./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 cb09d658 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-cb09d65-m [2024-01-27 23:02:04,076 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-27 23:02:04,143 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-27 23:02:04,147 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-27 23:02:04,147 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-27 23:02:04,173 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-27 23:02:04,174 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-27 23:02:04,174 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-27 23:02:04,174 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-27 23:02:04,178 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-27 23:02:04,178 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-27 23:02:04,178 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-27 23:02:04,179 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-27 23:02:04,180 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-27 23:02:04,180 INFO L153 SettingsManager]: * Use SBE=true [2024-01-27 23:02:04,180 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-27 23:02:04,181 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-27 23:02:04,181 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-27 23:02:04,181 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-27 23:02:04,181 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-27 23:02:04,181 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-27 23:02:04,182 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-27 23:02:04,182 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-27 23:02:04,182 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-27 23:02:04,182 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-27 23:02:04,183 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-27 23:02:04,183 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-27 23:02:04,183 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-27 23:02:04,183 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-27 23:02:04,184 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-27 23:02:04,184 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-27 23:02:04,185 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-27 23:02:04,185 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 23:02:04,185 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-27 23:02:04,185 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-27 23:02:04,185 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-27 23:02:04,186 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-27 23:02:04,186 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-27 23:02:04,186 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-27 23:02:04,186 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-27 23:02:04,186 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-27 23:02:04,187 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-27 23:02:04,187 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-27 23:02:04,187 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-27 23:02:04,406 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-27 23:02:04,421 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-27 23:02:04,423 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-27 23:02:04,424 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-27 23:02:04,425 INFO L274 PluginConnector]: CDTParser initialized [2024-01-27 23:02:04,425 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/09_fmaxsym.i [2024-01-27 23:02:05,582 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-27 23:02:05,800 INFO L384 CDTParser]: Found 1 translation units. [2024-01-27 23:02:05,800 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/09_fmaxsym.i [2024-01-27 23:02:05,811 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5383bf2dd/4670c8bf168549b7865c619745de935d/FLAG9711fb524 [2024-01-27 23:02:05,822 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5383bf2dd/4670c8bf168549b7865c619745de935d [2024-01-27 23:02:05,824 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-27 23:02:05,824 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-27 23:02:05,825 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/09_fmaxsym.yml/witness.yml [2024-01-27 23:02:05,937 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-27 23:02:05,938 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-27 23:02:05,939 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-27 23:02:05,939 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-27 23:02:05,943 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-27 23:02:05,944 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 11:02:05" (1/2) ... [2024-01-27 23:02:05,944 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41bffd5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:02:05, skipping insertion in model container [2024-01-27 23:02:05,945 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 11:02:05" (1/2) ... [2024-01-27 23:02:05,946 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7f7d4ecd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:02:05, skipping insertion in model container [2024-01-27 23:02:05,946 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 11:02:05" (2/2) ... [2024-01-27 23:02:05,946 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41bffd5d and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:02:05, skipping insertion in model container [2024-01-27 23:02:05,946 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 11:02:05" (2/2) ... [2024-01-27 23:02:05,946 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-27 23:02:05,993 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-27 23:02:05,995 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 23:02:05,995 INFO L98 nessWitnessExtractor]: Location invariant after [L695-L699] (int )m == 0 [2024-01-27 23:02:05,995 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] e == 0 [2024-01-27 23:02:05,995 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] i <= 2147483646 [2024-01-27 23:02:05,995 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 23:02:05,996 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] offset <= 2147483645 [2024-01-27 23:02:05,996 INFO L98 nessWitnessExtractor]: Location invariant before [L716-L716] i <= 2147483646 [2024-01-27 23:02:05,996 INFO L98 nessWitnessExtractor]: Location invariant before [L716-L716] e == 0 [2024-01-27 23:02:05,996 INFO L98 nessWitnessExtractor]: Location invariant before [L716-L716] offset <= 2147483645 [2024-01-27 23:02:05,996 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 23:02:05,997 INFO L98 nessWitnessExtractor]: Location invariant before [L709-L711] i <= 2147483646 [2024-01-27 23:02:05,997 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 23:02:05,997 INFO L98 nessWitnessExtractor]: Location invariant before [L709-L711] e == 0 [2024-01-27 23:02:05,997 INFO L98 nessWitnessExtractor]: Location invariant before [L709-L711] offset <= 2147483645 [2024-01-27 23:02:05,997 INFO L98 nessWitnessExtractor]: Location invariant before [L720-L720] (unsigned long )arg == 0UL [2024-01-27 23:02:05,997 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] e == 0 [2024-01-27 23:02:05,997 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] i <= 2147483646 [2024-01-27 23:02:05,997 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] i <= 2147483646 [2024-01-27 23:02:05,998 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] offset <= 2147483645 [2024-01-27 23:02:05,998 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] offset <= 2147483645 [2024-01-27 23:02:05,998 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] e == 0 [2024-01-27 23:02:05,998 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 23:02:05,999 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 23:02:05,999 INFO L98 nessWitnessExtractor]: Location invariant after [L690-L694] (int )m == 1 [2024-01-27 23:02:05,999 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 23:02:05,999 INFO L98 nessWitnessExtractor]: Location invariant before [L706-L706] offset <= 2147483645 [2024-01-27 23:02:05,999 INFO L98 nessWitnessExtractor]: Location invariant before [L706-L706] i <= 2147483646 [2024-01-27 23:02:05,999 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 23:02:05,999 INFO L98 nessWitnessExtractor]: Location invariant before [L713-L713] e == 0 [2024-01-27 23:02:06,000 INFO L98 nessWitnessExtractor]: Location invariant before [L713-L713] i <= 2147483646 [2024-01-27 23:02:06,000 INFO L98 nessWitnessExtractor]: Location invariant before [L713-L713] offset <= 2147483645 [2024-01-27 23:02:06,000 INFO L98 nessWitnessExtractor]: Location invariant before [L722-L722] (unsigned long )arg == 0UL [2024-01-27 23:02:06,000 INFO L98 nessWitnessExtractor]: Location invariant after [L701-L718] offset <= 2147483645 [2024-01-27 23:02:06,000 INFO L98 nessWitnessExtractor]: Location invariant after [L701-L718] (2LL - (long long )i) + (long long )offset >= 0LL [2024-01-27 23:02:06,000 INFO L98 nessWitnessExtractor]: Location invariant after [L701-L718] e == 0 [2024-01-27 23:02:06,001 INFO L98 nessWitnessExtractor]: Location invariant after [L701-L718] -2147483646 <= i [2024-01-27 23:02:06,001 INFO L98 nessWitnessExtractor]: Location invariant after [L701-L718] (-2LL + (long long )i) - (long long )offset >= 0LL [2024-01-27 23:02:06,001 INFO L98 nessWitnessExtractor]: Location invariant before [L710-L710] offset <= 2147483645 [2024-01-27 23:02:06,002 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 23:02:06,002 INFO L98 nessWitnessExtractor]: Location invariant before [L710-L710] e == 0 [2024-01-27 23:02:06,002 INFO L98 nessWitnessExtractor]: Location invariant before [L710-L710] i <= 2147483646 [2024-01-27 23:02:06,002 INFO L98 nessWitnessExtractor]: Location invariant before [L723-L723] (unsigned long )arg == 0UL [2024-01-27 23:02:06,002 INFO L98 nessWitnessExtractor]: Location invariant before [L714-L714] e == 0 [2024-01-27 23:02:06,003 INFO L98 nessWitnessExtractor]: Location invariant before [L714-L714] offset <= 2147483645 [2024-01-27 23:02:06,003 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 23:02:06,003 INFO L98 nessWitnessExtractor]: Location invariant before [L714-L714] i <= 2147483646 [2024-01-27 23:02:06,003 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] i <= 2147483646 [2024-01-27 23:02:06,003 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] offset <= 2147483645 [2024-01-27 23:02:06,004 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] e == 0 [2024-01-27 23:02:06,004 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 23:02:06,004 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 23:02:06,004 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] e == 0 [2024-01-27 23:02:06,004 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] offset <= 2147483645 [2024-01-27 23:02:06,005 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] i <= 2147483646 [2024-01-27 23:02:06,005 INFO L98 nessWitnessExtractor]: Location invariant before [L721-L721] (unsigned long )arg == 0UL [2024-01-27 23:02:06,005 INFO L98 nessWitnessExtractor]: Location invariant before [L721-L721] offset % 2 == 0 [2024-01-27 23:02:06,005 INFO L98 nessWitnessExtractor]: Location invariant before [L721-L721] offset <= 2147483646 [2024-01-27 23:02:06,034 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-27 23:02:06,339 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 23:02:06,349 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 23:02:06,356 INFO L202 MainTranslator]: Completed pre-run [2024-01-27 23:02:06,392 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 23:02:06,394 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 23:02:06,427 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 23:02:06,431 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 23:02:06,437 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 23:02:06,442 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 23:02:06,465 INFO L206 MainTranslator]: Completed translation [2024-01-27 23:02:06,466 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:02:06 WrapperNode [2024-01-27 23:02:06,466 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-27 23:02:06,467 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-27 23:02:06,467 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-27 23:02:06,467 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-27 23:02:06,472 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 11:02:06" (1/1) ... [2024-01-27 23:02:06,482 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 11:02:06" (1/1) ... [2024-01-27 23:02:06,506 INFO L138 Inliner]: procedures = 171, calls = 27, calls flagged for inlining = 10, calls inlined = 12, statements flattened = 146 [2024-01-27 23:02:06,507 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-27 23:02:06,507 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-27 23:02:06,507 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-27 23:02:06,507 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-27 23:02:06,516 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 11:02:06" (1/1) ... [2024-01-27 23:02:06,516 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 11:02:06" (1/1) ... [2024-01-27 23:02:06,519 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 11:02:06" (1/1) ... [2024-01-27 23:02:06,541 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 23:02:06,541 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 11:02:06" (1/1) ... [2024-01-27 23:02:06,541 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 11:02:06" (1/1) ... [2024-01-27 23:02:06,549 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 11:02:06" (1/1) ... [2024-01-27 23:02:06,552 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 11:02:06" (1/1) ... [2024-01-27 23:02:06,554 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 11:02:06" (1/1) ... [2024-01-27 23:02:06,555 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 11:02:06" (1/1) ... [2024-01-27 23:02:06,571 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-27 23:02:06,578 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-27 23:02:06,578 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-27 23:02:06,578 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-27 23:02:06,579 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 11:02:06" (1/1) ... [2024-01-27 23:02:06,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 23:02:06,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 23:02:06,619 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 23:02:06,625 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 23:02:06,649 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-27 23:02:06,650 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-27 23:02:06,650 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-27 23:02:06,650 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-01-27 23:02:06,650 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-01-27 23:02:06,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-27 23:02:06,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-27 23:02:06,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-27 23:02:06,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-27 23:02:06,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-27 23:02:06,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-27 23:02:06,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-27 23:02:06,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-27 23:02:06,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-27 23:02:06,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-27 23:02:06,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-27 23:02:06,654 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 23:02:06,792 INFO L244 CfgBuilder]: Building ICFG [2024-01-27 23:02:06,793 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-27 23:02:07,047 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-27 23:02:07,048 INFO L293 CfgBuilder]: Performing block encoding [2024-01-27 23:02:07,130 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-27 23:02:07,131 INFO L320 CfgBuilder]: Removed 3 assume(true) statements. [2024-01-27 23:02:07,131 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 11:02:07 BoogieIcfgContainer [2024-01-27 23:02:07,132 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-27 23:02:07,134 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-27 23:02:07,134 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-27 23:02:07,137 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-27 23:02:07,137 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 11:02:05" (1/4) ... [2024-01-27 23:02:07,138 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@197bc7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 11:02:07, skipping insertion in model container [2024-01-27 23:02:07,138 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 11:02:05" (2/4) ... [2024-01-27 23:02:07,138 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@197bc7f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.01 11:02:07, skipping insertion in model container [2024-01-27 23:02:07,138 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 11:02:06" (3/4) ... [2024-01-27 23:02:07,139 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@197bc7f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.01 11:02:07, skipping insertion in model container [2024-01-27 23:02:07,139 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 11:02:07" (4/4) ... [2024-01-27 23:02:07,140 INFO L112 eAbstractionObserver]: Analyzing ICFG 09_fmaxsym.i [2024-01-27 23:02:07,153 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-27 23:02:07,154 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2024-01-27 23:02:07,154 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-27 23:02:07,255 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-27 23:02:07,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 107 places, 108 transitions, 220 flow [2024-01-27 23:02:07,339 INFO L124 PetriNetUnfolderBase]: 4/110 cut-off events. [2024-01-27 23:02:07,339 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 23:02:07,342 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 23:02:07,343 INFO L82 GeneralOperation]: Start removeDead. Operand has 107 places, 108 transitions, 220 flow [2024-01-27 23:02:07,347 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 107 places, 108 transitions, 220 flow [2024-01-27 23:02:07,361 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-27 23:02:07,376 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;@383e0ce2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-27 23:02:07,377 INFO L358 AbstractCegarLoop]: Starting to check reachability of 89 error locations. [2024-01-27 23:02:07,382 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-27 23:02:07,382 INFO L124 PetriNetUnfolderBase]: 1/8 cut-off events. [2024-01-27 23:02:07,383 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 23:02:07,383 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:02:07,384 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-27 23:02:07,385 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 86 more)] === [2024-01-27 23:02:07,389 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:02:07,390 INFO L85 PathProgramCache]: Analyzing trace with hash -401718454, now seen corresponding path program 1 times [2024-01-27 23:02:07,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:02:07,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797426046] [2024-01-27 23:02:07,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:02:07,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:02:07,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:02:07,631 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 23:02:07,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:02:07,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797426046] [2024-01-27 23:02:07,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797426046] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:02:07,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:02:07,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-27 23:02:07,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844342076] [2024-01-27 23:02:07,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:02:07,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 23:02:07,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:02:07,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 23:02:07,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 23:02:07,671 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 108 [2024-01-27 23:02:07,674 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 23:02:07,675 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:02:07,675 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 108 [2024-01-27 23:02:07,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:02:07,787 INFO L124 PetriNetUnfolderBase]: 29/314 cut-off events. [2024-01-27 23:02:07,787 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 23:02:07,789 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 23:02:07,794 INFO L140 encePairwiseOnDemand]: 103/108 looper letters, 17 selfloop transitions, 2 changer transitions 0/107 dead transitions. [2024-01-27 23:02:07,794 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 107 transitions, 256 flow [2024-01-27 23:02:07,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 23:02:07,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 23:02:07,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2024-01-27 23:02:07,815 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8827160493827161 [2024-01-27 23:02:07,817 INFO L175 Difference]: Start difference. First operand has 107 places, 108 transitions, 220 flow. Second operand 3 states and 286 transitions. [2024-01-27 23:02:07,818 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 107 transitions, 256 flow [2024-01-27 23:02:07,821 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 23:02:07,823 INFO L231 Difference]: Finished difference. Result has 109 places, 107 transitions, 228 flow [2024-01-27 23:02:07,825 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 23:02:07,828 INFO L281 CegarLoopForPetriNet]: 107 programPoint places, 2 predicate places. [2024-01-27 23:02:07,828 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 107 transitions, 228 flow [2024-01-27 23:02:07,828 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 23:02:07,828 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:02:07,828 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-01-27 23:02:07,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-27 23:02:07,829 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 86 more)] === [2024-01-27 23:02:07,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:02:07,830 INFO L85 PathProgramCache]: Analyzing trace with hash 405421874, now seen corresponding path program 1 times [2024-01-27 23:02:07,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:02:07,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187690918] [2024-01-27 23:02:07,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:02:07,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:02:07,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:02:07,939 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 23:02:07,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:02:07,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187690918] [2024-01-27 23:02:07,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187690918] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-27 23:02:07,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2128042935] [2024-01-27 23:02:07,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:02:07,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-27 23:02:07,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 23:02:07,942 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 23:02:07,946 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 23:02:08,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:02:08,006 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 3 conjunts are in the unsatisfiable core [2024-01-27 23:02:08,009 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-27 23:02:08,043 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 23:02:08,043 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-27 23:02:08,058 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 23:02:08,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2128042935] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-27 23:02:08,060 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-27 23:02:08,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-01-27 23:02:08,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227793177] [2024-01-27 23:02:08,061 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-27 23:02:08,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-01-27 23:02:08,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:02:08,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-01-27 23:02:08,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-01-27 23:02:08,063 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 108 [2024-01-27 23:02:08,065 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 23:02:08,065 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:02:08,065 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 108 [2024-01-27 23:02:08,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:02:08,201 INFO L124 PetriNetUnfolderBase]: 29/317 cut-off events. [2024-01-27 23:02:08,201 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 23:02:08,205 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 23:02:08,206 INFO L140 encePairwiseOnDemand]: 105/108 looper letters, 17 selfloop transitions, 5 changer transitions 0/110 dead transitions. [2024-01-27 23:02:08,207 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 110 transitions, 284 flow [2024-01-27 23:02:08,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-01-27 23:02:08,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-01-27 23:02:08,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 553 transitions. [2024-01-27 23:02:08,226 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8533950617283951 [2024-01-27 23:02:08,226 INFO L175 Difference]: Start difference. First operand has 109 places, 107 transitions, 228 flow. Second operand 6 states and 553 transitions. [2024-01-27 23:02:08,227 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 110 transitions, 284 flow [2024-01-27 23:02:08,228 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 23:02:08,230 INFO L231 Difference]: Finished difference. Result has 116 places, 110 transitions, 260 flow [2024-01-27 23:02:08,230 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 23:02:08,231 INFO L281 CegarLoopForPetriNet]: 107 programPoint places, 9 predicate places. [2024-01-27 23:02:08,232 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 110 transitions, 260 flow [2024-01-27 23:02:08,232 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 23:02:08,232 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:02:08,232 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1] [2024-01-27 23:02:08,244 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 23:02:08,444 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 23:02:08,444 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 86 more)] === [2024-01-27 23:02:08,444 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:02:08,445 INFO L85 PathProgramCache]: Analyzing trace with hash 220331338, now seen corresponding path program 2 times [2024-01-27 23:02:08,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:02:08,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852400072] [2024-01-27 23:02:08,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:02:08,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:02:08,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:02:08,556 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 23:02:08,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:02:08,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852400072] [2024-01-27 23:02:08,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852400072] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-27 23:02:08,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1843461228] [2024-01-27 23:02:08,557 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-01-27 23:02:08,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-27 23:02:08,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 23:02:08,558 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 23:02:08,583 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 23:02:08,619 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-01-27 23:02:08,619 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-01-27 23:02:08,620 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 9 conjunts are in the unsatisfiable core [2024-01-27 23:02:08,621 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-27 23:02:08,648 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 23:02:08,648 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-01-27 23:02:08,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1843461228] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:02:08,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-01-27 23:02:08,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2024-01-27 23:02:08,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779081708] [2024-01-27 23:02:08,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:02:08,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 23:02:08,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:02:08,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 23:02:08,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-01-27 23:02:08,654 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 108 [2024-01-27 23:02:08,655 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 23:02:08,655 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:02:08,655 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 108 [2024-01-27 23:02:08,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:02:08,716 INFO L124 PetriNetUnfolderBase]: 31/321 cut-off events. [2024-01-27 23:02:08,716 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-27 23:02:08,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 423 conditions, 321 events. 31/321 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1218 event pairs, 0 based on Foata normal form. 0/204 useless extension candidates. Maximal degree in co-relation 389. Up to 63 conditions per place. [2024-01-27 23:02:08,718 INFO L140 encePairwiseOnDemand]: 102/108 looper letters, 24 selfloop transitions, 2 changer transitions 0/109 dead transitions. [2024-01-27 23:02:08,718 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 109 transitions, 310 flow [2024-01-27 23:02:08,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 23:02:08,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 23:02:08,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 358 transitions. [2024-01-27 23:02:08,719 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8287037037037037 [2024-01-27 23:02:08,719 INFO L175 Difference]: Start difference. First operand has 116 places, 110 transitions, 260 flow. Second operand 4 states and 358 transitions. [2024-01-27 23:02:08,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 109 transitions, 310 flow [2024-01-27 23:02:08,720 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 23:02:08,721 INFO L231 Difference]: Finished difference. Result has 114 places, 106 transitions, 242 flow [2024-01-27 23:02:08,722 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 23:02:08,722 INFO L281 CegarLoopForPetriNet]: 107 programPoint places, 7 predicate places. [2024-01-27 23:02:08,722 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 106 transitions, 242 flow [2024-01-27 23:02:08,723 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 23:02:08,723 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:02:08,723 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 2, 1, 1, 1, 1, 1] [2024-01-27 23:02:08,754 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 23:02:08,934 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 23:02:08,934 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 23:02:08,935 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:02:08,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1759705064, now seen corresponding path program 1 times [2024-01-27 23:02:08,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:02:08,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780516776] [2024-01-27 23:02:08,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:02:08,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:02:08,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:02:09,032 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 23:02:09,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:02:09,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780516776] [2024-01-27 23:02:09,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780516776] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-27 23:02:09,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [857803875] [2024-01-27 23:02:09,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:02:09,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-27 23:02:09,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 23:02:09,045 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 23:02:09,074 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 23:02:09,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:02:09,109 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 6 conjunts are in the unsatisfiable core [2024-01-27 23:02:09,110 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-27 23:02:09,121 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 23:02:09,122 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-27 23:02:09,156 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 23:02:09,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [857803875] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-27 23:02:09,156 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-27 23:02:09,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 8 [2024-01-27 23:02:09,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582768485] [2024-01-27 23:02:09,157 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-27 23:02:09,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-01-27 23:02:09,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:02:09,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-01-27 23:02:09,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2024-01-27 23:02:09,159 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 108 [2024-01-27 23:02:09,160 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 23:02:09,164 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:02:09,164 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 108 [2024-01-27 23:02:09,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:02:09,240 INFO L124 PetriNetUnfolderBase]: 29/313 cut-off events. [2024-01-27 23:02:09,240 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-01-27 23:02:09,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 412 conditions, 313 events. 29/313 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1195 event pairs, 22 based on Foata normal form. 2/200 useless extension candidates. Maximal degree in co-relation 376. Up to 66 conditions per place. [2024-01-27 23:02:09,242 INFO L140 encePairwiseOnDemand]: 105/108 looper letters, 17 selfloop transitions, 7 changer transitions 0/108 dead transitions. [2024-01-27 23:02:09,242 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 108 transitions, 302 flow [2024-01-27 23:02:09,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-01-27 23:02:09,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-01-27 23:02:09,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 730 transitions. [2024-01-27 23:02:09,244 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8449074074074074 [2024-01-27 23:02:09,244 INFO L175 Difference]: Start difference. First operand has 114 places, 106 transitions, 242 flow. Second operand 8 states and 730 transitions. [2024-01-27 23:02:09,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 108 transitions, 302 flow [2024-01-27 23:02:09,246 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 23:02:09,247 INFO L231 Difference]: Finished difference. Result has 121 places, 108 transitions, 275 flow [2024-01-27 23:02:09,247 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 23:02:09,249 INFO L281 CegarLoopForPetriNet]: 107 programPoint places, 14 predicate places. [2024-01-27 23:02:09,249 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 108 transitions, 275 flow [2024-01-27 23:02:09,250 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 23:02:09,250 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:02:09,250 INFO L208 CegarLoopForPetriNet]: trace histogram [6, 2, 1, 1, 1, 1, 1] [2024-01-27 23:02:09,261 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 23:02:09,460 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 23:02:09,461 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 23:02:09,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:02:09,462 INFO L85 PathProgramCache]: Analyzing trace with hash 952347416, now seen corresponding path program 2 times [2024-01-27 23:02:09,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:02:09,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215410340] [2024-01-27 23:02:09,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:02:09,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:02:09,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 23:02:09,493 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-27 23:02:09,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 23:02:09,526 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-27 23:02:09,528 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-27 23:02:09,529 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (88 of 89 remaining) [2024-01-27 23:02:09,530 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (87 of 89 remaining) [2024-01-27 23:02:09,530 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (86 of 89 remaining) [2024-01-27 23:02:09,531 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (85 of 89 remaining) [2024-01-27 23:02:09,531 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (84 of 89 remaining) [2024-01-27 23:02:09,534 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (83 of 89 remaining) [2024-01-27 23:02:09,535 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (82 of 89 remaining) [2024-01-27 23:02:09,535 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (81 of 89 remaining) [2024-01-27 23:02:09,535 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err43ASSERT_VIOLATIONWITNESS_INVARIANT (80 of 89 remaining) [2024-01-27 23:02:09,535 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (79 of 89 remaining) [2024-01-27 23:02:09,535 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (78 of 89 remaining) [2024-01-27 23:02:09,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (77 of 89 remaining) [2024-01-27 23:02:09,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (76 of 89 remaining) [2024-01-27 23:02:09,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (75 of 89 remaining) [2024-01-27 23:02:09,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (74 of 89 remaining) [2024-01-27 23:02:09,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (73 of 89 remaining) [2024-01-27 23:02:09,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (72 of 89 remaining) [2024-01-27 23:02:09,537 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (71 of 89 remaining) [2024-01-27 23:02:09,537 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (70 of 89 remaining) [2024-01-27 23:02:09,537 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (69 of 89 remaining) [2024-01-27 23:02:09,537 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (68 of 89 remaining) [2024-01-27 23:02:09,537 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (67 of 89 remaining) [2024-01-27 23:02:09,538 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (66 of 89 remaining) [2024-01-27 23:02:09,538 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (65 of 89 remaining) [2024-01-27 23:02:09,538 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (64 of 89 remaining) [2024-01-27 23:02:09,538 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (63 of 89 remaining) [2024-01-27 23:02:09,538 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (62 of 89 remaining) [2024-01-27 23:02:09,538 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (61 of 89 remaining) [2024-01-27 23:02:09,539 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONWITNESS_INVARIANT (60 of 89 remaining) [2024-01-27 23:02:09,539 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONWITNESS_INVARIANT (59 of 89 remaining) [2024-01-27 23:02:09,539 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 89 remaining) [2024-01-27 23:02:09,539 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 89 remaining) [2024-01-27 23:02:09,539 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 89 remaining) [2024-01-27 23:02:09,539 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 89 remaining) [2024-01-27 23:02:09,540 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err32ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 89 remaining) [2024-01-27 23:02:09,540 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err33ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 89 remaining) [2024-01-27 23:02:09,541 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err34ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 89 remaining) [2024-01-27 23:02:09,541 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err35ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 89 remaining) [2024-01-27 23:02:09,541 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err36ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 89 remaining) [2024-01-27 23:02:09,541 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err37ASSERT_VIOLATIONERROR_FUNCTION (49 of 89 remaining) [2024-01-27 23:02:09,541 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err38ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 89 remaining) [2024-01-27 23:02:09,541 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err39ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 89 remaining) [2024-01-27 23:02:09,542 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err40ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 89 remaining) [2024-01-27 23:02:09,542 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err41ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 89 remaining) [2024-01-27 23:02:09,542 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err42ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 89 remaining) [2024-01-27 23:02:09,542 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 89 remaining) [2024-01-27 23:02:09,542 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 89 remaining) [2024-01-27 23:02:09,542 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 89 remaining) [2024-01-27 23:02:09,543 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 89 remaining) [2024-01-27 23:02:09,544 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 89 remaining) [2024-01-27 23:02:09,544 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 89 remaining) [2024-01-27 23:02:09,544 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 89 remaining) [2024-01-27 23:02:09,544 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err43ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 89 remaining) [2024-01-27 23:02:09,545 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 89 remaining) [2024-01-27 23:02:09,546 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 89 remaining) [2024-01-27 23:02:09,546 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 89 remaining) [2024-01-27 23:02:09,546 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 89 remaining) [2024-01-27 23:02:09,546 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 89 remaining) [2024-01-27 23:02:09,546 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 89 remaining) [2024-01-27 23:02:09,546 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 89 remaining) [2024-01-27 23:02:09,547 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 89 remaining) [2024-01-27 23:02:09,547 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 89 remaining) [2024-01-27 23:02:09,547 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 89 remaining) [2024-01-27 23:02:09,547 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 89 remaining) [2024-01-27 23:02:09,547 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 89 remaining) [2024-01-27 23:02:09,548 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 89 remaining) [2024-01-27 23:02:09,548 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 89 remaining) [2024-01-27 23:02:09,548 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 89 remaining) [2024-01-27 23:02:09,548 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 89 remaining) [2024-01-27 23:02:09,548 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 89 remaining) [2024-01-27 23:02:09,549 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 89 remaining) [2024-01-27 23:02:09,549 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 89 remaining) [2024-01-27 23:02:09,549 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 89 remaining) [2024-01-27 23:02:09,549 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 89 remaining) [2024-01-27 23:02:09,549 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 89 remaining) [2024-01-27 23:02:09,549 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 89 remaining) [2024-01-27 23:02:09,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 89 remaining) [2024-01-27 23:02:09,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 89 remaining) [2024-01-27 23:02:09,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err32ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 89 remaining) [2024-01-27 23:02:09,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err33ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 89 remaining) [2024-01-27 23:02:09,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err34ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 89 remaining) [2024-01-27 23:02:09,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err35ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 89 remaining) [2024-01-27 23:02:09,551 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err36ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 89 remaining) [2024-01-27 23:02:09,553 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err37ASSERT_VIOLATIONERROR_FUNCTION (5 of 89 remaining) [2024-01-27 23:02:09,553 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err38ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 89 remaining) [2024-01-27 23:02:09,554 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err39ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 89 remaining) [2024-01-27 23:02:09,554 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err40ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 89 remaining) [2024-01-27 23:02:09,554 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err41ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 89 remaining) [2024-01-27 23:02:09,554 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err42ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 89 remaining) [2024-01-27 23:02:09,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-27 23:02:09,555 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1] [2024-01-27 23:02:09,559 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-01-27 23:02:09,559 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-01-27 23:02:09,619 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-27 23:02:09,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 207 places, 209 transitions, 428 flow [2024-01-27 23:02:09,645 INFO L124 PetriNetUnfolderBase]: 7/214 cut-off events. [2024-01-27 23:02:09,645 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-27 23:02:09,647 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 23:02:09,647 INFO L82 GeneralOperation]: Start removeDead. Operand has 207 places, 209 transitions, 428 flow [2024-01-27 23:02:09,650 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 207 places, 209 transitions, 428 flow [2024-01-27 23:02:09,651 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-27 23:02:09,653 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;@383e0ce2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-27 23:02:09,653 INFO L358 AbstractCegarLoop]: Starting to check reachability of 133 error locations. [2024-01-27 23:02:09,655 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-27 23:02:09,655 INFO L124 PetriNetUnfolderBase]: 1/8 cut-off events. [2024-01-27 23:02:09,655 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 23:02:09,655 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:02:09,655 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-27 23:02:09,655 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 130 more)] === [2024-01-27 23:02:09,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:02:09,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1486355854, now seen corresponding path program 1 times [2024-01-27 23:02:09,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:02:09,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753928746] [2024-01-27 23:02:09,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:02:09,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:02:09,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:02:09,696 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 23:02:09,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:02:09,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753928746] [2024-01-27 23:02:09,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753928746] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:02:09,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:02:09,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-27 23:02:09,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929525936] [2024-01-27 23:02:09,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:02:09,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 23:02:09,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:02:09,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 23:02:09,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 23:02:09,699 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 209 [2024-01-27 23:02:09,699 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 23:02:09,700 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:02:09,700 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 209 [2024-01-27 23:02:09,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:02:10,210 INFO L124 PetriNetUnfolderBase]: 927/5292 cut-off events. [2024-01-27 23:02:10,210 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-01-27 23:02:10,220 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 23:02:10,248 INFO L140 encePairwiseOnDemand]: 203/209 looper letters, 30 selfloop transitions, 2 changer transitions 0/207 dead transitions. [2024-01-27 23:02:10,248 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 207 transitions, 488 flow [2024-01-27 23:02:10,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 23:02:10,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 23:02:10,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 561 transitions. [2024-01-27 23:02:10,250 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8947368421052632 [2024-01-27 23:02:10,250 INFO L175 Difference]: Start difference. First operand has 207 places, 209 transitions, 428 flow. Second operand 3 states and 561 transitions. [2024-01-27 23:02:10,250 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 207 transitions, 488 flow [2024-01-27 23:02:10,251 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 23:02:10,253 INFO L231 Difference]: Finished difference. Result has 209 places, 207 transitions, 434 flow [2024-01-27 23:02:10,254 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 23:02:10,256 INFO L281 CegarLoopForPetriNet]: 207 programPoint places, 2 predicate places. [2024-01-27 23:02:10,256 INFO L495 AbstractCegarLoop]: Abstraction has has 209 places, 207 transitions, 434 flow [2024-01-27 23:02:10,257 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 23:02:10,257 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:02:10,257 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-01-27 23:02:10,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-27 23:02:10,257 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 130 more)] === [2024-01-27 23:02:10,257 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:02:10,258 INFO L85 PathProgramCache]: Analyzing trace with hash -1196795513, now seen corresponding path program 1 times [2024-01-27 23:02:10,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:02:10,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150305995] [2024-01-27 23:02:10,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:02:10,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:02:10,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:02:10,296 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 23:02:10,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:02:10,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150305995] [2024-01-27 23:02:10,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150305995] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-27 23:02:10,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [251166140] [2024-01-27 23:02:10,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:02:10,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-27 23:02:10,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 23:02:10,430 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 23:02:10,431 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 23:02:10,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:02:10,508 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 3 conjunts are in the unsatisfiable core [2024-01-27 23:02:10,509 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-27 23:02:10,517 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 23:02:10,517 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-27 23:02:10,528 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 23:02:10,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [251166140] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-27 23:02:10,528 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-27 23:02:10,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-01-27 23:02:10,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413129713] [2024-01-27 23:02:10,529 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-27 23:02:10,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-01-27 23:02:10,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:02:10,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-01-27 23:02:10,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-01-27 23:02:10,531 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 209 [2024-01-27 23:02:10,532 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 23:02:10,533 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:02:10,533 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 209 [2024-01-27 23:02:10,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:02:11,022 INFO L124 PetriNetUnfolderBase]: 927/5295 cut-off events. [2024-01-27 23:02:11,022 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-01-27 23:02:11,031 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 23:02:11,083 INFO L140 encePairwiseOnDemand]: 206/209 looper letters, 30 selfloop transitions, 5 changer transitions 0/210 dead transitions. [2024-01-27 23:02:11,084 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 210 transitions, 516 flow [2024-01-27 23:02:11,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-01-27 23:02:11,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-01-27 23:02:11,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1088 transitions. [2024-01-27 23:02:11,086 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8676236044657097 [2024-01-27 23:02:11,086 INFO L175 Difference]: Start difference. First operand has 209 places, 207 transitions, 434 flow. Second operand 6 states and 1088 transitions. [2024-01-27 23:02:11,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 210 transitions, 516 flow [2024-01-27 23:02:11,087 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 23:02:11,089 INFO L231 Difference]: Finished difference. Result has 216 places, 210 transitions, 466 flow [2024-01-27 23:02:11,089 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 23:02:11,090 INFO L281 CegarLoopForPetriNet]: 207 programPoint places, 9 predicate places. [2024-01-27 23:02:11,090 INFO L495 AbstractCegarLoop]: Abstraction has has 216 places, 210 transitions, 466 flow [2024-01-27 23:02:11,091 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 23:02:11,091 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:02:11,091 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1] [2024-01-27 23:02:11,106 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-01-27 23:02:11,306 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 23:02:11,306 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 130 more)] === [2024-01-27 23:02:11,308 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:02:11,308 INFO L85 PathProgramCache]: Analyzing trace with hash -129256498, now seen corresponding path program 2 times [2024-01-27 23:02:11,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:02:11,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959394] [2024-01-27 23:02:11,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:02:11,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:02:11,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:02:11,423 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 23:02:11,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:02:11,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959394] [2024-01-27 23:02:11,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959394] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-27 23:02:11,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [311624872] [2024-01-27 23:02:11,423 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-01-27 23:02:11,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-27 23:02:11,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 23:02:11,430 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 23:02:11,447 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 23:02:11,507 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-01-27 23:02:11,507 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-01-27 23:02:11,508 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 9 conjunts are in the unsatisfiable core [2024-01-27 23:02:11,509 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-27 23:02:11,530 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 23:02:11,530 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-01-27 23:02:11,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [311624872] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:02:11,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-01-27 23:02:11,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2024-01-27 23:02:11,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066080823] [2024-01-27 23:02:11,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:02:11,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 23:02:11,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:02:11,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 23:02:11,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-01-27 23:02:11,543 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 209 [2024-01-27 23:02:11,544 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 23:02:11,544 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:02:11,544 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 209 [2024-01-27 23:02:11,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:02:12,043 INFO L124 PetriNetUnfolderBase]: 988/5848 cut-off events. [2024-01-27 23:02:12,044 INFO L125 PetriNetUnfolderBase]: For 42/42 co-relation queries the response was YES. [2024-01-27 23:02:12,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7400 conditions, 5848 events. 988/5848 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 58038 event pairs, 409 based on Foata normal form. 0/3731 useless extension candidates. Maximal degree in co-relation 7365. Up to 1412 conditions per place. [2024-01-27 23:02:12,078 INFO L140 encePairwiseOnDemand]: 203/209 looper letters, 50 selfloop transitions, 2 changer transitions 0/222 dead transitions. [2024-01-27 23:02:12,079 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 222 transitions, 599 flow [2024-01-27 23:02:12,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 23:02:12,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 23:02:12,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 732 transitions. [2024-01-27 23:02:12,081 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8755980861244019 [2024-01-27 23:02:12,081 INFO L175 Difference]: Start difference. First operand has 216 places, 210 transitions, 466 flow. Second operand 4 states and 732 transitions. [2024-01-27 23:02:12,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 222 transitions, 599 flow [2024-01-27 23:02:12,083 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 23:02:12,085 INFO L231 Difference]: Finished difference. Result has 214 places, 206 transitions, 448 flow [2024-01-27 23:02:12,085 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 23:02:12,086 INFO L281 CegarLoopForPetriNet]: 207 programPoint places, 7 predicate places. [2024-01-27 23:02:12,086 INFO L495 AbstractCegarLoop]: Abstraction has has 214 places, 206 transitions, 448 flow [2024-01-27 23:02:12,086 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 23:02:12,086 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:02:12,086 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 23:02:12,112 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-01-27 23:02:12,298 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 23:02:12,299 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 130 more)] === [2024-01-27 23:02:12,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:02:12,299 INFO L85 PathProgramCache]: Analyzing trace with hash 288016683, now seen corresponding path program 1 times [2024-01-27 23:02:12,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:02:12,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008124139] [2024-01-27 23:02:12,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:02:12,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:02:12,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:02:12,348 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 23:02:12,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:02:12,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008124139] [2024-01-27 23:02:12,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008124139] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-27 23:02:12,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1836547987] [2024-01-27 23:02:12,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:02:12,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-27 23:02:12,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 23:02:12,365 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 23:02:12,405 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 23:02:12,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:02:12,466 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 6 conjunts are in the unsatisfiable core [2024-01-27 23:02:12,467 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-27 23:02:12,480 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 23:02:12,480 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-27 23:02:12,513 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 23:02:12,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1836547987] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-27 23:02:12,514 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-27 23:02:12,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 8 [2024-01-27 23:02:12,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320999688] [2024-01-27 23:02:12,514 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-27 23:02:12,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-01-27 23:02:12,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:02:12,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-01-27 23:02:12,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2024-01-27 23:02:12,516 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 209 [2024-01-27 23:02:12,518 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 23:02:12,518 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:02:12,518 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 209 [2024-01-27 23:02:12,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:02:13,037 INFO L124 PetriNetUnfolderBase]: 927/5282 cut-off events. [2024-01-27 23:02:13,038 INFO L125 PetriNetUnfolderBase]: For 53/53 co-relation queries the response was YES. [2024-01-27 23:02:13,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6742 conditions, 5282 events. 927/5282 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 51127 event pairs, 728 based on Foata normal form. 2/3364 useless extension candidates. Maximal degree in co-relation 6705. Up to 1390 conditions per place. [2024-01-27 23:02:13,074 INFO L140 encePairwiseOnDemand]: 206/209 looper letters, 30 selfloop transitions, 7 changer transitions 0/208 dead transitions. [2024-01-27 23:02:13,074 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 208 transitions, 534 flow [2024-01-27 23:02:13,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-01-27 23:02:13,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-01-27 23:02:13,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1439 transitions. [2024-01-27 23:02:13,077 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8606459330143541 [2024-01-27 23:02:13,077 INFO L175 Difference]: Start difference. First operand has 214 places, 206 transitions, 448 flow. Second operand 8 states and 1439 transitions. [2024-01-27 23:02:13,078 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 208 transitions, 534 flow [2024-01-27 23:02:13,079 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 23:02:13,081 INFO L231 Difference]: Finished difference. Result has 221 places, 208 transitions, 481 flow [2024-01-27 23:02:13,081 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 23:02:13,082 INFO L281 CegarLoopForPetriNet]: 207 programPoint places, 14 predicate places. [2024-01-27 23:02:13,082 INFO L495 AbstractCegarLoop]: Abstraction has has 221 places, 208 transitions, 481 flow [2024-01-27 23:02:13,083 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 23:02:13,083 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:02:13,083 INFO L208 CegarLoopForPetriNet]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 23:02:13,094 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 23:02:13,294 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 23:02:13,294 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 130 more)] === [2024-01-27 23:02:13,295 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:02:13,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1278099957, now seen corresponding path program 2 times [2024-01-27 23:02:13,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:02:13,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766623876] [2024-01-27 23:02:13,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:02:13,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:02:13,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 23:02:13,312 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-27 23:02:13,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 23:02:13,323 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-27 23:02:13,324 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-27 23:02:13,324 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (132 of 133 remaining) [2024-01-27 23:02:13,324 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (131 of 133 remaining) [2024-01-27 23:02:13,324 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (130 of 133 remaining) [2024-01-27 23:02:13,324 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (129 of 133 remaining) [2024-01-27 23:02:13,324 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (128 of 133 remaining) [2024-01-27 23:02:13,325 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (127 of 133 remaining) [2024-01-27 23:02:13,325 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (126 of 133 remaining) [2024-01-27 23:02:13,325 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (125 of 133 remaining) [2024-01-27 23:02:13,325 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err43ASSERT_VIOLATIONWITNESS_INVARIANT (124 of 133 remaining) [2024-01-27 23:02:13,325 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (123 of 133 remaining) [2024-01-27 23:02:13,325 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (122 of 133 remaining) [2024-01-27 23:02:13,325 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (121 of 133 remaining) [2024-01-27 23:02:13,326 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (120 of 133 remaining) [2024-01-27 23:02:13,326 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (119 of 133 remaining) [2024-01-27 23:02:13,326 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (118 of 133 remaining) [2024-01-27 23:02:13,326 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (117 of 133 remaining) [2024-01-27 23:02:13,326 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (116 of 133 remaining) [2024-01-27 23:02:13,326 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (115 of 133 remaining) [2024-01-27 23:02:13,326 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (114 of 133 remaining) [2024-01-27 23:02:13,327 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (113 of 133 remaining) [2024-01-27 23:02:13,327 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (112 of 133 remaining) [2024-01-27 23:02:13,327 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (111 of 133 remaining) [2024-01-27 23:02:13,327 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (110 of 133 remaining) [2024-01-27 23:02:13,327 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (109 of 133 remaining) [2024-01-27 23:02:13,327 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (108 of 133 remaining) [2024-01-27 23:02:13,327 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (107 of 133 remaining) [2024-01-27 23:02:13,328 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (106 of 133 remaining) [2024-01-27 23:02:13,328 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (105 of 133 remaining) [2024-01-27 23:02:13,328 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONWITNESS_INVARIANT (104 of 133 remaining) [2024-01-27 23:02:13,328 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONWITNESS_INVARIANT (103 of 133 remaining) [2024-01-27 23:02:13,328 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONWITNESS_INVARIANT (102 of 133 remaining) [2024-01-27 23:02:13,328 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONWITNESS_INVARIANT (101 of 133 remaining) [2024-01-27 23:02:13,329 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30ASSERT_VIOLATIONWITNESS_INVARIANT (100 of 133 remaining) [2024-01-27 23:02:13,329 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31ASSERT_VIOLATIONWITNESS_INVARIANT (99 of 133 remaining) [2024-01-27 23:02:13,329 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err32ASSERT_VIOLATIONWITNESS_INVARIANT (98 of 133 remaining) [2024-01-27 23:02:13,329 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err33ASSERT_VIOLATIONWITNESS_INVARIANT (97 of 133 remaining) [2024-01-27 23:02:13,329 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err34ASSERT_VIOLATIONWITNESS_INVARIANT (96 of 133 remaining) [2024-01-27 23:02:13,329 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err35ASSERT_VIOLATIONWITNESS_INVARIANT (95 of 133 remaining) [2024-01-27 23:02:13,329 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err36ASSERT_VIOLATIONWITNESS_INVARIANT (94 of 133 remaining) [2024-01-27 23:02:13,330 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err37ASSERT_VIOLATIONERROR_FUNCTION (93 of 133 remaining) [2024-01-27 23:02:13,330 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err38ASSERT_VIOLATIONWITNESS_INVARIANT (92 of 133 remaining) [2024-01-27 23:02:13,330 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err39ASSERT_VIOLATIONWITNESS_INVARIANT (91 of 133 remaining) [2024-01-27 23:02:13,330 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err40ASSERT_VIOLATIONWITNESS_INVARIANT (90 of 133 remaining) [2024-01-27 23:02:13,330 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err41ASSERT_VIOLATIONWITNESS_INVARIANT (89 of 133 remaining) [2024-01-27 23:02:13,330 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err42ASSERT_VIOLATIONWITNESS_INVARIANT (88 of 133 remaining) [2024-01-27 23:02:13,330 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (87 of 133 remaining) [2024-01-27 23:02:13,331 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (86 of 133 remaining) [2024-01-27 23:02:13,331 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (85 of 133 remaining) [2024-01-27 23:02:13,331 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (84 of 133 remaining) [2024-01-27 23:02:13,331 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (83 of 133 remaining) [2024-01-27 23:02:13,331 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (82 of 133 remaining) [2024-01-27 23:02:13,331 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (81 of 133 remaining) [2024-01-27 23:02:13,331 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (80 of 133 remaining) [2024-01-27 23:02:13,332 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err43ASSERT_VIOLATIONWITNESS_INVARIANT (79 of 133 remaining) [2024-01-27 23:02:13,332 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (78 of 133 remaining) [2024-01-27 23:02:13,332 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (77 of 133 remaining) [2024-01-27 23:02:13,332 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (76 of 133 remaining) [2024-01-27 23:02:13,332 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (75 of 133 remaining) [2024-01-27 23:02:13,332 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (74 of 133 remaining) [2024-01-27 23:02:13,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (73 of 133 remaining) [2024-01-27 23:02:13,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (72 of 133 remaining) [2024-01-27 23:02:13,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (71 of 133 remaining) [2024-01-27 23:02:13,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (70 of 133 remaining) [2024-01-27 23:02:13,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (69 of 133 remaining) [2024-01-27 23:02:13,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (68 of 133 remaining) [2024-01-27 23:02:13,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (67 of 133 remaining) [2024-01-27 23:02:13,334 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (66 of 133 remaining) [2024-01-27 23:02:13,334 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (65 of 133 remaining) [2024-01-27 23:02:13,334 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (64 of 133 remaining) [2024-01-27 23:02:13,334 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (63 of 133 remaining) [2024-01-27 23:02:13,334 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (62 of 133 remaining) [2024-01-27 23:02:13,334 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (61 of 133 remaining) [2024-01-27 23:02:13,334 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (60 of 133 remaining) [2024-01-27 23:02:13,335 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONWITNESS_INVARIANT (59 of 133 remaining) [2024-01-27 23:02:13,335 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 133 remaining) [2024-01-27 23:02:13,335 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 133 remaining) [2024-01-27 23:02:13,335 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 133 remaining) [2024-01-27 23:02:13,335 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 133 remaining) [2024-01-27 23:02:13,335 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 133 remaining) [2024-01-27 23:02:13,335 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err32ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 133 remaining) [2024-01-27 23:02:13,336 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err33ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 133 remaining) [2024-01-27 23:02:13,336 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err34ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 133 remaining) [2024-01-27 23:02:13,336 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err35ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 133 remaining) [2024-01-27 23:02:13,336 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err36ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 133 remaining) [2024-01-27 23:02:13,336 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err37ASSERT_VIOLATIONERROR_FUNCTION (48 of 133 remaining) [2024-01-27 23:02:13,336 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err38ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 133 remaining) [2024-01-27 23:02:13,336 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err39ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 133 remaining) [2024-01-27 23:02:13,337 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err40ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 133 remaining) [2024-01-27 23:02:13,337 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err41ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 133 remaining) [2024-01-27 23:02:13,337 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err42ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 133 remaining) [2024-01-27 23:02:13,337 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 133 remaining) [2024-01-27 23:02:13,337 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 133 remaining) [2024-01-27 23:02:13,337 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 133 remaining) [2024-01-27 23:02:13,337 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 133 remaining) [2024-01-27 23:02:13,338 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 133 remaining) [2024-01-27 23:02:13,338 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 133 remaining) [2024-01-27 23:02:13,338 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err43ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 133 remaining) [2024-01-27 23:02:13,338 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 133 remaining) [2024-01-27 23:02:13,338 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 133 remaining) [2024-01-27 23:02:13,338 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 133 remaining) [2024-01-27 23:02:13,339 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 133 remaining) [2024-01-27 23:02:13,339 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 133 remaining) [2024-01-27 23:02:13,339 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 133 remaining) [2024-01-27 23:02:13,339 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 133 remaining) [2024-01-27 23:02:13,339 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 133 remaining) [2024-01-27 23:02:13,339 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 133 remaining) [2024-01-27 23:02:13,339 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 133 remaining) [2024-01-27 23:02:13,340 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 133 remaining) [2024-01-27 23:02:13,340 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 133 remaining) [2024-01-27 23:02:13,340 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 133 remaining) [2024-01-27 23:02:13,340 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 133 remaining) [2024-01-27 23:02:13,340 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 133 remaining) [2024-01-27 23:02:13,340 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 133 remaining) [2024-01-27 23:02:13,340 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 133 remaining) [2024-01-27 23:02:13,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 133 remaining) [2024-01-27 23:02:13,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 133 remaining) [2024-01-27 23:02:13,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 133 remaining) [2024-01-27 23:02:13,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 133 remaining) [2024-01-27 23:02:13,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 133 remaining) [2024-01-27 23:02:13,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 133 remaining) [2024-01-27 23:02:13,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 133 remaining) [2024-01-27 23:02:13,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 133 remaining) [2024-01-27 23:02:13,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err32ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 133 remaining) [2024-01-27 23:02:13,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err33ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 133 remaining) [2024-01-27 23:02:13,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err34ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 133 remaining) [2024-01-27 23:02:13,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err35ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 133 remaining) [2024-01-27 23:02:13,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err36ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 133 remaining) [2024-01-27 23:02:13,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err37ASSERT_VIOLATIONERROR_FUNCTION (5 of 133 remaining) [2024-01-27 23:02:13,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err38ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 133 remaining) [2024-01-27 23:02:13,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err39ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 133 remaining) [2024-01-27 23:02:13,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err40ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 133 remaining) [2024-01-27 23:02:13,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err41ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 133 remaining) [2024-01-27 23:02:13,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err42ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 133 remaining) [2024-01-27 23:02:13,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-01-27 23:02:13,344 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1] [2024-01-27 23:02:13,348 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2024-01-27 23:02:13,348 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-27 23:02:13,377 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2024-01-27 23:02:13,384 INFO L503 ceAbstractionStarter]: Automizer considered 43 witness invariants [2024-01-27 23:02:13,384 INFO L504 ceAbstractionStarter]: WitnessConsidered=43 [2024-01-27 23:02:13,386 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 11:02:13 BasicIcfg [2024-01-27 23:02:13,386 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-27 23:02:13,386 INFO L158 Benchmark]: Toolchain (without parser) took 7448.50ms. Allocated memory was 163.6MB in the beginning and 511.7MB in the end (delta: 348.1MB). Free memory was 133.5MB in the beginning and 171.1MB in the end (delta: -37.5MB). Peak memory consumption was 311.4MB. Max. memory is 16.1GB. [2024-01-27 23:02:13,386 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 132.1MB. Free memory is still 85.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 23:02:13,386 INFO L158 Benchmark]: Witness Parser took 4.40ms. Allocated memory is still 132.1MB. Free memory was 103.1MB in the beginning and 103.1MB in the end (delta: 13.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 23:02:13,387 INFO L158 Benchmark]: CACSL2BoogieTranslator took 527.77ms. Allocated memory is still 163.6MB. Free memory was 133.5MB in the beginning and 106.3MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-01-27 23:02:13,387 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.82ms. Allocated memory is still 163.6MB. Free memory was 106.3MB in the beginning and 103.0MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-01-27 23:02:13,387 INFO L158 Benchmark]: Boogie Preprocessor took 70.07ms. Allocated memory is still 163.6MB. Free memory was 103.0MB in the beginning and 100.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-27 23:02:13,387 INFO L158 Benchmark]: RCFGBuilder took 553.84ms. Allocated memory is still 163.6MB. Free memory was 100.7MB in the beginning and 59.0MB in the end (delta: 41.8MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-01-27 23:02:13,387 INFO L158 Benchmark]: TraceAbstraction took 6251.73ms. Allocated memory was 163.6MB in the beginning and 511.7MB in the end (delta: 348.1MB). Free memory was 58.0MB in the beginning and 171.1MB in the end (delta: -113.0MB). Peak memory consumption was 235.9MB. Max. memory is 16.1GB. [2024-01-27 23:02:13,390 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 132.1MB. Free memory is still 85.2MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 4.40ms. Allocated memory is still 132.1MB. Free memory was 103.1MB in the beginning and 103.1MB in the end (delta: 13.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 527.77ms. Allocated memory is still 163.6MB. Free memory was 133.5MB in the beginning and 106.3MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.82ms. Allocated memory is still 163.6MB. Free memory was 106.3MB in the beginning and 103.0MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.07ms. Allocated memory is still 163.6MB. Free memory was 103.0MB in the beginning and 100.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 553.84ms. Allocated memory is still 163.6MB. Free memory was 100.7MB in the beginning and 59.0MB in the end (delta: 41.8MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 6251.73ms. Allocated memory was 163.6MB in the beginning and 511.7MB in the end (delta: 348.1MB). Free memory was 58.0MB in the beginning and 171.1MB in the end (delta: -113.0MB). Peak memory consumption was 235.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 721]: invariant of correctness witness can be violated invariant of correctness witness can be violated We found a FailurePath: [L689] 0 volatile int max = 0x80000000, m = 0; [L700] 0 int storage[2*3]; [L700] 0 int storage[2*3]; [L700] 0 int storage[2*3]; [L700] 0 int storage[2*3]; [L700] 0 int storage[2*3]; [L700] 0 int storage[2*3]; [L700] 0 int storage[2*3]; [L726] 0 int i = 0; VAL [i=0, m=0, max=-2147483648, storage={3:0}] [L726] COND TRUE 0 i < 2*3 [L727] 0 storage[i] = __VERIFIER_nondet_int() [L726] 0 i++ VAL [i=1, m=0, max=-2147483648, storage={3:0}] [L726] COND TRUE 0 i < 2*3 [L727] 0 storage[i] = __VERIFIER_nondet_int() [L726] 0 i++ VAL [i=2, m=0, max=-2147483648, storage={3:0}] [L726] COND TRUE 0 i < 2*3 [L727] 0 storage[i] = __VERIFIER_nondet_int() [L726] 0 i++ VAL [i=3, m=0, max=-2147483648, storage={3:0}] [L726] COND TRUE 0 i < 2*3 [L727] 0 storage[i] = __VERIFIER_nondet_int() [L726] 0 i++ VAL [i=4, m=0, max=-2147483648, storage={3:0}] [L726] COND TRUE 0 i < 2*3 [L727] 0 storage[i] = __VERIFIER_nondet_int() [L726] 0 i++ VAL [i=5, m=0, max=-2147483648, storage={3:0}] [L726] COND TRUE 0 i < 2*3 [L727] 0 storage[i] = __VERIFIER_nondet_int() [L726] 0 i++ VAL [i=6, m=0, max=-2147483648, storage={3:0}] [L726] COND FALSE 0 !(i < 2*3) [L728] 0 pthread_t t; VAL [m=0, max=-2147483648, storage={3:0}, t={5:0}] [L729] COND TRUE 0 1 [L729] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [m=0, max=-2147483648, storage={3:0}, t={5:0}] [L720] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] [L720] 1 int offset=__VERIFIER_nondet_int(); [L721] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IdentifierExpression[offset],IntegerLiteral[2147483646]]]] VAL [arg={0:0}, arg={0:0}, m=0, max=-2147483648, offset=2147483647, storage={3:0}] - UnprovableResult [Line: 720]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 721]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 721]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 722]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 705]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 723]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 710]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 713]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 710]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 713]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 710]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 713]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 710]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 713]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 715]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 715]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 715]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 715]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 715]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 715]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 715]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 715]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 715]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 716]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 716]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 716]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 716]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 705]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 729]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 203 locations, 89 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.3s, OverallIterations: 5, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 36 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 32 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 213 IncrementalHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 0 mSDtfsCounter, 213 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 35 SyntacticMatches, 4 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=275occurred in iteration=4, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s 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: 3.7s, OverallIterations: 5, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 68 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 63 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 389 IncrementalHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 0 mSDtfsCounter, 389 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 35 SyntacticMatches, 4 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=481occurred in iteration=4, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 75 NumberOfCodeBlocks, 71 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 71 ConstructedInterpolants, 0 QuantifiedInterpolants, 137 SizeOfPredicates, 2 NumberOfNonLiveVariables, 280 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 9 InterpolantComputations, 2 PerfectInterpolantSequences, 10/53 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-01-27 23:02:13,450 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