./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-min-max-inc-dec.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-09-02_08-21-23.files/mutex-meet-local/popl20-min-max-inc-dec.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a4c57e3 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/weaver/popl20-min-max-inc-dec.wvr.c ./goblint.2024-09-02_08-21-23.files/mutex-meet-local/popl20-min-max-inc-dec.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.witness-ghost-4a4c57e-m [2024-09-08 15:13:34,279 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-08 15:13:34,342 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-09-08 15:13:34,346 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-08 15:13:34,347 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-08 15:13:34,360 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-08 15:13:34,360 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-08 15:13:34,360 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-08 15:13:34,361 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-08 15:13:34,361 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-08 15:13:34,362 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-08 15:13:34,362 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-08 15:13:34,362 INFO L153 SettingsManager]: * Use SBE=true [2024-09-08 15:13:34,362 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-08 15:13:34,363 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-08 15:13:34,363 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-08 15:13:34,363 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-08 15:13:34,363 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-08 15:13:34,364 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-08 15:13:34,364 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-08 15:13:34,364 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-08 15:13:34,365 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-08 15:13:34,366 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-08 15:13:34,370 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-08 15:13:34,370 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-08 15:13:34,371 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-08 15:13:34,371 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-08 15:13:34,371 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-08 15:13:34,371 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-08 15:13:34,371 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-08 15:13:34,371 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-08 15:13:34,372 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-08 15:13:34,372 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-08 15:13:34,372 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-08 15:13:34,372 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-08 15:13:34,372 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-09-08 15:13:34,373 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-08 15:13:34,373 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-08 15:13:34,373 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-09-08 15:13:34,373 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-09-08 15:13:34,373 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-09-08 15:13:34,374 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/UGemCutter-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-09-08 15:13:34,573 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-08 15:13:34,599 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-08 15:13:34,602 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-08 15:13:34,603 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-08 15:13:34,603 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-08 15:13:34,604 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-09-02_08-21-23.files/mutex-meet-local/popl20-min-max-inc-dec.wvr.yml/witness.yml [2024-09-08 15:13:34,770 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-08 15:13:34,770 INFO L274 PluginConnector]: CDTParser initialized [2024-09-08 15:13:34,771 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-min-max-inc-dec.wvr.c [2024-09-08 15:13:35,994 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-08 15:13:36,213 INFO L384 CDTParser]: Found 1 translation units. [2024-09-08 15:13:36,214 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-min-max-inc-dec.wvr.c [2024-09-08 15:13:36,220 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/39ab3beb9/ea6cb22414ac419e9a8b25149bf2ebd8/FLAG87f05cd04 [2024-09-08 15:13:36,580 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/39ab3beb9/ea6cb22414ac419e9a8b25149bf2ebd8 [2024-09-08 15:13:36,581 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-08 15:13:36,582 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-08 15:13:36,582 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-08 15:13:36,583 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-08 15:13:36,586 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-08 15:13:36,587 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 03:13:34" (1/2) ... [2024-09-08 15:13:36,587 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5678874f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 03:13:36, skipping insertion in model container [2024-09-08 15:13:36,588 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 03:13:34" (1/2) ... [2024-09-08 15:13:36,589 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@70c62f1b and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 03:13:36, skipping insertion in model container [2024-09-08 15:13:36,589 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 03:13:36" (2/2) ... [2024-09-08 15:13:36,589 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5678874f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:13:36, skipping insertion in model container [2024-09-08 15:13:36,589 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 03:13:36" (2/2) ... [2024-09-08 15:13:36,616 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-08 15:13:36,617 INFO L1541 ArrayList]: Location invariant before [L98-L98] ((((((((((((1 <= N) && ((-1LL + (long long )N) + (long long )v_assert >= 0LL)) && ((-1LL + (long long )N) + (long long )b1 >= 0LL)) && ((-1LL + (long long )N) + (long long )b2 >= 0LL)) && ((1073741823LL - (long long )N) + (long long )v_assert >= 0LL)) && ((1073741823LL - (long long )N) + (long long )b1 >= 0LL)) && ((1073741823LL - (long long )N) + (long long )b2 >= 0LL)) && ((1073741824LL - (long long )N) - (long long )v_assert >= 0LL)) && ((1073741824LL - (long long )N) - (long long )b1 >= 0LL)) && ((1073741824LL - (long long )N) - (long long )b2 >= 0LL)) && ((long long )N - (long long )v_assert >= 0LL)) && ((long long )N - (long long )b1 >= 0LL)) && ((long long )N - (long long )b2 >= 0LL) [2024-09-08 15:13:36,617 INFO L1541 ArrayList]: Location invariant before [L59-L59] ((((((((((((1 <= N) && ((-1LL + (long long )N) + (long long )v_assert >= 0LL)) && ((-1LL + (long long )N) + (long long )b1 >= 0LL)) && ((-1LL + (long long )N) + (long long )b2 >= 0LL)) && ((1073741823LL - (long long )N) + (long long )v_assert >= 0LL)) && ((1073741823LL - (long long )N) + (long long )b1 >= 0LL)) && ((1073741823LL - (long long )N) + (long long )b2 >= 0LL)) && ((1073741824LL - (long long )N) - (long long )v_assert >= 0LL)) && ((1073741824LL - (long long )N) - (long long )b1 >= 0LL)) && ((1073741824LL - (long long )N) - (long long )b2 >= 0LL)) && ((long long )N - (long long )v_assert >= 0LL)) && ((long long )N - (long long )b1 >= 0LL)) && ((long long )N - (long long )b2 >= 0LL) [2024-09-08 15:13:36,617 INFO L1541 ArrayList]: Location invariant before [L54-L54] ((((((((((((1 <= N) && ((-1LL + (long long )N) + (long long )v_assert >= 0LL)) && ((-1LL + (long long )N) + (long long )b1 >= 0LL)) && ((-1LL + (long long )N) + (long long )b2 >= 0LL)) && ((1073741823LL - (long long )N) + (long long )v_assert >= 0LL)) && ((1073741823LL - (long long )N) + (long long )b1 >= 0LL)) && ((1073741823LL - (long long )N) + (long long )b2 >= 0LL)) && ((1073741824LL - (long long )N) - (long long )v_assert >= 0LL)) && ((1073741824LL - (long long )N) - (long long )b1 >= 0LL)) && ((1073741824LL - (long long )N) - (long long )b2 >= 0LL)) && ((long long )N - (long long )v_assert >= 0LL)) && ((long long )N - (long long )b1 >= 0LL)) && ((long long )N - (long long )b2 >= 0LL) [2024-09-08 15:13:36,617 INFO L1541 ArrayList]: Location invariant before [L108-L108] ((((((((((((1 <= N) && ((-1LL + (long long )N) + (long long )v_assert >= 0LL)) && ((-1LL + (long long )N) + (long long )b1 >= 0LL)) && ((-1LL + (long long )N) + (long long )b2 >= 0LL)) && ((1073741823LL - (long long )N) + (long long )v_assert >= 0LL)) && ((1073741823LL - (long long )N) + (long long )b1 >= 0LL)) && ((1073741823LL - (long long )N) + (long long )b2 >= 0LL)) && ((1073741824LL - (long long )N) - (long long )v_assert >= 0LL)) && ((1073741824LL - (long long )N) - (long long )b1 >= 0LL)) && ((1073741824LL - (long long )N) - (long long )b2 >= 0LL)) && ((long long )N - (long long )v_assert >= 0LL)) && ((long long )N - (long long )b1 >= 0LL)) && ((long long )N - (long long )b2 >= 0LL) [2024-09-08 15:13:36,617 INFO L1541 ArrayList]: Location invariant before [L77-L77] ((((((((((((1 <= N) && ((-1LL + (long long )N) + (long long )v_assert >= 0LL)) && ((-1LL + (long long )N) + (long long )b1 >= 0LL)) && ((-1LL + (long long )N) + (long long )b2 >= 0LL)) && ((1073741823LL - (long long )N) + (long long )v_assert >= 0LL)) && ((1073741823LL - (long long )N) + (long long )b1 >= 0LL)) && ((1073741823LL - (long long )N) + (long long )b2 >= 0LL)) && ((1073741824LL - (long long )N) - (long long )v_assert >= 0LL)) && ((1073741824LL - (long long )N) - (long long )b1 >= 0LL)) && ((1073741824LL - (long long )N) - (long long )b2 >= 0LL)) && ((long long )N - (long long )v_assert >= 0LL)) && ((long long )N - (long long )b1 >= 0LL)) && ((long long )N - (long long )b2 >= 0LL) [2024-09-08 15:13:36,617 INFO L1541 ArrayList]: Location invariant before [L87-L87] ((((((((((((1 <= N) && ((-1LL + (long long )N) + (long long )v_assert >= 0LL)) && ((-1LL + (long long )N) + (long long )b1 >= 0LL)) && ((-1LL + (long long )N) + (long long )b2 >= 0LL)) && ((1073741823LL - (long long )N) + (long long )v_assert >= 0LL)) && ((1073741823LL - (long long )N) + (long long )b1 >= 0LL)) && ((1073741823LL - (long long )N) + (long long )b2 >= 0LL)) && ((1073741824LL - (long long )N) - (long long )v_assert >= 0LL)) && ((1073741824LL - (long long )N) - (long long )b1 >= 0LL)) && ((1073741824LL - (long long )N) - (long long )b2 >= 0LL)) && ((long long )N - (long long )v_assert >= 0LL)) && ((long long )N - (long long )b1 >= 0LL)) && ((long long )N - (long long )b2 >= 0LL) [2024-09-08 15:13:36,618 INFO L1541 ArrayList]: Location invariant before [L72-L72] ((((((((((((1 <= N) && ((-1LL + (long long )N) + (long long )v_assert >= 0LL)) && ((-1LL + (long long )N) + (long long )b1 >= 0LL)) && ((-1LL + (long long )N) + (long long )b2 >= 0LL)) && ((1073741823LL - (long long )N) + (long long )v_assert >= 0LL)) && ((1073741823LL - (long long )N) + (long long )b1 >= 0LL)) && ((1073741823LL - (long long )N) + (long long )b2 >= 0LL)) && ((1073741824LL - (long long )N) - (long long )v_assert >= 0LL)) && ((1073741824LL - (long long )N) - (long long )b1 >= 0LL)) && ((1073741824LL - (long long )N) - (long long )b2 >= 0LL)) && ((long long )N - (long long )v_assert >= 0LL)) && ((long long )N - (long long )b1 >= 0LL)) && ((long long )N - (long long )b2 >= 0LL) [2024-09-08 15:13:36,618 INFO L1541 ArrayList]: Location invariant before [L50-L50] ((((((((((((1 <= N) && ((-1LL + (long long )N) + (long long )v_assert >= 0LL)) && ((-1LL + (long long )N) + (long long )b1 >= 0LL)) && ((-1LL + (long long )N) + (long long )b2 >= 0LL)) && ((1073741823LL - (long long )N) + (long long )v_assert >= 0LL)) && ((1073741823LL - (long long )N) + (long long )b1 >= 0LL)) && ((1073741823LL - (long long )N) + (long long )b2 >= 0LL)) && ((1073741824LL - (long long )N) - (long long )v_assert >= 0LL)) && ((1073741824LL - (long long )N) - (long long )b1 >= 0LL)) && ((1073741824LL - (long long )N) - (long long )b2 >= 0LL)) && ((long long )N - (long long )v_assert >= 0LL)) && ((long long )N - (long long )b1 >= 0LL)) && ((long long )N - (long long )b2 >= 0LL) [2024-09-08 15:13:36,618 INFO L1541 ArrayList]: Location invariant before [L68-L68] ((((((((((((1 <= N) && ((-1LL + (long long )N) + (long long )v_assert >= 0LL)) && ((-1LL + (long long )N) + (long long )b1 >= 0LL)) && ((-1LL + (long long )N) + (long long )b2 >= 0LL)) && ((1073741823LL - (long long )N) + (long long )v_assert >= 0LL)) && ((1073741823LL - (long long )N) + (long long )b1 >= 0LL)) && ((1073741823LL - (long long )N) + (long long )b2 >= 0LL)) && ((1073741824LL - (long long )N) - (long long )v_assert >= 0LL)) && ((1073741824LL - (long long )N) - (long long )b1 >= 0LL)) && ((1073741824LL - (long long )N) - (long long )b2 >= 0LL)) && ((long long )N - (long long )v_assert >= 0LL)) && ((long long )N - (long long )b1 >= 0LL)) && ((long long )N - (long long )b2 >= 0LL) [2024-09-08 15:13:36,636 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-08 15:13:36,809 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-min-max-inc-dec.wvr.c[3336,3349] [2024-09-08 15:13:36,817 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-08 15:13:36,827 INFO L200 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-09-08 15:13:36,940 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-min-max-inc-dec.wvr.c[3336,3349] [2024-09-08 15:13:36,946 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-08 15:13:36,967 INFO L204 MainTranslator]: Completed translation [2024-09-08 15:13:36,968 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:13:36 WrapperNode [2024-09-08 15:13:36,970 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-08 15:13:36,971 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-08 15:13:36,971 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-08 15:13:36,971 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-08 15:13:36,976 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:13:36" (1/1) ... [2024-09-08 15:13:36,991 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:13:36" (1/1) ... [2024-09-08 15:13:37,022 INFO L138 Inliner]: procedures = 26, calls = 50, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 154 [2024-09-08 15:13:37,022 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-08 15:13:37,023 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-08 15:13:37,023 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-08 15:13:37,023 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-08 15:13:37,029 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:13:36" (1/1) ... [2024-09-08 15:13:37,029 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:13:36" (1/1) ... [2024-09-08 15:13:37,032 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:13:36" (1/1) ... [2024-09-08 15:13:37,032 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:13:36" (1/1) ... [2024-09-08 15:13:37,038 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:13:36" (1/1) ... [2024-09-08 15:13:37,043 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:13:36" (1/1) ... [2024-09-08 15:13:37,049 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:13:36" (1/1) ... [2024-09-08 15:13:37,050 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:13:36" (1/1) ... [2024-09-08 15:13:37,057 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-08 15:13:37,058 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-08 15:13:37,058 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-08 15:13:37,058 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-08 15:13:37,058 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:13:36" (1/1) ... [2024-09-08 15:13:37,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-08 15:13:37,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:13:37,092 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-09-08 15:13:37,099 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-09-08 15:13:37,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-08 15:13:37,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-08 15:13:37,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-08 15:13:37,136 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-09-08 15:13:37,136 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-09-08 15:13:37,136 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-09-08 15:13:37,136 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-09-08 15:13:37,136 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-09-08 15:13:37,137 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-09-08 15:13:37,137 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-09-08 15:13:37,137 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-09-08 15:13:37,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-08 15:13:37,137 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-09-08 15:13:37,137 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-09-08 15:13:37,138 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-09-08 15:13:37,138 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-09-08 15:13:37,138 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-09-08 15:13:37,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-08 15:13:37,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-08 15:13:37,140 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-09-08 15:13:37,244 INFO L242 CfgBuilder]: Building ICFG [2024-09-08 15:13:37,246 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-08 15:13:37,622 INFO L287 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-09-08 15:13:37,623 INFO L291 CfgBuilder]: Performing block encoding [2024-09-08 15:13:37,851 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-08 15:13:37,851 INFO L318 CfgBuilder]: Removed 5 assume(true) statements. [2024-09-08 15:13:37,852 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 03:13:37 BoogieIcfgContainer [2024-09-08 15:13:37,852 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-08 15:13:37,854 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-08 15:13:37,855 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-08 15:13:37,858 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-08 15:13:37,858 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 03:13:34" (1/4) ... [2024-09-08 15:13:37,859 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@129aa4df and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 08.09 03:13:37, skipping insertion in model container [2024-09-08 15:13:37,860 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 03:13:36" (2/4) ... [2024-09-08 15:13:37,860 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@129aa4df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 03:13:37, skipping insertion in model container [2024-09-08 15:13:37,861 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:13:36" (3/4) ... [2024-09-08 15:13:37,861 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@129aa4df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 03:13:37, skipping insertion in model container [2024-09-08 15:13:37,861 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 03:13:37" (4/4) ... [2024-09-08 15:13:37,863 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-min-max-inc-dec.wvr.c [2024-09-08 15:13:37,880 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-08 15:13:37,881 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2024-09-08 15:13:37,881 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-09-08 15:13:37,951 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2024-09-08 15:13:38,007 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 15:13:38,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-08 15:13:38,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:13:38,014 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-09-08 15:13:38,015 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-09-08 15:13:38,045 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-08 15:13:38,057 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread2Thread1of1ForFork3 ======== [2024-09-08 15:13:38,061 INFO L336 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@2eb70d6b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 15:13:38,062 INFO L337 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-09-08 15:13:38,228 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 15:13:38,234 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:13:38,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1765830500, now seen corresponding path program 1 times [2024-09-08 15:13:38,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:13:38,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180455928] [2024-09-08 15:13:38,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:13:38,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:13:38,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:13:38,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 15:13:38,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:13:38,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180455928] [2024-09-08 15:13:38,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180455928] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 15:13:38,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 15:13:38,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-08 15:13:38,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954660603] [2024-09-08 15:13:38,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 15:13:38,618 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-08 15:13:38,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:13:38,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-08 15:13:38,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-08 15:13:38,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:13:38,650 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:13:38,650 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 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) [2024-09-08 15:13:38,650 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:13:38,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:13:38,675 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-08 15:13:38,676 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 15:13:38,676 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:13:38,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1569227838, now seen corresponding path program 1 times [2024-09-08 15:13:38,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:13:38,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706111992] [2024-09-08 15:13:38,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:13:38,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:13:38,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:13:39,028 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 15:13:39,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:13:39,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706111992] [2024-09-08 15:13:39,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706111992] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 15:13:39,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1217402866] [2024-09-08 15:13:39,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:13:39,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:13:39,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:13:39,051 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 15:13:39,056 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-08 15:13:39,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:13:39,184 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-08 15:13:39,188 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:13:39,315 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 15:13:39,315 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:13:39,565 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 15:13:39,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1217402866] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:13:39,566 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 15:13:39,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4, 4] total 9 [2024-09-08 15:13:39,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160886884] [2024-09-08 15:13:39,567 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 15:13:39,567 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-08 15:13:39,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:13:39,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-08 15:13:39,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-09-08 15:13:39,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:13:39,570 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:13:39,570 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 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) [2024-09-08 15:13:39,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:13:39,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:13:45,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:13:45,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:13:45,445 INFO L785 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 3 remaining) [2024-09-08 15:13:45,445 INFO L785 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 3 remaining) [2024-09-08 15:13:45,445 INFO L785 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 3 remaining) [2024-09-08 15:13:45,461 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-09-08 15:13:45,649 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-09-08 15:13:45,656 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1] [2024-09-08 15:13:45,657 INFO L312 ceAbstractionStarter]: Result for error location thread2Thread1of1ForFork3 was SAFE,SAFE,SAFE (1/6) [2024-09-08 15:13:45,660 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 15:13:45,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-08 15:13:45,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:13:45,662 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-09-08 15:13:45,668 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process [2024-09-08 15:13:45,670 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-08 15:13:45,671 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread4Thread1of1ForFork2 ======== [2024-09-08 15:13:45,671 INFO L336 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@2eb70d6b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 15:13:45,672 INFO L337 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-09-08 15:13:45,764 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 15:13:45,765 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:13:45,765 INFO L85 PathProgramCache]: Analyzing trace with hash -55299222, now seen corresponding path program 1 times [2024-09-08 15:13:45,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:13:45,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608581476] [2024-09-08 15:13:45,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:13:45,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:13:45,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:13:45,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 15:13:45,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:13:45,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608581476] [2024-09-08 15:13:45,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608581476] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 15:13:45,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 15:13:45,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-08 15:13:45,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119164246] [2024-09-08 15:13:45,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 15:13:45,845 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-08 15:13:45,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:13:45,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-08 15:13:45,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-08 15:13:45,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:13:45,847 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:13:45,847 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 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) [2024-09-08 15:13:45,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:13:45,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:13:45,885 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-08 15:13:45,885 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 15:13:45,885 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:13:45,885 INFO L85 PathProgramCache]: Analyzing trace with hash -124575924, now seen corresponding path program 1 times [2024-09-08 15:13:45,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:13:45,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476934970] [2024-09-08 15:13:45,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:13:45,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:13:45,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:13:46,174 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 15:13:46,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:13:46,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476934970] [2024-09-08 15:13:46,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476934970] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 15:13:46,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1569946583] [2024-09-08 15:13:46,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:13:46,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:13:46,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:13:46,176 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 15:13:46,178 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-08 15:13:46,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:13:46,248 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-08 15:13:46,249 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:13:46,338 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 15:13:46,338 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:13:46,550 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 15:13:46,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1569946583] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:13:46,551 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 15:13:46,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-09-08 15:13:46,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480951489] [2024-09-08 15:13:46,551 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 15:13:46,552 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-08 15:13:46,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:13:46,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-08 15:13:46,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-09-08 15:13:46,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:13:46,554 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:13:46,554 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 9 states have internal predecessors, (52), 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) [2024-09-08 15:13:46,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:13:46,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:13:51,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:13:51,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:13:51,067 INFO L785 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 1 remaining) [2024-09-08 15:13:51,085 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-09-08 15:13:51,267 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:13:51,269 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1] [2024-09-08 15:13:51,269 INFO L312 ceAbstractionStarter]: Result for error location thread4Thread1of1ForFork2 was SAFE (2/6) [2024-09-08 15:13:51,271 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 15:13:51,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-08 15:13:51,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:13:51,276 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-09-08 15:13:51,278 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Waiting until timeout for monitored process [2024-09-08 15:13:51,279 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-08 15:13:51,281 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread5Thread1of1ForFork4 ======== [2024-09-08 15:13:51,282 INFO L336 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@2eb70d6b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 15:13:51,282 INFO L337 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-09-08 15:13:51,399 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting thread5Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread5Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 15:13:51,399 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:13:51,399 INFO L85 PathProgramCache]: Analyzing trace with hash 1575787850, now seen corresponding path program 1 times [2024-09-08 15:13:51,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:13:51,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796344260] [2024-09-08 15:13:51,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:13:51,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:13:51,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:13:51,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 15:13:51,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:13:51,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796344260] [2024-09-08 15:13:51,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796344260] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 15:13:51,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 15:13:51,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-08 15:13:51,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574426332] [2024-09-08 15:13:51,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 15:13:51,487 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-08 15:13:51,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:13:51,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-08 15:13:51,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-08 15:13:51,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:13:51,487 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:13:51,487 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 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) [2024-09-08 15:13:51,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:13:51,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:13:51,537 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-09-08 15:13:51,537 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting thread5Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread5Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 15:13:51,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:13:51,537 INFO L85 PathProgramCache]: Analyzing trace with hash 582896680, now seen corresponding path program 1 times [2024-09-08 15:13:51,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:13:51,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838299776] [2024-09-08 15:13:51,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:13:51,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:13:51,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:13:51,844 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 15:13:51,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:13:51,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838299776] [2024-09-08 15:13:51,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838299776] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 15:13:51,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [517204723] [2024-09-08 15:13:51,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:13:51,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:13:51,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:13:51,847 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 15:13:51,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-08 15:13:51,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:13:51,914 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-08 15:13:51,915 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:13:51,971 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 15:13:51,971 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:13:52,141 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 15:13:52,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [517204723] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:13:52,142 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 15:13:52,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-09-08 15:13:52,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105342909] [2024-09-08 15:13:52,142 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 15:13:52,142 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-08 15:13:52,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:13:52,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-08 15:13:52,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-09-08 15:13:52,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:13:52,143 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:13:52,143 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.4) internal successors, (34), 9 states have internal predecessors, (34), 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) [2024-09-08 15:13:52,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:13:52,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:13:53,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:13:53,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:13:53,860 INFO L785 garLoopResultBuilder]: Registering result SAFE for location thread5Err0ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 1 remaining) [2024-09-08 15:13:53,876 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-09-08 15:13:54,061 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:13:54,063 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1] [2024-09-08 15:13:54,064 INFO L312 ceAbstractionStarter]: Result for error location thread5Thread1of1ForFork4 was SAFE (3/6) [2024-09-08 15:13:54,065 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 15:13:54,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-08 15:13:54,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:13:54,071 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-09-08 15:13:54,075 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (8)] Waiting until timeout for monitored process [2024-09-08 15:13:54,076 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-08 15:13:54,078 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread1Thread1of1ForFork1 ======== [2024-09-08 15:13:54,078 INFO L336 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@2eb70d6b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 15:13:54,078 INFO L337 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-09-08 15:13:54,125 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 15:13:54,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:13:54,125 INFO L85 PathProgramCache]: Analyzing trace with hash 586164397, now seen corresponding path program 1 times [2024-09-08 15:13:54,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:13:54,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843256782] [2024-09-08 15:13:54,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:13:54,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:13:54,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:13:54,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 15:13:54,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:13:54,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843256782] [2024-09-08 15:13:54,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843256782] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 15:13:54,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 15:13:54,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-08 15:13:54,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86427480] [2024-09-08 15:13:54,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 15:13:54,162 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-08 15:13:54,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:13:54,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-08 15:13:54,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-08 15:13:54,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:13:54,164 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:13:54,164 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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) [2024-09-08 15:13:54,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:13:54,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:13:54,179 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-09-08 15:13:54,179 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 15:13:54,180 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:13:54,180 INFO L85 PathProgramCache]: Analyzing trace with hash 988288011, now seen corresponding path program 1 times [2024-09-08 15:13:54,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:13:54,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015061769] [2024-09-08 15:13:54,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:13:54,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:13:54,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:13:54,344 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 15:13:54,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:13:54,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015061769] [2024-09-08 15:13:54,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015061769] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 15:13:54,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1650964389] [2024-09-08 15:13:54,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:13:54,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:13:54,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:13:54,348 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 15:13:54,349 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-09-08 15:13:54,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:13:54,416 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-08 15:13:54,416 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:13:54,490 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 15:13:54,491 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:13:54,646 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 15:13:54,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1650964389] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:13:54,646 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 15:13:54,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2024-09-08 15:13:54,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567500356] [2024-09-08 15:13:54,647 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 15:13:54,647 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-08 15:13:54,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:13:54,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-08 15:13:54,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-09-08 15:13:54,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:13:54,648 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:13:54,648 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 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) [2024-09-08 15:13:54,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:13:54,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:13:59,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:13:59,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:13:59,198 INFO L785 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 3 remaining) [2024-09-08 15:13:59,198 INFO L785 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 3 remaining) [2024-09-08 15:13:59,198 INFO L785 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 3 remaining) [2024-09-08 15:13:59,210 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-09-08 15:13:59,398 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:13:59,400 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1] [2024-09-08 15:13:59,400 INFO L312 ceAbstractionStarter]: Result for error location thread1Thread1of1ForFork1 was SAFE,SAFE,SAFE (4/6) [2024-09-08 15:13:59,401 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 15:13:59,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-08 15:13:59,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:13:59,403 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-09-08 15:13:59,403 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (10)] Waiting until timeout for monitored process [2024-09-08 15:13:59,405 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-08 15:13:59,405 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-09-08 15:13:59,406 INFO L336 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@2eb70d6b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 15:13:59,406 INFO L337 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-09-08 15:14:01,133 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-09-08 15:14:01,134 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:14:01,134 INFO L85 PathProgramCache]: Analyzing trace with hash 677004760, now seen corresponding path program 1 times [2024-09-08 15:14:01,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:14:01,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919264415] [2024-09-08 15:14:01,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:14:01,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:14:01,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:14:01,312 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-08 15:14:01,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:14:01,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919264415] [2024-09-08 15:14:01,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919264415] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 15:14:01,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 15:14:01,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-08 15:14:01,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199499207] [2024-09-08 15:14:01,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 15:14:01,313 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-08 15:14:01,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:14:01,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-08 15:14:01,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-08 15:14:01,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:14:01,313 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:14:01,313 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 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) [2024-09-08 15:14:01,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:14:01,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:14:01,884 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-09-08 15:14:01,885 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-09-08 15:14:01,885 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:14:01,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1480317898, now seen corresponding path program 1 times [2024-09-08 15:14:01,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:14:01,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458279630] [2024-09-08 15:14:01,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:14:01,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:14:01,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:14:02,167 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 31 proven. 2 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-09-08 15:14:02,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:14:02,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458279630] [2024-09-08 15:14:02,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458279630] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 15:14:02,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1133242606] [2024-09-08 15:14:02,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:14:02,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:14:02,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:14:02,169 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 15:14:02,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-09-08 15:14:02,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:14:02,280 INFO L262 TraceCheckSpWp]: Trace formula consists of 619 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-08 15:14:02,282 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:14:02,376 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 32 proven. 1 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-09-08 15:14:02,376 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:14:02,440 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 32 proven. 1 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-09-08 15:14:02,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1133242606] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:14:02,440 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 15:14:02,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2024-09-08 15:14:02,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287925279] [2024-09-08 15:14:02,441 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 15:14:02,441 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-08 15:14:02,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:14:02,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-08 15:14:02,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2024-09-08 15:14:02,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:14:02,442 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:14:02,442 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.357142857142858) internal successors, (117), 13 states have internal predecessors, (117), 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) [2024-09-08 15:14:02,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:14:02,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:14:03,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:14:03,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 15:14:03,357 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-09-08 15:14:03,549 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-09-08 15:14:03,550 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-09-08 15:14:03,550 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:14:03,550 INFO L85 PathProgramCache]: Analyzing trace with hash 362156440, now seen corresponding path program 2 times [2024-09-08 15:14:03,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:14:03,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668747683] [2024-09-08 15:14:03,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:14:03,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:14:03,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:14:04,091 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 22 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 15:14:04,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:14:04,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668747683] [2024-09-08 15:14:04,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668747683] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 15:14:04,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [11835520] [2024-09-08 15:14:04,092 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-08 15:14:04,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:14:04,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:14:04,093 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 15:14:04,094 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-09-08 15:14:04,184 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-09-08 15:14:04,184 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 15:14:04,186 INFO L262 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-08 15:14:04,188 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:14:04,239 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-09-08 15:14:04,367 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2024-09-08 15:14:04,367 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-08 15:14:04,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [11835520] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 15:14:04,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-08 15:14:04,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [20] total 24 [2024-09-08 15:14:04,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234232680] [2024-09-08 15:14:04,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 15:14:04,372 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-08 15:14:04,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:14:04,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-08 15:14:04,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=487, Unknown=0, NotChecked=0, Total=552 [2024-09-08 15:14:04,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:14:04,372 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:14:04,373 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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) [2024-09-08 15:14:04,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:14:04,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 15:14:04,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:14:09,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:14:09,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 15:14:09,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:14:09,114 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-09-08 15:14:09,305 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,12 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:14:09,306 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-09-08 15:14:09,306 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:14:09,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1007876852, now seen corresponding path program 3 times [2024-09-08 15:14:09,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:14:09,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055308534] [2024-09-08 15:14:09,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:14:09,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:14:09,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:14:09,543 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 61 proven. 7 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-09-08 15:14:09,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:14:09,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055308534] [2024-09-08 15:14:09,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055308534] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 15:14:09,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [682695233] [2024-09-08 15:14:09,544 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-08 15:14:09,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:14:09,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:14:09,546 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 15:14:09,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-09-08 15:14:09,639 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-09-08 15:14:09,639 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 15:14:09,641 INFO L262 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-08 15:14:09,643 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:14:09,732 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-09-08 15:14:09,732 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-08 15:14:09,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [682695233] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 15:14:09,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-08 15:14:09,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 10 [2024-09-08 15:14:09,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003358365] [2024-09-08 15:14:09,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 15:14:09,733 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-08 15:14:09,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:14:09,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-08 15:14:09,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-09-08 15:14:09,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:14:09,735 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:14:09,735 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 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) [2024-09-08 15:14:09,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:14:09,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 15:14:09,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:14:09,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:14:13,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:14:13,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 15:14:13,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:14:13,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 15:14:13,481 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-09-08 15:14:13,668 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-09-08 15:14:13,668 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-09-08 15:14:13,669 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:14:13,669 INFO L85 PathProgramCache]: Analyzing trace with hash 879099762, now seen corresponding path program 4 times [2024-09-08 15:14:13,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:14:13,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110602039] [2024-09-08 15:14:13,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:14:13,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:14:13,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:14:15,072 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 35 proven. 127 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 15:14:15,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:14:15,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110602039] [2024-09-08 15:14:15,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110602039] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 15:14:15,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [169684763] [2024-09-08 15:14:15,073 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-08 15:14:15,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:14:15,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:14:15,077 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 15:14:15,078 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-09-08 15:14:15,187 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-08 15:14:15,187 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 15:14:15,188 INFO L262 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-08 15:14:15,190 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:14:15,507 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 77 proven. 62 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-09-08 15:14:15,507 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:14:15,645 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 77 proven. 14 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-09-08 15:14:15,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [169684763] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:14:15,645 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 15:14:15,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 13, 6] total 44 [2024-09-08 15:14:15,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424953680] [2024-09-08 15:14:15,646 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 15:14:15,646 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2024-09-08 15:14:15,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:14:15,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2024-09-08 15:14:15,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=1723, Unknown=0, NotChecked=0, Total=1892 [2024-09-08 15:14:15,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:14:15,648 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:14:15,648 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 4.840909090909091) internal successors, (213), 44 states have internal predecessors, (213), 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) [2024-09-08 15:14:15,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:14:15,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 15:14:15,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:14:15,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 15:14:15,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.