./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-more-dec-subseq.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-more-dec-subseq.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-more-dec-subseq.wvr.c ./goblint.2024-09-02_08-21-23.files/mutex-meet-local/popl20-more-dec-subseq.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 15:18:23,625 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-08 15:18:23,691 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-09-08 15:18:23,697 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-08 15:18:23,698 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-08 15:18:23,713 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-08 15:18:23,714 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-08 15:18:23,714 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-08 15:18:23,714 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-08 15:18:23,715 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-08 15:18:23,715 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-08 15:18:23,715 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-08 15:18:23,716 INFO L153 SettingsManager]: * Use SBE=true [2024-09-08 15:18:23,716 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-08 15:18:23,716 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-08 15:18:23,716 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-08 15:18:23,717 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-08 15:18:23,717 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-08 15:18:23,717 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-08 15:18:23,717 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-08 15:18:23,717 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-08 15:18:23,718 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-08 15:18:23,718 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-08 15:18:23,718 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-08 15:18:23,718 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-08 15:18:23,718 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-08 15:18:23,719 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-08 15:18:23,719 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-08 15:18:23,719 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-08 15:18:23,719 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-08 15:18:23,719 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-08 15:18:23,720 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-08 15:18:23,720 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-08 15:18:23,720 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-08 15:18:23,720 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-08 15:18:23,720 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-09-08 15:18:23,721 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-08 15:18:23,721 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-08 15:18:23,721 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-09-08 15:18:23,721 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-09-08 15:18:23,721 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-09-08 15:18:23,724 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-09-08 15:18:23,923 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-08 15:18:23,941 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-08 15:18:23,943 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-08 15:18:23,944 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-08 15:18:23,946 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-08 15:18:23,947 INFO L431 ainManager$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-more-dec-subseq.wvr.yml/witness.yml [2024-09-08 15:18:24,074 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-08 15:18:24,074 INFO L274 PluginConnector]: CDTParser initialized [2024-09-08 15:18:24,083 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-more-dec-subseq.wvr.c [2024-09-08 15:18:25,242 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-08 15:18:25,400 INFO L384 CDTParser]: Found 1 translation units. [2024-09-08 15:18:25,400 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-dec-subseq.wvr.c [2024-09-08 15:18:25,410 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/9cd5b09c6/a80b9c0cd32d4ba58a0623980dd158cf/FLAG291b63e0a [2024-09-08 15:18:25,810 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/9cd5b09c6/a80b9c0cd32d4ba58a0623980dd158cf [2024-09-08 15:18:25,810 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-08 15:18:25,811 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-08 15:18:25,811 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-08 15:18:25,812 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-08 15:18:25,815 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-08 15:18:25,816 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 03:18:24" (1/2) ... [2024-09-08 15:18:25,816 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@326383fa and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 03:18:25, skipping insertion in model container [2024-09-08 15:18:25,817 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 03:18:24" (1/2) ... [2024-09-08 15:18:25,818 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@16f4019f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 03:18:25, skipping insertion in model container [2024-09-08 15:18:25,818 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 03:18:25" (2/2) ... [2024-09-08 15:18:25,818 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@326383fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:18:25, skipping insertion in model container [2024-09-08 15:18:25,818 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 03:18:25" (2/2) ... [2024-09-08 15:18:25,845 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-08 15:18:25,845 INFO L1541 ArrayList]: Location invariant before [L58-L58] (((((((((((((((((((((((((((((((0 <= i) && (1 <= N)) && (N <= 1073741823)) && ((-1LL + (long long )N) + (long long )i >= 0LL)) && ((-1LL + (long long )N) + (long long )n >= 0LL)) && ((2147483647LL + (long long )N) + (long long )start >= 0LL)) && ((2147483647LL + (long long )N) + (long long )end >= 0LL)) && ((2147483648LL + (long long )n) + (long long )start >= 0LL)) && ((2147483648LL + (long long )end) + (long long )n >= 0LL)) && ((1073741823LL - (long long )N) + (long long )i >= 0LL)) && ((1073741823LL - (long long )N) + (long long )n >= 0LL)) && ((2147483647LL - (long long )end) + (long long )i >= 0LL)) && ((2147483647LL - (long long )end) + (long long )n >= 0LL)) && ((3221225471LL - (long long )N) + (long long )start >= 0LL)) && ((3221225471LL - (long long )N) + (long long )end >= 0LL)) && ((3221225471LL - (long long )n) + (long long )start >= 0LL)) && ((4294967295LL - (long long )end) + (long long )start >= 0LL)) && ((long long )i + (long long )n >= 0LL)) && ((1073741822LL + (long long )N) - (long long )n >= 0LL)) && ((1073741823LL + (long long )i) - (long long )n >= 0LL)) && ((2147483646LL + (long long )N) - (long long )start >= 0LL)) && ((2147483646LL + (long long )N) - (long long )end >= 0LL)) && ((2147483647LL + (long long )i) - (long long )start >= 0LL)) && ((2147483647LL + (long long )n) - (long long )start >= 0LL)) && ((3221225471LL + (long long )end) - (long long )n >= 0LL)) && ((4294967295LL + (long long )end) - (long long )start >= 0LL)) && ((2147483646LL - (long long )N) - (long long )n >= 0LL)) && ((3221225470LL - (long long )N) - (long long )start >= 0LL)) && ((3221225470LL - (long long )N) - (long long )end >= 0LL)) && ((3221225470LL - (long long )n) - (long long )start >= 0LL)) && ((3221225470LL - (long long )end) - (long long )n >= 0LL)) && ((4294967294LL - (long long )end) - (long long )start >= 0LL) [2024-09-08 15:18:25,846 INFO L1541 ArrayList]: Location invariant before [L51-L51] (((((((((((((((((((((((((((((((0 <= i) && (1 <= N)) && (N <= 1073741823)) && ((-1LL + (long long )N) + (long long )i >= 0LL)) && ((-1LL + (long long )N) + (long long )n >= 0LL)) && ((2147483647LL + (long long )N) + (long long )start >= 0LL)) && ((2147483647LL + (long long )N) + (long long )end >= 0LL)) && ((2147483648LL + (long long )n) + (long long )start >= 0LL)) && ((2147483648LL + (long long )end) + (long long )n >= 0LL)) && ((1073741823LL - (long long )N) + (long long )i >= 0LL)) && ((1073741823LL - (long long )N) + (long long )n >= 0LL)) && ((2147483647LL - (long long )end) + (long long )i >= 0LL)) && ((2147483647LL - (long long )end) + (long long )n >= 0LL)) && ((3221225471LL - (long long )N) + (long long )start >= 0LL)) && ((3221225471LL - (long long )N) + (long long )end >= 0LL)) && ((3221225471LL - (long long )n) + (long long )start >= 0LL)) && ((4294967295LL - (long long )end) + (long long )start >= 0LL)) && ((long long )i + (long long )n >= 0LL)) && ((1073741822LL + (long long )N) - (long long )n >= 0LL)) && ((1073741823LL + (long long )i) - (long long )n >= 0LL)) && ((2147483646LL + (long long )N) - (long long )start >= 0LL)) && ((2147483646LL + (long long )N) - (long long )end >= 0LL)) && ((2147483647LL + (long long )i) - (long long )start >= 0LL)) && ((2147483647LL + (long long )n) - (long long )start >= 0LL)) && ((3221225471LL + (long long )end) - (long long )n >= 0LL)) && ((4294967295LL + (long long )end) - (long long )start >= 0LL)) && ((2147483646LL - (long long )N) - (long long )n >= 0LL)) && ((3221225470LL - (long long )N) - (long long )start >= 0LL)) && ((3221225470LL - (long long )N) - (long long )end >= 0LL)) && ((3221225470LL - (long long )n) - (long long )start >= 0LL)) && ((3221225470LL - (long long )end) - (long long )n >= 0LL)) && ((4294967294LL - (long long )end) - (long long )start >= 0LL) [2024-09-08 15:18:25,846 INFO L1541 ArrayList]: Location invariant before [L78-L78] (((((((((((((((((((((((((((((((0 <= i) && (1 <= N)) && (N <= 1073741823)) && ((-1LL + (long long )N) + (long long )i >= 0LL)) && ((-1LL + (long long )N) + (long long )n >= 0LL)) && ((2147483647LL + (long long )N) + (long long )start >= 0LL)) && ((2147483647LL + (long long )N) + (long long )end >= 0LL)) && ((2147483648LL + (long long )n) + (long long )start >= 0LL)) && ((2147483648LL + (long long )end) + (long long )n >= 0LL)) && ((1073741823LL - (long long )N) + (long long )i >= 0LL)) && ((1073741823LL - (long long )N) + (long long )n >= 0LL)) && ((2147483647LL - (long long )end) + (long long )i >= 0LL)) && ((2147483647LL - (long long )end) + (long long )n >= 0LL)) && ((3221225471LL - (long long )N) + (long long )start >= 0LL)) && ((3221225471LL - (long long )N) + (long long )end >= 0LL)) && ((3221225471LL - (long long )n) + (long long )start >= 0LL)) && ((4294967295LL - (long long )end) + (long long )start >= 0LL)) && ((long long )i + (long long )n >= 0LL)) && ((1073741822LL + (long long )N) - (long long )n >= 0LL)) && ((1073741823LL + (long long )i) - (long long )n >= 0LL)) && ((2147483646LL + (long long )N) - (long long )start >= 0LL)) && ((2147483646LL + (long long )N) - (long long )end >= 0LL)) && ((2147483647LL + (long long )i) - (long long )start >= 0LL)) && ((2147483647LL + (long long )n) - (long long )start >= 0LL)) && ((3221225471LL + (long long )end) - (long long )n >= 0LL)) && ((4294967295LL + (long long )end) - (long long )start >= 0LL)) && ((2147483646LL - (long long )N) - (long long )n >= 0LL)) && ((3221225470LL - (long long )N) - (long long )start >= 0LL)) && ((3221225470LL - (long long )N) - (long long )end >= 0LL)) && ((3221225470LL - (long long )n) - (long long )start >= 0LL)) && ((3221225470LL - (long long )end) - (long long )n >= 0LL)) && ((4294967294LL - (long long )end) - (long long )start >= 0LL) [2024-09-08 15:18:25,846 INFO L1541 ArrayList]: Location invariant before [L71-L71] (((((((((((((((((((((((((((((((0 <= i) && (1 <= N)) && (N <= 1073741823)) && ((-1LL + (long long )N) + (long long )i >= 0LL)) && ((-1LL + (long long )N) + (long long )n >= 0LL)) && ((2147483647LL + (long long )N) + (long long )start >= 0LL)) && ((2147483647LL + (long long )N) + (long long )end >= 0LL)) && ((2147483648LL + (long long )n) + (long long )start >= 0LL)) && ((2147483648LL + (long long )end) + (long long )n >= 0LL)) && ((1073741823LL - (long long )N) + (long long )i >= 0LL)) && ((1073741823LL - (long long )N) + (long long )n >= 0LL)) && ((2147483647LL - (long long )end) + (long long )i >= 0LL)) && ((2147483647LL - (long long )end) + (long long )n >= 0LL)) && ((3221225471LL - (long long )N) + (long long )start >= 0LL)) && ((3221225471LL - (long long )N) + (long long )end >= 0LL)) && ((3221225471LL - (long long )n) + (long long )start >= 0LL)) && ((4294967295LL - (long long )end) + (long long )start >= 0LL)) && ((long long )i + (long long )n >= 0LL)) && ((1073741822LL + (long long )N) - (long long )n >= 0LL)) && ((1073741823LL + (long long )i) - (long long )n >= 0LL)) && ((2147483646LL + (long long )N) - (long long )start >= 0LL)) && ((2147483646LL + (long long )N) - (long long )end >= 0LL)) && ((2147483647LL + (long long )i) - (long long )start >= 0LL)) && ((2147483647LL + (long long )n) - (long long )start >= 0LL)) && ((3221225471LL + (long long )end) - (long long )n >= 0LL)) && ((4294967295LL + (long long )end) - (long long )start >= 0LL)) && ((2147483646LL - (long long )N) - (long long )n >= 0LL)) && ((3221225470LL - (long long )N) - (long long )start >= 0LL)) && ((3221225470LL - (long long )N) - (long long )end >= 0LL)) && ((3221225470LL - (long long )n) - (long long )start >= 0LL)) && ((3221225470LL - (long long )end) - (long long )n >= 0LL)) && ((4294967294LL - (long long )end) - (long long )start >= 0LL) [2024-09-08 15:18:25,846 INFO L1541 ArrayList]: Location invariant before [L67-L67] (((((((((((((((((((((((((((((((0 <= i) && (1 <= N)) && (N <= 1073741823)) && ((-1LL + (long long )N) + (long long )i >= 0LL)) && ((-1LL + (long long )N) + (long long )n >= 0LL)) && ((2147483647LL + (long long )N) + (long long )start >= 0LL)) && ((2147483647LL + (long long )N) + (long long )end >= 0LL)) && ((2147483648LL + (long long )n) + (long long )start >= 0LL)) && ((2147483648LL + (long long )end) + (long long )n >= 0LL)) && ((1073741823LL - (long long )N) + (long long )i >= 0LL)) && ((1073741823LL - (long long )N) + (long long )n >= 0LL)) && ((2147483647LL - (long long )end) + (long long )i >= 0LL)) && ((2147483647LL - (long long )end) + (long long )n >= 0LL)) && ((3221225471LL - (long long )N) + (long long )start >= 0LL)) && ((3221225471LL - (long long )N) + (long long )end >= 0LL)) && ((3221225471LL - (long long )n) + (long long )start >= 0LL)) && ((4294967295LL - (long long )end) + (long long )start >= 0LL)) && ((long long )i + (long long )n >= 0LL)) && ((1073741822LL + (long long )N) - (long long )n >= 0LL)) && ((1073741823LL + (long long )i) - (long long )n >= 0LL)) && ((2147483646LL + (long long )N) - (long long )start >= 0LL)) && ((2147483646LL + (long long )N) - (long long )end >= 0LL)) && ((2147483647LL + (long long )i) - (long long )start >= 0LL)) && ((2147483647LL + (long long )n) - (long long )start >= 0LL)) && ((3221225471LL + (long long )end) - (long long )n >= 0LL)) && ((4294967295LL + (long long )end) - (long long )start >= 0LL)) && ((2147483646LL - (long long )N) - (long long )n >= 0LL)) && ((3221225470LL - (long long )N) - (long long )start >= 0LL)) && ((3221225470LL - (long long )N) - (long long )end >= 0LL)) && ((3221225470LL - (long long )n) - (long long )start >= 0LL)) && ((3221225470LL - (long long )end) - (long long )n >= 0LL)) && ((4294967294LL - (long long )end) - (long long )start >= 0LL) [2024-09-08 15:18:25,879 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-08 15:18:26,059 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-more-dec-subseq.wvr.c[2950,2963] [2024-09-08 15:18:26,072 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-08 15:18:26,081 INFO L200 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-09-08 15:18:26,153 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-more-dec-subseq.wvr.c[2950,2963] [2024-09-08 15:18:26,155 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-08 15:18:26,167 INFO L204 MainTranslator]: Completed translation [2024-09-08 15:18:26,167 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:18:26 WrapperNode [2024-09-08 15:18:26,167 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-08 15:18:26,168 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-08 15:18:26,168 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-08 15:18:26,168 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-08 15:18:26,172 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:18:26" (1/1) ... [2024-09-08 15:18:26,181 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:18:26" (1/1) ... [2024-09-08 15:18:26,221 INFO L138 Inliner]: procedures = 23, calls = 35, calls flagged for inlining = 11, calls inlined = 13, statements flattened = 197 [2024-09-08 15:18:26,224 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-08 15:18:26,225 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-08 15:18:26,225 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-08 15:18:26,225 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-08 15:18:26,232 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:18:26" (1/1) ... [2024-09-08 15:18:26,233 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:18:26" (1/1) ... [2024-09-08 15:18:26,236 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:18:26" (1/1) ... [2024-09-08 15:18:26,240 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:18:26" (1/1) ... [2024-09-08 15:18:26,249 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:18:26" (1/1) ... [2024-09-08 15:18:26,256 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:18:26" (1/1) ... [2024-09-08 15:18:26,257 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:18:26" (1/1) ... [2024-09-08 15:18:26,262 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:18:26" (1/1) ... [2024-09-08 15:18:26,264 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-08 15:18:26,269 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-08 15:18:26,269 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-08 15:18:26,269 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-08 15:18:26,269 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:18:26" (1/1) ... [2024-09-08 15:18:26,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-08 15:18:26,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:18:26,293 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 15:18:26,295 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 15:18:26,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-08 15:18:26,332 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-09-08 15:18:26,332 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-09-08 15:18:26,333 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-09-08 15:18:26,333 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-09-08 15:18:26,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-08 15:18:26,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-08 15:18:26,333 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-09-08 15:18:26,333 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-09-08 15:18:26,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-09-08 15:18:26,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-08 15:18:26,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-08 15:18:26,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-08 15:18:26,335 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 15:18:26,415 INFO L242 CfgBuilder]: Building ICFG [2024-09-08 15:18:26,416 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-08 15:18:26,777 INFO L287 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-09-08 15:18:26,777 INFO L291 CfgBuilder]: Performing block encoding [2024-09-08 15:18:27,029 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-08 15:18:27,029 INFO L318 CfgBuilder]: Removed 4 assume(true) statements. [2024-09-08 15:18:27,029 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 03:18:27 BoogieIcfgContainer [2024-09-08 15:18:27,030 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-08 15:18:27,031 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-08 15:18:27,031 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-08 15:18:27,034 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-08 15:18:27,034 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 03:18:24" (1/4) ... [2024-09-08 15:18:27,034 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7274f6ff and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 08.09 03:18:27, skipping insertion in model container [2024-09-08 15:18:27,034 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 03:18:25" (2/4) ... [2024-09-08 15:18:27,035 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7274f6ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 03:18:27, skipping insertion in model container [2024-09-08 15:18:27,035 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:18:26" (3/4) ... [2024-09-08 15:18:27,035 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7274f6ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 03:18:27, skipping insertion in model container [2024-09-08 15:18:27,035 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 03:18:27" (4/4) ... [2024-09-08 15:18:27,036 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-dec-subseq.wvr.c [2024-09-08 15:18:27,053 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-08 15:18:27,054 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-09-08 15:18:27,054 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-09-08 15:18:27,101 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-09-08 15:18:27,133 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 15:18:27,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-08 15:18:27,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:18:27,136 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 15:18:27,136 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 15:18:27,161 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-08 15:18:27,173 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread2Thread1of1ForFork1 ======== [2024-09-08 15:18:27,178 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;@190bd7b5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 15:18:27,179 INFO L337 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-09-08 15:18:27,258 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 15:18:27,261 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:18:27,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1462383417, now seen corresponding path program 1 times [2024-09-08 15:18:27,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:18:27,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409962059] [2024-09-08 15:18:27,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:18:27,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:18:27,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:18:27,636 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 15:18:27,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:18:27,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409962059] [2024-09-08 15:18:27,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409962059] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 15:18:27,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 15:18:27,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-08 15:18:27,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563300107] [2024-09-08 15:18:27,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 15:18:27,643 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-08 15:18:27,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:18:27,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-08 15:18:27,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-08 15:18:27,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:18:27,664 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:18:27,665 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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 15:18:27,665 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:18:27,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:18:27,696 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-08 15:18:27,697 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 15:18:27,697 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:18:27,697 INFO L85 PathProgramCache]: Analyzing trace with hash 823918019, now seen corresponding path program 1 times [2024-09-08 15:18:27,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:18:27,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173277238] [2024-09-08 15:18:27,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:18:27,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:18:27,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:18:28,268 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 15:18:28,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:18:28,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173277238] [2024-09-08 15:18:28,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173277238] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 15:18:28,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [90771340] [2024-09-08 15:18:28,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:18:28,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:18:28,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:18:28,294 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 15:18:28,296 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 15:18:28,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:18:28,359 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-09-08 15:18:28,363 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:18:28,543 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 15:18:28,543 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:18:29,674 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 15:18:29,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [90771340] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:18:29,675 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 15:18:29,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 12 [2024-09-08 15:18:29,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804161119] [2024-09-08 15:18:29,676 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 15:18:29,676 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-08 15:18:29,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:18:29,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-08 15:18:29,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2024-09-08 15:18:29,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:18:29,678 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:18:29,679 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 13 states have internal predecessors, (30), 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 15:18:29,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:18:29,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:18:29,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:18:29,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:18:29,919 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-09-08 15:18:30,107 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 15:18:30,108 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 15:18:30,108 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:18:30,108 INFO L85 PathProgramCache]: Analyzing trace with hash -71669853, now seen corresponding path program 1 times [2024-09-08 15:18:30,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:18:30,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238584604] [2024-09-08 15:18:30,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:18:30,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:18:30,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:18:30,644 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 15:18:30,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:18:30,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238584604] [2024-09-08 15:18:30,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238584604] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 15:18:30,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1952557189] [2024-09-08 15:18:30,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:18:30,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:18:30,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:18:30,648 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 15:18:30,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-08 15:18:30,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:18:30,729 INFO L262 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-09-08 15:18:30,730 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:18:30,909 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 15:18:30,909 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:18:31,932 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 15:18:31,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1952557189] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:18:31,932 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 15:18:31,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2024-09-08 15:18:31,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341247436] [2024-09-08 15:18:31,933 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 15:18:31,933 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-09-08 15:18:31,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:18:31,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-09-08 15:18:31,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2024-09-08 15:18:31,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:18:31,935 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:18:31,935 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 1.7647058823529411) internal successors, (30), 17 states have internal predecessors, (30), 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 15:18:31,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:18:31,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:18:31,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:18:32,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:18:32,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:18:32,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:18:32,238 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-09-08 15:18:32,429 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:18:32,430 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 15:18:32,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:18:32,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1208200349, now seen corresponding path program 2 times [2024-09-08 15:18:32,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:18:32,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906973229] [2024-09-08 15:18:32,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:18:32,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:18:32,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:18:33,019 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 15:18:33,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:18:33,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906973229] [2024-09-08 15:18:33,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906973229] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 15:18:33,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [273901792] [2024-09-08 15:18:33,020 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-08 15:18:33,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:18:33,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:18:33,021 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 15:18:33,022 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 15:18:33,079 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-09-08 15:18:33,079 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 15:18:33,080 INFO L262 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-09-08 15:18:33,081 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:18:33,306 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-09-08 15:18:33,307 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-08 15:18:33,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [273901792] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 15:18:33,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-08 15:18:33,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 13 [2024-09-08 15:18:33,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915976780] [2024-09-08 15:18:33,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 15:18:33,307 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-08 15:18:33,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:18:33,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-08 15:18:33,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2024-09-08 15:18:33,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:18:33,308 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:18:33,308 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 15:18:33,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:18:33,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:18:33,309 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:18:33,309 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:18:34,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:18:34,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:18:34,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-08 15:18:34,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 15:18:34,649 INFO L785 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 3 remaining) [2024-09-08 15:18:34,649 INFO L785 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 3 remaining) [2024-09-08 15:18:34,649 INFO L785 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 3 remaining) [2024-09-08 15:18:34,661 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-09-08 15:18:34,850 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 15:18:34,855 INFO L408 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-09-08 15:18:34,856 INFO L312 ceAbstractionStarter]: Result for error location thread2Thread1of1ForFork1 was SAFE,SAFE,SAFE (1/3) [2024-09-08 15:18:34,861 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 15:18:34,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-08 15:18:34,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:18:34,864 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 15:18:34,865 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 15:18:34,866 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-08 15:18:34,867 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread1Thread1of1ForFork0 ======== [2024-09-08 15:18:34,867 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;@190bd7b5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 15:18:34,867 INFO L337 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-09-08 15:18:34,900 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 15:18:34,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:18:34,901 INFO L85 PathProgramCache]: Analyzing trace with hash 2097471327, now seen corresponding path program 1 times [2024-09-08 15:18:34,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:18:34,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375052513] [2024-09-08 15:18:34,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:18:34,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:18:34,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:18:34,986 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 15:18:34,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:18:34,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375052513] [2024-09-08 15:18:34,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375052513] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 15:18:34,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 15:18:34,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-08 15:18:34,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543842690] [2024-09-08 15:18:34,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 15:18:34,987 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-08 15:18:34,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:18:34,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-08 15:18:34,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-08 15:18:34,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:18:34,988 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:18:34,988 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 15:18:34,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:18:35,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:18:35,012 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-09-08 15:18:35,012 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 15:18:35,013 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:18:35,013 INFO L85 PathProgramCache]: Analyzing trace with hash 613560923, now seen corresponding path program 1 times [2024-09-08 15:18:35,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:18:35,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510400629] [2024-09-08 15:18:35,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:18:35,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:18:35,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:18:35,373 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 15:18:35,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:18:35,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510400629] [2024-09-08 15:18:35,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510400629] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 15:18:35,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [215505640] [2024-09-08 15:18:35,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:18:35,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:18:35,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:18:35,377 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 15:18:35,378 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 15:18:35,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:18:35,436 INFO L262 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-09-08 15:18:35,437 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:18:35,578 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 15:18:35,579 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:18:36,443 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 15:18:36,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [215505640] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:18:36,444 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 15:18:36,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2024-09-08 15:18:36,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878429931] [2024-09-08 15:18:36,444 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 15:18:36,444 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-08 15:18:36,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:18:36,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-08 15:18:36,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2024-09-08 15:18:36,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:18:36,445 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:18:36,445 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.4285714285714284) internal successors, (34), 13 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 15:18:36,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:18:36,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:18:36,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:18:36,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:18:36,663 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 15:18:36,851 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 15:18:36,852 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 15:18:36,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:18:36,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1143516219, now seen corresponding path program 1 times [2024-09-08 15:18:36,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:18:36,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451049851] [2024-09-08 15:18:36,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:18:36,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:18:36,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:18:37,293 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 15:18:37,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:18:37,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451049851] [2024-09-08 15:18:37,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451049851] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 15:18:37,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [468357794] [2024-09-08 15:18:37,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:18:37,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:18:37,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:18:37,295 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 15:18:37,296 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-09-08 15:18:37,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:18:37,353 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-09-08 15:18:37,354 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:18:37,497 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 15:18:37,498 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:18:38,411 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 15:18:38,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [468357794] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:18:38,411 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 15:18:38,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 17 [2024-09-08 15:18:38,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073914972] [2024-09-08 15:18:38,411 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 15:18:38,412 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-09-08 15:18:38,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:18:38,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-09-08 15:18:38,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2024-09-08 15:18:38,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:18:38,412 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:18:38,413 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 17 states have internal predecessors, (39), 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 15:18:38,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:18:38,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:18:38,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:18:38,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:18:38,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:18:38,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:18:38,731 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-09-08 15:18:38,919 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-09-08 15:18:38,919 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 15:18:38,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:18:38,920 INFO L85 PathProgramCache]: Analyzing trace with hash -233916421, now seen corresponding path program 2 times [2024-09-08 15:18:38,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:18:38,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912712280] [2024-09-08 15:18:38,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:18:38,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:18:38,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:18:39,514 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 15:18:39,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:18:39,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912712280] [2024-09-08 15:18:39,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912712280] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 15:18:39,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2010636047] [2024-09-08 15:18:39,514 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-08 15:18:39,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:18:39,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:18:39,516 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 15:18:39,517 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 15:18:39,586 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-09-08 15:18:39,586 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 15:18:39,587 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-09-08 15:18:39,588 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:18:39,808 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-09-08 15:18:39,808 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-08 15:18:39,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2010636047] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 15:18:39,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-08 15:18:39,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11] total 14 [2024-09-08 15:18:39,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653528122] [2024-09-08 15:18:39,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 15:18:39,809 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-08 15:18:39,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:18:39,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-08 15:18:39,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2024-09-08 15:18:39,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:18:39,810 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:18:39,810 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 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 15:18:39,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:18:39,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:18:39,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:18:39,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:18:40,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:18:40,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:18:40,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-08 15:18:40,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 15:18:40,995 INFO L785 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 2 remaining) [2024-09-08 15:18:40,995 INFO L785 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 2 remaining) [2024-09-08 15:18:41,009 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 15:18:41,195 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 15:18:41,197 INFO L408 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-09-08 15:18:41,197 INFO L312 ceAbstractionStarter]: Result for error location thread1Thread1of1ForFork0 was SAFE,SAFE (2/3) [2024-09-08 15:18:41,200 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 15:18:41,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-08 15:18:41,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:18:41,201 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 15:18:41,201 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 15:18:41,203 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-08 15:18:41,203 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-09-08 15:18:41,204 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;@190bd7b5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 15:18:41,204 INFO L337 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-09-08 15:18:41,331 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-08 15:18:41,332 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:18:41,332 INFO L85 PathProgramCache]: Analyzing trace with hash -377615301, now seen corresponding path program 1 times [2024-09-08 15:18:41,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:18:41,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662486484] [2024-09-08 15:18:41,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:18:41,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:18:41,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:18:41,398 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 15:18:41,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:18:41,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662486484] [2024-09-08 15:18:41,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662486484] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 15:18:41,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 15:18:41,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-08 15:18:41,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974875332] [2024-09-08 15:18:41,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 15:18:41,399 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-08 15:18:41,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:18:41,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-08 15:18:41,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-08 15:18:41,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:18:41,399 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:18:41,399 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 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 15:18:41,399 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:18:41,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:18:41,455 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-09-08 15:18:41,455 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-08 15:18:41,455 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:18:41,455 INFO L85 PathProgramCache]: Analyzing trace with hash -1636482676, now seen corresponding path program 1 times [2024-09-08 15:18:41,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:18:41,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755624763] [2024-09-08 15:18:41,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:18:41,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:18:41,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:18:41,525 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-08 15:18:41,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:18:41,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755624763] [2024-09-08 15:18:41,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755624763] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 15:18:41,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 15:18:41,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-08 15:18:41,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695057886] [2024-09-08 15:18:41,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 15:18:41,526 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-08 15:18:41,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:18:41,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-08 15:18:41,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-08 15:18:41,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:18:41,526 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:18:41,526 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 15:18:41,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:18:41,527 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:18:41,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:18:41,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:18:41,577 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-09-08 15:18:41,577 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-08 15:18:41,577 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:18:41,578 INFO L85 PathProgramCache]: Analyzing trace with hash 2095454214, now seen corresponding path program 1 times [2024-09-08 15:18:41,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:18:41,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957991597] [2024-09-08 15:18:41,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:18:41,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:18:41,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:18:41,636 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-08 15:18:41,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:18:41,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957991597] [2024-09-08 15:18:41,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957991597] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 15:18:41,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 15:18:41,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-08 15:18:41,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673192340] [2024-09-08 15:18:41,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 15:18:41,636 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-08 15:18:41,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:18:41,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-08 15:18:41,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-08 15:18:41,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:18:41,637 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:18:41,637 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 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 15:18:41,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:18:41,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:18:41,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:18:41,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:18:41,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:18:41,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:18:41,687 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-09-08 15:18:41,687 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-08 15:18:41,688 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:18:41,688 INFO L85 PathProgramCache]: Analyzing trace with hash 497952485, now seen corresponding path program 1 times [2024-09-08 15:18:41,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:18:41,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694627708] [2024-09-08 15:18:41,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:18:41,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:18:41,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:18:41,812 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-08 15:18:41,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:18:41,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694627708] [2024-09-08 15:18:41,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694627708] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 15:18:41,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [495031925] [2024-09-08 15:18:41,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:18:41,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:18:41,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:18:41,815 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 15:18:41,816 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 15:18:41,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:18:41,898 INFO L262 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-08 15:18:41,900 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:18:41,948 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-08 15:18:41,949 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:18:42,020 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-08 15:18:42,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [495031925] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:18:42,020 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 15:18:42,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-09-08 15:18:42,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214265167] [2024-09-08 15:18:42,020 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 15:18:42,021 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-08 15:18:42,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:18:42,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-08 15:18:42,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-09-08 15:18:42,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:18:42,022 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:18:42,022 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 states have internal predecessors, (58), 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 15:18:42,022 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:18:42,022 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:18:42,022 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:18:42,022 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:18:42,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:18:42,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:18:42,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:18:42,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:18:42,125 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 15:18:42,316 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,SelfDestructingSolverStorable11 [2024-09-08 15:18:42,317 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-08 15:18:42,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:18:42,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1362549516, now seen corresponding path program 2 times [2024-09-08 15:18:42,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:18:42,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664567276] [2024-09-08 15:18:42,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:18:42,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:18:42,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:18:42,426 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-08 15:18:42,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:18:42,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664567276] [2024-09-08 15:18:42,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664567276] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 15:18:42,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1145874719] [2024-09-08 15:18:42,426 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-08 15:18:42,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:18:42,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:18:42,429 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 15:18:42,430 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 15:18:42,524 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-08 15:18:42,524 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 15:18:42,526 INFO L262 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-08 15:18:42,528 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:18:42,600 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-08 15:18:42,600 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:18:42,672 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-08 15:18:42,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1145874719] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:18:42,672 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 15:18:42,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2024-09-08 15:18:42,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910396214] [2024-09-08 15:18:42,673 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 15:18:42,673 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-08 15:18:42,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:18:42,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-08 15:18:42,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2024-09-08 15:18:42,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:18:42,674 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:18:42,674 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.230769230769231) internal successors, (55), 12 states have internal predecessors, (55), 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 15:18:42,674 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:18:42,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:18:42,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:18:42,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:18:42,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:18:42,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:18:42,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:18:42,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:18:42,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:18:42,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 15:18:42,803 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 15:18:42,991 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,12 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:18:42,991 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-08 15:18:42,992 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:18:42,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1691185328, now seen corresponding path program 3 times [2024-09-08 15:18:42,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:18:42,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360031375] [2024-09-08 15:18:42,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:18:42,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:18:43,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:18:43,193 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-08 15:18:43,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:18:43,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360031375] [2024-09-08 15:18:43,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360031375] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 15:18:43,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 15:18:43,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-08 15:18:43,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290939906] [2024-09-08 15:18:43,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 15:18:43,194 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-08 15:18:43,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:18:43,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-08 15:18:43,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-08 15:18:43,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:18:43,194 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:18:43,194 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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 15:18:43,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:18:43,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:18:43,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:18:43,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:18:43,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-08 15:18:43,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:18:43,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:18:43,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:18:43,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:18:43,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:18:43,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 15:18:43,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 15:18:43,292 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-09-08 15:18:43,292 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-08 15:18:43,292 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:18:43,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1828411305, now seen corresponding path program 4 times [2024-09-08 15:18:43,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:18:43,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792778058] [2024-09-08 15:18:43,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:18:43,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:18:43,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:18:43,479 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 18 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-08 15:18:43,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:18:43,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792778058] [2024-09-08 15:18:43,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792778058] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 15:18:43,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1413758727] [2024-09-08 15:18:43,480 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-08 15:18:43,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:18:43,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:18:43,482 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 15:18:43,483 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 15:18:43,587 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-08 15:18:43,587 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 15:18:43,589 INFO L262 TraceCheckSpWp]: Trace formula consists of 614 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-08 15:18:43,592 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:18:43,713 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 24 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-08 15:18:43,713 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:18:43,810 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 24 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-08 15:18:43,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1413758727] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:18:43,810 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 15:18:43,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 20 [2024-09-08 15:18:43,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195386117] [2024-09-08 15:18:43,810 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 15:18:43,810 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-09-08 15:18:43,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:18:43,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-09-08 15:18:43,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=329, Unknown=0, NotChecked=0, Total=420 [2024-09-08 15:18:43,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:18:43,811 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:18:43,811 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 4.761904761904762) internal successors, (100), 20 states have internal predecessors, (100), 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 15:18:43,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:18:43,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:18:43,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:18:43,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:18:43,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-08 15:18:43,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 15:18:43,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:18:44,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:18:44,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:18:44,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:18:44,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:18:44,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 15:18:44,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 15:18:44,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-08 15:18:44,024 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-09-08 15:18:44,202 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,SelfDestructingSolverStorable14 [2024-09-08 15:18:44,203 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-08 15:18:44,203 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:18:44,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1600792414, now seen corresponding path program 5 times [2024-09-08 15:18:44,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:18:44,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3881170] [2024-09-08 15:18:44,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:18:44,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:18:44,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:18:44,355 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-09-08 15:18:44,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:18:44,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3881170] [2024-09-08 15:18:44,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3881170] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 15:18:44,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 15:18:44,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-08 15:18:44,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492673762] [2024-09-08 15:18:44,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 15:18:44,356 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-08 15:18:44,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:18:44,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-08 15:18:44,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-08 15:18:44,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:18:44,357 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:18:44,357 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 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 15:18:44,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:18:44,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:18:44,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:18:44,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:18:44,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-08 15:18:44,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 15:18:44,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-09-08 15:18:44,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:18:44,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:18:44,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:18:44,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:18:44,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:18:44,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 15:18:44,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 15:18:44,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-08 15:18:44,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:18:44,578 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-09-08 15:18:44,578 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-08 15:18:44,578 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:18:44,578 INFO L85 PathProgramCache]: Analyzing trace with hash 127964247, now seen corresponding path program 6 times [2024-09-08 15:18:44,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:18:44,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551928350] [2024-09-08 15:18:44,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:18:44,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:18:44,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:18:44,698 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-08 15:18:44,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:18:44,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551928350] [2024-09-08 15:18:44,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551928350] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 15:18:44,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1544858694] [2024-09-08 15:18:44,698 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-08 15:18:44,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:18:44,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:18:44,700 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 15:18:44,701 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 15:18:44,795 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2024-09-08 15:18:44,795 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 15:18:44,796 INFO L262 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-08 15:18:44,802 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:18:44,896 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-08 15:18:44,897 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:18:44,971 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-08 15:18:44,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1544858694] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:18:44,971 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 15:18:44,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 17 [2024-09-08 15:18:44,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144413504] [2024-09-08 15:18:44,972 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 15:18:44,972 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-09-08 15:18:44,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:18:44,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-09-08 15:18:44,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-09-08 15:18:44,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:18:44,973 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:18:44,973 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.166666666666667) internal successors, (75), 17 states have internal predecessors, (75), 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 15:18:44,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:18:44,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:18:44,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:18:44,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:18:44,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-08 15:18:44,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 15:18:44,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-09-08 15:18:44,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:18:44,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:18:45,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:18:45,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:18:45,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:18:45,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:18:45,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 15:18:45,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 15:18:45,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-08 15:18:45,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:18:45,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:18:45,207 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-09-08 15:18:45,395 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-09-08 15:18:45,395 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-08 15:18:45,395 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:18:45,395 INFO L85 PathProgramCache]: Analyzing trace with hash 267548471, now seen corresponding path program 7 times [2024-09-08 15:18:45,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:18:45,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770564929] [2024-09-08 15:18:45,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:18:45,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:18:45,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:18:47,965 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-08 15:18:47,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:18:47,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770564929] [2024-09-08 15:18:47,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770564929] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 15:18:47,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1067340879] [2024-09-08 15:18:47,966 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-08 15:18:47,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:18:47,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:18:47,968 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 15:18:47,968 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-09-08 15:18:48,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:18:48,087 INFO L262 TraceCheckSpWp]: Trace formula consists of 708 conjuncts, 64 conjuncts are in the unsatisfiable core [2024-09-08 15:18:48,089 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:18:49,950 INFO L349 Elim1Store]: treesize reduction 44, result has 72.0 percent of original size [2024-09-08 15:18:49,951 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 90 treesize of output 134 [2024-09-08 15:18:50,096 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-08 15:18:50,096 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:19:05,107 WARN L293 SmtUtils]: Spent 11.95s on a formula simplification. DAG size of input: 1086 DAG size of output: 951 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-09-08 15:19:05,108 INFO L349 Elim1Store]: treesize reduction 555, result has 87.6 percent of original size [2024-09-08 15:19:05,108 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 27 select indices, 27 select index equivalence classes, 0 disjoint index pairs (out of 351 index pairs), introduced 27 new quantified variables, introduced 351 case distinctions, treesize of input 477 treesize of output 4034 [2024-09-08 15:25:15,117 WARN L249 Executor]: External (MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2024-09-08 15:25:15,117 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2024-09-08 15:25:15,119 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2024-09-08 15:25:15,132 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-09-08 15:25:15,322 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-09-08 15:25:15,323 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:277) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:48) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.checkRedundancy(SimplifyDDA2.java:287) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convertForPreprocessedInputTerms(SimplifyDDA2.java:519) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:503) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.simplify(SimplifyDDA2.java:609) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:252) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:324) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify(QuantifierPusher.java:731) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:255) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:338) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:283) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:51) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:399) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:271) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:341) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:184) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:110) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:410) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:327) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:421) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:307) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:231) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 69 more [2024-09-08 15:25:15,327 INFO L158 Benchmark]: Toolchain (without parser) took 409516.02ms. Allocated memory was 182.5MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 109.1MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 1.0GB. Max. memory is 16.1GB. [2024-09-08 15:25:15,327 INFO L158 Benchmark]: Witness Parser took 0.37ms. Allocated memory is still 96.5MB. Free memory is still 50.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-08 15:25:15,327 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 182.5MB. Free memory is still 155.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-08 15:25:15,327 INFO L158 Benchmark]: CACSL2BoogieTranslator took 355.94ms. Allocated memory is still 182.5MB. Free memory was 109.1MB in the beginning and 142.3MB in the end (delta: -33.2MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. [2024-09-08 15:25:15,327 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.40ms. Allocated memory is still 182.5MB. Free memory was 142.3MB in the beginning and 138.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-09-08 15:25:15,327 INFO L158 Benchmark]: Boogie Preprocessor took 43.29ms. Allocated memory is still 182.5MB. Free memory was 138.1MB in the beginning and 136.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-08 15:25:15,328 INFO L158 Benchmark]: RCFGBuilder took 761.05ms. Allocated memory was 182.5MB in the beginning and 226.5MB in the end (delta: 44.0MB). Free memory was 136.4MB in the beginning and 151.5MB in the end (delta: -15.1MB). Peak memory consumption was 74.7MB. Max. memory is 16.1GB. [2024-09-08 15:25:15,328 INFO L158 Benchmark]: TraceAbstraction took 408295.30ms. Allocated memory was 226.5MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 151.5MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 1.0GB. Max. memory is 16.1GB. [2024-09-08 15:25:15,329 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.37ms. Allocated memory is still 96.5MB. Free memory is still 50.9MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.20ms. Allocated memory is still 182.5MB. Free memory is still 155.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 355.94ms. Allocated memory is still 182.5MB. Free memory was 109.1MB in the beginning and 142.3MB in the end (delta: -33.2MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.40ms. Allocated memory is still 182.5MB. Free memory was 142.3MB in the beginning and 138.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.29ms. Allocated memory is still 182.5MB. Free memory was 138.1MB in the beginning and 136.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 761.05ms. Allocated memory was 182.5MB in the beginning and 226.5MB in the end (delta: 44.0MB). Free memory was 136.4MB in the beginning and 151.5MB in the end (delta: -15.1MB). Peak memory consumption was 74.7MB. Max. memory is 16.1GB. * TraceAbstraction took 408295.30ms. Allocated memory was 226.5MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 151.5MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 1.0GB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2918, independent: 2270, independent conditional: 1813, independent unconditional: 457, dependent: 648, dependent conditional: 637, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2373, independent: 2270, independent conditional: 1813, independent unconditional: 457, dependent: 103, dependent conditional: 92, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 2373, independent: 2270, independent conditional: 1813, independent unconditional: 457, dependent: 103, dependent conditional: 92, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2583, independent: 2270, independent conditional: 1813, independent unconditional: 457, dependent: 313, dependent conditional: 302, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2583, independent: 2270, independent conditional: 0, independent unconditional: 2270, dependent: 313, dependent conditional: 210, dependent unconditional: 103, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2583, independent: 2270, independent conditional: 0, independent unconditional: 2270, dependent: 313, dependent conditional: 210, dependent unconditional: 103, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 421, independent: 373, independent conditional: 0, independent unconditional: 373, dependent: 48, dependent conditional: 37, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 421, independent: 353, independent conditional: 0, independent unconditional: 353, dependent: 68, dependent conditional: 0, dependent unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 68, independent: 20, independent conditional: 0, independent unconditional: 20, dependent: 48, dependent conditional: 37, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 68, independent: 20, independent conditional: 0, independent unconditional: 20, dependent: 48, dependent conditional: 37, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 374, independent: 115, independent conditional: 0, independent unconditional: 115, dependent: 259, dependent conditional: 213, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 2583, independent: 1897, independent conditional: 0, independent unconditional: 1897, dependent: 265, dependent conditional: 173, dependent unconditional: 92, unknown: 421, unknown conditional: 37, unknown unconditional: 384] , Statistics on independence cache: Total cache size (in pairs): 421, Positive cache size: 373, Positive conditional cache size: 0, Positive unconditional cache size: 373, Negative cache size: 48, Negative conditional cache size: 37, Negative unconditional cache size: 11, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 1905, Maximal queried relation: 3, Independence queries for same thread: 545, Persistent sets #1 benchmarks: Persistent set computation time: 0.2s, Number of persistent set computation: 109, Number of trivial persistent sets: 92, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 468, independent: 457, independent conditional: 0, independent unconditional: 457, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2918, independent: 2270, independent conditional: 1813, independent unconditional: 457, dependent: 648, dependent conditional: 637, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2373, independent: 2270, independent conditional: 1813, independent unconditional: 457, dependent: 103, dependent conditional: 92, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 2373, independent: 2270, independent conditional: 1813, independent unconditional: 457, dependent: 103, dependent conditional: 92, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2583, independent: 2270, independent conditional: 1813, independent unconditional: 457, dependent: 313, dependent conditional: 302, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2583, independent: 2270, independent conditional: 0, independent unconditional: 2270, dependent: 313, dependent conditional: 210, dependent unconditional: 103, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2583, independent: 2270, independent conditional: 0, independent unconditional: 2270, dependent: 313, dependent conditional: 210, dependent unconditional: 103, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 421, independent: 373, independent conditional: 0, independent unconditional: 373, dependent: 48, dependent conditional: 37, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 421, independent: 353, independent conditional: 0, independent unconditional: 353, dependent: 68, dependent conditional: 0, dependent unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 68, independent: 20, independent conditional: 0, independent unconditional: 20, dependent: 48, dependent conditional: 37, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 68, independent: 20, independent conditional: 0, independent unconditional: 20, dependent: 48, dependent conditional: 37, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 374, independent: 115, independent conditional: 0, independent unconditional: 115, dependent: 259, dependent conditional: 213, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 2583, independent: 1897, independent conditional: 0, independent unconditional: 1897, dependent: 265, dependent conditional: 173, dependent unconditional: 92, unknown: 421, unknown conditional: 37, unknown unconditional: 384] , Statistics on independence cache: Total cache size (in pairs): 421, Positive cache size: 373, Positive conditional cache size: 0, Positive unconditional cache size: 373, Negative cache size: 48, Negative conditional cache size: 37, Negative unconditional cache size: 11, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 1905, Maximal queried relation: 3, Independence queries for same thread: 545 - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3101, independent: 2378, independent conditional: 1859, independent unconditional: 519, dependent: 723, dependent conditional: 712, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2455, independent: 2378, independent conditional: 1859, independent unconditional: 519, dependent: 77, dependent conditional: 66, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 2455, independent: 2378, independent conditional: 1859, independent unconditional: 519, dependent: 77, dependent conditional: 66, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2605, independent: 2378, independent conditional: 1859, independent unconditional: 519, dependent: 227, dependent conditional: 216, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2605, independent: 2378, independent conditional: 14, independent unconditional: 2364, dependent: 227, dependent conditional: 136, dependent unconditional: 91, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2605, independent: 2378, independent conditional: 14, independent unconditional: 2364, dependent: 227, dependent conditional: 136, dependent unconditional: 91, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 445, independent: 400, independent conditional: 1, independent unconditional: 399, dependent: 45, dependent conditional: 34, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 445, independent: 379, independent conditional: 0, independent unconditional: 379, dependent: 66, dependent conditional: 0, dependent unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 66, independent: 21, independent conditional: 1, independent unconditional: 20, dependent: 45, dependent conditional: 34, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 66, independent: 21, independent conditional: 1, independent unconditional: 20, dependent: 45, dependent conditional: 34, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 353, independent: 112, independent conditional: 5, independent unconditional: 107, dependent: 241, dependent conditional: 201, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 2605, independent: 1978, independent conditional: 13, independent unconditional: 1965, dependent: 182, dependent conditional: 102, dependent unconditional: 80, unknown: 445, unknown conditional: 35, unknown unconditional: 410] , Statistics on independence cache: Total cache size (in pairs): 445, Positive cache size: 400, Positive conditional cache size: 1, Positive unconditional cache size: 399, Negative cache size: 45, Negative conditional cache size: 34, Negative unconditional cache size: 11, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 1925, Maximal queried relation: 3, Independence queries for same thread: 646, Persistent sets #1 benchmarks: Persistent set computation time: 0.2s, Number of persistent set computation: 115, Number of trivial persistent sets: 108, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 530, independent: 519, independent conditional: 0, independent unconditional: 519, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3101, independent: 2378, independent conditional: 1859, independent unconditional: 519, dependent: 723, dependent conditional: 712, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2455, independent: 2378, independent conditional: 1859, independent unconditional: 519, dependent: 77, dependent conditional: 66, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 2455, independent: 2378, independent conditional: 1859, independent unconditional: 519, dependent: 77, dependent conditional: 66, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2605, independent: 2378, independent conditional: 1859, independent unconditional: 519, dependent: 227, dependent conditional: 216, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2605, independent: 2378, independent conditional: 14, independent unconditional: 2364, dependent: 227, dependent conditional: 136, dependent unconditional: 91, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2605, independent: 2378, independent conditional: 14, independent unconditional: 2364, dependent: 227, dependent conditional: 136, dependent unconditional: 91, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 445, independent: 400, independent conditional: 1, independent unconditional: 399, dependent: 45, dependent conditional: 34, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 445, independent: 379, independent conditional: 0, independent unconditional: 379, dependent: 66, dependent conditional: 0, dependent unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 66, independent: 21, independent conditional: 1, independent unconditional: 20, dependent: 45, dependent conditional: 34, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 66, independent: 21, independent conditional: 1, independent unconditional: 20, dependent: 45, dependent conditional: 34, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 353, independent: 112, independent conditional: 5, independent unconditional: 107, dependent: 241, dependent conditional: 201, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 2605, independent: 1978, independent conditional: 13, independent unconditional: 1965, dependent: 182, dependent conditional: 102, dependent unconditional: 80, unknown: 445, unknown conditional: 35, unknown unconditional: 410] , Statistics on independence cache: Total cache size (in pairs): 445, Positive cache size: 400, Positive conditional cache size: 1, Positive unconditional cache size: 399, Negative cache size: 45, Negative conditional cache size: 34, Negative unconditional cache size: 11, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 1925, Maximal queried relation: 3, Independence queries for same thread: 646 - ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-08 15:25:15,348 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (10)] Ended with exit code 0 [2024-09-08 15:25:15,548 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Ended with exit code 0 [2024-09-08 15:25:15,748 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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-more-dec-subseq.wvr.c ./goblint.2024-09-02_08-21-23.files/mutex-meet-local/popl20-more-dec-subseq.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Bitvector.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 15:25:17,554 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-08 15:25:17,615 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf [2024-09-08 15:25:17,619 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-08 15:25:17,620 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-08 15:25:17,642 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-08 15:25:17,646 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-08 15:25:17,646 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-08 15:25:17,646 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-08 15:25:17,646 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-08 15:25:17,647 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-08 15:25:17,647 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-08 15:25:17,647 INFO L153 SettingsManager]: * Use SBE=true [2024-09-08 15:25:17,648 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-08 15:25:17,648 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-08 15:25:17,648 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-08 15:25:17,648 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-08 15:25:17,648 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-08 15:25:17,649 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-08 15:25:17,649 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-08 15:25:17,649 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-08 15:25:17,651 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-08 15:25:17,651 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-08 15:25:17,652 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-08 15:25:17,652 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-08 15:25:17,652 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-08 15:25:17,652 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-08 15:25:17,652 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-08 15:25:17,652 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-08 15:25:17,653 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-08 15:25:17,653 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-08 15:25:17,653 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-08 15:25:17,653 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-08 15:25:17,653 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-08 15:25:17,653 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-08 15:25:17,654 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-08 15:25:17,654 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-09-08 15:25:17,654 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-08 15:25:17,654 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-08 15:25:17,654 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-09-08 15:25:17,654 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-09-08 15:25:17,657 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-09-08 15:25:17,657 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-08 15:25:17,657 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-09-08 15:25:17,889 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-08 15:25:17,903 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-08 15:25:17,905 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-08 15:25:17,906 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-08 15:25:17,906 INFO L274 PluginConnector]: CDTParser initialized [2024-09-08 15:25:17,907 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-more-dec-subseq.wvr.c [2024-09-08 15:25:19,108 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-08 15:25:19,310 INFO L384 CDTParser]: Found 1 translation units. [2024-09-08 15:25:19,311 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-dec-subseq.wvr.c [2024-09-08 15:25:19,319 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/3db40b220/8c46c1ddf8d74c7a879489b17b8cb218/FLAG81daf8940 [2024-09-08 15:25:19,669 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/3db40b220/8c46c1ddf8d74c7a879489b17b8cb218 [2024-09-08 15:25:19,671 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-08 15:25:19,672 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-08 15:25:19,672 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-09-02_08-21-23.files/mutex-meet-local/popl20-more-dec-subseq.wvr.yml/witness.yml [2024-09-08 15:25:19,780 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-08 15:25:19,782 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-08 15:25:19,782 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-08 15:25:19,782 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-08 15:25:19,787 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-08 15:25:19,788 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 03:25:19" (1/2) ... [2024-09-08 15:25:19,789 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d658d2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:25:19, skipping insertion in model container [2024-09-08 15:25:19,789 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 03:25:19" (1/2) ... [2024-09-08 15:25:19,790 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@55f9f105 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:25:19, skipping insertion in model container [2024-09-08 15:25:19,791 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 03:25:19" (2/2) ... [2024-09-08 15:25:19,791 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d658d2f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 03:25:19, skipping insertion in model container [2024-09-08 15:25:19,791 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 03:25:19" (2/2) ... [2024-09-08 15:25:19,822 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-08 15:25:19,824 INFO L1541 ArrayList]: Location invariant before [L71-L71] (((((((((((((((((((((((((((((((0 <= i) && (1 <= N)) && (N <= 1073741823)) && ((-1LL + (long long )N) + (long long )i >= 0LL)) && ((-1LL + (long long )N) + (long long )n >= 0LL)) && ((2147483647LL + (long long )N) + (long long )start >= 0LL)) && ((2147483647LL + (long long )N) + (long long )end >= 0LL)) && ((2147483648LL + (long long )n) + (long long )start >= 0LL)) && ((2147483648LL + (long long )end) + (long long )n >= 0LL)) && ((1073741823LL - (long long )N) + (long long )i >= 0LL)) && ((1073741823LL - (long long )N) + (long long )n >= 0LL)) && ((2147483647LL - (long long )end) + (long long )i >= 0LL)) && ((2147483647LL - (long long )end) + (long long )n >= 0LL)) && ((3221225471LL - (long long )N) + (long long )start >= 0LL)) && ((3221225471LL - (long long )N) + (long long )end >= 0LL)) && ((3221225471LL - (long long )n) + (long long )start >= 0LL)) && ((4294967295LL - (long long )end) + (long long )start >= 0LL)) && ((long long )i + (long long )n >= 0LL)) && ((1073741822LL + (long long )N) - (long long )n >= 0LL)) && ((1073741823LL + (long long )i) - (long long )n >= 0LL)) && ((2147483646LL + (long long )N) - (long long )start >= 0LL)) && ((2147483646LL + (long long )N) - (long long )end >= 0LL)) && ((2147483647LL + (long long )i) - (long long )start >= 0LL)) && ((2147483647LL + (long long )n) - (long long )start >= 0LL)) && ((3221225471LL + (long long )end) - (long long )n >= 0LL)) && ((4294967295LL + (long long )end) - (long long )start >= 0LL)) && ((2147483646LL - (long long )N) - (long long )n >= 0LL)) && ((3221225470LL - (long long )N) - (long long )start >= 0LL)) && ((3221225470LL - (long long )N) - (long long )end >= 0LL)) && ((3221225470LL - (long long )n) - (long long )start >= 0LL)) && ((3221225470LL - (long long )end) - (long long )n >= 0LL)) && ((4294967294LL - (long long )end) - (long long )start >= 0LL) [2024-09-08 15:25:19,824 INFO L1541 ArrayList]: Location invariant before [L78-L78] (((((((((((((((((((((((((((((((0 <= i) && (1 <= N)) && (N <= 1073741823)) && ((-1LL + (long long )N) + (long long )i >= 0LL)) && ((-1LL + (long long )N) + (long long )n >= 0LL)) && ((2147483647LL + (long long )N) + (long long )start >= 0LL)) && ((2147483647LL + (long long )N) + (long long )end >= 0LL)) && ((2147483648LL + (long long )n) + (long long )start >= 0LL)) && ((2147483648LL + (long long )end) + (long long )n >= 0LL)) && ((1073741823LL - (long long )N) + (long long )i >= 0LL)) && ((1073741823LL - (long long )N) + (long long )n >= 0LL)) && ((2147483647LL - (long long )end) + (long long )i >= 0LL)) && ((2147483647LL - (long long )end) + (long long )n >= 0LL)) && ((3221225471LL - (long long )N) + (long long )start >= 0LL)) && ((3221225471LL - (long long )N) + (long long )end >= 0LL)) && ((3221225471LL - (long long )n) + (long long )start >= 0LL)) && ((4294967295LL - (long long )end) + (long long )start >= 0LL)) && ((long long )i + (long long )n >= 0LL)) && ((1073741822LL + (long long )N) - (long long )n >= 0LL)) && ((1073741823LL + (long long )i) - (long long )n >= 0LL)) && ((2147483646LL + (long long )N) - (long long )start >= 0LL)) && ((2147483646LL + (long long )N) - (long long )end >= 0LL)) && ((2147483647LL + (long long )i) - (long long )start >= 0LL)) && ((2147483647LL + (long long )n) - (long long )start >= 0LL)) && ((3221225471LL + (long long )end) - (long long )n >= 0LL)) && ((4294967295LL + (long long )end) - (long long )start >= 0LL)) && ((2147483646LL - (long long )N) - (long long )n >= 0LL)) && ((3221225470LL - (long long )N) - (long long )start >= 0LL)) && ((3221225470LL - (long long )N) - (long long )end >= 0LL)) && ((3221225470LL - (long long )n) - (long long )start >= 0LL)) && ((3221225470LL - (long long )end) - (long long )n >= 0LL)) && ((4294967294LL - (long long )end) - (long long )start >= 0LL) [2024-09-08 15:25:19,824 INFO L1541 ArrayList]: Location invariant before [L58-L58] (((((((((((((((((((((((((((((((0 <= i) && (1 <= N)) && (N <= 1073741823)) && ((-1LL + (long long )N) + (long long )i >= 0LL)) && ((-1LL + (long long )N) + (long long )n >= 0LL)) && ((2147483647LL + (long long )N) + (long long )start >= 0LL)) && ((2147483647LL + (long long )N) + (long long )end >= 0LL)) && ((2147483648LL + (long long )n) + (long long )start >= 0LL)) && ((2147483648LL + (long long )end) + (long long )n >= 0LL)) && ((1073741823LL - (long long )N) + (long long )i >= 0LL)) && ((1073741823LL - (long long )N) + (long long )n >= 0LL)) && ((2147483647LL - (long long )end) + (long long )i >= 0LL)) && ((2147483647LL - (long long )end) + (long long )n >= 0LL)) && ((3221225471LL - (long long )N) + (long long )start >= 0LL)) && ((3221225471LL - (long long )N) + (long long )end >= 0LL)) && ((3221225471LL - (long long )n) + (long long )start >= 0LL)) && ((4294967295LL - (long long )end) + (long long )start >= 0LL)) && ((long long )i + (long long )n >= 0LL)) && ((1073741822LL + (long long )N) - (long long )n >= 0LL)) && ((1073741823LL + (long long )i) - (long long )n >= 0LL)) && ((2147483646LL + (long long )N) - (long long )start >= 0LL)) && ((2147483646LL + (long long )N) - (long long )end >= 0LL)) && ((2147483647LL + (long long )i) - (long long )start >= 0LL)) && ((2147483647LL + (long long )n) - (long long )start >= 0LL)) && ((3221225471LL + (long long )end) - (long long )n >= 0LL)) && ((4294967295LL + (long long )end) - (long long )start >= 0LL)) && ((2147483646LL - (long long )N) - (long long )n >= 0LL)) && ((3221225470LL - (long long )N) - (long long )start >= 0LL)) && ((3221225470LL - (long long )N) - (long long )end >= 0LL)) && ((3221225470LL - (long long )n) - (long long )start >= 0LL)) && ((3221225470LL - (long long )end) - (long long )n >= 0LL)) && ((4294967294LL - (long long )end) - (long long )start >= 0LL) [2024-09-08 15:25:19,824 INFO L1541 ArrayList]: Location invariant before [L67-L67] (((((((((((((((((((((((((((((((0 <= i) && (1 <= N)) && (N <= 1073741823)) && ((-1LL + (long long )N) + (long long )i >= 0LL)) && ((-1LL + (long long )N) + (long long )n >= 0LL)) && ((2147483647LL + (long long )N) + (long long )start >= 0LL)) && ((2147483647LL + (long long )N) + (long long )end >= 0LL)) && ((2147483648LL + (long long )n) + (long long )start >= 0LL)) && ((2147483648LL + (long long )end) + (long long )n >= 0LL)) && ((1073741823LL - (long long )N) + (long long )i >= 0LL)) && ((1073741823LL - (long long )N) + (long long )n >= 0LL)) && ((2147483647LL - (long long )end) + (long long )i >= 0LL)) && ((2147483647LL - (long long )end) + (long long )n >= 0LL)) && ((3221225471LL - (long long )N) + (long long )start >= 0LL)) && ((3221225471LL - (long long )N) + (long long )end >= 0LL)) && ((3221225471LL - (long long )n) + (long long )start >= 0LL)) && ((4294967295LL - (long long )end) + (long long )start >= 0LL)) && ((long long )i + (long long )n >= 0LL)) && ((1073741822LL + (long long )N) - (long long )n >= 0LL)) && ((1073741823LL + (long long )i) - (long long )n >= 0LL)) && ((2147483646LL + (long long )N) - (long long )start >= 0LL)) && ((2147483646LL + (long long )N) - (long long )end >= 0LL)) && ((2147483647LL + (long long )i) - (long long )start >= 0LL)) && ((2147483647LL + (long long )n) - (long long )start >= 0LL)) && ((3221225471LL + (long long )end) - (long long )n >= 0LL)) && ((4294967295LL + (long long )end) - (long long )start >= 0LL)) && ((2147483646LL - (long long )N) - (long long )n >= 0LL)) && ((3221225470LL - (long long )N) - (long long )start >= 0LL)) && ((3221225470LL - (long long )N) - (long long )end >= 0LL)) && ((3221225470LL - (long long )n) - (long long )start >= 0LL)) && ((3221225470LL - (long long )end) - (long long )n >= 0LL)) && ((4294967294LL - (long long )end) - (long long )start >= 0LL) [2024-09-08 15:25:19,824 INFO L1541 ArrayList]: Location invariant before [L51-L51] (((((((((((((((((((((((((((((((0 <= i) && (1 <= N)) && (N <= 1073741823)) && ((-1LL + (long long )N) + (long long )i >= 0LL)) && ((-1LL + (long long )N) + (long long )n >= 0LL)) && ((2147483647LL + (long long )N) + (long long )start >= 0LL)) && ((2147483647LL + (long long )N) + (long long )end >= 0LL)) && ((2147483648LL + (long long )n) + (long long )start >= 0LL)) && ((2147483648LL + (long long )end) + (long long )n >= 0LL)) && ((1073741823LL - (long long )N) + (long long )i >= 0LL)) && ((1073741823LL - (long long )N) + (long long )n >= 0LL)) && ((2147483647LL - (long long )end) + (long long )i >= 0LL)) && ((2147483647LL - (long long )end) + (long long )n >= 0LL)) && ((3221225471LL - (long long )N) + (long long )start >= 0LL)) && ((3221225471LL - (long long )N) + (long long )end >= 0LL)) && ((3221225471LL - (long long )n) + (long long )start >= 0LL)) && ((4294967295LL - (long long )end) + (long long )start >= 0LL)) && ((long long )i + (long long )n >= 0LL)) && ((1073741822LL + (long long )N) - (long long )n >= 0LL)) && ((1073741823LL + (long long )i) - (long long )n >= 0LL)) && ((2147483646LL + (long long )N) - (long long )start >= 0LL)) && ((2147483646LL + (long long )N) - (long long )end >= 0LL)) && ((2147483647LL + (long long )i) - (long long )start >= 0LL)) && ((2147483647LL + (long long )n) - (long long )start >= 0LL)) && ((3221225471LL + (long long )end) - (long long )n >= 0LL)) && ((4294967295LL + (long long )end) - (long long )start >= 0LL)) && ((2147483646LL - (long long )N) - (long long )n >= 0LL)) && ((3221225470LL - (long long )N) - (long long )start >= 0LL)) && ((3221225470LL - (long long )N) - (long long )end >= 0LL)) && ((3221225470LL - (long long )n) - (long long )start >= 0LL)) && ((3221225470LL - (long long )end) - (long long )n >= 0LL)) && ((4294967294LL - (long long )end) - (long long )start >= 0LL) [2024-09-08 15:25:19,839 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-08 15:25:19,985 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-more-dec-subseq.wvr.c[2950,2963] [2024-09-08 15:25:19,997 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-08 15:25:20,008 INFO L200 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-09-08 15:25:20,121 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-more-dec-subseq.wvr.c[2950,2963] [2024-09-08 15:25:20,125 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-08 15:25:20,150 INFO L204 MainTranslator]: Completed translation [2024-09-08 15:25:20,154 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 03:25:20 WrapperNode [2024-09-08 15:25:20,154 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-08 15:25:20,155 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-08 15:25:20,155 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-08 15:25:20,155 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-08 15:25:20,173 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 03:25:20" (1/1) ... [2024-09-08 15:25:20,193 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 03:25:20" (1/1) ... [2024-09-08 15:25:20,232 INFO L138 Inliner]: procedures = 25, calls = 35, calls flagged for inlining = 11, calls inlined = 13, statements flattened = 192 [2024-09-08 15:25:20,233 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-08 15:25:20,234 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-08 15:25:20,234 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-08 15:25:20,234 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-08 15:25:20,240 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 03:25:20" (1/1) ... [2024-09-08 15:25:20,241 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 03:25:20" (1/1) ... [2024-09-08 15:25:20,246 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 03:25:20" (1/1) ... [2024-09-08 15:25:20,250 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 03:25:20" (1/1) ... [2024-09-08 15:25:20,264 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 03:25:20" (1/1) ... [2024-09-08 15:25:20,267 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 03:25:20" (1/1) ... [2024-09-08 15:25:20,273 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 03:25:20" (1/1) ... [2024-09-08 15:25:20,275 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 03:25:20" (1/1) ... [2024-09-08 15:25:20,277 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-08 15:25:20,278 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-08 15:25:20,278 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-08 15:25:20,278 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-08 15:25:20,279 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 03:25:20" (1/1) ... [2024-09-08 15:25:20,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-08 15:25:20,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:25:20,312 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 15:25:20,316 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 15:25:20,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-08 15:25:20,354 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-09-08 15:25:20,354 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-09-08 15:25:20,354 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-09-08 15:25:20,354 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-09-08 15:25:20,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-09-08 15:25:20,355 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-09-08 15:25:20,355 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-09-08 15:25:20,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-09-08 15:25:20,355 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-09-08 15:25:20,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-08 15:25:20,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-08 15:25:20,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-09-08 15:25:20,356 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 15:25:20,453 INFO L242 CfgBuilder]: Building ICFG [2024-09-08 15:25:20,455 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-08 15:25:21,284 INFO L287 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-09-08 15:25:21,284 INFO L291 CfgBuilder]: Performing block encoding [2024-09-08 15:25:21,562 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-08 15:25:21,562 INFO L318 CfgBuilder]: Removed 4 assume(true) statements. [2024-09-08 15:25:21,563 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 03:25:21 BoogieIcfgContainer [2024-09-08 15:25:21,563 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-08 15:25:21,565 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-08 15:25:21,565 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-08 15:25:21,567 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-08 15:25:21,567 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 03:25:19" (1/4) ... [2024-09-08 15:25:21,568 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@413b4a8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 03:25:21, skipping insertion in model container [2024-09-08 15:25:21,568 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 03:25:19" (2/4) ... [2024-09-08 15:25:21,569 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@413b4a8a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 08.09 03:25:21, skipping insertion in model container [2024-09-08 15:25:21,569 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 03:25:20" (3/4) ... [2024-09-08 15:25:21,569 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@413b4a8a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 08.09 03:25:21, skipping insertion in model container [2024-09-08 15:25:21,569 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 03:25:21" (4/4) ... [2024-09-08 15:25:21,570 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-dec-subseq.wvr.c [2024-09-08 15:25:21,582 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-08 15:25:21,582 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-09-08 15:25:21,582 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-09-08 15:25:21,637 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-09-08 15:25:21,671 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 15:25:21,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-08 15:25:21,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:25:21,673 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 15:25:21,675 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 15:25:21,703 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-08 15:25:21,712 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread2Thread1of1ForFork0 ======== [2024-09-08 15:25:21,716 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;@11421749, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 15:25:21,717 INFO L337 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-09-08 15:25:21,830 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 15:25:21,834 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:25:21,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1339622535, now seen corresponding path program 1 times [2024-09-08 15:25:21,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-09-08 15:25:21,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1530110168] [2024-09-08 15:25:21,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:25:21,844 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-09-08 15:25:21,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-09-08 15:25:21,867 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-09-08 15:25:21,869 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-09-08 15:25:21,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:25:21,986 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-08 15:25:21,989 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:25:22,047 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 15:25:22,047 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-08 15:25:22,047 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-09-08 15:25:22,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1530110168] [2024-09-08 15:25:22,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1530110168] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 15:25:22,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 15:25:22,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-08 15:25:22,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929958447] [2024-09-08 15:25:22,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 15:25:22,053 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-08 15:25:22,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-09-08 15:25:22,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-08 15:25:22,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-08 15:25:22,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:25:22,070 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:25:22,071 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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 15:25:22,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:25:22,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:25:22,203 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-09-08 15:25:22,400 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-09-08 15:25:22,400 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 15:25:22,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:25:22,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1383153345, now seen corresponding path program 1 times [2024-09-08 15:25:22,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-09-08 15:25:22,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [451056377] [2024-09-08 15:25:22,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:25:22,405 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-09-08 15:25:22,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-09-08 15:25:22,408 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-09-08 15:25:22,408 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-09-08 15:25:22,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:25:22,491 INFO L262 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-08 15:25:22,492 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:25:22,776 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 15:25:22,776 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:25:28,193 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 15:25:28,193 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-09-08 15:25:28,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [451056377] [2024-09-08 15:25:28,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [451056377] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:25:28,194 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-08 15:25:28,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2024-09-08 15:25:28,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887152942] [2024-09-08 15:25:28,194 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-08 15:25:28,195 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-08 15:25:28,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-09-08 15:25:28,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-08 15:25:28,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-09-08 15:25:28,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:25:28,197 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:25:28,197 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 states have internal predecessors, (20), 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 15:25:28,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:25:28,198 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:25:29,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:25:29,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:25:29,929 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-09-08 15:25:30,125 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-09-08 15:25:30,126 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 15:25:30,126 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:25:30,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1515043295, now seen corresponding path program 1 times [2024-09-08 15:25:30,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-09-08 15:25:30,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [978126938] [2024-09-08 15:25:30,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:25:30,127 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-09-08 15:25:30,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-09-08 15:25:30,128 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-09-08 15:25:30,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-09-08 15:25:30,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:25:30,210 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-09-08 15:25:30,212 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:25:30,544 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 15:25:30,545 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:25:38,401 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 15:25:38,402 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-09-08 15:25:38,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [978126938] [2024-09-08 15:25:38,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [978126938] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:25:38,402 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-08 15:25:38,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 12 [2024-09-08 15:25:38,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7287199] [2024-09-08 15:25:38,403 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-08 15:25:38,403 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-08 15:25:38,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-09-08 15:25:38,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-08 15:25:38,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2024-09-08 15:25:38,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:25:38,405 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:25:38,405 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 13 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 15:25:38,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:25:38,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:25:38,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:25:43,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:25:43,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:25:43,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:25:43,509 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2024-09-08 15:25:43,704 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-09-08 15:25:43,705 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 15:25:43,705 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:25:43,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1602047201, now seen corresponding path program 2 times [2024-09-08 15:25:43,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-09-08 15:25:43,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1627962321] [2024-09-08 15:25:43,705 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-08 15:25:43,706 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-09-08 15:25:43,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-09-08 15:25:43,708 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-09-08 15:25:43,709 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-09-08 15:25:43,800 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-09-08 15:25:43,800 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 15:25:43,802 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-08 15:25:43,804 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:25:43,927 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-09-08 15:25:43,927 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-08 15:25:43,927 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-09-08 15:25:43,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1627962321] [2024-09-08 15:25:43,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1627962321] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 15:25:43,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 15:25:43,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-08 15:25:43,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471739666] [2024-09-08 15:25:43,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 15:25:43,928 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-08 15:25:43,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-09-08 15:25:43,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-08 15:25:43,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-09-08 15:25:43,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:25:43,929 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:25:43,929 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 15:25:43,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:25:43,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:25:43,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:25:43,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:25:49,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:25:49,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:25:49,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:25:49,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 15:25:49,572 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2024-09-08 15:25:49,768 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-09-08 15:25:49,769 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 15:25:49,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:25:49,769 INFO L85 PathProgramCache]: Analyzing trace with hash 161092730, now seen corresponding path program 1 times [2024-09-08 15:25:49,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-09-08 15:25:49,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1808100118] [2024-09-08 15:25:49,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:25:49,770 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-09-08 15:25:49,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-09-08 15:25:49,771 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-09-08 15:25:49,772 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-09-08 15:25:49,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:25:49,886 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-09-08 15:25:49,887 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:25:50,743 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 15:25:50,743 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:26:04,260 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 15:26:04,260 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-09-08 15:26:04,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1808100118] [2024-09-08 15:26:04,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1808100118] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:26:04,261 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-08 15:26:04,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 25 [2024-09-08 15:26:04,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188810950] [2024-09-08 15:26:04,261 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-08 15:26:04,261 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-09-08 15:26:04,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-09-08 15:26:04,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-09-08 15:26:04,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-09-08 15:26:04,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:26:04,263 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:26:04,263 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 1.8461538461538463) internal successors, (48), 26 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 15:26:04,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:26:04,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:26:04,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:26:04,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 15:26:04,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:26:24,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:26:24,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:26:24,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:26:24,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 15:26:24,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-09-08 15:26:24,075 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-09-08 15:26:24,270 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-09-08 15:26:24,271 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 15:26:24,271 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:26:24,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1379696455, now seen corresponding path program 1 times [2024-09-08 15:26:24,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-09-08 15:26:24,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [812560471] [2024-09-08 15:26:24,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:26:24,272 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-09-08 15:26:24,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-09-08 15:26:24,276 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-09-08 15:26:24,279 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-09-08 15:26:24,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:26:24,391 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 51 conjuncts are in the unsatisfiable core [2024-09-08 15:26:24,393 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:26:25,542 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 106 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 15:26:25,542 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:26:42,291 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 106 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 15:26:42,291 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-09-08 15:26:42,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [812560471] [2024-09-08 15:26:42,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [812560471] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:26:42,292 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-08 15:26:42,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 40 [2024-09-08 15:26:42,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287444042] [2024-09-08 15:26:42,292 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-08 15:26:42,292 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-09-08 15:26:42,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-09-08 15:26:42,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-09-08 15:26:42,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=406, Invalid=1316, Unknown=0, NotChecked=0, Total=1722 [2024-09-08 15:26:42,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:26:42,294 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:26:42,294 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 41 states have (on average 1.4634146341463414) internal successors, (60), 41 states have internal predecessors, (60), 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 15:26:42,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:26:42,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:26:42,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:26:42,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 15:26:42,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-09-08 15:26:42,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:27:08,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:27:08,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:27:08,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:27:08,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 15:27:08,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-09-08 15:27:08,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-09-08 15:27:08,528 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-09-08 15:27:08,723 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-09-08 15:27:08,723 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 15:27:08,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:27:08,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1002005575, now seen corresponding path program 2 times [2024-09-08 15:27:08,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-09-08 15:27:08,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1136254283] [2024-09-08 15:27:08,724 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-08 15:27:08,724 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-09-08 15:27:08,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-09-08 15:27:08,725 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-09-08 15:27:08,726 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-09-08 15:27:08,806 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-09-08 15:27:08,806 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 15:27:08,809 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-09-08 15:27:08,811 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:27:09,563 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 466 trivial. 0 not checked. [2024-09-08 15:27:09,563 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-08 15:27:09,563 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-09-08 15:27:09,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1136254283] [2024-09-08 15:27:09,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1136254283] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 15:27:09,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 15:27:09,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-08 15:27:09,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621694971] [2024-09-08 15:27:09,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 15:27:09,564 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-08 15:27:09,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-09-08 15:27:09,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-08 15:27:09,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-09-08 15:27:09,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:27:09,565 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:27:09,565 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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 15:27:09,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:27:09,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:27:09,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:27:09,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 15:27:09,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-09-08 15:27:09,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2024-09-08 15:27:09,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:27:11,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:27:11,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:27:11,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:27:11,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 15:27:11,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-09-08 15:27:11,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-09-08 15:27:11,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:27:11,975 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-09-08 15:27:12,170 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-09-08 15:27:12,171 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 15:27:12,171 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:27:12,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1551410265, now seen corresponding path program 3 times [2024-09-08 15:27:12,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-09-08 15:27:12,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1909892078] [2024-09-08 15:27:12,172 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-08 15:27:12,172 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-09-08 15:27:12,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-09-08 15:27:12,174 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-09-08 15:27:12,175 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-09-08 15:27:12,266 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-09-08 15:27:12,267 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 15:27:12,269 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-09-08 15:27:12,271 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:27:12,855 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 467 trivial. 0 not checked. [2024-09-08 15:27:12,855 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-08 15:27:12,856 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-09-08 15:27:12,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1909892078] [2024-09-08 15:27:12,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1909892078] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 15:27:12,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 15:27:12,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-08 15:27:12,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385915771] [2024-09-08 15:27:12,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 15:27:12,857 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-08 15:27:12,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-09-08 15:27:12,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-08 15:27:12,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-09-08 15:27:12,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:27:12,858 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:27:12,858 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 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 15:27:12,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:27:12,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:27:12,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:27:12,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 15:27:12,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-09-08 15:27:12,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2024-09-08 15:27:12,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:27:12,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:27:42,159 WARN L293 SmtUtils]: Spent 5.18s on a formula simplification. DAG size of input: 151 DAG size of output: 65 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-09-08 15:28:17,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:28:17,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-08 15:28:17,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-08 15:28:17,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 15:28:17,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-09-08 15:28:17,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-09-08 15:28:17,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:28:17,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:28:17,447 INFO L785 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 3 remaining) [2024-09-08 15:28:17,448 INFO L785 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 3 remaining) [2024-09-08 15:28:17,448 INFO L785 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 3 remaining) [2024-09-08 15:28:17,453 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2024-09-08 15:28:17,648 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-09-08 15:28:17,653 INFO L408 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1] [2024-09-08 15:28:17,654 INFO L312 ceAbstractionStarter]: Result for error location thread2Thread1of1ForFork0 was SAFE,SAFE,SAFE (1/3) [2024-09-08 15:28:17,656 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 15:28:17,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-08 15:28:17,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:28:17,658 INFO L229 MonitoredProcess]: Starting monitored process 11 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 15:28:17,658 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (11)] Waiting until timeout for monitored process [2024-09-08 15:28:17,662 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-08 15:28:17,662 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread1Thread1of1ForFork1 ======== [2024-09-08 15:28:17,662 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;@11421749, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 15:28:17,662 INFO L337 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-09-08 15:28:17,731 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 15:28:17,731 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:28:17,731 INFO L85 PathProgramCache]: Analyzing trace with hash 97956497, now seen corresponding path program 1 times [2024-09-08 15:28:17,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-09-08 15:28:17,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1971437417] [2024-09-08 15:28:17,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:28:17,732 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-09-08 15:28:17,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-09-08 15:28:17,734 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-09-08 15:28:17,735 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-09-08 15:28:17,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:28:17,818 INFO L262 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-08 15:28:17,819 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:28:17,842 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 15:28:17,842 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-08 15:28:17,842 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-09-08 15:28:17,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1971437417] [2024-09-08 15:28:17,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1971437417] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 15:28:17,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 15:28:17,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-08 15:28:17,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575495126] [2024-09-08 15:28:17,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 15:28:17,843 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-08 15:28:17,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-09-08 15:28:17,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-08 15:28:17,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-08 15:28:17,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:28:17,843 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:28:17,843 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 15:28:17,844 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:28:18,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:28:18,080 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2024-09-08 15:28:18,276 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-09-08 15:28:18,276 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 15:28:18,276 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:28:18,276 INFO L85 PathProgramCache]: Analyzing trace with hash -625334953, now seen corresponding path program 1 times [2024-09-08 15:28:18,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-09-08 15:28:18,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [20148479] [2024-09-08 15:28:18,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:28:18,277 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-09-08 15:28:18,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-09-08 15:28:18,278 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-09-08 15:28:18,279 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-09-08 15:28:18,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:28:18,364 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-08 15:28:18,365 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:28:18,624 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 15:28:18,624 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:28:27,175 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 15:28:27,175 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-09-08 15:28:27,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [20148479] [2024-09-08 15:28:27,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [20148479] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:28:27,176 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-08 15:28:27,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2024-09-08 15:28:27,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604370201] [2024-09-08 15:28:27,176 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-08 15:28:27,176 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-08 15:28:27,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-09-08 15:28:27,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-08 15:28:27,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-09-08 15:28:27,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:28:27,177 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:28:27,177 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 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 15:28:27,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:28:27,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:28:29,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:28:29,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:28:29,740 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2024-09-08 15:28:29,936 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-09-08 15:28:29,936 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 15:28:29,936 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:28:29,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1475621385, now seen corresponding path program 1 times [2024-09-08 15:28:29,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-09-08 15:28:29,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [324968532] [2024-09-08 15:28:29,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:28:29,937 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-09-08 15:28:29,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-09-08 15:28:29,938 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-09-08 15:28:29,938 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2024-09-08 15:28:30,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:28:30,043 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-09-08 15:28:30,044 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:28:30,380 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 15:28:30,380 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:28:41,949 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 15:28:41,950 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-09-08 15:28:41,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [324968532] [2024-09-08 15:28:41,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [324968532] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:28:41,950 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-08 15:28:41,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 12 [2024-09-08 15:28:41,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67531794] [2024-09-08 15:28:41,950 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-08 15:28:41,950 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-08 15:28:41,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-09-08 15:28:41,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-08 15:28:41,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2024-09-08 15:28:41,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:28:41,951 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:28:41,951 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 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 15:28:41,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:28:41,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:28:41,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:28:48,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:28:48,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:28:48,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:28:48,906 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2024-09-08 15:28:49,102 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-09-08 15:28:49,102 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 15:28:49,103 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:28:49,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1822566199, now seen corresponding path program 2 times [2024-09-08 15:28:49,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-09-08 15:28:49,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1918816167] [2024-09-08 15:28:49,103 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-08 15:28:49,103 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-09-08 15:28:49,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-09-08 15:28:49,104 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-09-08 15:28:49,105 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2024-09-08 15:28:49,181 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-09-08 15:28:49,182 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 15:28:49,184 INFO L262 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-08 15:28:49,185 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:28:49,380 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-09-08 15:28:49,380 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-08 15:28:49,380 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-09-08 15:28:49,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1918816167] [2024-09-08 15:28:49,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1918816167] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 15:28:49,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 15:28:49,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-08 15:28:49,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846647908] [2024-09-08 15:28:49,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 15:28:49,381 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-08 15:28:49,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-09-08 15:28:49,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-08 15:28:49,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-09-08 15:28:49,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:28:49,381 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:28:49,382 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 15:28:49,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:28:49,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:28:49,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:28:49,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:28:54,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:28:54,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:28:54,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:28:54,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 15:28:54,538 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2024-09-08 15:28:54,734 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-09-08 15:28:54,735 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 15:28:54,735 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:28:54,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1635603958, now seen corresponding path program 1 times [2024-09-08 15:28:54,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-09-08 15:28:54,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [903044903] [2024-09-08 15:28:54,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:28:54,736 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-09-08 15:28:54,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-09-08 15:28:54,737 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-09-08 15:28:54,738 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2024-09-08 15:28:54,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:28:54,863 INFO L262 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-08 15:28:54,864 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:28:55,011 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-09-08 15:28:55,011 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:28:55,189 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-08 15:28:55,189 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-09-08 15:28:55,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [903044903] [2024-09-08 15:28:55,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [903044903] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:28:55,190 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-08 15:28:55,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 12 [2024-09-08 15:28:55,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384894011] [2024-09-08 15:28:55,190 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-08 15:28:55,190 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-08 15:28:55,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-09-08 15:28:55,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-08 15:28:55,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2024-09-08 15:28:55,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:28:55,191 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:28:55,191 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 12 states have internal predecessors, (43), 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 15:28:55,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:28:55,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:28:55,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:28:55,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 15:28:55,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:28:55,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:28:55,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:28:55,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:28:55,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 15:28:55,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 15:28:55,880 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2024-09-08 15:28:56,075 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-09-08 15:28:56,075 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 15:28:56,076 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:28:56,076 INFO L85 PathProgramCache]: Analyzing trace with hash 883466876, now seen corresponding path program 2 times [2024-09-08 15:28:56,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-09-08 15:28:56,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [614968004] [2024-09-08 15:28:56,076 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-08 15:28:56,076 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-09-08 15:28:56,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-09-08 15:28:56,077 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-09-08 15:28:56,078 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2024-09-08 15:28:56,208 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-08 15:28:56,208 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 15:28:56,212 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-09-08 15:28:56,214 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:28:57,274 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 15:28:57,274 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:29:17,570 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 15:29:17,570 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-09-08 15:29:17,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [614968004] [2024-09-08 15:29:17,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [614968004] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:29:17,570 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-08 15:29:17,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 26 [2024-09-08 15:29:17,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055031791] [2024-09-08 15:29:17,571 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-08 15:29:17,571 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-09-08 15:29:17,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-09-08 15:29:17,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-09-08 15:29:17,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=577, Unknown=0, NotChecked=0, Total=756 [2024-09-08 15:29:17,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:29:17,572 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:29:17,572 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 2.074074074074074) internal successors, (56), 27 states have internal predecessors, (56), 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 15:29:17,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:29:17,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:29:17,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:29:17,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 15:29:17,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-08 15:29:17,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:29:44,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:29:44,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:29:44,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:29:44,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 15:29:44,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 15:29:44,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-09-08 15:29:44,116 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2024-09-08 15:29:44,310 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-09-08 15:29:44,310 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 15:29:44,311 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:29:44,311 INFO L85 PathProgramCache]: Analyzing trace with hash 250775097, now seen corresponding path program 1 times [2024-09-08 15:29:44,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-09-08 15:29:44,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [487828131] [2024-09-08 15:29:44,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:29:44,311 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-09-08 15:29:44,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-09-08 15:29:44,312 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-09-08 15:29:44,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2024-09-08 15:29:44,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:29:44,432 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 52 conjuncts are in the unsatisfiable core [2024-09-08 15:29:44,433 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:29:45,796 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 111 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 15:29:45,797 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:30:11,334 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 111 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 15:30:11,334 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-09-08 15:30:11,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [487828131] [2024-09-08 15:30:11,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [487828131] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:30:11,334 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-08 15:30:11,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 42 [2024-09-08 15:30:11,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510519331] [2024-09-08 15:30:11,334 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-08 15:30:11,334 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2024-09-08 15:30:11,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-09-08 15:30:11,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2024-09-08 15:30:11,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=435, Invalid=1457, Unknown=0, NotChecked=0, Total=1892 [2024-09-08 15:30:11,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:30:11,336 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:30:11,336 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 43 states have (on average 1.5348837209302326) internal successors, (66), 43 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 15:30:11,336 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:30:11,336 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:30:11,336 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:30:11,336 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 15:30:11,336 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-08 15:30:11,336 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-09-08 15:30:11,336 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:30:47,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:30:47,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:30:47,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:30:47,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 15:30:47,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 15:30:47,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-09-08 15:30:47,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-09-08 15:30:47,487 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2024-09-08 15:30:47,681 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-09-08 15:30:47,681 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 15:30:47,681 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:30:47,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1276084537, now seen corresponding path program 2 times [2024-09-08 15:30:47,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-09-08 15:30:47,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2106001271] [2024-09-08 15:30:47,682 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-08 15:30:47,682 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-09-08 15:30:47,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-09-08 15:30:47,683 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-09-08 15:30:47,684 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2024-09-08 15:30:47,840 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-08 15:30:47,841 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 15:30:47,847 INFO L262 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-09-08 15:30:47,849 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:30:48,625 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2024-09-08 15:30:48,626 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:31:01,950 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2024-09-08 15:31:01,950 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-09-08 15:31:01,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2106001271] [2024-09-08 15:31:01,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2106001271] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:31:01,951 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-08 15:31:01,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 12 [2024-09-08 15:31:01,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623736042] [2024-09-08 15:31:01,951 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-08 15:31:01,951 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-08 15:31:01,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-09-08 15:31:01,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-08 15:31:01,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2024-09-08 15:31:01,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:31:01,952 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:31:01,952 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 13 states have internal predecessors, (38), 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 15:31:01,952 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:31:01,952 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:31:01,952 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:31:01,952 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 15:31:01,952 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-08 15:31:01,952 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-09-08 15:31:01,952 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2024-09-08 15:31:01,952 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:31:41,079 WARN L293 SmtUtils]: Spent 5.21s on a formula simplification. DAG size of input: 151 DAG size of output: 65 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-09-08 15:32:21,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:32:21,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-08 15:32:21,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-08 15:32:21,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 15:32:21,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:32:21,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-09-08 15:32:21,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-09-08 15:32:21,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-08 15:32:21,248 INFO L785 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 2 remaining) [2024-09-08 15:32:21,248 INFO L785 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 2 remaining) [2024-09-08 15:32:21,256 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2024-09-08 15:32:21,448 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-09-08 15:32:21,450 INFO L408 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1] [2024-09-08 15:32:21,450 INFO L312 ceAbstractionStarter]: Result for error location thread1Thread1of1ForFork1 was SAFE,SAFE (2/3) [2024-09-08 15:32:21,451 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 15:32:21,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-08 15:32:21,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:32:21,452 INFO L229 MonitoredProcess]: Starting monitored process 20 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 15:32:21,453 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (20)] Waiting until timeout for monitored process [2024-09-08 15:32:21,456 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-08 15:32:21,457 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-09-08 15:32:21,457 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;@11421749, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 15:32:21,457 INFO L337 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-09-08 15:32:23,644 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-08 15:32:23,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:32:23,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1019111533, now seen corresponding path program 1 times [2024-09-08 15:32:23,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-09-08 15:32:23,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [809419384] [2024-09-08 15:32:23,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:32:23,645 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-09-08 15:32:23,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-09-08 15:32:23,646 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-09-08 15:32:23,647 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2024-09-08 15:32:23,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:32:23,730 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-08 15:32:23,730 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:32:23,780 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 15:32:23,780 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-08 15:32:23,780 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-09-08 15:32:23,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [809419384] [2024-09-08 15:32:23,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [809419384] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 15:32:23,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 15:32:23,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-08 15:32:23,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257445711] [2024-09-08 15:32:23,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 15:32:23,781 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-08 15:32:23,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-09-08 15:32:23,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-08 15:32:23,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-08 15:32:23,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:32:23,781 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:32:23,781 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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 15:32:23,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:32:24,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:32:24,640 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2024-09-08 15:32:24,835 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-09-08 15:32:24,836 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-08 15:32:24,836 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:32:24,836 INFO L85 PathProgramCache]: Analyzing trace with hash -179987822, now seen corresponding path program 1 times [2024-09-08 15:32:24,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-09-08 15:32:24,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1137249823] [2024-09-08 15:32:24,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:32:24,836 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-09-08 15:32:24,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-09-08 15:32:24,839 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-09-08 15:32:24,840 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2024-09-08 15:32:24,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:32:24,958 INFO L262 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-08 15:32:24,959 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:32:24,991 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-08 15:32:24,991 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-08 15:32:24,991 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-09-08 15:32:24,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1137249823] [2024-09-08 15:32:24,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1137249823] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 15:32:24,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 15:32:24,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-08 15:32:24,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855081445] [2024-09-08 15:32:24,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 15:32:24,992 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-08 15:32:24,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-09-08 15:32:24,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-08 15:32:24,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-08 15:32:24,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:32:24,992 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:32:24,992 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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 15:32:24,992 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:32:24,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:32:29,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:32:29,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 15:32:29,110 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2024-09-08 15:32:29,303 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-09-08 15:32:29,304 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-08 15:32:29,304 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:32:29,304 INFO L85 PathProgramCache]: Analyzing trace with hash -564080859, now seen corresponding path program 1 times [2024-09-08 15:32:29,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-09-08 15:32:29,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1538191217] [2024-09-08 15:32:29,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:32:29,305 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-09-08 15:32:29,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-09-08 15:32:29,306 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-09-08 15:32:29,306 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2024-09-08 15:32:29,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:32:29,372 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-09-08 15:32:29,373 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:32:29,395 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 15:32:29,395 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-08 15:32:29,395 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-09-08 15:32:29,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1538191217] [2024-09-08 15:32:29,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1538191217] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 15:32:29,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 15:32:29,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-08 15:32:29,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269900639] [2024-09-08 15:32:29,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 15:32:29,396 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-08 15:32:29,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-09-08 15:32:29,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-08 15:32:29,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-08 15:32:29,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:32:29,396 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:32:29,396 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 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 15:32:29,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:32:29,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 15:32:29,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:32:30,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:32:30,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 15:32:30,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:32:30,111 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Ended with exit code 0 [2024-09-08 15:32:30,306 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-09-08 15:32:30,307 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-08 15:32:30,307 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:32:30,307 INFO L85 PathProgramCache]: Analyzing trace with hash -1698143266, now seen corresponding path program 2 times [2024-09-08 15:32:30,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-09-08 15:32:30,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1110376251] [2024-09-08 15:32:30,307 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-08 15:32:30,307 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-09-08 15:32:30,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-09-08 15:32:30,308 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-09-08 15:32:30,309 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2024-09-08 15:32:30,388 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-09-08 15:32:30,388 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 15:32:30,390 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-08 15:32:30,391 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:32:30,409 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-08 15:32:30,409 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-08 15:32:30,410 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-09-08 15:32:30,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1110376251] [2024-09-08 15:32:30,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1110376251] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 15:32:30,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 15:32:30,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-08 15:32:30,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602854042] [2024-09-08 15:32:30,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 15:32:30,410 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-08 15:32:30,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-09-08 15:32:30,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-08 15:32:30,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-08 15:32:30,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:32:30,411 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:32:30,411 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 15:32:30,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:32:30,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 15:32:30,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:32:30,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:32:30,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:32:30,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 15:32:30,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:32:30,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:32:30,909 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2024-09-08 15:32:31,106 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-09-08 15:32:31,106 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-08 15:32:31,106 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:32:31,106 INFO L85 PathProgramCache]: Analyzing trace with hash 90693028, now seen corresponding path program 1 times [2024-09-08 15:32:31,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-09-08 15:32:31,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1499759498] [2024-09-08 15:32:31,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:32:31,107 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-09-08 15:32:31,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-09-08 15:32:31,108 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-09-08 15:32:31,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2024-09-08 15:32:31,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:32:31,223 INFO L262 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-08 15:32:31,224 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:32:31,278 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-08 15:32:31,278 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-08 15:32:31,278 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-09-08 15:32:31,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1499759498] [2024-09-08 15:32:31,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1499759498] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 15:32:31,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 15:32:31,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-08 15:32:31,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050506854] [2024-09-08 15:32:31,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 15:32:31,279 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-08 15:32:31,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-09-08 15:32:31,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-08 15:32:31,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-08 15:32:31,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:32:31,279 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:32:31,279 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 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 15:32:31,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:32:31,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 15:32:31,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:32:31,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:32:31,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:32:31,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:32:31,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 15:32:31,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:32:31,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:32:31,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:32:31,819 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Ended with exit code 0 [2024-09-08 15:32:32,014 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-09-08 15:32:32,015 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-08 15:32:32,015 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:32:32,015 INFO L85 PathProgramCache]: Analyzing trace with hash -1867011223, now seen corresponding path program 1 times [2024-09-08 15:32:32,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-09-08 15:32:32,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [742744343] [2024-09-08 15:32:32,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:32:32,016 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-09-08 15:32:32,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-09-08 15:32:32,017 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-09-08 15:32:32,017 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2024-09-08 15:32:32,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:32:32,165 INFO L262 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-08 15:32:32,166 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:32:32,441 INFO L349 Elim1Store]: treesize reduction 19, result has 5.0 percent of original size [2024-09-08 15:32:32,441 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 10 [2024-09-08 15:32:32,498 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-08 15:32:32,499 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:32:34,992 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-08 15:32:34,992 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 71 treesize of output 122 Killed by 15