./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 cde23df1 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-cde23df-m [2024-06-14 14:20:20,567 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-14 14:20:20,636 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-14 14:20:20,641 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-14 14:20:20,641 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-14 14:20:20,664 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-14 14:20:20,666 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-14 14:20:20,666 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-14 14:20:20,667 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-14 14:20:20,670 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-14 14:20:20,670 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-14 14:20:20,670 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-14 14:20:20,671 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-14 14:20:20,672 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-14 14:20:20,672 INFO L153 SettingsManager]: * Use SBE=true [2024-06-14 14:20:20,672 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-14 14:20:20,673 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-14 14:20:20,673 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-14 14:20:20,673 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-14 14:20:20,673 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-14 14:20:20,673 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-14 14:20:20,676 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-14 14:20:20,676 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-14 14:20:20,676 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-14 14:20:20,676 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-14 14:20:20,677 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-14 14:20:20,677 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-14 14:20:20,677 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-14 14:20:20,677 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-14 14:20:20,678 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-14 14:20:20,678 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-14 14:20:20,679 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-14 14:20:20,679 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-14 14:20:20,679 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-14 14:20:20,679 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-14 14:20:20,679 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-14 14:20:20,679 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-14 14:20:20,680 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-14 14:20:20,680 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-14 14:20:20,680 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-14 14:20:20,680 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-14 14:20:20,680 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-14 14:20:20,680 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-14 14:20:20,681 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-14 14:20:20,942 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-14 14:20:20,963 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-14 14:20:20,965 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-14 14:20:20,966 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-14 14:20:20,966 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-14 14:20:20,967 INFO L431 ainManager$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 [2024-06-14 14:20:21,037 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-14 14:20:21,038 INFO L274 PluginConnector]: CDTParser initialized [2024-06-14 14:20:21,039 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-min-max-inc.wvr.c [2024-06-14 14:20:21,996 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-14 14:20:22,170 INFO L384 CDTParser]: Found 1 translation units. [2024-06-14 14:20:22,170 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-min-max-inc.wvr.c [2024-06-14 14:20:22,177 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/411677475/76f1f4b5f01d4059ba505f14cc9153b8/FLAG224cf84be [2024-06-14 14:20:22,193 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/411677475/76f1f4b5f01d4059ba505f14cc9153b8 [2024-06-14 14:20:22,193 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-14 14:20:22,194 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-14 14:20:22,196 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-14 14:20:22,196 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-14 14:20:22,200 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-14 14:20:22,200 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 02:20:21" (1/2) ... [2024-06-14 14:20:22,201 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c22d5c3 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:20:22, skipping insertion in model container [2024-06-14 14:20:22,201 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 02:20:21" (1/2) ... [2024-06-14 14:20:22,203 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@292f69b3 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:20:22, skipping insertion in model container [2024-06-14 14:20:22,204 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 02:20:22" (2/2) ... [2024-06-14 14:20:22,204 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c22d5c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:20:22, skipping insertion in model container [2024-06-14 14:20:22,204 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 02:20:22" (2/2) ... [2024-06-14 14:20:22,204 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-14 14:20:22,219 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-14 14:20:22,220 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) [2024-06-14 14:20:22,220 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) [2024-06-14 14:20:22,221 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) [2024-06-14 14:20:22,221 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) [2024-06-14 14:20:22,221 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-14 14:20:22,221 INFO L106 edCorrectnessWitness]: ghost_update [L110-L110] multithreaded = 1; [2024-06-14 14:20:22,241 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-14 14:20:22,423 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-14 14:20:22,433 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-14 14:20:22,547 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-14 14:20:22,558 INFO L206 MainTranslator]: Completed translation [2024-06-14 14:20:22,559 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:20:22 WrapperNode [2024-06-14 14:20:22,559 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-14 14:20:22,560 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-14 14:20:22,560 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-14 14:20:22,560 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-14 14:20:22,565 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:20:22" (1/1) ... [2024-06-14 14:20:22,579 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:20:22" (1/1) ... [2024-06-14 14:20:22,630 INFO L138 Inliner]: procedures = 25, calls = 44, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 126 [2024-06-14 14:20:22,631 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-14 14:20:22,631 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-14 14:20:22,631 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-14 14:20:22,631 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-14 14:20:22,639 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:20:22" (1/1) ... [2024-06-14 14:20:22,639 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:20:22" (1/1) ... [2024-06-14 14:20:22,643 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:20:22" (1/1) ... [2024-06-14 14:20:22,664 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]. [2024-06-14 14:20:22,665 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:20:22" (1/1) ... [2024-06-14 14:20:22,665 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:20:22" (1/1) ... [2024-06-14 14:20:22,672 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:20:22" (1/1) ... [2024-06-14 14:20:22,674 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:20:22" (1/1) ... [2024-06-14 14:20:22,676 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:20:22" (1/1) ... [2024-06-14 14:20:22,678 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:20:22" (1/1) ... [2024-06-14 14:20:22,681 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-14 14:20:22,682 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-14 14:20:22,682 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-14 14:20:22,682 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-14 14:20:22,683 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:20:22" (1/1) ... [2024-06-14 14:20:22,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-14 14:20:22,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-14 14:20:22,710 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) [2024-06-14 14:20:22,727 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 [2024-06-14 14:20:22,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-14 14:20:22,744 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-06-14 14:20:22,744 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-06-14 14:20:22,744 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-06-14 14:20:22,744 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-06-14 14:20:22,744 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-06-14 14:20:22,745 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-06-14 14:20:22,745 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-06-14 14:20:22,745 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-06-14 14:20:22,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-14 14:20:22,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-14 14:20:22,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-06-14 14:20:22,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-06-14 14:20:22,746 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-14 14:20:22,746 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-14 14:20:22,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-06-14 14:20:22,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-14 14:20:22,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-14 14:20:22,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-06-14 14:20:22,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-06-14 14:20:22,749 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-14 14:20:22,857 INFO L244 CfgBuilder]: Building ICFG [2024-06-14 14:20:22,859 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-14 14:20:23,201 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-14 14:20:23,201 INFO L293 CfgBuilder]: Performing block encoding [2024-06-14 14:20:23,367 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-14 14:20:23,367 INFO L320 CfgBuilder]: Removed 4 assume(true) statements. [2024-06-14 14:20:23,367 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 02:20:23 BoogieIcfgContainer [2024-06-14 14:20:23,368 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-14 14:20:23,370 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-14 14:20:23,370 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-14 14:20:23,372 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-14 14:20:23,372 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 02:20:21" (1/4) ... [2024-06-14 14:20:23,373 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cffe5b8 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 14.06 02:20:23, skipping insertion in model container [2024-06-14 14:20:23,373 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.06 02:20:22" (2/4) ... [2024-06-14 14:20:23,374 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cffe5b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 02:20:23, skipping insertion in model container [2024-06-14 14:20:23,374 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:20:22" (3/4) ... [2024-06-14 14:20:23,375 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cffe5b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 02:20:23, skipping insertion in model container [2024-06-14 14:20:23,375 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 02:20:23" (4/4) ... [2024-06-14 14:20:23,376 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-min-max-inc.wvr.c [2024-06-14 14:20:23,388 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-14 14:20:23,389 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-06-14 14:20:23,389 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-14 14:20:23,483 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-06-14 14:20:23,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions, 136 flow [2024-06-14 14:20:23,526 INFO L124 PetriNetUnfolderBase]: 4/50 cut-off events. [2024-06-14 14:20:23,526 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-06-14 14:20:23,529 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 50 events. 4/50 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. 0/42 useless extension candidates. Maximal degree in co-relation 45. Up to 2 conditions per place. [2024-06-14 14:20:23,529 INFO L82 GeneralOperation]: Start removeDead. Operand has 63 places, 54 transitions, 136 flow [2024-06-14 14:20:23,531 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 47 transitions, 112 flow [2024-06-14 14:20:23,539 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-14 14:20:23,546 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;@b885f44, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-14 14:20:23,547 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-06-14 14:20:23,551 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-14 14:20:23,551 INFO L124 PetriNetUnfolderBase]: 1/9 cut-off events. [2024-06-14 14:20:23,551 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-14 14:20:23,552 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:20:23,552 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:20:23,553 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)] === [2024-06-14 14:20:23,557 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:20:23,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1674423307, now seen corresponding path program 1 times [2024-06-14 14:20:23,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:20:23,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262662018] [2024-06-14 14:20:23,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:20:23,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:20:23,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:20:23,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:20:23,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:20:23,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262662018] [2024-06-14 14:20:23,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262662018] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:20:23,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:20:23,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-14 14:20:23,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718502841] [2024-06-14 14:20:23,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:20:23,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-14 14:20:23,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:20:23,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-14 14:20:23,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-14 14:20:23,794 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 54 [2024-06-14 14:20:23,796 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 47 transitions, 112 flow. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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) [2024-06-14 14:20:23,796 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:20:23,796 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 54 [2024-06-14 14:20:23,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:20:24,264 INFO L124 PetriNetUnfolderBase]: 2686/4281 cut-off events. [2024-06-14 14:20:24,264 INFO L125 PetriNetUnfolderBase]: For 178/178 co-relation queries the response was YES. [2024-06-14 14:20:24,272 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8121 conditions, 4281 events. 2686/4281 cut-off events. For 178/178 co-relation queries the response was YES. Maximal size of possible extension queue 258. Compared 26750 event pairs, 1861 based on Foata normal form. 0/3958 useless extension candidates. Maximal degree in co-relation 7707. Up to 3524 conditions per place. [2024-06-14 14:20:24,290 INFO L140 encePairwiseOnDemand]: 51/54 looper letters, 28 selfloop transitions, 2 changer transitions 2/48 dead transitions. [2024-06-14 14:20:24,290 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 48 transitions, 178 flow [2024-06-14 14:20:24,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-14 14:20:24,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-14 14:20:24,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 93 transitions. [2024-06-14 14:20:24,304 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5740740740740741 [2024-06-14 14:20:24,305 INFO L175 Difference]: Start difference. First operand has 56 places, 47 transitions, 112 flow. Second operand 3 states and 93 transitions. [2024-06-14 14:20:24,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 48 transitions, 178 flow [2024-06-14 14:20:24,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 48 transitions, 168 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-06-14 14:20:24,316 INFO L231 Difference]: Finished difference. Result has 53 places, 46 transitions, 108 flow [2024-06-14 14:20:24,318 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=108, PETRI_PLACES=53, PETRI_TRANSITIONS=46} [2024-06-14 14:20:24,321 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -3 predicate places. [2024-06-14 14:20:24,321 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 46 transitions, 108 flow [2024-06-14 14:20:24,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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) [2024-06-14 14:20:24,322 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:20:24,322 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:20:24,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-14 14:20:24,323 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)] === [2024-06-14 14:20:24,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:20:24,323 INFO L85 PathProgramCache]: Analyzing trace with hash -197861397, now seen corresponding path program 1 times [2024-06-14 14:20:24,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:20:24,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936385526] [2024-06-14 14:20:24,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:20:24,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:20:24,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:20:24,763 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:20:24,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:20:24,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936385526] [2024-06-14 14:20:24,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936385526] provided 0 perfect and 1 imperfect interpolant sequences [2024-06-14 14:20:24,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2121975479] [2024-06-14 14:20:24,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:20:24,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-14 14:20:24,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-14 14:20:24,766 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) [2024-06-14 14:20:24,779 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-06-14 14:20:24,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:20:24,831 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 9 conjunts are in the unsatisfiable core [2024-06-14 14:20:24,834 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-06-14 14:20:24,896 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-06-14 14:20:24,896 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-06-14 14:20:24,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2121975479] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:20:24,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-06-14 14:20:24,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [3] total 4 [2024-06-14 14:20:24,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893635637] [2024-06-14 14:20:24,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:20:24,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-14 14:20:24,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:20:24,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-14 14:20:24,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-06-14 14:20:24,913 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 54 [2024-06-14 14:20:24,913 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 46 transitions, 108 flow. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2024-06-14 14:20:24,914 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:20:24,914 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 54 [2024-06-14 14:20:24,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:20:25,525 INFO L124 PetriNetUnfolderBase]: 6186/8613 cut-off events. [2024-06-14 14:20:25,525 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-14 14:20:25,534 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16943 conditions, 8613 events. 6186/8613 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 369. Compared 45643 event pairs, 1795 based on Foata normal form. 16/8350 useless extension candidates. Maximal degree in co-relation 16932. Up to 7762 conditions per place. [2024-06-14 14:20:25,570 INFO L140 encePairwiseOnDemand]: 46/54 looper letters, 52 selfloop transitions, 4 changer transitions 0/65 dead transitions. [2024-06-14 14:20:25,570 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 65 transitions, 263 flow [2024-06-14 14:20:25,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-14 14:20:25,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-14 14:20:25,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 98 transitions. [2024-06-14 14:20:25,572 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6049382716049383 [2024-06-14 14:20:25,572 INFO L175 Difference]: Start difference. First operand has 53 places, 46 transitions, 108 flow. Second operand 3 states and 98 transitions. [2024-06-14 14:20:25,572 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 65 transitions, 263 flow [2024-06-14 14:20:25,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 65 transitions, 259 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-06-14 14:20:25,574 INFO L231 Difference]: Finished difference. Result has 53 places, 49 transitions, 136 flow [2024-06-14 14:20:25,574 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=136, PETRI_PLACES=53, PETRI_TRANSITIONS=49} [2024-06-14 14:20:25,575 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -3 predicate places. [2024-06-14 14:20:25,575 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 49 transitions, 136 flow [2024-06-14 14:20:25,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2024-06-14 14:20:25,575 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:20:25,575 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:20:25,590 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-06-14 14:20:25,790 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 [2024-06-14 14:20:25,791 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)] === [2024-06-14 14:20:25,791 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:20:25,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1764571622, now seen corresponding path program 1 times [2024-06-14 14:20:25,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:20:25,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727596639] [2024-06-14 14:20:25,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:20:25,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:20:25,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:20:26,121 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:20:26,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:20:26,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727596639] [2024-06-14 14:20:26,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727596639] provided 0 perfect and 1 imperfect interpolant sequences [2024-06-14 14:20:26,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1854081250] [2024-06-14 14:20:26,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:20:26,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-14 14:20:26,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-14 14:20:26,124 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) [2024-06-14 14:20:26,164 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-06-14 14:20:26,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:20:26,235 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 14 conjunts are in the unsatisfiable core [2024-06-14 14:20:26,237 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-06-14 14:20:26,341 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:20:26,341 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-06-14 14:20:26,607 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:20:26,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1854081250] provided 0 perfect and 2 imperfect interpolant sequences [2024-06-14 14:20:26,608 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-06-14 14:20:26,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-06-14 14:20:26,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529961316] [2024-06-14 14:20:26,608 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-06-14 14:20:26,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-06-14 14:20:26,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:20:26,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-06-14 14:20:26,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2024-06-14 14:20:26,690 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 54 [2024-06-14 14:20:26,692 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 49 transitions, 136 flow. Second operand has 12 states, 12 states have (on average 14.916666666666666) internal successors, (179), 12 states have internal predecessors, (179), 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) [2024-06-14 14:20:26,692 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:20:26,692 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 54 [2024-06-14 14:20:26,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:20:27,252 INFO L124 PetriNetUnfolderBase]: 4984/7201 cut-off events. [2024-06-14 14:20:27,252 INFO L125 PetriNetUnfolderBase]: For 1129/1169 co-relation queries the response was YES. [2024-06-14 14:20:27,259 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15370 conditions, 7201 events. 4984/7201 cut-off events. For 1129/1169 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 39182 event pairs, 1027 based on Foata normal form. 619/7786 useless extension candidates. Maximal degree in co-relation 12281. Up to 5771 conditions per place. [2024-06-14 14:20:27,264 INFO L140 encePairwiseOnDemand]: 44/54 looper letters, 0 selfloop transitions, 0 changer transitions 89/89 dead transitions. [2024-06-14 14:20:27,264 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 89 transitions, 396 flow [2024-06-14 14:20:27,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-14 14:20:27,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-14 14:20:27,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 176 transitions. [2024-06-14 14:20:27,266 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4656084656084656 [2024-06-14 14:20:27,266 INFO L175 Difference]: Start difference. First operand has 53 places, 49 transitions, 136 flow. Second operand 7 states and 176 transitions. [2024-06-14 14:20:27,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 89 transitions, 396 flow [2024-06-14 14:20:27,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 89 transitions, 389 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-14 14:20:27,267 INFO L231 Difference]: Finished difference. Result has 54 places, 0 transitions, 0 flow [2024-06-14 14:20:27,268 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=54, PETRI_TRANSITIONS=0} [2024-06-14 14:20:27,268 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -2 predicate places. [2024-06-14 14:20:27,268 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 0 transitions, 0 flow [2024-06-14 14:20:27,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 14.916666666666666) internal successors, (179), 12 states have internal predecessors, (179), 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) [2024-06-14 14:20:27,270 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 8 remaining) [2024-06-14 14:20:27,271 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 8 remaining) [2024-06-14 14:20:27,271 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 8 remaining) [2024-06-14 14:20:27,271 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 8 remaining) [2024-06-14 14:20:27,271 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 8 remaining) [2024-06-14 14:20:27,271 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 8 remaining) [2024-06-14 14:20:27,272 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2024-06-14 14:20:27,272 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2024-06-14 14:20:27,284 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-06-14 14:20:27,480 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 [2024-06-14 14:20:27,488 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-06-14 14:20:27,491 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-14 14:20:27,491 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-14 14:20:27,494 INFO L507 ceAbstractionStarter]: Automizer considered 4 witness invariants [2024-06-14 14:20:27,494 INFO L508 ceAbstractionStarter]: WitnessConsidered=4 [2024-06-14 14:20:27,494 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.06 02:20:27 BasicIcfg [2024-06-14 14:20:27,494 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-14 14:20:27,496 INFO L158 Benchmark]: Toolchain (without parser) took 5301.31ms. Allocated memory was 142.6MB in the beginning and 371.2MB in the end (delta: 228.6MB). Free memory was 94.5MB in the beginning and 210.5MB in the end (delta: -116.0MB). Peak memory consumption was 259.4MB. Max. memory is 16.1GB. [2024-06-14 14:20:27,496 INFO L158 Benchmark]: Witness Parser took 0.75ms. Allocated memory is still 102.8MB. Free memory is still 75.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-14 14:20:27,496 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 102.8MB. Free memory is still 72.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-14 14:20:27,496 INFO L158 Benchmark]: CACSL2BoogieTranslator took 363.30ms. Allocated memory is still 142.6MB. Free memory was 94.5MB in the beginning and 76.3MB in the end (delta: 18.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-06-14 14:20:27,497 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.06ms. Allocated memory is still 142.6MB. Free memory was 76.3MB in the beginning and 111.0MB in the end (delta: -34.7MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. [2024-06-14 14:20:27,498 INFO L158 Benchmark]: Boogie Preprocessor took 50.02ms. Allocated memory is still 142.6MB. Free memory was 111.0MB in the beginning and 107.6MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-14 14:20:27,499 INFO L158 Benchmark]: RCFGBuilder took 685.94ms. Allocated memory is still 142.6MB. Free memory was 107.6MB in the beginning and 107.5MB in the end (delta: 98.7kB). Peak memory consumption was 71.6MB. Max. memory is 16.1GB. [2024-06-14 14:20:27,500 INFO L158 Benchmark]: TraceAbstraction took 4124.65ms. Allocated memory was 142.6MB in the beginning and 371.2MB in the end (delta: 228.6MB). Free memory was 107.5MB in the beginning and 210.5MB in the end (delta: -103.0MB). Peak memory consumption was 273.2MB. Max. memory is 16.1GB. [2024-06-14 14:20:27,503 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 0.75ms. Allocated memory is still 102.8MB. Free memory is still 75.7MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.12ms. Allocated memory is still 102.8MB. Free memory is still 72.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 363.30ms. Allocated memory is still 142.6MB. Free memory was 94.5MB in the beginning and 76.3MB in the end (delta: 18.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.06ms. Allocated memory is still 142.6MB. Free memory was 76.3MB in the beginning and 111.0MB in the end (delta: -34.7MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.02ms. Allocated memory is still 142.6MB. Free memory was 111.0MB in the beginning and 107.6MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 685.94ms. Allocated memory is still 142.6MB. Free memory was 107.6MB in the beginning and 107.5MB in the end (delta: 98.7kB). Peak memory consumption was 71.6MB. Max. memory is 16.1GB. * TraceAbstraction took 4124.65ms. Allocated memory was 142.6MB in the beginning and 371.2MB in the end (delta: 228.6MB). Free memory was 107.5MB in the beginning and 210.5MB in the end (delta: -103.0MB). Peak memory consumption was 273.2MB. 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, 80 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: 4.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 174 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 158 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 421 IncrementalHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 7 mSDtfsCounter, 421 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=136occurred 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, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 923 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! [2024-06-14 14:20:27,524 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