:12:04,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:12:04,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 14:12:04,321 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-29 14:12:04,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 14:12:04,332 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-29 14:12:04,332 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-29 14:12:04,332 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (132 of 133 remaining) [2024-01-29 14:12:04,332 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (131 of 133 remaining) [2024-01-29 14:12:04,332 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (130 of 133 remaining) [2024-01-29 14:12:04,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (129 of 133 remaining) [2024-01-29 14:12:04,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (128 of 133 remaining) [2024-01-29 14:12:04,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (127 of 133 remaining) [2024-01-29 14:12:04,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (126 of 133 remaining) [2024-01-29 14:12:04,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (125 of 133 remaining) [2024-01-29 14:12:04,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err43ASSERT_VIOLATIONWITNESS_INVARIANT (124 of 133 remaining) [2024-01-29 14:12:04,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (123 of 133 remaining) [2024-01-29 14:12:04,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (122 of 133 remaining) [2024-01-29 14:12:04,334 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (121 of 133 remaining) [2024-01-29 14:12:04,334 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (120 of 133 remaining) [2024-01-29 14:12:04,334 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (119 of 133 remaining) [2024-01-29 14:12:04,334 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (118 of 133 remaining) [2024-01-29 14:12:04,334 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (117 of 133 remaining) [2024-01-29 14:12:04,334 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (116 of 133 remaining) [2024-01-29 14:12:04,334 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (115 of 133 remaining) [2024-01-29 14:12:04,334 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (114 of 133 remaining) [2024-01-29 14:12:04,335 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (113 of 133 remaining) [2024-01-29 14:12:04,335 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (112 of 133 remaining) [2024-01-29 14:12:04,335 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (111 of 133 remaining) [2024-01-29 14:12:04,335 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (110 of 133 remaining) [2024-01-29 14:12:04,335 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (109 of 133 remaining) [2024-01-29 14:12:04,335 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (108 of 133 remaining) [2024-01-29 14:12:04,335 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (107 of 133 remaining) [2024-01-29 14:12:04,335 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (106 of 133 remaining) [2024-01-29 14:12:04,336 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (105 of 133 remaining) [2024-01-29 14:12:04,336 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONWITNESS_INVARIANT (104 of 133 remaining) [2024-01-29 14:12:04,336 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONWITNESS_INVARIANT (103 of 133 remaining) [2024-01-29 14:12:04,336 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONWITNESS_INVARIANT (102 of 133 remaining) [2024-01-29 14:12:04,336 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONWITNESS_INVARIANT (101 of 133 remaining) [2024-01-29 14:12:04,336 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30ASSERT_VIOLATIONWITNESS_INVARIANT (100 of 133 remaining) [2024-01-29 14:12:04,336 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31ASSERT_VIOLATIONWITNESS_INVARIANT (99 of 133 remaining) [2024-01-29 14:12:04,336 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err32ASSERT_VIOLATIONWITNESS_INVARIANT (98 of 133 remaining) [2024-01-29 14:12:04,337 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err33ASSERT_VIOLATIONWITNESS_INVARIANT (97 of 133 remaining) [2024-01-29 14:12:04,337 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err34ASSERT_VIOLATIONWITNESS_INVARIANT (96 of 133 remaining) [2024-01-29 14:12:04,337 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err35ASSERT_VIOLATIONWITNESS_INVARIANT (95 of 133 remaining) [2024-01-29 14:12:04,337 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err36ASSERT_VIOLATIONWITNESS_INVARIANT (94 of 133 remaining) [2024-01-29 14:12:04,337 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err37ASSERT_VIOLATIONERROR_FUNCTION (93 of 133 remaining) [2024-01-29 14:12:04,337 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err38ASSERT_VIOLATIONWITNESS_INVARIANT (92 of 133 remaining) [2024-01-29 14:12:04,337 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err39ASSERT_VIOLATIONWITNESS_INVARIANT (91 of 133 remaining) [2024-01-29 14:12:04,337 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err40ASSERT_VIOLATIONWITNESS_INVARIANT (90 of 133 remaining) [2024-01-29 14:12:04,338 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err41ASSERT_VIOLATIONWITNESS_INVARIANT (89 of 133 remaining) [2024-01-29 14:12:04,338 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err42ASSERT_VIOLATIONWITNESS_INVARIANT (88 of 133 remaining) [2024-01-29 14:12:04,338 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (87 of 133 remaining) [2024-01-29 14:12:04,338 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (86 of 133 remaining) [2024-01-29 14:12:04,338 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (85 of 133 remaining) [2024-01-29 14:12:04,338 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (84 of 133 remaining) [2024-01-29 14:12:04,338 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (83 of 133 remaining) [2024-01-29 14:12:04,338 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (82 of 133 remaining) [2024-01-29 14:12:04,339 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (81 of 133 remaining) [2024-01-29 14:12:04,339 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (80 of 133 remaining) [2024-01-29 14:12:04,339 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err43ASSERT_VIOLATIONWITNESS_INVARIANT (79 of 133 remaining) [2024-01-29 14:12:04,339 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (78 of 133 remaining) [2024-01-29 14:12:04,339 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (77 of 133 remaining) [2024-01-29 14:12:04,339 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (76 of 133 remaining) [2024-01-29 14:12:04,339 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (75 of 133 remaining) [2024-01-29 14:12:04,339 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (74 of 133 remaining) [2024-01-29 14:12:04,340 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (73 of 133 remaining) [2024-01-29 14:12:04,340 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (72 of 133 remaining) [2024-01-29 14:12:04,340 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (71 of 133 remaining) [2024-01-29 14:12:04,340 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (70 of 133 remaining) [2024-01-29 14:12:04,340 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (69 of 133 remaining) [2024-01-29 14:12:04,340 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (68 of 133 remaining) [2024-01-29 14:12:04,340 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (67 of 133 remaining) [2024-01-29 14:12:04,340 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (66 of 133 remaining) [2024-01-29 14:12:04,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (65 of 133 remaining) [2024-01-29 14:12:04,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (64 of 133 remaining) [2024-01-29 14:12:04,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (63 of 133 remaining) [2024-01-29 14:12:04,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (62 of 133 remaining) [2024-01-29 14:12:04,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (61 of 133 remaining) [2024-01-29 14:12:04,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (60 of 133 remaining) [2024-01-29 14:12:04,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONWITNESS_INVARIANT (59 of 133 remaining) [2024-01-29 14:12:04,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 133 remaining) [2024-01-29 14:12:04,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 133 remaining) [2024-01-29 14:12:04,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 133 remaining) [2024-01-29 14:12:04,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 133 remaining) [2024-01-29 14:12:04,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 133 remaining) [2024-01-29 14:12:04,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err32ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 133 remaining) [2024-01-29 14:12:04,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err33ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 133 remaining) [2024-01-29 14:12:04,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err34ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 133 remaining) [2024-01-29 14:12:04,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err35ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 133 remaining) [2024-01-29 14:12:04,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err36ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 133 remaining) [2024-01-29 14:12:04,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err37ASSERT_VIOLATIONERROR_FUNCTION (48 of 133 remaining) [2024-01-29 14:12:04,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err38ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 133 remaining) [2024-01-29 14:12:04,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err39ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 133 remaining) [2024-01-29 14:12:04,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err40ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 133 remaining) [2024-01-29 14:12:04,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err41ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 133 remaining) [2024-01-29 14:12:04,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err42ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 133 remaining) [2024-01-29 14:12:04,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 133 remaining) [2024-01-29 14:12:04,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 133 remaining) [2024-01-29 14:12:04,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 133 remaining) [2024-01-29 14:12:04,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 133 remaining) [2024-01-29 14:12:04,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 133 remaining) [2024-01-29 14:12:04,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 133 remaining) [2024-01-29 14:12:04,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err43ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 133 remaining) [2024-01-29 14:12:04,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 133 remaining) [2024-01-29 14:12:04,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 133 remaining) [2024-01-29 14:12:04,345 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 133 remaining) [2024-01-29 14:12:04,345 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 133 remaining) [2024-01-29 14:12:04,345 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 133 remaining) [2024-01-29 14:12:04,345 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 133 remaining) [2024-01-29 14:12:04,345 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 133 remaining) [2024-01-29 14:12:04,345 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 133 remaining) [2024-01-29 14:12:04,345 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 133 remaining) [2024-01-29 14:12:04,345 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 133 remaining) [2024-01-29 14:12:04,346 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 133 remaining) [2024-01-29 14:12:04,346 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 133 remaining) [2024-01-29 14:12:04,346 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 133 remaining) [2024-01-29 14:12:04,346 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 133 remaining) [2024-01-29 14:12:04,346 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 133 remaining) [2024-01-29 14:12:04,346 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 133 remaining) [2024-01-29 14:12:04,346 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 133 remaining) [2024-01-29 14:12:04,346 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 133 remaining) [2024-01-29 14:12:04,347 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 133 remaining) [2024-01-29 14:12:04,347 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 133 remaining) [2024-01-29 14:12:04,347 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 133 remaining) [2024-01-29 14:12:04,347 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 133 remaining) [2024-01-29 14:12:04,347 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 133 remaining) [2024-01-29 14:12:04,347 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 133 remaining) [2024-01-29 14:12:04,347 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 133 remaining) [2024-01-29 14:12:04,347 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err32ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 133 remaining) [2024-01-29 14:12:04,348 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err33ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 133 remaining) [2024-01-29 14:12:04,348 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err34ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 133 remaining) [2024-01-29 14:12:04,348 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err35ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 133 remaining) [2024-01-29 14:12:04,348 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err36ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 133 remaining) [2024-01-29 14:12:04,348 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err37ASSERT_VIOLATIONERROR_FUNCTION (5 of 133 remaining) [2024-01-29 14:12:04,348 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err38ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 133 remaining) [2024-01-29 14:12:04,348 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err39ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 133 remaining) [2024-01-29 14:12:04,348 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err40ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 133 remaining) [2024-01-29 14:12:04,349 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err41ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 133 remaining) [2024-01-29 14:12:04,349 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err42ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 133 remaining) [2024-01-29 14:12:04,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-01-29 14:12:04,349 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1] [2024-01-29 14:12:04,353 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2024-01-29 14:12:04,354 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-29 14:12:04,372 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2024-01-29 14:12:04,379 INFO L503 ceAbstractionStarter]: Automizer considered 43 witness invariants [2024-01-29 14:12:04,379 INFO L504 ceAbstractionStarter]: WitnessConsidered=43 [2024-01-29 14:12:04,380 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.01 02:12:04 BasicIcfg [2024-01-29 14:12:04,380 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-29 14:12:04,381 INFO L158 Benchmark]: Toolchain (without parser) took 6727.95ms. Allocated memory was 199.2MB in the beginning and 375.4MB in the end (delta: 176.2MB). Free memory was 166.1MB in the beginning and 240.6MB in the end (delta: -74.5MB). Peak memory consumption was 101.5MB. Max. memory is 16.1GB. [2024-01-29 14:12:04,381 INFO L158 Benchmark]: Witness Parser took 0.16ms. Allocated memory is still 132.1MB. Free memory is still 95.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 14:12:04,381 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 132.1MB. Free memory is still 102.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 14:12:04,382 INFO L158 Benchmark]: CACSL2BoogieTranslator took 491.77ms. Allocated memory is still 199.2MB. Free memory was 166.1MB in the beginning and 139.0MB in the end (delta: 27.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-01-29 14:12:04,382 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.61ms. Allocated memory is still 199.2MB. Free memory was 139.0MB in the beginning and 136.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-29 14:12:04,382 INFO L158 Benchmark]: Boogie Preprocessor took 65.51ms. Allocated memory is still 199.2MB. Free memory was 136.0MB in the beginning and 133.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-29 14:12:04,382 INFO L158 Benchmark]: RCFGBuilder took 685.88ms. Allocated memory is still 199.2MB. Free memory was 133.4MB in the beginning and 158.8MB in the end (delta: -25.3MB). Peak memory consumption was 40.7MB. Max. memory is 16.1GB. [2024-01-29 14:12:04,383 INFO L158 Benchmark]: TraceAbstraction took 5443.18ms. Allocated memory was 199.2MB in the beginning and 375.4MB in the end (delta: 176.2MB). Free memory was 157.7MB in the beginning and 240.6MB in the end (delta: -82.9MB). Peak memory consumption was 94.3MB. Max. memory is 16.1GB. [2024-01-29 14:12:04,384 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 132.1MB. Free memory is still 95.8MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.12ms. Allocated memory is still 132.1MB. Free memory is still 102.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 491.77ms. Allocated memory is still 199.2MB. Free memory was 166.1MB in the beginning and 139.0MB in the end (delta: 27.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.61ms. Allocated memory is still 199.2MB. Free memory was 139.0MB in the beginning and 136.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.51ms. Allocated memory is still 199.2MB. Free memory was 136.0MB in the beginning and 133.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 685.88ms. Allocated memory is still 199.2MB. Free memory was 133.4MB in the beginning and 158.8MB in the end (delta: -25.3MB). Peak memory consumption was 40.7MB. Max. memory is 16.1GB. * TraceAbstraction took 5443.18ms. Allocated memory was 199.2MB in the beginning and 375.4MB in the end (delta: 176.2MB). Free memory was 157.7MB in the beginning and 240.6MB in the end (delta: -82.9MB). Peak memory consumption was 94.3MB. 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[COMPLEQ,IdentifierExpression[offset],IntegerLiteral[2147483646]]]] 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: 2.3s, OverallIterations: 5, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 36 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 32 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 213 IncrementalHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 0 mSDtfsCounter, 213 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=275occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.5s 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: 3.0s, OverallIterations: 5, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 68 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 63 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 389 IncrementalHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 0 mSDtfsCounter, 389 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=481occurred 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 14:12:04,419 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE