./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-min-max-inc.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-05-21_14-57-05.files/mutex-meet/popl20-min-max-inc.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 76401ed0 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/weaver/popl20-min-max-inc.wvr.c ./goblint.2024-05-21_14-57-05.files/mutex-meet/popl20-min-max-inc.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-76401ed-m [2024-06-20 18:14:16,017 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-20 18:14:16,091 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-20 18:14:16,096 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-20 18:14:16,096 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-20 18:14:16,123 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-20 18:14:16,124 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-20 18:14:16,124 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-20 18:14:16,125 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-20 18:14:16,129 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-20 18:14:16,129 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-20 18:14:16,129 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-20 18:14:16,130 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-20 18:14:16,131 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-20 18:14:16,132 INFO L153 SettingsManager]: * Use SBE=true [2024-06-20 18:14:16,132 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-20 18:14:16,132 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-20 18:14:16,132 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-20 18:14:16,133 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-20 18:14:16,133 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-20 18:14:16,133 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-20 18:14:16,134 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-20 18:14:16,134 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-20 18:14:16,134 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-20 18:14:16,134 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-20 18:14:16,135 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-20 18:14:16,135 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-20 18:14:16,135 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-20 18:14:16,136 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-20 18:14:16,136 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-20 18:14:16,137 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-20 18:14:16,137 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-20 18:14:16,137 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-20 18:14:16,138 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-20 18:14:16,138 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-20 18:14:16,138 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-20 18:14:16,138 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-20 18:14:16,138 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-20 18:14:16,138 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-20 18:14:16,139 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-20 18:14:16,139 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-20 18:14:16,139 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-20 18:14:16,139 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-20 18:14:16,140 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-20 18:14:16,369 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-20 18:14:16,393 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-20 18:14:16,395 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-20 18:14:16,396 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-20 18:14:16,397 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-20 18:14:16,398 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/mutex-meet/popl20-min-max-inc.wvr.yml/witness.yml [2024-06-20 18:14:16,552 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-20 18:14:16,553 INFO L274 PluginConnector]: CDTParser initialized [2024-06-20 18:14:16,553 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-min-max-inc.wvr.c [2024-06-20 18:14:17,644 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-20 18:14:17,842 INFO L384 CDTParser]: Found 1 translation units. [2024-06-20 18:14:17,843 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-min-max-inc.wvr.c [2024-06-20 18:14:17,849 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ece3f4fc/203516933f6a4dbfa53d1fdeae8843e2/FLAGc34ad80f9 [2024-06-20 18:14:17,860 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ece3f4fc/203516933f6a4dbfa53d1fdeae8843e2 [2024-06-20 18:14:17,860 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-20 18:14:17,862 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-20 18:14:17,863 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-20 18:14:17,863 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-20 18:14:17,868 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-20 18:14:17,868 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.06 06:14:16" (1/2) ... [2024-06-20 18:14:17,869 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b3ed37 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:14:17, skipping insertion in model container [2024-06-20 18:14:17,869 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.06 06:14:16" (1/2) ... [2024-06-20 18:14:17,871 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7e53e9e8 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:14:17, skipping insertion in model container [2024-06-20 18:14:17,871 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.06 06:14:17" (2/2) ... [2024-06-20 18:14:17,871 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b3ed37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:14:17, skipping insertion in model container [2024-06-20 18:14:17,871 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.06 06:14:17" (2/2) ... [2024-06-20 18:14:17,872 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-20 18:14:17,887 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-20 18:14:17,888 INFO L97 edCorrectnessWitness]: Location invariant before [L113-L113] ! multithreaded || ((((((((((((((((((((((((2147483648LL + (long long )N) + (long long )v_assert >= 0LL && (2147483648LL + (long long )N) + (long long )b1 >= 0LL) && (2147483648LL + (long long )N) + (long long )b2 >= 0LL) && (1LL - (long long )b1) + (long long )v_assert >= 0LL) && (1LL - (long long )b1) + (long long )b2 >= 0LL) && (1LL - (long long )b2) + (long long )v_assert >= 0LL) && (2147483647LL - (long long )N) + (long long )v_assert >= 0LL) && (2147483647LL - (long long )N) + (long long )b1 >= 0LL) && (2147483647LL - (long long )N) + (long long )b2 >= 0LL) && (long long )b1 + (long long )v_assert >= 0LL) && (long long )b1 + (long long )b2 >= 0LL) && (long long )b2 + (long long )v_assert >= 0LL) && (1LL + (long long )b1) - (long long )v_assert >= 0LL) && (1LL + (long long )b1) - (long long )b2 >= 0LL) && (1LL + (long long )b2) - (long long )v_assert >= 0LL) && (2147483649LL + (long long )N) - (long long )v_assert >= 0LL) && (2147483649LL + (long long )N) - (long long )b1 >= 0LL) && (2147483649LL + (long long )N) - (long long )b2 >= 0LL) && (2LL - (long long )b1) - (long long )v_assert >= 0LL) && (2LL - (long long )b1) - (long long )b2 >= 0LL) && (2LL - (long long )b2) - (long long )v_assert >= 0LL) && (2147483648LL - (long long )N) - (long long )v_assert >= 0LL) && (2147483648LL - (long long )N) - (long long )b1 >= 0LL) && (2147483648LL - (long long )N) - (long long )b2 >= 0LL) [2024-06-20 18:14:17,888 INFO L97 edCorrectnessWitness]: Location invariant before [L111-L111] ! multithreaded || ((((((((((((((((((((((((2147483648LL + (long long )N) + (long long )v_assert >= 0LL && (2147483648LL + (long long )N) + (long long )b1 >= 0LL) && (2147483648LL + (long long )N) + (long long )b2 >= 0LL) && (1LL - (long long )b1) + (long long )v_assert >= 0LL) && (1LL - (long long )b1) + (long long )b2 >= 0LL) && (1LL - (long long )b2) + (long long )v_assert >= 0LL) && (2147483647LL - (long long )N) + (long long )v_assert >= 0LL) && (2147483647LL - (long long )N) + (long long )b1 >= 0LL) && (2147483647LL - (long long )N) + (long long )b2 >= 0LL) && (long long )b1 + (long long )v_assert >= 0LL) && (long long )b1 + (long long )b2 >= 0LL) && (long long )b2 + (long long )v_assert >= 0LL) && (1LL + (long long )b1) - (long long )v_assert >= 0LL) && (1LL + (long long )b1) - (long long )b2 >= 0LL) && (1LL + (long long )b2) - (long long )v_assert >= 0LL) && (2147483649LL + (long long )N) - (long long )v_assert >= 0LL) && (2147483649LL + (long long )N) - (long long )b1 >= 0LL) && (2147483649LL + (long long )N) - (long long )b2 >= 0LL) && (2LL - (long long )b1) - (long long )v_assert >= 0LL) && (2LL - (long long )b1) - (long long )b2 >= 0LL) && (2LL - (long long )b2) - (long long )v_assert >= 0LL) && (2147483648LL - (long long )N) - (long long )v_assert >= 0LL) && (2147483648LL - (long long )N) - (long long )b1 >= 0LL) && (2147483648LL - (long long )N) - (long long )b2 >= 0LL) [2024-06-20 18:14:17,888 INFO L97 edCorrectnessWitness]: Location invariant before [L114-L114] ! multithreaded || ((((((((((((((((((((((((2147483648LL + (long long )N) + (long long )v_assert >= 0LL && (2147483648LL + (long long )N) + (long long )b1 >= 0LL) && (2147483648LL + (long long )N) + (long long )b2 >= 0LL) && (1LL - (long long )b1) + (long long )v_assert >= 0LL) && (1LL - (long long )b1) + (long long )b2 >= 0LL) && (1LL - (long long )b2) + (long long )v_assert >= 0LL) && (2147483647LL - (long long )N) + (long long )v_assert >= 0LL) && (2147483647LL - (long long )N) + (long long )b1 >= 0LL) && (2147483647LL - (long long )N) + (long long )b2 >= 0LL) && (long long )b1 + (long long )v_assert >= 0LL) && (long long )b1 + (long long )b2 >= 0LL) && (long long )b2 + (long long )v_assert >= 0LL) && (1LL + (long long )b1) - (long long )v_assert >= 0LL) && (1LL + (long long )b1) - (long long )b2 >= 0LL) && (1LL + (long long )b2) - (long long )v_assert >= 0LL) && (2147483649LL + (long long )N) - (long long )v_assert >= 0LL) && (2147483649LL + (long long )N) - (long long )b1 >= 0LL) && (2147483649LL + (long long )N) - (long long )b2 >= 0LL) && (2LL - (long long )b1) - (long long )v_assert >= 0LL) && (2LL - (long long )b1) - (long long )b2 >= 0LL) && (2LL - (long long )b2) - (long long )v_assert >= 0LL) && (2147483648LL - (long long )N) - (long long )v_assert >= 0LL) && (2147483648LL - (long long )N) - (long long )b1 >= 0LL) && (2147483648LL - (long long )N) - (long long )b2 >= 0LL) [2024-06-20 18:14:17,889 INFO L97 edCorrectnessWitness]: Location invariant before [L112-L112] ! multithreaded || ((((((((((((((((((((((((2147483648LL + (long long )N) + (long long )v_assert >= 0LL && (2147483648LL + (long long )N) + (long long )b1 >= 0LL) && (2147483648LL + (long long )N) + (long long )b2 >= 0LL) && (1LL - (long long )b1) + (long long )v_assert >= 0LL) && (1LL - (long long )b1) + (long long )b2 >= 0LL) && (1LL - (long long )b2) + (long long )v_assert >= 0LL) && (2147483647LL - (long long )N) + (long long )v_assert >= 0LL) && (2147483647LL - (long long )N) + (long long )b1 >= 0LL) && (2147483647LL - (long long )N) + (long long )b2 >= 0LL) && (long long )b1 + (long long )v_assert >= 0LL) && (long long )b1 + (long long )b2 >= 0LL) && (long long )b2 + (long long )v_assert >= 0LL) && (1LL + (long long )b1) - (long long )v_assert >= 0LL) && (1LL + (long long )b1) - (long long )b2 >= 0LL) && (1LL + (long long )b2) - (long long )v_assert >= 0LL) && (2147483649LL + (long long )N) - (long long )v_assert >= 0LL) && (2147483649LL + (long long )N) - (long long )b1 >= 0LL) && (2147483649LL + (long long )N) - (long long )b2 >= 0LL) && (2LL - (long long )b1) - (long long )v_assert >= 0LL) && (2LL - (long long )b1) - (long long )b2 >= 0LL) && (2LL - (long long )b2) - (long long )v_assert >= 0LL) && (2147483648LL - (long long )N) - (long long )v_assert >= 0LL) && (2147483648LL - (long long )N) - (long long )b1 >= 0LL) && (2147483648LL - (long long )N) - (long long )b2 >= 0LL) [2024-06-20 18:14:17,889 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-20 18:14:17,889 INFO L106 edCorrectnessWitness]: ghost_update [L110-L110] multithreaded = 1; [2024-06-20 18:14:17,917 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-20 18:14:18,101 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-20 18:14:18,114 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-20 18:14:18,237 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-20 18:14:18,269 INFO L206 MainTranslator]: Completed translation [2024-06-20 18:14:18,270 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:14:18 WrapperNode [2024-06-20 18:14:18,271 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-20 18:14:18,272 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-20 18:14:18,272 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-20 18:14:18,272 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-20 18:14:18,279 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:14:18" (1/1) ... [2024-06-20 18:14:18,302 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:14:18" (1/1) ... [2024-06-20 18:14:18,352 INFO L138 Inliner]: procedures = 25, calls = 44, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 126 [2024-06-20 18:14:18,353 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-20 18:14:18,354 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-20 18:14:18,354 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-20 18:14:18,355 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-20 18:14:18,365 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:14:18" (1/1) ... [2024-06-20 18:14:18,365 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:14:18" (1/1) ... [2024-06-20 18:14:18,382 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:14:18" (1/1) ... [2024-06-20 18:14:18,412 INFO L175 MemorySlicer]: Split 12 memory accesses to 2 slices as follows [2, 10]. 83 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 2 writes are split as follows [0, 2]. [2024-06-20 18:14:18,413 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:14:18" (1/1) ... [2024-06-20 18:14:18,413 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:14:18" (1/1) ... [2024-06-20 18:14:18,427 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:14:18" (1/1) ... [2024-06-20 18:14:18,432 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:14:18" (1/1) ... [2024-06-20 18:14:18,438 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:14:18" (1/1) ... [2024-06-20 18:14:18,440 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:14:18" (1/1) ... [2024-06-20 18:14:18,448 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-20 18:14:18,449 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-20 18:14:18,449 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-20 18:14:18,449 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-20 18:14:18,450 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:14:18" (1/1) ... [2024-06-20 18:14:18,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-20 18:14:18,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-20 18:14:18,614 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-06-20 18:14:18,619 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-06-20 18:14:18,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-20 18:14:18,673 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-06-20 18:14:18,673 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-06-20 18:14:18,673 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-06-20 18:14:18,676 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-06-20 18:14:18,676 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-06-20 18:14:18,676 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-06-20 18:14:18,676 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-06-20 18:14:18,677 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-06-20 18:14:18,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-20 18:14:18,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-20 18:14:18,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-06-20 18:14:18,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-06-20 18:14:18,690 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-20 18:14:18,690 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-20 18:14:18,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-06-20 18:14:18,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-20 18:14:18,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-20 18:14:18,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-06-20 18:14:18,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-06-20 18:14:18,693 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-20 18:14:18,784 INFO L244 CfgBuilder]: Building ICFG [2024-06-20 18:14:18,786 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-20 18:14:19,202 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-20 18:14:19,203 INFO L293 CfgBuilder]: Performing block encoding [2024-06-20 18:14:19,397 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-20 18:14:19,397 INFO L320 CfgBuilder]: Removed 4 assume(true) statements. [2024-06-20 18:14:19,398 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.06 06:14:19 BoogieIcfgContainer [2024-06-20 18:14:19,398 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-20 18:14:19,401 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-20 18:14:19,402 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-20 18:14:19,404 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-20 18:14:19,405 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.06 06:14:16" (1/4) ... [2024-06-20 18:14:19,405 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@293b72ea and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 20.06 06:14:19, skipping insertion in model container [2024-06-20 18:14:19,405 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.06 06:14:17" (2/4) ... [2024-06-20 18:14:19,407 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@293b72ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.06 06:14:19, skipping insertion in model container [2024-06-20 18:14:19,408 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:14:18" (3/4) ... [2024-06-20 18:14:19,408 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@293b72ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.06 06:14:19, skipping insertion in model container [2024-06-20 18:14:19,409 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.06 06:14:19" (4/4) ... [2024-06-20 18:14:19,410 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-min-max-inc.wvr.c [2024-06-20 18:14:19,427 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-20 18:14:19,427 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-06-20 18:14:19,427 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-20 18:14:19,498 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-06-20 18:14:19,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions, 134 flow [2024-06-20 18:14:19,606 INFO L124 PetriNetUnfolderBase]: 4/49 cut-off events. [2024-06-20 18:14:19,606 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-06-20 18:14:19,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 49 events. 4/49 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 89 event pairs, 0 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 45. Up to 2 conditions per place. [2024-06-20 18:14:19,611 INFO L82 GeneralOperation]: Start removeDead. Operand has 62 places, 53 transitions, 134 flow [2024-06-20 18:14:19,616 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 55 places, 46 transitions, 110 flow [2024-06-20 18:14:19,630 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-20 18:14:19,640 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;@fafe0fb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-20 18:14:19,640 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-06-20 18:14:19,646 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-20 18:14:19,646 INFO L124 PetriNetUnfolderBase]: 1/8 cut-off events. [2024-06-20 18:14:19,646 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-20 18:14:19,646 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:14:19,647 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-06-20 18:14:19,648 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-20 18:14:19,652 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:14:19,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1914644518, now seen corresponding path program 1 times [2024-06-20 18:14:19,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:14:19,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740869958] [2024-06-20 18:14:19,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:14:19,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:14:19,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:14:19,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:14:19,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:14:19,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740869958] [2024-06-20 18:14:19,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740869958] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:14:19,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:14:19,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-20 18:14:19,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448161369] [2024-06-20 18:14:19,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:14:19,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-20 18:14:19,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:14:19,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-20 18:14:19,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-20 18:14:19,988 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 53 [2024-06-20 18:14:19,990 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 46 transitions, 110 flow. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:14:19,990 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:14:19,990 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 53 [2024-06-20 18:14:19,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:14:20,688 INFO L124 PetriNetUnfolderBase]: 2686/4304 cut-off events. [2024-06-20 18:14:20,689 INFO L125 PetriNetUnfolderBase]: For 159/159 co-relation queries the response was YES. [2024-06-20 18:14:20,701 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8142 conditions, 4304 events. 2686/4304 cut-off events. For 159/159 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 27209 event pairs, 1861 based on Foata normal form. 0/3980 useless extension candidates. Maximal degree in co-relation 7731. Up to 3522 conditions per place. [2024-06-20 18:14:20,727 INFO L140 encePairwiseOnDemand]: 50/53 looper letters, 26 selfloop transitions, 2 changer transitions 2/47 dead transitions. [2024-06-20 18:14:20,727 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 47 transitions, 172 flow [2024-06-20 18:14:20,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-20 18:14:20,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-20 18:14:20,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 94 transitions. [2024-06-20 18:14:20,740 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5911949685534591 [2024-06-20 18:14:20,741 INFO L175 Difference]: Start difference. First operand has 55 places, 46 transitions, 110 flow. Second operand 3 states and 94 transitions. [2024-06-20 18:14:20,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 47 transitions, 172 flow [2024-06-20 18:14:20,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 47 transitions, 162 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-06-20 18:14:20,761 INFO L231 Difference]: Finished difference. Result has 52 places, 45 transitions, 106 flow [2024-06-20 18:14:20,763 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=106, PETRI_PLACES=52, PETRI_TRANSITIONS=45} [2024-06-20 18:14:20,767 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, -3 predicate places. [2024-06-20 18:14:20,767 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 45 transitions, 106 flow [2024-06-20 18:14:20,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:14:20,768 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:14:20,768 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:14:20,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-20 18:14:20,769 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-20 18:14:20,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:14:20,770 INFO L85 PathProgramCache]: Analyzing trace with hash -781080558, now seen corresponding path program 1 times [2024-06-20 18:14:20,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:14:20,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777605577] [2024-06-20 18:14:20,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:14:20,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:14:20,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:14:21,473 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:14:21,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:14:21,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777605577] [2024-06-20 18:14:21,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777605577] provided 0 perfect and 1 imperfect interpolant sequences [2024-06-20 18:14:21,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1292365668] [2024-06-20 18:14:21,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:14:21,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-20 18:14:21,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-20 18:14:21,476 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) [2024-06-20 18:14:21,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-06-20 18:14:21,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:14:21,568 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 9 conjunts are in the unsatisfiable core [2024-06-20 18:14:21,572 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-06-20 18:14:21,653 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-06-20 18:14:21,653 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-06-20 18:14:21,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1292365668] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:14:21,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-06-20 18:14:21,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [3] total 4 [2024-06-20 18:14:21,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4922063] [2024-06-20 18:14:21,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:14:21,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-20 18:14:21,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:14:21,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-20 18:14:21,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-06-20 18:14:21,690 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 53 [2024-06-20 18:14:21,691 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 45 transitions, 106 flow. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:14:21,692 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:14:21,692 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 53 [2024-06-20 18:14:21,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:14:22,513 INFO L124 PetriNetUnfolderBase]: 6186/8608 cut-off events. [2024-06-20 18:14:22,513 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-20 18:14:22,527 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16936 conditions, 8608 events. 6186/8608 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 377. Compared 45659 event pairs, 1795 based on Foata normal form. 16/8376 useless extension candidates. Maximal degree in co-relation 16925. Up to 7762 conditions per place. [2024-06-20 18:14:22,585 INFO L140 encePairwiseOnDemand]: 45/53 looper letters, 50 selfloop transitions, 4 changer transitions 0/64 dead transitions. [2024-06-20 18:14:22,585 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 64 transitions, 257 flow [2024-06-20 18:14:22,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-20 18:14:22,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-20 18:14:22,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 99 transitions. [2024-06-20 18:14:22,587 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6226415094339622 [2024-06-20 18:14:22,587 INFO L175 Difference]: Start difference. First operand has 52 places, 45 transitions, 106 flow. Second operand 3 states and 99 transitions. [2024-06-20 18:14:22,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 64 transitions, 257 flow [2024-06-20 18:14:22,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 64 transitions, 253 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-06-20 18:14:22,590 INFO L231 Difference]: Finished difference. Result has 52 places, 48 transitions, 134 flow [2024-06-20 18:14:22,590 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=134, PETRI_PLACES=52, PETRI_TRANSITIONS=48} [2024-06-20 18:14:22,591 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, -3 predicate places. [2024-06-20 18:14:22,591 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 48 transitions, 134 flow [2024-06-20 18:14:22,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:14:22,591 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:14:22,591 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:14:22,607 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-06-20 18:14:22,806 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 [2024-06-20 18:14:22,807 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-20 18:14:22,807 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:14:22,807 INFO L85 PathProgramCache]: Analyzing trace with hash 990130293, now seen corresponding path program 1 times [2024-06-20 18:14:22,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:14:22,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887146012] [2024-06-20 18:14:22,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:14:22,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:14:22,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:14:23,234 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:14:23,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:14:23,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887146012] [2024-06-20 18:14:23,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887146012] provided 0 perfect and 1 imperfect interpolant sequences [2024-06-20 18:14:23,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [451018455] [2024-06-20 18:14:23,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:14:23,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-20 18:14:23,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-20 18:14:23,240 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) [2024-06-20 18:14:23,244 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-06-20 18:14:23,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:14:23,322 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 14 conjunts are in the unsatisfiable core [2024-06-20 18:14:23,324 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-06-20 18:14:23,442 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:14:23,442 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-06-20 18:14:23,771 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:14:23,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [451018455] provided 0 perfect and 2 imperfect interpolant sequences [2024-06-20 18:14:23,772 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-06-20 18:14:23,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-06-20 18:14:23,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746811118] [2024-06-20 18:14:23,772 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-06-20 18:14:23,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-06-20 18:14:23,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:14:23,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-06-20 18:14:23,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2024-06-20 18:14:23,913 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 53 [2024-06-20 18:14:23,914 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 48 transitions, 134 flow. Second operand has 12 states, 12 states have (on average 15.583333333333334) internal successors, (187), 12 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:14:23,914 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:14:23,914 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 53 [2024-06-20 18:14:23,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:14:24,772 INFO L124 PetriNetUnfolderBase]: 4984/7183 cut-off events. [2024-06-20 18:14:24,772 INFO L125 PetriNetUnfolderBase]: For 1113/1153 co-relation queries the response was YES. [2024-06-20 18:14:24,783 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15348 conditions, 7183 events. 4984/7183 cut-off events. For 1113/1153 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 39211 event pairs, 1027 based on Foata normal form. 619/7755 useless extension candidates. Maximal degree in co-relation 12274. Up to 5769 conditions per place. [2024-06-20 18:14:24,793 INFO L140 encePairwiseOnDemand]: 43/53 looper letters, 0 selfloop transitions, 0 changer transitions 86/86 dead transitions. [2024-06-20 18:14:24,794 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 86 transitions, 382 flow [2024-06-20 18:14:24,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-20 18:14:24,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-20 18:14:24,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 179 transitions. [2024-06-20 18:14:24,799 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48247978436657685 [2024-06-20 18:14:24,799 INFO L175 Difference]: Start difference. First operand has 52 places, 48 transitions, 134 flow. Second operand 7 states and 179 transitions. [2024-06-20 18:14:24,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 86 transitions, 382 flow [2024-06-20 18:14:24,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 86 transitions, 375 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-20 18:14:24,802 INFO L231 Difference]: Finished difference. Result has 53 places, 0 transitions, 0 flow [2024-06-20 18:14:24,802 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=53, PETRI_TRANSITIONS=0} [2024-06-20 18:14:24,803 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, -2 predicate places. [2024-06-20 18:14:24,804 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 0 transitions, 0 flow [2024-06-20 18:14:24,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 15.583333333333334) internal successors, (187), 12 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 18:14:24,806 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 8 remaining) [2024-06-20 18:14:24,807 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 8 remaining) [2024-06-20 18:14:24,807 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 8 remaining) [2024-06-20 18:14:24,808 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 8 remaining) [2024-06-20 18:14:24,808 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 8 remaining) [2024-06-20 18:14:24,808 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 8 remaining) [2024-06-20 18:14:24,808 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2024-06-20 18:14:24,808 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2024-06-20 18:14:24,828 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-06-20 18:14:25,028 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 [2024-06-20 18:14:25,029 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-06-20 18:14:25,032 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-20 18:14:25,033 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-20 18:14:25,037 INFO L507 ceAbstractionStarter]: Automizer considered 4 witness invariants [2024-06-20 18:14:25,038 INFO L508 ceAbstractionStarter]: WitnessConsidered=4 [2024-06-20 18:14:25,039 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.06 06:14:25 BasicIcfg [2024-06-20 18:14:25,039 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-20 18:14:25,039 INFO L158 Benchmark]: Toolchain (without parser) took 7177.81ms. Allocated memory was 163.6MB in the beginning and 371.2MB in the end (delta: 207.6MB). Free memory was 91.1MB in the beginning and 240.9MB in the end (delta: -149.8MB). Peak memory consumption was 241.9MB. Max. memory is 16.1GB. [2024-06-20 18:14:25,040 INFO L158 Benchmark]: Witness Parser took 0.21ms. Allocated memory is still 117.4MB. Free memory was 78.9MB in the beginning and 78.7MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-20 18:14:25,040 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 163.6MB. Free memory is still 135.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-20 18:14:25,041 INFO L158 Benchmark]: CACSL2BoogieTranslator took 407.93ms. Allocated memory is still 163.6MB. Free memory was 90.9MB in the beginning and 72.8MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-06-20 18:14:25,041 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.44ms. Allocated memory is still 163.6MB. Free memory was 72.8MB in the beginning and 68.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-06-20 18:14:25,041 INFO L158 Benchmark]: Boogie Preprocessor took 94.19ms. Allocated memory is still 163.6MB. Free memory was 68.6MB in the beginning and 65.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-06-20 18:14:25,042 INFO L158 Benchmark]: RCFGBuilder took 949.32ms. Allocated memory is still 163.6MB. Free memory was 65.2MB in the beginning and 69.2MB in the end (delta: -3.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-06-20 18:14:25,042 INFO L158 Benchmark]: TraceAbstraction took 5637.40ms. Allocated memory was 163.6MB in the beginning and 371.2MB in the end (delta: 207.6MB). Free memory was 68.4MB in the beginning and 240.9MB in the end (delta: -172.6MB). Peak memory consumption was 219.3MB. Max. memory is 16.1GB. [2024-06-20 18:14:25,044 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.21ms. Allocated memory is still 117.4MB. Free memory was 78.9MB in the beginning and 78.7MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.16ms. Allocated memory is still 163.6MB. Free memory is still 135.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 407.93ms. Allocated memory is still 163.6MB. Free memory was 90.9MB in the beginning and 72.8MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.44ms. Allocated memory is still 163.6MB. Free memory was 72.8MB in the beginning and 68.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 94.19ms. Allocated memory is still 163.6MB. Free memory was 68.6MB in the beginning and 65.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 949.32ms. Allocated memory is still 163.6MB. Free memory was 65.2MB in the beginning and 69.2MB in the end (delta: -3.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 5637.40ms. Allocated memory was 163.6MB in the beginning and 371.2MB in the end (delta: 207.6MB). Free memory was 68.4MB in the beginning and 240.9MB in the end (delta: -172.6MB). Peak memory consumption was 219.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 111]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 112]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 113]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 114]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 79 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 213 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 190 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 503 IncrementalHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 1 mSDtfsCounter, 503 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=134occurred in iteration=2, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 828 SizeOfPredicates, 1 NumberOfNonLiveVariables, 194 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 1/5 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-06-20 18:14:25,075 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE