./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 a340643f 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-a340643-m [2024-01-27 14:46:38,387 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-27 14:46:38,451 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-27 14:46:38,455 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-27 14:46:38,456 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-27 14:46:38,483 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-27 14:46:38,484 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-27 14:46:38,485 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-27 14:46:38,485 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-27 14:46:38,490 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-27 14:46:38,490 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-27 14:46:38,491 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-27 14:46:38,491 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-27 14:46:38,492 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-27 14:46:38,493 INFO L153 SettingsManager]: * Use SBE=true [2024-01-27 14:46:38,493 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-27 14:46:38,493 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-27 14:46:38,493 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-27 14:46:38,493 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-27 14:46:38,494 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-27 14:46:38,494 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-27 14:46:38,494 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-27 14:46:38,494 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-27 14:46:38,495 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-27 14:46:38,495 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-27 14:46:38,495 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-27 14:46:38,495 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-27 14:46:38,495 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-27 14:46:38,496 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-27 14:46:38,496 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-27 14:46:38,497 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-27 14:46:38,497 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-27 14:46:38,497 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 14:46:38,498 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-27 14:46:38,498 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-27 14:46:38,498 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-27 14:46:38,498 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-27 14:46:38,498 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-27 14:46:38,498 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-27 14:46:38,499 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-27 14:46:38,499 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-27 14:46:38,499 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-27 14:46:38,499 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-27 14:46:38,499 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-27 14:46:38,738 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-27 14:46:38,763 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-27 14:46:38,765 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-27 14:46:38,766 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-27 14:46:38,766 INFO L274 PluginConnector]: CDTParser initialized [2024-01-27 14:46:38,768 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/09_fmaxsym.i [2024-01-27 14:46:39,923 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-27 14:46:40,177 INFO L384 CDTParser]: Found 1 translation units. [2024-01-27 14:46:40,177 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/09_fmaxsym.i [2024-01-27 14:46:40,198 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8baea80e2/a980e93653ab4b7088ce67df57ed5262/FLAGc557efc36 [2024-01-27 14:46:40,209 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8baea80e2/a980e93653ab4b7088ce67df57ed5262 [2024-01-27 14:46:40,211 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-27 14:46:40,214 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-27 14:46:40,215 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/09_fmaxsym.yml/witness.yml [2024-01-27 14:46:40,287 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-27 14:46:40,288 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-27 14:46:40,290 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-27 14:46:40,290 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-27 14:46:40,293 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-27 14:46:40,294 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 02:46:40" (1/2) ... [2024-01-27 14:46:40,294 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2054c6f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:46:40, skipping insertion in model container [2024-01-27 14:46:40,295 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 02:46:40" (1/2) ... [2024-01-27 14:46:40,296 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@67242a99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:46:40, skipping insertion in model container [2024-01-27 14:46:40,296 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 02:46:40" (2/2) ... [2024-01-27 14:46:40,296 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2054c6f4 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:46:40, skipping insertion in model container [2024-01-27 14:46:40,296 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 02:46:40" (2/2) ... [2024-01-27 14:46:40,296 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-27 14:46:40,349 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-27 14:46:40,350 INFO L98 nessWitnessExtractor]: Location invariant before [L721-L721] offset % 2 == 0 [2024-01-27 14:46:40,350 INFO L98 nessWitnessExtractor]: Location invariant before [L721-L721] offset <= 2147483646 [2024-01-27 14:46:40,351 INFO L98 nessWitnessExtractor]: Location invariant before [L721-L721] (unsigned long )arg == 0UL [2024-01-27 14:46:40,351 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] i <= 2147483646 [2024-01-27 14:46:40,351 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] i <= 2147483646 [2024-01-27 14:46:40,352 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) [2024-01-27 14:46:40,352 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] offset <= 2147483645 [2024-01-27 14:46:40,352 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] offset <= 2147483645 [2024-01-27 14:46:40,352 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] e == 0 [2024-01-27 14:46:40,353 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) [2024-01-27 14:46:40,353 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] e == 0 [2024-01-27 14:46:40,353 INFO L98 nessWitnessExtractor]: Location invariant before [L710-L710] offset <= 2147483645 [2024-01-27 14:46:40,353 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) [2024-01-27 14:46:40,353 INFO L98 nessWitnessExtractor]: Location invariant before [L710-L710] e == 0 [2024-01-27 14:46:40,353 INFO L98 nessWitnessExtractor]: Location invariant before [L710-L710] i <= 2147483646 [2024-01-27 14:46:40,353 INFO L98 nessWitnessExtractor]: Location invariant after [L690-L694] (int )m == 1 [2024-01-27 14:46:40,354 INFO L98 nessWitnessExtractor]: Location invariant after [L701-L718] offset <= 2147483645 [2024-01-27 14:46:40,354 INFO L98 nessWitnessExtractor]: Location invariant after [L701-L718] (2LL - (long long )i) + (long long )offset >= 0LL [2024-01-27 14:46:40,354 INFO L98 nessWitnessExtractor]: Location invariant after [L701-L718] e == 0 [2024-01-27 14:46:40,354 INFO L98 nessWitnessExtractor]: Location invariant after [L701-L718] -2147483646 <= i [2024-01-27 14:46:40,354 INFO L98 nessWitnessExtractor]: Location invariant after [L701-L718] (-2LL + (long long )i) - (long long )offset >= 0LL [2024-01-27 14:46:40,354 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] i <= 2147483646 [2024-01-27 14:46:40,355 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] offset <= 2147483645 [2024-01-27 14:46:40,355 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) [2024-01-27 14:46:40,355 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] e == 0 [2024-01-27 14:46:40,355 INFO L98 nessWitnessExtractor]: Location invariant before [L722-L722] (unsigned long )arg == 0UL [2024-01-27 14:46:40,355 INFO L98 nessWitnessExtractor]: Location invariant after [L695-L699] (int )m == 0 [2024-01-27 14:46:40,355 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) [2024-01-27 14:46:40,355 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] i <= 2147483646 [2024-01-27 14:46:40,356 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) [2024-01-27 14:46:40,356 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] e == 0 [2024-01-27 14:46:40,356 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] e == 0 [2024-01-27 14:46:40,356 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] offset <= 2147483645 [2024-01-27 14:46:40,356 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) [2024-01-27 14:46:40,356 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] i <= 2147483646 [2024-01-27 14:46:40,356 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] offset <= 2147483645 [2024-01-27 14:46:40,357 INFO L98 nessWitnessExtractor]: Location invariant before [L713-L713] offset <= 2147483645 [2024-01-27 14:46:40,357 INFO L98 nessWitnessExtractor]: Location invariant before [L713-L713] i <= 2147483646 [2024-01-27 14:46:40,358 INFO L98 nessWitnessExtractor]: Location invariant before [L713-L713] e == 0 [2024-01-27 14:46:40,358 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) [2024-01-27 14:46:40,358 INFO L98 nessWitnessExtractor]: Location invariant before [L716-L716] e == 0 [2024-01-27 14:46:40,358 INFO L98 nessWitnessExtractor]: Location invariant before [L716-L716] offset <= 2147483645 [2024-01-27 14:46:40,358 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) [2024-01-27 14:46:40,358 INFO L98 nessWitnessExtractor]: Location invariant before [L716-L716] i <= 2147483646 [2024-01-27 14:46:40,359 INFO L98 nessWitnessExtractor]: Location invariant before [L714-L714] i <= 2147483646 [2024-01-27 14:46:40,359 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) [2024-01-27 14:46:40,359 INFO L98 nessWitnessExtractor]: Location invariant before [L714-L714] offset <= 2147483645 [2024-01-27 14:46:40,359 INFO L98 nessWitnessExtractor]: Location invariant before [L714-L714] e == 0 [2024-01-27 14:46:40,359 INFO L98 nessWitnessExtractor]: Location invariant before [L706-L706] i <= 2147483646 [2024-01-27 14:46:40,360 INFO L98 nessWitnessExtractor]: Location invariant before [L706-L706] offset <= 2147483645 [2024-01-27 14:46:40,360 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) [2024-01-27 14:46:40,360 INFO L98 nessWitnessExtractor]: Location invariant before [L720-L720] (unsigned long )arg == 0UL [2024-01-27 14:46:40,360 INFO L98 nessWitnessExtractor]: Location invariant before [L709-L711] offset <= 2147483645 [2024-01-27 14:46:40,360 INFO L98 nessWitnessExtractor]: Location invariant before [L709-L711] i <= 2147483646 [2024-01-27 14:46:40,361 INFO L98 nessWitnessExtractor]: Location invariant before [L709-L711] e == 0 [2024-01-27 14:46:40,361 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) [2024-01-27 14:46:40,361 INFO L98 nessWitnessExtractor]: Location invariant before [L723-L723] (unsigned long )arg == 0UL [2024-01-27 14:46:40,403 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-27 14:46:40,721 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] [2024-01-27 14:46:40,732 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 14:46:40,739 INFO L202 MainTranslator]: Completed pre-run [2024-01-27 14:46:40,769 WARN L424 MainDispatcher]: Unable to annotate void __VERIFIER_atomic_acquire() { assume_abort_if_not(m==0); m = 1; } with a witness entry [2024-01-27 14:46:40,769 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 [2024-01-27 14:46:40,821 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 [2024-01-27 14:46:40,826 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 [2024-01-27 14:46:40,833 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 [2024-01-27 14:46:40,840 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 14:46:40,871 INFO L206 MainTranslator]: Completed translation [2024-01-27 14:46:40,871 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:46:40 WrapperNode [2024-01-27 14:46:40,871 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-27 14:46:40,872 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-27 14:46:40,872 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-27 14:46:40,872 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-27 14:46:40,877 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:46:40" (1/1) ... [2024-01-27 14:46:40,894 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:46:40" (1/1) ... [2024-01-27 14:46:40,933 INFO L138 Inliner]: procedures = 171, calls = 27, calls flagged for inlining = 10, calls inlined = 12, statements flattened = 146 [2024-01-27 14:46:40,933 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-27 14:46:40,934 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-27 14:46:40,934 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-27 14:46:40,934 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-27 14:46:40,943 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:46:40" (1/1) ... [2024-01-27 14:46:40,943 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:46:40" (1/1) ... [2024-01-27 14:46:40,954 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:46:40" (1/1) ... [2024-01-27 14:46:40,976 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]. [2024-01-27 14:46:40,976 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:46:40" (1/1) ... [2024-01-27 14:46:40,977 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:46:40" (1/1) ... [2024-01-27 14:46:40,986 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:46:40" (1/1) ... [2024-01-27 14:46:40,995 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:46:40" (1/1) ... [2024-01-27 14:46:40,997 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:46:40" (1/1) ... [2024-01-27 14:46:40,999 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:46:40" (1/1) ... [2024-01-27 14:46:41,001 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-27 14:46:41,001 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-27 14:46:41,002 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-27 14:46:41,002 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-27 14:46:41,002 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:46:40" (1/1) ... [2024-01-27 14:46:41,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 14:46:41,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 14:46:41,051 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) [2024-01-27 14:46:41,084 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 [2024-01-27 14:46:41,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-27 14:46:41,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-27 14:46:41,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-27 14:46:41,110 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-01-27 14:46:41,110 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-01-27 14:46:41,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-27 14:46:41,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-27 14:46:41,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-27 14:46:41,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-27 14:46:41,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-27 14:46:41,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-27 14:46:41,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-27 14:46:41,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-27 14:46:41,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-27 14:46:41,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-27 14:46:41,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-27 14:46:41,113 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-27 14:46:41,199 INFO L244 CfgBuilder]: Building ICFG [2024-01-27 14:46:41,200 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-27 14:46:41,479 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-27 14:46:41,480 INFO L293 CfgBuilder]: Performing block encoding [2024-01-27 14:46:41,575 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-27 14:46:41,576 INFO L320 CfgBuilder]: Removed 3 assume(true) statements. [2024-01-27 14:46:41,577 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 02:46:41 BoogieIcfgContainer [2024-01-27 14:46:41,577 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-27 14:46:41,581 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-27 14:46:41,581 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-27 14:46:41,583 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-27 14:46:41,584 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 02:46:40" (1/4) ... [2024-01-27 14:46:41,584 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f7ad4dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 02:46:41, skipping insertion in model container [2024-01-27 14:46:41,585 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 02:46:40" (2/4) ... [2024-01-27 14:46:41,585 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f7ad4dd and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.01 02:46:41, skipping insertion in model container [2024-01-27 14:46:41,585 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:46:40" (3/4) ... [2024-01-27 14:46:41,586 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f7ad4dd and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.01 02:46:41, skipping insertion in model container [2024-01-27 14:46:41,586 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 02:46:41" (4/4) ... [2024-01-27 14:46:41,587 INFO L112 eAbstractionObserver]: Analyzing ICFG 09_fmaxsym.i [2024-01-27 14:46:41,601 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-27 14:46:41,601 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2024-01-27 14:46:41,601 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-27 14:46:41,719 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-27 14:46:41,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 107 places, 108 transitions, 220 flow [2024-01-27 14:46:41,797 INFO L124 PetriNetUnfolderBase]: 4/110 cut-off events. [2024-01-27 14:46:41,797 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 14:46:41,800 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. [2024-01-27 14:46:41,800 INFO L82 GeneralOperation]: Start removeDead. Operand has 107 places, 108 transitions, 220 flow [2024-01-27 14:46:41,804 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 107 places, 108 transitions, 220 flow [2024-01-27 14:46:41,815 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-27 14:46:41,821 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;@271d4ee1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-27 14:46:41,821 INFO L358 AbstractCegarLoop]: Starting to check reachability of 89 error locations. [2024-01-27 14:46:41,825 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-27 14:46:41,826 INFO L124 PetriNetUnfolderBase]: 1/8 cut-off events. [2024-01-27 14:46:41,826 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 14:46:41,826 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:46:41,827 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-27 14:46:41,828 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 86 more)] === [2024-01-27 14:46:41,832 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:46:41,832 INFO L85 PathProgramCache]: Analyzing trace with hash -401718454, now seen corresponding path program 1 times [2024-01-27 14:46:41,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:46:41,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588456259] [2024-01-27 14:46:41,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:46:41,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:46:41,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:46:42,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:46:42,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:46:42,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588456259] [2024-01-27 14:46:42,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588456259] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:46:42,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:46:42,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-27 14:46:42,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693320906] [2024-01-27 14:46:42,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:46:42,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 14:46:42,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:46:42,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 14:46:42,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 14:46:42,114 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 108 [2024-01-27 14:46:42,118 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) [2024-01-27 14:46:42,119 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:46:42,119 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 108 [2024-01-27 14:46:42,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:46:42,232 INFO L124 PetriNetUnfolderBase]: 29/314 cut-off events. [2024-01-27 14:46:42,232 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 14:46:42,234 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. [2024-01-27 14:46:42,239 INFO L140 encePairwiseOnDemand]: 103/108 looper letters, 17 selfloop transitions, 2 changer transitions 0/107 dead transitions. [2024-01-27 14:46:42,240 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 107 transitions, 256 flow [2024-01-27 14:46:42,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 14:46:42,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 14:46:42,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2024-01-27 14:46:42,260 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8827160493827161 [2024-01-27 14:46:42,262 INFO L175 Difference]: Start difference. First operand has 107 places, 108 transitions, 220 flow. Second operand 3 states and 286 transitions. [2024-01-27 14:46:42,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 107 transitions, 256 flow [2024-01-27 14:46:42,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 107 transitions, 256 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-01-27 14:46:42,269 INFO L231 Difference]: Finished difference. Result has 109 places, 107 transitions, 228 flow [2024-01-27 14:46:42,270 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} [2024-01-27 14:46:42,273 INFO L281 CegarLoopForPetriNet]: 107 programPoint places, 2 predicate places. [2024-01-27 14:46:42,273 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 107 transitions, 228 flow [2024-01-27 14:46:42,274 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) [2024-01-27 14:46:42,274 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:46:42,274 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:46:42,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-27 14:46:42,274 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 86 more)] === [2024-01-27 14:46:42,275 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:46:42,275 INFO L85 PathProgramCache]: Analyzing trace with hash 405421874, now seen corresponding path program 1 times [2024-01-27 14:46:42,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:46:42,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499823444] [2024-01-27 14:46:42,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:46:42,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:46:42,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:46:42,382 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:46:42,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:46:42,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499823444] [2024-01-27 14:46:42,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499823444] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-27 14:46:42,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1278282923] [2024-01-27 14:46:42,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:46:42,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-27 14:46:42,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 14:46:42,385 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) [2024-01-27 14:46:42,413 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-01-27 14:46:42,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:46:42,465 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 3 conjunts are in the unsatisfiable core [2024-01-27 14:46:42,469 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-27 14:46:42,494 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:46:42,494 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-27 14:46:42,506 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:46:42,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1278282923] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-27 14:46:42,507 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-27 14:46:42,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-01-27 14:46:42,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492239239] [2024-01-27 14:46:42,508 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-27 14:46:42,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-01-27 14:46:42,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:46:42,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-01-27 14:46:42,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-01-27 14:46:42,510 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 108 [2024-01-27 14:46:42,511 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) [2024-01-27 14:46:42,511 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:46:42,511 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 108 [2024-01-27 14:46:42,511 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:46:42,576 INFO L124 PetriNetUnfolderBase]: 29/317 cut-off events. [2024-01-27 14:46:42,577 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 14:46:42,578 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. [2024-01-27 14:46:42,579 INFO L140 encePairwiseOnDemand]: 105/108 looper letters, 17 selfloop transitions, 5 changer transitions 0/110 dead transitions. [2024-01-27 14:46:42,579 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 110 transitions, 284 flow [2024-01-27 14:46:42,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-01-27 14:46:42,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-01-27 14:46:42,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 553 transitions. [2024-01-27 14:46:42,583 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8533950617283951 [2024-01-27 14:46:42,583 INFO L175 Difference]: Start difference. First operand has 109 places, 107 transitions, 228 flow. Second operand 6 states and 553 transitions. [2024-01-27 14:46:42,583 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 110 transitions, 284 flow [2024-01-27 14:46:42,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 110 transitions, 280 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-01-27 14:46:42,586 INFO L231 Difference]: Finished difference. Result has 116 places, 110 transitions, 260 flow [2024-01-27 14:46:42,587 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} [2024-01-27 14:46:42,587 INFO L281 CegarLoopForPetriNet]: 107 programPoint places, 9 predicate places. [2024-01-27 14:46:42,588 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 110 transitions, 260 flow [2024-01-27 14:46:42,588 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) [2024-01-27 14:46:42,588 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:46:42,589 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1] [2024-01-27 14:46:42,600 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-01-27 14:46:42,799 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 [2024-01-27 14:46:42,800 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 86 more)] === [2024-01-27 14:46:42,801 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:46:42,801 INFO L85 PathProgramCache]: Analyzing trace with hash 220331338, now seen corresponding path program 2 times [2024-01-27 14:46:42,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:46:42,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870387245] [2024-01-27 14:46:42,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:46:42,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:46:42,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:46:42,937 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:46:42,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:46:42,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870387245] [2024-01-27 14:46:42,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870387245] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-27 14:46:42,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1274574730] [2024-01-27 14:46:42,938 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-01-27 14:46:42,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-27 14:46:42,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 14:46:42,939 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) [2024-01-27 14:46:42,968 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-01-27 14:46:43,001 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-01-27 14:46:43,002 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-01-27 14:46:43,003 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 9 conjunts are in the unsatisfiable core [2024-01-27 14:46:43,004 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-27 14:46:43,033 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-01-27 14:46:43,033 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-01-27 14:46:43,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1274574730] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:46:43,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-01-27 14:46:43,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2024-01-27 14:46:43,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915191955] [2024-01-27 14:46:43,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:46:43,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 14:46:43,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:46:43,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 14:46:43,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-01-27 14:46:43,044 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 108 [2024-01-27 14:46:43,045 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) [2024-01-27 14:46:43,045 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:46:43,045 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 108 [2024-01-27 14:46:43,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:46:43,118 INFO L124 PetriNetUnfolderBase]: 31/321 cut-off events. [2024-01-27 14:46:43,118 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-27 14:46:43,120 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 1216 event pairs, 0 based on Foata normal form. 3/210 useless extension candidates. Maximal degree in co-relation 389. Up to 63 conditions per place. [2024-01-27 14:46:43,121 INFO L140 encePairwiseOnDemand]: 102/108 looper letters, 24 selfloop transitions, 2 changer transitions 0/109 dead transitions. [2024-01-27 14:46:43,121 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 109 transitions, 310 flow [2024-01-27 14:46:43,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 14:46:43,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 14:46:43,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 358 transitions. [2024-01-27 14:46:43,124 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8287037037037037 [2024-01-27 14:46:43,124 INFO L175 Difference]: Start difference. First operand has 116 places, 110 transitions, 260 flow. Second operand 4 states and 358 transitions. [2024-01-27 14:46:43,124 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 109 transitions, 310 flow [2024-01-27 14:46:43,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 109 transitions, 296 flow, removed 6 selfloop flow, removed 1 redundant places. [2024-01-27 14:46:43,129 INFO L231 Difference]: Finished difference. Result has 114 places, 106 transitions, 242 flow [2024-01-27 14:46:43,131 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} [2024-01-27 14:46:43,132 INFO L281 CegarLoopForPetriNet]: 107 programPoint places, 7 predicate places. [2024-01-27 14:46:43,133 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 106 transitions, 242 flow [2024-01-27 14:46:43,133 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) [2024-01-27 14:46:43,134 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:46:43,134 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 2, 1, 1, 1, 1, 1] [2024-01-27 14:46:43,145 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-01-27 14:46:43,346 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 [2024-01-27 14:46:43,347 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 86 more)] === [2024-01-27 14:46:43,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:46:43,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1759705064, now seen corresponding path program 1 times [2024-01-27 14:46:43,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:46:43,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478330332] [2024-01-27 14:46:43,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:46:43,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:46:43,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:46:43,412 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-01-27 14:46:43,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:46:43,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478330332] [2024-01-27 14:46:43,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478330332] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-27 14:46:43,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1114196236] [2024-01-27 14:46:43,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:46:43,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-27 14:46:43,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 14:46:43,429 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) [2024-01-27 14:46:43,452 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-01-27 14:46:43,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:46:43,489 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 6 conjunts are in the unsatisfiable core [2024-01-27 14:46:43,490 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-27 14:46:43,502 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-01-27 14:46:43,502 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-27 14:46:43,529 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-01-27 14:46:43,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1114196236] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-27 14:46:43,530 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-27 14:46:43,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 8 [2024-01-27 14:46:43,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413181283] [2024-01-27 14:46:43,530 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-27 14:46:43,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-01-27 14:46:43,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:46:43,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-01-27 14:46:43,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2024-01-27 14:46:43,532 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 108 [2024-01-27 14:46:43,533 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) [2024-01-27 14:46:43,533 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:46:43,533 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 108 [2024-01-27 14:46:43,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:46:43,587 INFO L124 PetriNetUnfolderBase]: 29/313 cut-off events. [2024-01-27 14:46:43,588 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-01-27 14:46:43,588 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 1192 event pairs, 22 based on Foata normal form. 2/201 useless extension candidates. Maximal degree in co-relation 376. Up to 66 conditions per place. [2024-01-27 14:46:43,589 INFO L140 encePairwiseOnDemand]: 105/108 looper letters, 17 selfloop transitions, 7 changer transitions 0/108 dead transitions. [2024-01-27 14:46:43,589 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 108 transitions, 302 flow [2024-01-27 14:46:43,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-01-27 14:46:43,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-01-27 14:46:43,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 730 transitions. [2024-01-27 14:46:43,591 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8449074074074074 [2024-01-27 14:46:43,591 INFO L175 Difference]: Start difference. First operand has 114 places, 106 transitions, 242 flow. Second operand 8 states and 730 transitions. [2024-01-27 14:46:43,591 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 108 transitions, 302 flow [2024-01-27 14:46:43,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 108 transitions, 299 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 14:46:43,593 INFO L231 Difference]: Finished difference. Result has 121 places, 108 transitions, 275 flow [2024-01-27 14:46:43,594 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} [2024-01-27 14:46:43,594 INFO L281 CegarLoopForPetriNet]: 107 programPoint places, 14 predicate places. [2024-01-27 14:46:43,594 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 108 transitions, 275 flow [2024-01-27 14:46:43,595 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) [2024-01-27 14:46:43,595 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:46:43,595 INFO L208 CegarLoopForPetriNet]: trace histogram [6, 2, 1, 1, 1, 1, 1] [2024-01-27 14:46:43,615 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-01-27 14:46:43,824 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 [2024-01-27 14:46:43,825 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 86 more)] === [2024-01-27 14:46:43,825 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:46:43,826 INFO L85 PathProgramCache]: Analyzing trace with hash 952347416, now seen corresponding path program 2 times [2024-01-27 14:46:43,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:46:43,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109710113] [2024-01-27 14:46:43,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:46:43,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:46:43,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 14:46:43,855 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-27 14:46:43,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 14:46:43,891 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-27 14:46:43,894 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-27 14:46:43,895 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (88 of 89 remaining) [2024-01-27 14:46:43,896 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (87 of 89 remaining) [2024-01-27 14:46:43,897 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (86 of 89 remaining) [2024-01-27 14:46:43,897 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (85 of 89 remaining) [2024-01-27 14:46:43,897 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (84 of 89 remaining) [2024-01-27 14:46:43,901 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (83 of 89 remaining) [2024-01-27 14:46:43,901 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (82 of 89 remaining) [2024-01-27 14:46:43,902 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (81 of 89 remaining) [2024-01-27 14:46:43,902 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err43ASSERT_VIOLATIONWITNESS_INVARIANT (80 of 89 remaining) [2024-01-27 14:46:43,902 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (79 of 89 remaining) [2024-01-27 14:46:43,902 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (78 of 89 remaining) [2024-01-27 14:46:43,902 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (77 of 89 remaining) [2024-01-27 14:46:43,903 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (76 of 89 remaining) [2024-01-27 14:46:43,903 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (75 of 89 remaining) [2024-01-27 14:46:43,903 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (74 of 89 remaining) [2024-01-27 14:46:43,903 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (73 of 89 remaining) [2024-01-27 14:46:43,903 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (72 of 89 remaining) [2024-01-27 14:46:43,903 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (71 of 89 remaining) [2024-01-27 14:46:43,903 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (70 of 89 remaining) [2024-01-27 14:46:43,904 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (69 of 89 remaining) [2024-01-27 14:46:43,904 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (68 of 89 remaining) [2024-01-27 14:46:43,904 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (67 of 89 remaining) [2024-01-27 14:46:43,904 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (66 of 89 remaining) [2024-01-27 14:46:43,904 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (65 of 89 remaining) [2024-01-27 14:46:43,904 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (64 of 89 remaining) [2024-01-27 14:46:43,905 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (63 of 89 remaining) [2024-01-27 14:46:43,905 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (62 of 89 remaining) [2024-01-27 14:46:43,905 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (61 of 89 remaining) [2024-01-27 14:46:43,905 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONWITNESS_INVARIANT (60 of 89 remaining) [2024-01-27 14:46:43,905 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONWITNESS_INVARIANT (59 of 89 remaining) [2024-01-27 14:46:43,905 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 89 remaining) [2024-01-27 14:46:43,905 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 89 remaining) [2024-01-27 14:46:43,906 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 89 remaining) [2024-01-27 14:46:43,906 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 89 remaining) [2024-01-27 14:46:43,906 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err32ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 89 remaining) [2024-01-27 14:46:43,907 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err33ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 89 remaining) [2024-01-27 14:46:43,907 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err34ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 89 remaining) [2024-01-27 14:46:43,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err35ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 89 remaining) [2024-01-27 14:46:43,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err36ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 89 remaining) [2024-01-27 14:46:43,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err37ASSERT_VIOLATIONERROR_FUNCTION (49 of 89 remaining) [2024-01-27 14:46:43,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err38ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 89 remaining) [2024-01-27 14:46:43,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err39ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 89 remaining) [2024-01-27 14:46:43,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err40ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 89 remaining) [2024-01-27 14:46:43,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err41ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 89 remaining) [2024-01-27 14:46:43,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err42ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 89 remaining) [2024-01-27 14:46:43,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 89 remaining) [2024-01-27 14:46:43,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 89 remaining) [2024-01-27 14:46:43,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 89 remaining) [2024-01-27 14:46:43,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 89 remaining) [2024-01-27 14:46:43,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 89 remaining) [2024-01-27 14:46:43,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 89 remaining) [2024-01-27 14:46:43,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 89 remaining) [2024-01-27 14:46:43,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err43ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 89 remaining) [2024-01-27 14:46:43,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 89 remaining) [2024-01-27 14:46:43,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 89 remaining) [2024-01-27 14:46:43,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 89 remaining) [2024-01-27 14:46:43,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 89 remaining) [2024-01-27 14:46:43,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 89 remaining) [2024-01-27 14:46:43,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 89 remaining) [2024-01-27 14:46:43,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 89 remaining) [2024-01-27 14:46:43,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 89 remaining) [2024-01-27 14:46:43,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 89 remaining) [2024-01-27 14:46:43,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 89 remaining) [2024-01-27 14:46:43,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 89 remaining) [2024-01-27 14:46:43,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 89 remaining) [2024-01-27 14:46:43,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 89 remaining) [2024-01-27 14:46:43,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 89 remaining) [2024-01-27 14:46:43,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 89 remaining) [2024-01-27 14:46:43,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 89 remaining) [2024-01-27 14:46:43,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 89 remaining) [2024-01-27 14:46:43,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 89 remaining) [2024-01-27 14:46:43,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 89 remaining) [2024-01-27 14:46:43,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 89 remaining) [2024-01-27 14:46:43,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 89 remaining) [2024-01-27 14:46:43,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 89 remaining) [2024-01-27 14:46:43,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 89 remaining) [2024-01-27 14:46:43,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 89 remaining) [2024-01-27 14:46:43,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 89 remaining) [2024-01-27 14:46:43,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err32ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 89 remaining) [2024-01-27 14:46:43,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err33ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 89 remaining) [2024-01-27 14:46:43,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err34ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 89 remaining) [2024-01-27 14:46:43,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err35ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 89 remaining) [2024-01-27 14:46:43,916 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err36ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 89 remaining) [2024-01-27 14:46:43,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err37ASSERT_VIOLATIONERROR_FUNCTION (5 of 89 remaining) [2024-01-27 14:46:43,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err38ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 89 remaining) [2024-01-27 14:46:43,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err39ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 89 remaining) [2024-01-27 14:46:43,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err40ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 89 remaining) [2024-01-27 14:46:43,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err41ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 89 remaining) [2024-01-27 14:46:43,920 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err42ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 89 remaining) [2024-01-27 14:46:43,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-27 14:46:43,920 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1] [2024-01-27 14:46:43,927 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-01-27 14:46:43,927 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-01-27 14:46:43,991 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-27 14:46:43,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 207 places, 209 transitions, 428 flow [2024-01-27 14:46:44,012 INFO L124 PetriNetUnfolderBase]: 7/214 cut-off events. [2024-01-27 14:46:44,012 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-27 14:46:44,013 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. [2024-01-27 14:46:44,014 INFO L82 GeneralOperation]: Start removeDead. Operand has 207 places, 209 transitions, 428 flow [2024-01-27 14:46:44,016 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 207 places, 209 transitions, 428 flow [2024-01-27 14:46:44,017 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-27 14:46:44,017 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;@271d4ee1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-27 14:46:44,018 INFO L358 AbstractCegarLoop]: Starting to check reachability of 133 error locations. [2024-01-27 14:46:44,019 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-27 14:46:44,019 INFO L124 PetriNetUnfolderBase]: 1/8 cut-off events. [2024-01-27 14:46:44,019 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 14:46:44,019 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:46:44,019 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-27 14:46:44,019 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 130 more)] === [2024-01-27 14:46:44,020 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:46:44,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1486355854, now seen corresponding path program 1 times [2024-01-27 14:46:44,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:46:44,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782227514] [2024-01-27 14:46:44,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:46:44,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:46:44,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:46:44,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:46:44,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:46:44,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782227514] [2024-01-27 14:46:44,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782227514] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:46:44,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:46:44,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-27 14:46:44,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016892380] [2024-01-27 14:46:44,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:46:44,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 14:46:44,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:46:44,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 14:46:44,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 14:46:44,047 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 209 [2024-01-27 14:46:44,048 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) [2024-01-27 14:46:44,048 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:46:44,048 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 209 [2024-01-27 14:46:44,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:46:44,513 INFO L124 PetriNetUnfolderBase]: 927/5292 cut-off events. [2024-01-27 14:46:44,513 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-01-27 14:46:44,523 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. [2024-01-27 14:46:44,545 INFO L140 encePairwiseOnDemand]: 203/209 looper letters, 30 selfloop transitions, 2 changer transitions 0/207 dead transitions. [2024-01-27 14:46:44,545 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 207 transitions, 488 flow [2024-01-27 14:46:44,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 14:46:44,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 14:46:44,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 561 transitions. [2024-01-27 14:46:44,546 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8947368421052632 [2024-01-27 14:46:44,546 INFO L175 Difference]: Start difference. First operand has 207 places, 209 transitions, 428 flow. Second operand 3 states and 561 transitions. [2024-01-27 14:46:44,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 207 transitions, 488 flow [2024-01-27 14:46:44,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 207 transitions, 488 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-01-27 14:46:44,549 INFO L231 Difference]: Finished difference. Result has 209 places, 207 transitions, 434 flow [2024-01-27 14:46:44,550 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} [2024-01-27 14:46:44,550 INFO L281 CegarLoopForPetriNet]: 207 programPoint places, 2 predicate places. [2024-01-27 14:46:44,550 INFO L495 AbstractCegarLoop]: Abstraction has has 209 places, 207 transitions, 434 flow [2024-01-27 14:46:44,551 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) [2024-01-27 14:46:44,551 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:46:44,551 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:46:44,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-27 14:46:44,551 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 130 more)] === [2024-01-27 14:46:44,551 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:46:44,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1196795513, now seen corresponding path program 1 times [2024-01-27 14:46:44,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:46:44,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460217947] [2024-01-27 14:46:44,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:46:44,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:46:44,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:46:44,574 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:46:44,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:46:44,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460217947] [2024-01-27 14:46:44,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460217947] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-27 14:46:44,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [707533931] [2024-01-27 14:46:44,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:46:44,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-27 14:46:44,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 14:46:44,589 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) [2024-01-27 14:46:44,606 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-01-27 14:46:44,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:46:44,661 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 3 conjunts are in the unsatisfiable core [2024-01-27 14:46:44,661 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-27 14:46:44,668 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:46:44,668 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-27 14:46:44,681 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:46:44,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [707533931] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-27 14:46:44,682 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-27 14:46:44,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-01-27 14:46:44,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815725233] [2024-01-27 14:46:44,682 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-27 14:46:44,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-01-27 14:46:44,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:46:44,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-01-27 14:46:44,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-01-27 14:46:44,684 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 209 [2024-01-27 14:46:44,685 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) [2024-01-27 14:46:44,686 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:46:44,686 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 209 [2024-01-27 14:46:44,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:46:45,178 INFO L124 PetriNetUnfolderBase]: 927/5295 cut-off events. [2024-01-27 14:46:45,179 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-01-27 14:46:45,190 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. [2024-01-27 14:46:45,210 INFO L140 encePairwiseOnDemand]: 206/209 looper letters, 30 selfloop transitions, 5 changer transitions 0/210 dead transitions. [2024-01-27 14:46:45,211 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 210 transitions, 516 flow [2024-01-27 14:46:45,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-01-27 14:46:45,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-01-27 14:46:45,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1088 transitions. [2024-01-27 14:46:45,213 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8676236044657097 [2024-01-27 14:46:45,213 INFO L175 Difference]: Start difference. First operand has 209 places, 207 transitions, 434 flow. Second operand 6 states and 1088 transitions. [2024-01-27 14:46:45,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 210 transitions, 516 flow [2024-01-27 14:46:45,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 210 transitions, 512 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-01-27 14:46:45,216 INFO L231 Difference]: Finished difference. Result has 216 places, 210 transitions, 466 flow [2024-01-27 14:46:45,216 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} [2024-01-27 14:46:45,217 INFO L281 CegarLoopForPetriNet]: 207 programPoint places, 9 predicate places. [2024-01-27 14:46:45,217 INFO L495 AbstractCegarLoop]: Abstraction has has 216 places, 210 transitions, 466 flow [2024-01-27 14:46:45,217 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) [2024-01-27 14:46:45,218 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:46:45,218 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1] [2024-01-27 14:46:45,244 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-01-27 14:46:45,429 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 [2024-01-27 14:46:45,429 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 130 more)] === [2024-01-27 14:46:45,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:46:45,430 INFO L85 PathProgramCache]: Analyzing trace with hash -129256498, now seen corresponding path program 2 times [2024-01-27 14:46:45,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:46:45,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152192384] [2024-01-27 14:46:45,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:46:45,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:46:45,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:46:45,536 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:46:45,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:46:45,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152192384] [2024-01-27 14:46:45,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152192384] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-27 14:46:45,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1311817631] [2024-01-27 14:46:45,536 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-01-27 14:46:45,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-27 14:46:45,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 14:46:45,565 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) [2024-01-27 14:46:45,581 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-01-27 14:46:45,634 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-01-27 14:46:45,635 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-01-27 14:46:45,635 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 9 conjunts are in the unsatisfiable core [2024-01-27 14:46:45,637 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-27 14:46:45,658 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-01-27 14:46:45,659 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-01-27 14:46:45,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1311817631] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:46:45,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-01-27 14:46:45,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2024-01-27 14:46:45,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634462588] [2024-01-27 14:46:45,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:46:45,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 14:46:45,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:46:45,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 14:46:45,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-01-27 14:46:45,673 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 209 [2024-01-27 14:46:45,674 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) [2024-01-27 14:46:45,675 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:46:45,675 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 209 [2024-01-27 14:46:45,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:46:46,188 INFO L124 PetriNetUnfolderBase]: 988/5848 cut-off events. [2024-01-27 14:46:46,188 INFO L125 PetriNetUnfolderBase]: For 42/42 co-relation queries the response was YES. [2024-01-27 14:46:46,199 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 57994 event pairs, 409 based on Foata normal form. 39/3776 useless extension candidates. Maximal degree in co-relation 7365. Up to 1412 conditions per place. [2024-01-27 14:46:46,219 INFO L140 encePairwiseOnDemand]: 203/209 looper letters, 50 selfloop transitions, 2 changer transitions 0/222 dead transitions. [2024-01-27 14:46:46,219 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 222 transitions, 599 flow [2024-01-27 14:46:46,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 14:46:46,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 14:46:46,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 732 transitions. [2024-01-27 14:46:46,221 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8755980861244019 [2024-01-27 14:46:46,221 INFO L175 Difference]: Start difference. First operand has 216 places, 210 transitions, 466 flow. Second operand 4 states and 732 transitions. [2024-01-27 14:46:46,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 222 transitions, 599 flow [2024-01-27 14:46:46,224 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 222 transitions, 585 flow, removed 6 selfloop flow, removed 1 redundant places. [2024-01-27 14:46:46,226 INFO L231 Difference]: Finished difference. Result has 214 places, 206 transitions, 448 flow [2024-01-27 14:46:46,226 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} [2024-01-27 14:46:46,227 INFO L281 CegarLoopForPetriNet]: 207 programPoint places, 7 predicate places. [2024-01-27 14:46:46,227 INFO L495 AbstractCegarLoop]: Abstraction has has 214 places, 206 transitions, 448 flow [2024-01-27 14:46:46,228 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) [2024-01-27 14:46:46,228 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:46:46,228 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:46:46,252 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-01-27 14:46:46,439 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 [2024-01-27 14:46:46,440 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 130 more)] === [2024-01-27 14:46:46,440 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:46:46,440 INFO L85 PathProgramCache]: Analyzing trace with hash 338583408, now seen corresponding path program 1 times [2024-01-27 14:46:46,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:46:46,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080341089] [2024-01-27 14:46:46,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:46:46,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:46:46,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:46:46,509 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:46:46,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:46:46,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080341089] [2024-01-27 14:46:46,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080341089] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-27 14:46:46,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1295576328] [2024-01-27 14:46:46,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:46:46,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-27 14:46:46,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 14:46:46,511 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) [2024-01-27 14:46:46,554 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-01-27 14:46:46,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:46:46,592 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 6 conjunts are in the unsatisfiable core [2024-01-27 14:46:46,593 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-27 14:46:46,602 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:46:46,603 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-27 14:46:46,626 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:46:46,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1295576328] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-27 14:46:46,627 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-27 14:46:46,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 8 [2024-01-27 14:46:46,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055833595] [2024-01-27 14:46:46,627 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-27 14:46:46,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-01-27 14:46:46,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:46:46,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-01-27 14:46:46,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2024-01-27 14:46:46,629 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 209 [2024-01-27 14:46:46,631 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) [2024-01-27 14:46:46,631 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:46:46,631 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 209 [2024-01-27 14:46:46,631 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:46:47,087 INFO L124 PetriNetUnfolderBase]: 927/5282 cut-off events. [2024-01-27 14:46:47,087 INFO L125 PetriNetUnfolderBase]: For 53/53 co-relation queries the response was YES. [2024-01-27 14:46:47,103 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 51180 event pairs, 728 based on Foata normal form. 2/3365 useless extension candidates. Maximal degree in co-relation 6705. Up to 1390 conditions per place. [2024-01-27 14:46:47,128 INFO L140 encePairwiseOnDemand]: 206/209 looper letters, 30 selfloop transitions, 7 changer transitions 0/208 dead transitions. [2024-01-27 14:46:47,128 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 208 transitions, 534 flow [2024-01-27 14:46:47,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-01-27 14:46:47,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-01-27 14:46:47,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1439 transitions. [2024-01-27 14:46:47,131 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8606459330143541 [2024-01-27 14:46:47,131 INFO L175 Difference]: Start difference. First operand has 214 places, 206 transitions, 448 flow. Second operand 8 states and 1439 transitions. [2024-01-27 14:46:47,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 208 transitions, 534 flow [2024-01-27 14:46:47,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 208 transitions, 531 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 14:46:47,134 INFO L231 Difference]: Finished difference. Result has 221 places, 208 transitions, 481 flow [2024-01-27 14:46:47,135 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} [2024-01-27 14:46:47,135 INFO L281 CegarLoopForPetriNet]: 207 programPoint places, 14 predicate places. [2024-01-27 14:46:47,135 INFO L495 AbstractCegarLoop]: Abstraction has has 221 places, 208 transitions, 481 flow [2024-01-27 14:46:47,136 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) [2024-01-27 14:46:47,136 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:46:47,136 INFO L208 CegarLoopForPetriNet]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:46:47,159 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-01-27 14:46:47,348 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 [2024-01-27 14:46:47,349 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 130 more)] === [2024-01-27 14:46:47,349 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:46:47,349 INFO L85 PathProgramCache]: Analyzing trace with hash -966392176, now seen corresponding path program 2 times [2024-01-27 14:46:47,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:46:47,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692648694] [2024-01-27 14:46:47,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:46:47,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:46:47,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 14:46:47,363 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-27 14:46:47,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 14:46:47,398 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-27 14:46:47,398 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-27 14:46:47,398 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (132 of 133 remaining) [2024-01-27 14:46:47,398 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (131 of 133 remaining) [2024-01-27 14:46:47,398 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (130 of 133 remaining) [2024-01-27 14:46:47,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (129 of 133 remaining) [2024-01-27 14:46:47,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (128 of 133 remaining) [2024-01-27 14:46:47,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (127 of 133 remaining) [2024-01-27 14:46:47,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (126 of 133 remaining) [2024-01-27 14:46:47,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (125 of 133 remaining) [2024-01-27 14:46:47,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err43ASSERT_VIOLATIONWITNESS_INVARIANT (124 of 133 remaining) [2024-01-27 14:46:47,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (123 of 133 remaining) [2024-01-27 14:46:47,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (122 of 133 remaining) [2024-01-27 14:46:47,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (121 of 133 remaining) [2024-01-27 14:46:47,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (120 of 133 remaining) [2024-01-27 14:46:47,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (119 of 133 remaining) [2024-01-27 14:46:47,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (118 of 133 remaining) [2024-01-27 14:46:47,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (117 of 133 remaining) [2024-01-27 14:46:47,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (116 of 133 remaining) [2024-01-27 14:46:47,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (115 of 133 remaining) [2024-01-27 14:46:47,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (114 of 133 remaining) [2024-01-27 14:46:47,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (113 of 133 remaining) [2024-01-27 14:46:47,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (112 of 133 remaining) [2024-01-27 14:46:47,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (111 of 133 remaining) [2024-01-27 14:46:47,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (110 of 133 remaining) [2024-01-27 14:46:47,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (109 of 133 remaining) [2024-01-27 14:46:47,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (108 of 133 remaining) [2024-01-27 14:46:47,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (107 of 133 remaining) [2024-01-27 14:46:47,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (106 of 133 remaining) [2024-01-27 14:46:47,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (105 of 133 remaining) [2024-01-27 14:46:47,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONWITNESS_INVARIANT (104 of 133 remaining) [2024-01-27 14:46:47,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONWITNESS_INVARIANT (103 of 133 remaining) [2024-01-27 14:46:47,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONWITNESS_INVARIANT (102 of 133 remaining) [2024-01-27 14:46:47,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONWITNESS_INVARIANT (101 of 133 remaining) [2024-01-27 14:46:47,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30ASSERT_VIOLATIONWITNESS_INVARIANT (100 of 133 remaining) [2024-01-27 14:46:47,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31ASSERT_VIOLATIONWITNESS_INVARIANT (99 of 133 remaining) [2024-01-27 14:46:47,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err32ASSERT_VIOLATIONWITNESS_INVARIANT (98 of 133 remaining) [2024-01-27 14:46:47,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err33ASSERT_VIOLATIONWITNESS_INVARIANT (97 of 133 remaining) [2024-01-27 14:46:47,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err34ASSERT_VIOLATIONWITNESS_INVARIANT (96 of 133 remaining) [2024-01-27 14:46:47,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err35ASSERT_VIOLATIONWITNESS_INVARIANT (95 of 133 remaining) [2024-01-27 14:46:47,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err36ASSERT_VIOLATIONWITNESS_INVARIANT (94 of 133 remaining) [2024-01-27 14:46:47,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err37ASSERT_VIOLATIONERROR_FUNCTION (93 of 133 remaining) [2024-01-27 14:46:47,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err38ASSERT_VIOLATIONWITNESS_INVARIANT (92 of 133 remaining) [2024-01-27 14:46:47,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err39ASSERT_VIOLATIONWITNESS_INVARIANT (91 of 133 remaining) [2024-01-27 14:46:47,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err40ASSERT_VIOLATIONWITNESS_INVARIANT (90 of 133 remaining) [2024-01-27 14:46:47,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err41ASSERT_VIOLATIONWITNESS_INVARIANT (89 of 133 remaining) [2024-01-27 14:46:47,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err42ASSERT_VIOLATIONWITNESS_INVARIANT (88 of 133 remaining) [2024-01-27 14:46:47,404 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (87 of 133 remaining) [2024-01-27 14:46:47,404 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (86 of 133 remaining) [2024-01-27 14:46:47,404 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (85 of 133 remaining) [2024-01-27 14:46:47,404 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (84 of 133 remaining) [2024-01-27 14:46:47,404 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (83 of 133 remaining) [2024-01-27 14:46:47,404 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (82 of 133 remaining) [2024-01-27 14:46:47,404 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (81 of 133 remaining) [2024-01-27 14:46:47,404 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (80 of 133 remaining) [2024-01-27 14:46:47,405 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err43ASSERT_VIOLATIONWITNESS_INVARIANT (79 of 133 remaining) [2024-01-27 14:46:47,405 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (78 of 133 remaining) [2024-01-27 14:46:47,405 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (77 of 133 remaining) [2024-01-27 14:46:47,405 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (76 of 133 remaining) [2024-01-27 14:46:47,405 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (75 of 133 remaining) [2024-01-27 14:46:47,405 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (74 of 133 remaining) [2024-01-27 14:46:47,405 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (73 of 133 remaining) [2024-01-27 14:46:47,405 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (72 of 133 remaining) [2024-01-27 14:46:47,405 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (71 of 133 remaining) [2024-01-27 14:46:47,406 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (70 of 133 remaining) [2024-01-27 14:46:47,406 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (69 of 133 remaining) [2024-01-27 14:46:47,406 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (68 of 133 remaining) [2024-01-27 14:46:47,406 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (67 of 133 remaining) [2024-01-27 14:46:47,406 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (66 of 133 remaining) [2024-01-27 14:46:47,406 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (65 of 133 remaining) [2024-01-27 14:46:47,406 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (64 of 133 remaining) [2024-01-27 14:46:47,406 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (63 of 133 remaining) [2024-01-27 14:46:47,406 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (62 of 133 remaining) [2024-01-27 14:46:47,407 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (61 of 133 remaining) [2024-01-27 14:46:47,407 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (60 of 133 remaining) [2024-01-27 14:46:47,407 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONWITNESS_INVARIANT (59 of 133 remaining) [2024-01-27 14:46:47,407 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 133 remaining) [2024-01-27 14:46:47,407 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 133 remaining) [2024-01-27 14:46:47,407 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 133 remaining) [2024-01-27 14:46:47,407 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 133 remaining) [2024-01-27 14:46:47,407 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 133 remaining) [2024-01-27 14:46:47,408 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err32ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 133 remaining) [2024-01-27 14:46:47,408 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err33ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 133 remaining) [2024-01-27 14:46:47,408 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err34ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 133 remaining) [2024-01-27 14:46:47,408 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err35ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 133 remaining) [2024-01-27 14:46:47,408 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err36ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 133 remaining) [2024-01-27 14:46:47,408 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err37ASSERT_VIOLATIONERROR_FUNCTION (48 of 133 remaining) [2024-01-27 14:46:47,408 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err38ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 133 remaining) [2024-01-27 14:46:47,408 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err39ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 133 remaining) [2024-01-27 14:46:47,408 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err40ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 133 remaining) [2024-01-27 14:46:47,409 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err41ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 133 remaining) [2024-01-27 14:46:47,409 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err42ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 133 remaining) [2024-01-27 14:46:47,409 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 133 remaining) [2024-01-27 14:46:47,409 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 133 remaining) [2024-01-27 14:46:47,409 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 133 remaining) [2024-01-27 14:46:47,409 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 133 remaining) [2024-01-27 14:46:47,409 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 133 remaining) [2024-01-27 14:46:47,409 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 133 remaining) [2024-01-27 14:46:47,410 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err43ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 133 remaining) [2024-01-27 14:46:47,410 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 133 remaining) [2024-01-27 14:46:47,410 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 133 remaining) [2024-01-27 14:46:47,410 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 133 remaining) [2024-01-27 14:46:47,410 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 133 remaining) [2024-01-27 14:46:47,410 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 133 remaining) [2024-01-27 14:46:47,410 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 133 remaining) [2024-01-27 14:46:47,410 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 133 remaining) [2024-01-27 14:46:47,410 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 133 remaining) [2024-01-27 14:46:47,411 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 133 remaining) [2024-01-27 14:46:47,411 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 133 remaining) [2024-01-27 14:46:47,411 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 133 remaining) [2024-01-27 14:46:47,411 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 133 remaining) [2024-01-27 14:46:47,411 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 133 remaining) [2024-01-27 14:46:47,411 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 133 remaining) [2024-01-27 14:46:47,411 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 133 remaining) [2024-01-27 14:46:47,411 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 133 remaining) [2024-01-27 14:46:47,411 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 133 remaining) [2024-01-27 14:46:47,412 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 133 remaining) [2024-01-27 14:46:47,412 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 133 remaining) [2024-01-27 14:46:47,412 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 133 remaining) [2024-01-27 14:46:47,412 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 133 remaining) [2024-01-27 14:46:47,412 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 133 remaining) [2024-01-27 14:46:47,412 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 133 remaining) [2024-01-27 14:46:47,412 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 133 remaining) [2024-01-27 14:46:47,412 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 133 remaining) [2024-01-27 14:46:47,413 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err32ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 133 remaining) [2024-01-27 14:46:47,413 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err33ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 133 remaining) [2024-01-27 14:46:47,413 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err34ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 133 remaining) [2024-01-27 14:46:47,413 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err35ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 133 remaining) [2024-01-27 14:46:47,413 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err36ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 133 remaining) [2024-01-27 14:46:47,413 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err37ASSERT_VIOLATIONERROR_FUNCTION (5 of 133 remaining) [2024-01-27 14:46:47,413 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err38ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 133 remaining) [2024-01-27 14:46:47,413 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err39ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 133 remaining) [2024-01-27 14:46:47,413 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err40ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 133 remaining) [2024-01-27 14:46:47,414 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err41ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 133 remaining) [2024-01-27 14:46:47,414 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err42ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 133 remaining) [2024-01-27 14:46:47,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-01-27 14:46:47,414 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1] [2024-01-27 14:46:47,418 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2024-01-27 14:46:47,418 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-27 14:46:47,431 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2024-01-27 14:46:47,437 INFO L503 ceAbstractionStarter]: Automizer considered 43 witness invariants [2024-01-27 14:46:47,437 INFO L504 ceAbstractionStarter]: WitnessConsidered=43 [2024-01-27 14:46:47,437 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 02:46:47 BasicIcfg [2024-01-27 14:46:47,438 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-27 14:46:47,438 INFO L158 Benchmark]: Toolchain (without parser) took 7149.93ms. Allocated memory was 153.1MB in the beginning and 578.8MB in the end (delta: 425.7MB). Free memory was 79.8MB in the beginning and 456.1MB in the end (delta: -376.3MB). Peak memory consumption was 249.7MB. Max. memory is 16.1GB. [2024-01-27 14:46:47,438 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 115.3MB. Free memory is still 76.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 14:46:47,438 INFO L158 Benchmark]: Witness Parser took 0.14ms. Allocated memory is still 153.1MB. Free memory is still 84.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 14:46:47,438 INFO L158 Benchmark]: CACSL2BoogieTranslator took 581.86ms. Allocated memory is still 153.1MB. Free memory was 79.6MB in the beginning and 110.1MB in the end (delta: -30.5MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. [2024-01-27 14:46:47,439 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.24ms. Allocated memory is still 153.1MB. Free memory was 110.1MB in the beginning and 107.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-01-27 14:46:47,439 INFO L158 Benchmark]: Boogie Preprocessor took 67.18ms. Allocated memory is still 153.1MB. Free memory was 107.0MB in the beginning and 104.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-27 14:46:47,439 INFO L158 Benchmark]: RCFGBuilder took 575.83ms. Allocated memory is still 153.1MB. Free memory was 104.4MB in the beginning and 64.5MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2024-01-27 14:46:47,439 INFO L158 Benchmark]: TraceAbstraction took 5856.92ms. Allocated memory was 153.1MB in the beginning and 578.8MB in the end (delta: 425.7MB). Free memory was 63.6MB in the beginning and 456.1MB in the end (delta: -392.6MB). Peak memory consumption was 232.4MB. Max. memory is 16.1GB. [2024-01-27 14:46:47,440 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 115.3MB. Free memory is still 76.3MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.14ms. Allocated memory is still 153.1MB. Free memory is still 84.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 581.86ms. Allocated memory is still 153.1MB. Free memory was 79.6MB in the beginning and 110.1MB in the end (delta: -30.5MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.24ms. Allocated memory is still 153.1MB. Free memory was 110.1MB in the beginning and 107.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.18ms. Allocated memory is still 153.1MB. Free memory was 107.0MB in the beginning and 104.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 575.83ms. Allocated memory is still 153.1MB. Free memory was 104.4MB in the beginning and 64.5MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * TraceAbstraction took 5856.92ms. Allocated memory was 153.1MB in the beginning and 578.8MB in the end (delta: 425.7MB). Free memory was 63.6MB in the beginning and 456.1MB in the end (delta: -392.6MB). Peak memory consumption was 232.4MB. 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[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] VAL [arg={0:0}, arg={0:0}, m=0, max=-2147483648, offset=2147483647, storage={3:0}] [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: 2.2s, OverallIterations: 5, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 40 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 34 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 217 IncrementalHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 1 mSDtfsCounter, 217 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, 0.4s InterpolantComputationTime, 75 NumberOfCodeBlocks, 71 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 71 ConstructedInterpolants, 0 QuantifiedInterpolants, 137 SizeOfPredicates, 2 NumberOfNonLiveVariables, 281 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 9 InterpolantComputations, 2 PerfectInterpolantSequences, 16/59 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 301 locations, 133 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.4s, OverallIterations: 5, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 72 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 65 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 305 IncrementalHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 0 mSDtfsCounter, 305 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 62 GetRequests, 37 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, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 78 NumberOfCodeBlocks, 74 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 74 ConstructedInterpolants, 0 QuantifiedInterpolants, 140 SizeOfPredicates, 2 NumberOfNonLiveVariables, 282 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! [2024-01-27 14:46:47,466 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE