./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-send-receive.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-send-receive.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-send-receive.wvr.c ./goblint.2024-09-02_08-21-23.files/mutex-meet-local/popl20-send-receive.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 15:36:15,512 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-08 15:36:15,583 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-09-08 15:36:15,589 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-08 15:36:15,589 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-08 15:36:15,616 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-08 15:36:15,618 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-08 15:36:15,619 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-08 15:36:15,620 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-08 15:36:15,621 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-08 15:36:15,622 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-08 15:36:15,622 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-08 15:36:15,623 INFO L153 SettingsManager]: * Use SBE=true [2024-09-08 15:36:15,624 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-08 15:36:15,625 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-08 15:36:15,625 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-08 15:36:15,625 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-08 15:36:15,625 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-08 15:36:15,626 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-08 15:36:15,626 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-08 15:36:15,626 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-08 15:36:15,627 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-08 15:36:15,627 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-08 15:36:15,627 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-08 15:36:15,627 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-08 15:36:15,628 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-08 15:36:15,628 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-08 15:36:15,628 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-08 15:36:15,628 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-08 15:36:15,629 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-08 15:36:15,629 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-08 15:36:15,629 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-08 15:36:15,630 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-08 15:36:15,630 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-08 15:36:15,630 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-08 15:36:15,630 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-09-08 15:36:15,631 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-08 15:36:15,631 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-08 15:36:15,631 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-09-08 15:36:15,631 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-09-08 15:36:15,632 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-09-08 15:36:15,633 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-09-08 15:36:15,938 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-08 15:36:15,963 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-08 15:36:15,966 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-08 15:36:15,968 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-08 15:36:15,968 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-08 15:36:15,970 INFO L431 ainManager$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-send-receive.wvr.yml/witness.yml [2024-09-08 15:36:16,091 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-08 15:36:16,091 INFO L274 PluginConnector]: CDTParser initialized [2024-09-08 15:36:16,092 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-send-receive.wvr.c [2024-09-08 15:36:17,534 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-08 15:36:17,750 INFO L384 CDTParser]: Found 1 translation units. [2024-09-08 15:36:17,750 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-send-receive.wvr.c [2024-09-08 15:36:17,757 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/0ee67480c/4219cf4e33e3401dba9c2aac961f0984/FLAG87704b51b [2024-09-08 15:36:17,770 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/0ee67480c/4219cf4e33e3401dba9c2aac961f0984 [2024-09-08 15:36:17,771 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-08 15:36:17,772 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-08 15:36:17,775 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-08 15:36:17,775 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-08 15:36:17,781 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-08 15:36:17,782 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 03:36:16" (1/2) ... [2024-09-08 15:36:17,783 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cce7188 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 03:36:17, skipping insertion in model container [2024-09-08 15:36:17,784 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 03:36:16" (1/2) ... [2024-09-08 15:36:17,785 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7c1f9249 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 03:36:17, skipping insertion in model container [2024-09-08 15:36:17,785 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 03:36:17" (2/2) ... [2024-09-08 15:36:17,786 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cce7188 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:36:17, skipping insertion in model container [2024-09-08 15:36:17,786 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 03:36:17" (2/2) ... [2024-09-08 15:36:17,816 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-08 15:36:17,817 INFO L1541 ArrayList]: Location invariant before [L68-L68] (((((((((((((2147483648LL + (long long )front) + (long long )n >= 0LL) && ((2147483648LL + (long long )back) + (long long )n >= 0LL)) && ((1073741823LL - (long long )n) + (long long )v_assert >= 0LL)) && ((2147483647LL - (long long )front) + (long long )n >= 0LL)) && ((2147483647LL - (long long )front) + (long long )v_assert >= 0LL)) && ((long long )n + (long long )v_assert >= 0LL)) && ((1LL + (long long )n) - (long long )v_assert >= 0LL)) && ((3221225471LL + (long long )front) - (long long )n >= 0LL)) && ((3221225471LL + (long long )back) - (long long )n >= 0LL)) && ((4294967295LL + (long long )back) - (long long )front >= 0LL)) && ((1073741824LL - (long long )n) - (long long )v_assert >= 0LL)) && ((2147483648LL - (long long )front) - (long long )v_assert >= 0LL)) && ((3221225470LL - (long long )front) - (long long )n >= 0LL) [2024-09-08 15:36:17,817 INFO L1541 ArrayList]: Location invariant before [L85-L85] (((((((((((((2147483648LL + (long long )front) + (long long )n >= 0LL) && ((2147483648LL + (long long )back) + (long long )n >= 0LL)) && ((1073741823LL - (long long )n) + (long long )v_assert >= 0LL)) && ((2147483647LL - (long long )front) + (long long )n >= 0LL)) && ((2147483647LL - (long long )front) + (long long )v_assert >= 0LL)) && ((long long )n + (long long )v_assert >= 0LL)) && ((1LL + (long long )n) - (long long )v_assert >= 0LL)) && ((3221225471LL + (long long )front) - (long long )n >= 0LL)) && ((3221225471LL + (long long )back) - (long long )n >= 0LL)) && ((4294967295LL + (long long )back) - (long long )front >= 0LL)) && ((1073741824LL - (long long )n) - (long long )v_assert >= 0LL)) && ((2147483648LL - (long long )front) - (long long )v_assert >= 0LL)) && ((3221225470LL - (long long )front) - (long long )n >= 0LL) [2024-09-08 15:36:17,817 INFO L1541 ArrayList]: Location invariant before [L53-L53] (((((((((((((2147483648LL + (long long )front) + (long long )n >= 0LL) && ((2147483648LL + (long long )back) + (long long )n >= 0LL)) && ((1073741823LL - (long long )n) + (long long )v_assert >= 0LL)) && ((2147483647LL - (long long )front) + (long long )n >= 0LL)) && ((2147483647LL - (long long )front) + (long long )v_assert >= 0LL)) && ((long long )n + (long long )v_assert >= 0LL)) && ((1LL + (long long )n) - (long long )v_assert >= 0LL)) && ((3221225471LL + (long long )front) - (long long )n >= 0LL)) && ((3221225471LL + (long long )back) - (long long )n >= 0LL)) && ((4294967295LL + (long long )back) - (long long )front >= 0LL)) && ((1073741824LL - (long long )n) - (long long )v_assert >= 0LL)) && ((2147483648LL - (long long )front) - (long long )v_assert >= 0LL)) && ((3221225470LL - (long long )front) - (long long )n >= 0LL) [2024-09-08 15:36:17,818 INFO L1541 ArrayList]: Location invariant before [L49-L49] (((((((((((((2147483648LL + (long long )front) + (long long )n >= 0LL) && ((2147483648LL + (long long )back) + (long long )n >= 0LL)) && ((1073741823LL - (long long )n) + (long long )v_assert >= 0LL)) && ((2147483647LL - (long long )front) + (long long )n >= 0LL)) && ((2147483647LL - (long long )front) + (long long )v_assert >= 0LL)) && ((long long )n + (long long )v_assert >= 0LL)) && ((1LL + (long long )n) - (long long )v_assert >= 0LL)) && ((3221225471LL + (long long )front) - (long long )n >= 0LL)) && ((3221225471LL + (long long )back) - (long long )n >= 0LL)) && ((4294967295LL + (long long )back) - (long long )front >= 0LL)) && ((1073741824LL - (long long )n) - (long long )v_assert >= 0LL)) && ((2147483648LL - (long long )front) - (long long )v_assert >= 0LL)) && ((3221225470LL - (long long )front) - (long long )n >= 0LL) [2024-09-08 15:36:17,818 INFO L1541 ArrayList]: Location invariant before [L94-L94] (((((((((((((2147483648LL + (long long )front) + (long long )n >= 0LL) && ((2147483648LL + (long long )back) + (long long )n >= 0LL)) && ((1073741823LL - (long long )n) + (long long )v_assert >= 0LL)) && ((2147483647LL - (long long )front) + (long long )n >= 0LL)) && ((2147483647LL - (long long )front) + (long long )v_assert >= 0LL)) && ((long long )n + (long long )v_assert >= 0LL)) && ((1LL + (long long )n) - (long long )v_assert >= 0LL)) && ((3221225471LL + (long long )front) - (long long )n >= 0LL)) && ((3221225471LL + (long long )back) - (long long )n >= 0LL)) && ((4294967295LL + (long long )back) - (long long )front >= 0LL)) && ((1073741824LL - (long long )n) - (long long )v_assert >= 0LL)) && ((2147483648LL - (long long )front) - (long long )v_assert >= 0LL)) && ((3221225470LL - (long long )front) - (long long )n >= 0LL) [2024-09-08 15:36:17,818 INFO L1541 ArrayList]: Location invariant before [L58-L58] (((((((((((((2147483648LL + (long long )front) + (long long )n >= 0LL) && ((2147483648LL + (long long )back) + (long long )n >= 0LL)) && ((1073741823LL - (long long )n) + (long long )v_assert >= 0LL)) && ((2147483647LL - (long long )front) + (long long )n >= 0LL)) && ((2147483647LL - (long long )front) + (long long )v_assert >= 0LL)) && ((long long )n + (long long )v_assert >= 0LL)) && ((1LL + (long long )n) - (long long )v_assert >= 0LL)) && ((3221225471LL + (long long )front) - (long long )n >= 0LL)) && ((3221225471LL + (long long )back) - (long long )n >= 0LL)) && ((4294967295LL + (long long )back) - (long long )front >= 0LL)) && ((1073741824LL - (long long )n) - (long long )v_assert >= 0LL)) && ((2147483648LL - (long long )front) - (long long )v_assert >= 0LL)) && ((3221225470LL - (long long )front) - (long long )n >= 0LL) [2024-09-08 15:36:17,818 INFO L1541 ArrayList]: Location invariant before [L79-L79] (((((((((((((2147483648LL + (long long )front) + (long long )n >= 0LL) && ((2147483648LL + (long long )back) + (long long )n >= 0LL)) && ((1073741823LL - (long long )n) + (long long )v_assert >= 0LL)) && ((2147483647LL - (long long )front) + (long long )n >= 0LL)) && ((2147483647LL - (long long )front) + (long long )v_assert >= 0LL)) && ((long long )n + (long long )v_assert >= 0LL)) && ((1LL + (long long )n) - (long long )v_assert >= 0LL)) && ((3221225471LL + (long long )front) - (long long )n >= 0LL)) && ((3221225471LL + (long long )back) - (long long )n >= 0LL)) && ((4294967295LL + (long long )back) - (long long )front >= 0LL)) && ((1073741824LL - (long long )n) - (long long )v_assert >= 0LL)) && ((2147483648LL - (long long )front) - (long long )v_assert >= 0LL)) && ((3221225470LL - (long long )front) - (long long )n >= 0LL) [2024-09-08 15:36:17,819 INFO L1541 ArrayList]: Location invariant before [L74-L74] (((((((((((((2147483648LL + (long long )front) + (long long )n >= 0LL) && ((2147483648LL + (long long )back) + (long long )n >= 0LL)) && ((1073741823LL - (long long )n) + (long long )v_assert >= 0LL)) && ((2147483647LL - (long long )front) + (long long )n >= 0LL)) && ((2147483647LL - (long long )front) + (long long )v_assert >= 0LL)) && ((long long )n + (long long )v_assert >= 0LL)) && ((1LL + (long long )n) - (long long )v_assert >= 0LL)) && ((3221225471LL + (long long )front) - (long long )n >= 0LL)) && ((3221225471LL + (long long )back) - (long long )n >= 0LL)) && ((4294967295LL + (long long )back) - (long long )front >= 0LL)) && ((1073741824LL - (long long )n) - (long long )v_assert >= 0LL)) && ((2147483648LL - (long long )front) - (long long )v_assert >= 0LL)) && ((3221225470LL - (long long )front) - (long long )n >= 0LL) [2024-09-08 15:36:17,844 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-08 15:36:18,059 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-send-receive.wvr.c[3146,3159] [2024-09-08 15:36:18,073 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-08 15:36:18,101 INFO L200 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-09-08 15:36:18,300 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-send-receive.wvr.c[3146,3159] [2024-09-08 15:36:18,305 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-08 15:36:18,326 INFO L204 MainTranslator]: Completed translation [2024-09-08 15:36:18,327 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:36:18 WrapperNode [2024-09-08 15:36:18,327 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-08 15:36:18,328 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-08 15:36:18,328 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-08 15:36:18,328 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-08 15:36:18,334 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:36:18" (1/1) ... [2024-09-08 15:36:18,343 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:36:18" (1/1) ... [2024-09-08 15:36:18,399 INFO L138 Inliner]: procedures = 24, calls = 37, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 162 [2024-09-08 15:36:18,399 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-08 15:36:18,400 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-08 15:36:18,400 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-08 15:36:18,400 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-08 15:36:18,407 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:36:18" (1/1) ... [2024-09-08 15:36:18,408 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:36:18" (1/1) ... [2024-09-08 15:36:18,414 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:36:18" (1/1) ... [2024-09-08 15:36:18,414 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:36:18" (1/1) ... [2024-09-08 15:36:18,428 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:36:18" (1/1) ... [2024-09-08 15:36:18,437 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:36:18" (1/1) ... [2024-09-08 15:36:18,440 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:36:18" (1/1) ... [2024-09-08 15:36:18,442 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:36:18" (1/1) ... [2024-09-08 15:36:18,445 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-08 15:36:18,446 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-08 15:36:18,446 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-08 15:36:18,446 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-08 15:36:18,447 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:36:18" (1/1) ... [2024-09-08 15:36:18,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-08 15:36:18,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:36:18,485 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 15:36:18,490 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 15:36:18,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-08 15:36:18,538 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-09-08 15:36:18,538 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-09-08 15:36:18,538 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-09-08 15:36:18,538 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-09-08 15:36:18,539 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-09-08 15:36:18,539 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-09-08 15:36:18,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-08 15:36:18,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-08 15:36:18,540 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-09-08 15:36:18,540 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-09-08 15:36:18,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-09-08 15:36:18,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-08 15:36:18,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-08 15:36:18,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-08 15:36:18,543 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 15:36:18,645 INFO L242 CfgBuilder]: Building ICFG [2024-09-08 15:36:18,646 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-08 15:36:19,066 INFO L287 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-09-08 15:36:19,067 INFO L291 CfgBuilder]: Performing block encoding [2024-09-08 15:36:19,373 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-08 15:36:19,374 INFO L318 CfgBuilder]: Removed 3 assume(true) statements. [2024-09-08 15:36:19,374 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 03:36:19 BoogieIcfgContainer [2024-09-08 15:36:19,374 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-08 15:36:19,377 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-08 15:36:19,377 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-08 15:36:19,380 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-08 15:36:19,380 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 03:36:16" (1/4) ... [2024-09-08 15:36:19,381 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16ab1824 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 08.09 03:36:19, skipping insertion in model container [2024-09-08 15:36:19,381 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 03:36:17" (2/4) ... [2024-09-08 15:36:19,382 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16ab1824 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 03:36:19, skipping insertion in model container [2024-09-08 15:36:19,382 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:36:18" (3/4) ... [2024-09-08 15:36:19,382 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16ab1824 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 03:36:19, skipping insertion in model container [2024-09-08 15:36:19,383 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 03:36:19" (4/4) ... [2024-09-08 15:36:19,384 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-send-receive.wvr.c [2024-09-08 15:36:19,399 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-08 15:36:19,399 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2024-09-08 15:36:19,399 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-09-08 15:36:19,465 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-09-08 15:36:19,509 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 15:36:19,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-08 15:36:19,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:36:19,512 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 15:36:19,513 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 15:36:19,548 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-08 15:36:19,561 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread2Thread1of1ForFork2 ======== [2024-09-08 15:36:19,569 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;@4a5db4bc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 15:36:19,569 INFO L337 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-09-08 15:36:19,727 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-09-08 15:36:19,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:36:19,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1426326915, now seen corresponding path program 1 times [2024-09-08 15:36:19,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:36:19,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422488727] [2024-09-08 15:36:19,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:36:19,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:36:19,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:36:20,474 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 15:36:20,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:36:20,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422488727] [2024-09-08 15:36:20,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422488727] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 15:36:20,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 15:36:20,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-08 15:36:20,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413911234] [2024-09-08 15:36:20,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 15:36:20,482 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-08 15:36:20,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:36:20,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-08 15:36:20,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-08 15:36:20,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:36:20,513 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:36:20,514 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) 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 15:36:20,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:36:20,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:36:20,562 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-08 15:36:20,562 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-09-08 15:36:20,563 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:36:20,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1170385172, now seen corresponding path program 1 times [2024-09-08 15:36:20,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:36:20,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570825216] [2024-09-08 15:36:20,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:36:20,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:36:20,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:36:20,970 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 15:36:20,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:36:20,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570825216] [2024-09-08 15:36:20,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570825216] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 15:36:20,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1576375119] [2024-09-08 15:36:20,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:36:20,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:36:20,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:36:20,996 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 15:36:20,998 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 15:36:21,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:36:21,093 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-08 15:36:21,098 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:36:21,278 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 15:36:21,278 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:36:21,667 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 15:36:21,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1576375119] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:36:21,667 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 15:36:21,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-09-08 15:36:21,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706885672] [2024-09-08 15:36:21,669 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 15:36:21,670 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-08 15:36:21,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:36:21,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-08 15:36:21,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-09-08 15:36:21,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:36:21,673 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:36:21,673 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 9 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 15:36:21,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:36:21,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:36:22,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:36:22,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:36:22,957 INFO L785 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 4 remaining) [2024-09-08 15:36:22,958 INFO L785 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 4 remaining) [2024-09-08 15:36:22,958 INFO L785 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 4 remaining) [2024-09-08 15:36:22,958 INFO L785 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 4 remaining) [2024-09-08 15:36:22,975 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 15:36:23,162 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 15:36:23,169 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1] [2024-09-08 15:36:23,170 INFO L312 ceAbstractionStarter]: Result for error location thread2Thread1of1ForFork2 was SAFE,SAFE,SAFE,SAFE (1/4) [2024-09-08 15:36:23,173 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 15:36:23,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-08 15:36:23,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:36:23,175 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-09-08 15:36:23,177 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process [2024-09-08 15:36:23,179 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-08 15:36:23,180 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread1Thread1of1ForFork1 ======== [2024-09-08 15:36:23,181 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;@4a5db4bc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 15:36:23,181 INFO L337 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-09-08 15:36:23,247 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 15:36:23,247 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:36:23,248 INFO L85 PathProgramCache]: Analyzing trace with hash 468476402, now seen corresponding path program 1 times [2024-09-08 15:36:23,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:36:23,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543396651] [2024-09-08 15:36:23,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:36:23,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:36:23,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:36:23,409 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 15:36:23,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:36:23,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543396651] [2024-09-08 15:36:23,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543396651] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 15:36:23,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 15:36:23,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-08 15:36:23,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266271613] [2024-09-08 15:36:23,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 15:36:23,411 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-08 15:36:23,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:36:23,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-08 15:36:23,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-08 15:36:23,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:36:23,413 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:36:23,413 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 15:36:23,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:36:23,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:36:23,448 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-08 15:36:23,449 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 15:36:23,449 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:36:23,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1634946529, now seen corresponding path program 1 times [2024-09-08 15:36:23,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:36:23,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458684108] [2024-09-08 15:36:23,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:36:23,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:36:23,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:36:23,662 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 15:36:23,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:36:23,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458684108] [2024-09-08 15:36:23,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458684108] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 15:36:23,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1501926445] [2024-09-08 15:36:23,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:36:23,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:36:23,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:36:23,666 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 15:36:23,667 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 15:36:23,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:36:23,730 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-08 15:36:23,731 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:36:23,832 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 15:36:23,832 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:36:24,144 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 15:36:24,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1501926445] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:36:24,145 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 15:36:24,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 8 [2024-09-08 15:36:24,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466132221] [2024-09-08 15:36:24,145 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 15:36:24,146 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-08 15:36:24,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:36:24,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-08 15:36:24,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-09-08 15:36:24,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:36:24,149 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:36:24,149 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 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 15:36:24,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:36:24,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:36:25,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:36:25,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:36:25,075 INFO L785 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 3 remaining) [2024-09-08 15:36:25,075 INFO L785 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 3 remaining) [2024-09-08 15:36:25,075 INFO L785 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 3 remaining) [2024-09-08 15:36:25,088 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-09-08 15:36:25,279 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 15:36:25,281 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1] [2024-09-08 15:36:25,281 INFO L312 ceAbstractionStarter]: Result for error location thread1Thread1of1ForFork1 was SAFE,SAFE,SAFE (2/4) [2024-09-08 15:36:25,285 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 15:36:25,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-08 15:36:25,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:36:25,287 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 15:36:25,290 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 15:36:25,293 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-08 15:36:25,294 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-09-08 15:36:25,295 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;@4a5db4bc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 15:36:25,295 INFO L337 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-09-08 15:36:25,699 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-08 15:36:25,699 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:36:25,700 INFO L85 PathProgramCache]: Analyzing trace with hash -854454861, now seen corresponding path program 1 times [2024-09-08 15:36:25,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:36:25,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453996683] [2024-09-08 15:36:25,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:36:25,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:36:25,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:36:25,787 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 15:36:25,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:36:25,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453996683] [2024-09-08 15:36:25,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453996683] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 15:36:25,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 15:36:25,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-08 15:36:25,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332168711] [2024-09-08 15:36:25,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 15:36:25,788 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-08 15:36:25,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:36:25,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-08 15:36:25,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-08 15:36:25,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:36:25,789 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:36:25,789 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 15:36:25,789 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:36:25,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:36:25,901 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-09-08 15:36:25,901 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-08 15:36:25,902 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:36:25,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1972508163, now seen corresponding path program 1 times [2024-09-08 15:36:25,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:36:25,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026849079] [2024-09-08 15:36:25,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:36:25,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:36:25,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:36:26,060 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-08 15:36:26,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:36:26,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026849079] [2024-09-08 15:36:26,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026849079] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 15:36:26,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 15:36:26,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-08 15:36:26,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911924171] [2024-09-08 15:36:26,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 15:36:26,061 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-08 15:36:26,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:36:26,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-08 15:36:26,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-08 15:36:26,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:36:26,062 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:36:26,062 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 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 15:36:26,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:36:26,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:36:26,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:36:26,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:36:26,159 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-09-08 15:36:26,159 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-08 15:36:26,163 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:36:26,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1590285132, now seen corresponding path program 1 times [2024-09-08 15:36:26,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:36:26,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546568497] [2024-09-08 15:36:26,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:36:26,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:36:26,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:36:26,350 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 15:36:26,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:36:26,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546568497] [2024-09-08 15:36:26,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546568497] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 15:36:26,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1719646437] [2024-09-08 15:36:26,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:36:26,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:36:26,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:36:26,353 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 15:36:26,355 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 15:36:26,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:36:26,448 INFO L262 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-08 15:36:26,450 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:36:26,497 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-08 15:36:26,497 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-08 15:36:26,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1719646437] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 15:36:26,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-08 15:36:26,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-09-08 15:36:26,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681946606] [2024-09-08 15:36:26,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 15:36:26,499 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-08 15:36:26,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:36:26,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-08 15:36:26,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-09-08 15:36:26,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:36:26,500 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:36:26,500 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 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 15:36:26,500 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:36:26,500 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:36:26,500 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:36:26,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:36:26,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:36:26,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:36:26,715 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-09-08 15:36:26,892 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:36:26,893 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-08 15:36:26,893 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:36:26,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1684825107, now seen corresponding path program 2 times [2024-09-08 15:36:26,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:36:26,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099107506] [2024-09-08 15:36:26,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:36:26,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:36:26,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:36:27,140 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-09-08 15:36:27,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:36:27,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099107506] [2024-09-08 15:36:27,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099107506] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 15:36:27,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1516455684] [2024-09-08 15:36:27,142 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-08 15:36:27,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:36:27,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:36:27,144 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 15:36:27,145 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 15:36:27,243 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-08 15:36:27,244 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 15:36:27,245 INFO L262 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-08 15:36:27,247 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:36:27,384 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-09-08 15:36:27,384 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:36:27,612 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-09-08 15:36:27,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1516455684] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:36:27,613 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 15:36:27,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2024-09-08 15:36:27,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697292174] [2024-09-08 15:36:27,614 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 15:36:27,614 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-08 15:36:27,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:36:27,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-08 15:36:27,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2024-09-08 15:36:27,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:36:27,615 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:36:27,616 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.294117647058823) internal successors, (90), 16 states have internal predecessors, (90), 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 15:36:27,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:36:27,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:36:27,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:36:27,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:36:27,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:36:27,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:36:27,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:36:27,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:36:27,901 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-09-08 15:36:28,083 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,SelfDestructingSolverStorable7 [2024-09-08 15:36:28,084 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-08 15:36:28,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:36:28,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1209168286, now seen corresponding path program 3 times [2024-09-08 15:36:28,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:36:28,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302491355] [2024-09-08 15:36:28,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:36:28,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:36:28,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:36:28,364 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 16 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 15:36:28,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:36:28,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302491355] [2024-09-08 15:36:28,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302491355] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 15:36:28,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1516688795] [2024-09-08 15:36:28,365 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-08 15:36:28,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:36:28,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:36:28,367 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 15:36:28,369 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 15:36:28,468 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-08 15:36:28,468 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 15:36:28,470 INFO L262 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-08 15:36:28,472 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:36:28,534 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-09-08 15:36:28,535 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:36:28,717 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-09-08 15:36:28,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1516688795] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:36:28,718 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 15:36:28,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 14 [2024-09-08 15:36:28,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508842861] [2024-09-08 15:36:28,718 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 15:36:28,719 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-08 15:36:28,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:36:28,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-08 15:36:28,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-09-08 15:36:28,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:36:28,721 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:36:28,722 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.466666666666667) internal successors, (97), 14 states have internal predecessors, (97), 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 15:36:28,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:36:28,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:36:28,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:36:28,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:36:28,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:36:29,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:36:29,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:36:29,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:36:29,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:36:29,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:36:29,174 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-09-08 15:36:29,357 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:36:29,357 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-08 15:36:29,358 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:36:29,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1096393069, now seen corresponding path program 4 times [2024-09-08 15:36:29,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:36:29,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194319983] [2024-09-08 15:36:29,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:36:29,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:36:29,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:36:29,717 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 23 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-09-08 15:36:29,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:36:29,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194319983] [2024-09-08 15:36:29,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194319983] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 15:36:29,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1934209139] [2024-09-08 15:36:29,718 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-08 15:36:29,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:36:29,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:36:29,720 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 15:36:29,722 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-09-08 15:36:29,833 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-08 15:36:29,834 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 15:36:29,836 INFO L262 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-08 15:36:29,837 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:36:29,938 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 15 proven. 10 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-09-08 15:36:29,938 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:36:30,009 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-09-08 15:36:30,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1934209139] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:36:30,009 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 15:36:30,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 5] total 10 [2024-09-08 15:36:30,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881597278] [2024-09-08 15:36:30,010 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 15:36:30,010 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-08 15:36:30,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:36:30,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-08 15:36:30,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-09-08 15:36:30,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:36:30,011 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:36:30,014 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 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 15:36:30,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:36:30,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:36:30,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:36:30,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:36:30,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:36:30,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:36:30,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:36:30,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:36:30,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:36:30,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:36:30,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:36:30,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-08 15:36:30,656 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-09-08 15:36:30,838 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-09-08 15:36:30,839 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-08 15:36:30,839 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:36:30,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1726029869, now seen corresponding path program 5 times [2024-09-08 15:36:30,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:36:30,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534725436] [2024-09-08 15:36:30,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:36:30,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:36:30,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:36:32,022 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 15:36:32,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:36:32,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534725436] [2024-09-08 15:36:32,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534725436] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 15:36:32,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1328246492] [2024-09-08 15:36:32,023 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-08 15:36:32,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:36:32,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:36:32,026 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 15:36:32,027 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 15:36:32,133 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2024-09-08 15:36:32,133 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 15:36:32,136 INFO L262 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-09-08 15:36:32,138 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:36:32,367 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-08 15:36:32,368 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:36:32,497 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-08 15:36:32,497 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 40 treesize of output 24 [2024-09-08 15:36:32,686 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-08 15:36:32,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1328246492] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:36:32,686 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 15:36:32,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 7] total 25 [2024-09-08 15:36:32,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582411863] [2024-09-08 15:36:32,687 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 15:36:32,687 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-09-08 15:36:32,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:36:32,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-09-08 15:36:32,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=553, Unknown=0, NotChecked=0, Total=650 [2024-09-08 15:36:32,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:36:32,689 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:36:32,689 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.230769230769231) internal successors, (84), 25 states have internal predecessors, (84), 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 15:36:32,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:36:32,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:36:32,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:36:32,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:36:32,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:36:32,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2024-09-08 15:36:32,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:36:33,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:36:33,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:36:33,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:36:33,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:36:33,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:36:33,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-08 15:36:33,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-09-08 15:36:33,965 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 15:36:34,149 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,SelfDestructingSolverStorable10 [2024-09-08 15:36:34,149 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-08 15:36:34,149 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:36:34,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1838195598, now seen corresponding path program 6 times [2024-09-08 15:36:34,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:36:34,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669290399] [2024-09-08 15:36:34,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:36:34,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:36:34,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:36:34,342 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-09-08 15:36:34,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:36:34,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669290399] [2024-09-08 15:36:34,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669290399] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 15:36:34,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 15:36:34,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-08 15:36:34,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183584773] [2024-09-08 15:36:34,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 15:36:34,344 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-08 15:36:34,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:36:34,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-08 15:36:34,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-08 15:36:34,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:36:34,345 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:36:34,345 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 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 15:36:34,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:36:34,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:36:34,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:36:34,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:36:34,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:36:34,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2024-09-08 15:36:34,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2024-09-08 15:36:34,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:36:34,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:36:34,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:36:34,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:36:34,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:36:34,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:36:34,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-08 15:36:34,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-09-08 15:36:34,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:36:34,551 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-09-08 15:36:34,551 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-08 15:36:34,551 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:36:34,551 INFO L85 PathProgramCache]: Analyzing trace with hash 745830959, now seen corresponding path program 1 times [2024-09-08 15:36:34,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:36:34,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242407191] [2024-09-08 15:36:34,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:36:34,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:36:34,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:36:37,167 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 15:36:37,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:36:37,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242407191] [2024-09-08 15:36:37,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242407191] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 15:36:37,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [636168146] [2024-09-08 15:36:37,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:36:37,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:36:37,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:36:37,170 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 15:36:37,171 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 15:36:37,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:36:37,276 INFO L262 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-09-08 15:36:37,279 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:36:37,665 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 18 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-08 15:36:37,665 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:36:37,912 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-08 15:36:37,913 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 75 treesize of output 60 [2024-09-08 15:36:38,106 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-09-08 15:36:38,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [636168146] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:36:38,106 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 15:36:38,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 12, 9] total 34 [2024-09-08 15:36:38,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438145482] [2024-09-08 15:36:38,107 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 15:36:38,107 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-09-08 15:36:38,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:36:38,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-09-08 15:36:38,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=1038, Unknown=0, NotChecked=0, Total=1190 [2024-09-08 15:36:38,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:36:38,108 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:36:38,109 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 3.142857142857143) internal successors, (110), 34 states have internal predecessors, (110), 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 15:36:38,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:36:38,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:36:38,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:36:38,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:36:38,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:36:38,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2024-09-08 15:36:38,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2024-09-08 15:36:38,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:36:38,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:36:40,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:36:40,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:36:40,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:36:40,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:36:40,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:36:40,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-08 15:36:40,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-09-08 15:36:40,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:36:40,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-09-08 15:36:40,183 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-09-08 15:36:40,366 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 15:36:40,367 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-08 15:36:40,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:36:40,367 INFO L85 PathProgramCache]: Analyzing trace with hash -27523250, now seen corresponding path program 2 times [2024-09-08 15:36:40,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:36:40,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907343128] [2024-09-08 15:36:40,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:36:40,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:36:40,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:36:43,645 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 15:36:43,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:36:43,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907343128] [2024-09-08 15:36:43,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907343128] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 15:36:43,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1803826712] [2024-09-08 15:36:43,647 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-08 15:36:43,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:36:43,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:36:43,649 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 15:36:43,650 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 15:36:43,760 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-08 15:36:43,760 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 15:36:43,762 INFO L262 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-09-08 15:36:43,765 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:36:44,340 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 39 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-08 15:36:44,340 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:36:44,996 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-08 15:36:44,997 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 108 treesize of output 114 [2024-09-08 15:36:45,290 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 25 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-08 15:36:45,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1803826712] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:36:45,291 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 15:36:45,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 16, 12] total 44 [2024-09-08 15:36:45,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540651668] [2024-09-08 15:36:45,291 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 15:36:45,291 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2024-09-08 15:36:45,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:36:45,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2024-09-08 15:36:45,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=1750, Unknown=0, NotChecked=0, Total=1980 [2024-09-08 15:36:45,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:36:45,293 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:36:45,294 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 3.022222222222222) internal successors, (136), 44 states have internal predecessors, (136), 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 15:36:45,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:36:45,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:36:45,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:36:45,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:36:45,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:36:45,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2024-09-08 15:36:45,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2024-09-08 15:36:45,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:36:45,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2024-09-08 15:36:45,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:36:47,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:36:47,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:36:47,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:36:47,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:36:47,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:36:47,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-08 15:36:47,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-09-08 15:36:47,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:36:47,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-09-08 15:36:47,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-09-08 15:36:47,984 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-09-08 15:36:48,172 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,SelfDestructingSolverStorable13 [2024-09-08 15:36:48,172 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-08 15:36:48,173 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:36:48,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1216987795, now seen corresponding path program 3 times [2024-09-08 15:36:48,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:36:48,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835559890] [2024-09-08 15:36:48,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:36:48,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:36:48,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:36:48,910 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 88 proven. 128 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-09-08 15:36:48,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:36:48,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835559890] [2024-09-08 15:36:48,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835559890] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 15:36:48,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [836203269] [2024-09-08 15:36:48,910 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-08 15:36:48,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:36:48,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:36:48,912 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 15:36:48,914 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 15:36:49,036 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-09-08 15:36:49,037 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 15:36:49,038 INFO L262 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-08 15:36:49,041 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:36:49,144 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 62 proven. 2 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2024-09-08 15:36:49,144 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:36:49,220 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 62 proven. 2 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2024-09-08 15:36:49,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [836203269] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:36:49,221 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 15:36:49,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 5, 5] total 21 [2024-09-08 15:36:49,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366549809] [2024-09-08 15:36:49,221 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 15:36:49,222 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-09-08 15:36:49,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:36:49,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-09-08 15:36:49,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2024-09-08 15:36:49,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:36:49,223 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:36:49,224 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 6.238095238095238) internal successors, (131), 21 states have internal predecessors, (131), 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 15:36:49,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:36:49,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:36:49,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:36:49,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:36:49,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:36:49,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2024-09-08 15:36:49,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2024-09-08 15:36:49,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:36:49,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2024-09-08 15:36:49,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2024-09-08 15:36:49,225 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:36:49,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:36:49,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:36:49,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:36:49,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:36:49,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:36:49,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-08 15:36:49,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-09-08 15:36:49,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:36:49,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-09-08 15:36:49,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-09-08 15:36:49,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-08 15:36:49,931 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-09-08 15:36:50,113 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,SelfDestructingSolverStorable14 [2024-09-08 15:36:50,114 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-08 15:36:50,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:36:50,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1647914883, now seen corresponding path program 4 times [2024-09-08 15:36:50,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:36:50,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846021372] [2024-09-08 15:36:50,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:36:50,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:36:50,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:36:50,855 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 85 proven. 124 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-08 15:36:50,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:36:50,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846021372] [2024-09-08 15:36:50,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846021372] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 15:36:50,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1370562212] [2024-09-08 15:36:50,856 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-08 15:36:50,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:36:50,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:36:50,859 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 15:36:50,860 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 15:36:51,015 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-08 15:36:51,015 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 15:36:51,018 INFO L262 TraceCheckSpWp]: Trace formula consists of 762 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-09-08 15:36:51,021 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:36:51,478 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 172 proven. 37 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-08 15:36:51,478 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:36:51,961 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 131 proven. 78 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-08 15:36:51,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1370562212] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:36:51,961 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 15:36:51,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 18, 18] total 49 [2024-09-08 15:36:51,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801992197] [2024-09-08 15:36:51,962 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 15:36:51,962 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-09-08 15:36:51,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:36:51,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-09-08 15:36:51,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=499, Invalid=1951, Unknown=0, NotChecked=0, Total=2450 [2024-09-08 15:36:51,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:36:51,965 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:36:51,965 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 4.16) internal successors, (208), 49 states have internal predecessors, (208), 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 15:36:51,965 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:36:51,965 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:36:51,965 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:36:51,965 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:36:51,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:36:51,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2024-09-08 15:36:51,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2024-09-08 15:36:51,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:36:51,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2024-09-08 15:36:51,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2024-09-08 15:36:51,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-09-08 15:36:51,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:36:52,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:36:52,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:36:52,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:36:52,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:36:52,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:36:52,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-08 15:36:52,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-09-08 15:36:52,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:36:52,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-09-08 15:36:52,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-09-08 15:36:52,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-08 15:36:52,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:36:52,301 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 15:36:52,486 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,SelfDestructingSolverStorable15 [2024-09-08 15:36:52,486 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-08 15:36:52,487 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:36:52,487 INFO L85 PathProgramCache]: Analyzing trace with hash -116565906, now seen corresponding path program 5 times [2024-09-08 15:36:52,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:36:52,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674458895] [2024-09-08 15:36:52,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:36:52,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:36:52,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:36:58,742 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 43 proven. 176 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 15:36:58,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:36:58,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674458895] [2024-09-08 15:36:58,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674458895] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 15:36:58,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [721625994] [2024-09-08 15:36:58,743 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-08 15:36:58,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:36:58,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:36:58,744 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 15:36:58,745 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-09-08 15:36:58,916 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2024-09-08 15:36:58,916 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 15:36:58,919 INFO L262 TraceCheckSpWp]: Trace formula consists of 771 conjuncts, 78 conjuncts are in the unsatisfiable core [2024-09-08 15:36:58,922 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:37:01,839 INFO L349 Elim1Store]: treesize reduction 188, result has 33.1 percent of original size [2024-09-08 15:37:01,840 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 117 treesize of output 124 [2024-09-08 15:37:02,364 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 21 proven. 198 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 15:37:02,364 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:37:05,760 INFO L349 Elim1Store]: treesize reduction 262, result has 44.1 percent of original size [2024-09-08 15:37:05,760 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 207 treesize of output 258 [2024-09-08 15:37:07,763 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 17 proven. 202 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 15:37:07,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [721625994] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:37:07,763 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 15:37:07,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 31, 30] total 89 [2024-09-08 15:37:07,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693149747] [2024-09-08 15:37:07,763 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 15:37:07,764 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 90 states [2024-09-08 15:37:07,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:37:07,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2024-09-08 15:37:07,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1025, Invalid=6985, Unknown=0, NotChecked=0, Total=8010 [2024-09-08 15:37:07,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:37:07,767 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:37:07,767 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 90 states, 90 states have (on average 2.7888888888888888) internal successors, (251), 89 states have internal predecessors, (251), 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 15:37:07,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:37:07,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:37:07,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:37:07,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:37:07,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:37:07,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2024-09-08 15:37:07,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2024-09-08 15:37:07,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:37:07,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2024-09-08 15:37:07,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2024-09-08 15:37:07,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-09-08 15:37:07,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:37:07,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:37:11,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:37:11,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:37:11,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:37:11,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:37:11,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:37:11,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-08 15:37:11,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-09-08 15:37:11,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:37:11,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-09-08 15:37:11,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-09-08 15:37:11,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-08 15:37:11,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:37:11,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-09-08 15:37:11,815 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-09-08 15:37:12,002 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-09-08 15:37:12,003 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-08 15:37:12,003 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:37:12,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1436803506, now seen corresponding path program 6 times [2024-09-08 15:37:12,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:37:12,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246321450] [2024-09-08 15:37:12,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:37:12,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:37:12,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:37:21,470 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 16 proven. 222 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 15:37:21,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:37:21,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246321450] [2024-09-08 15:37:21,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246321450] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 15:37:21,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [144739761] [2024-09-08 15:37:21,471 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-08 15:37:21,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:37:21,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:37:21,472 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 15:37:21,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-09-08 15:37:22,357 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2024-09-08 15:37:22,358 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 15:37:22,361 INFO L262 TraceCheckSpWp]: Trace formula consists of 789 conjuncts, 66 conjuncts are in the unsatisfiable core [2024-09-08 15:37:22,364 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:37:23,638 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 14 proven. 188 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-09-08 15:37:23,638 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:37:25,304 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-08 15:37:25,305 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 211 treesize of output 400 [2024-09-08 15:37:26,031 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 9 proven. 174 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-09-08 15:37:26,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [144739761] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:37:26,031 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 15:37:26,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 20, 18] total 68 [2024-09-08 15:37:26,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630014482] [2024-09-08 15:37:26,032 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 15:37:26,032 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 69 states [2024-09-08 15:37:26,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:37:26,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2024-09-08 15:37:26,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=432, Invalid=4260, Unknown=0, NotChecked=0, Total=4692 [2024-09-08 15:37:26,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:37:26,035 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:37:26,036 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 69 states, 69 states have (on average 3.550724637681159) internal successors, (245), 68 states have internal predecessors, (245), 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 15:37:26,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:37:26,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:37:26,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:37:26,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:37:26,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:37:26,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2024-09-08 15:37:26,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2024-09-08 15:37:26,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:37:26,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2024-09-08 15:37:26,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2024-09-08 15:37:26,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-09-08 15:37:26,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:37:26,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2024-09-08 15:37:26,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:37:33,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:37:33,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:37:33,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:37:33,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:37:33,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:37:33,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-08 15:37:33,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-09-08 15:37:33,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:37:33,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-09-08 15:37:33,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-09-08 15:37:33,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-08 15:37:33,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:37:33,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-09-08 15:37:33,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2024-09-08 15:37:33,990 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-09-08 15:37:34,177 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-09-08 15:37:34,177 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-08 15:37:34,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:37:34,178 INFO L85 PathProgramCache]: Analyzing trace with hash 247954473, now seen corresponding path program 7 times [2024-09-08 15:37:34,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:37:34,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646710737] [2024-09-08 15:37:34,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:37:34,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:37:34,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:37:56,632 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 9 proven. 296 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 15:37:56,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:37:56,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646710737] [2024-09-08 15:37:56,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646710737] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 15:37:56,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [159663239] [2024-09-08 15:37:56,633 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-08 15:37:56,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:37:56,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:37:56,634 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 15:37:56,635 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-09-08 15:37:56,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:37:56,793 INFO L262 TraceCheckSpWp]: Trace formula consists of 868 conjuncts, 87 conjuncts are in the unsatisfiable core [2024-09-08 15:37:56,795 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:37:58,778 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 30 proven. 274 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-08 15:37:58,778 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:38:00,838 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-08 15:38:00,839 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 14 select indices, 14 select index equivalence classes, 0 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 91 case distinctions, treesize of input 244 treesize of output 534 [2024-09-08 15:38:01,729 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 14 proven. 225 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-09-08 15:38:01,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [159663239] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:38:01,729 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 15:38:01,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 30, 19] total 81 [2024-09-08 15:38:01,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065126625] [2024-09-08 15:38:01,729 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 15:38:01,730 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 82 states [2024-09-08 15:38:01,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:38:01,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2024-09-08 15:38:01,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=533, Invalid=6109, Unknown=0, NotChecked=0, Total=6642 [2024-09-08 15:38:01,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:38:01,734 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:38:01,734 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 82 states, 82 states have (on average 3.341463414634146) internal successors, (274), 81 states have internal predecessors, (274), 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 15:38:01,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:38:01,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:38:01,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:38:01,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:38:01,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:38:01,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2024-09-08 15:38:01,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2024-09-08 15:38:01,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:38:01,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2024-09-08 15:38:01,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2024-09-08 15:38:01,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-09-08 15:38:01,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:38:01,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2024-09-08 15:38:01,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2024-09-08 15:38:01,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:38:21,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:38:21,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:38:21,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:38:21,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:38:21,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:38:21,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-08 15:38:21,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-09-08 15:38:21,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:38:21,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-09-08 15:38:21,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-09-08 15:38:21,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-08 15:38:21,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:38:21,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-09-08 15:38:21,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2024-09-08 15:38:21,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 152 states. [2024-09-08 15:38:21,424 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-09-08 15:38:21,611 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:38:21,611 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-08 15:38:21,611 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:38:21,611 INFO L85 PathProgramCache]: Analyzing trace with hash -780801978, now seen corresponding path program 8 times [2024-09-08 15:38:21,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:38:21,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637722588] [2024-09-08 15:38:21,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:38:21,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:38:21,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:38:27,320 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 106 proven. 370 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 15:38:27,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:38:27,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637722588] [2024-09-08 15:38:27,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637722588] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 15:38:27,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1475428643] [2024-09-08 15:38:27,320 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-08 15:38:27,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:38:27,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:38:27,321 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 15:38:27,322 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-09-08 15:38:27,543 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-08 15:38:27,543 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 15:38:27,547 INFO L262 TraceCheckSpWp]: Trace formula consists of 1021 conjuncts, 109 conjuncts are in the unsatisfiable core [2024-09-08 15:38:27,550 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:38:31,165 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-08 15:38:31,165 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 105 treesize of output 33 [2024-09-08 15:38:31,427 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 12 proven. 464 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 15:38:31,428 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:38:35,661 INFO L349 Elim1Store]: treesize reduction 280, result has 55.2 percent of original size [2024-09-08 15:38:35,662 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 279 treesize of output 410 [2024-09-08 15:38:37,799 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 12 proven. 464 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 15:38:37,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1475428643] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:38:37,800 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 15:38:37,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 39, 39] total 116 [2024-09-08 15:38:37,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048958883] [2024-09-08 15:38:37,800 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 15:38:37,801 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 117 states [2024-09-08 15:38:37,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 15:38:37,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 117 interpolants. [2024-09-08 15:38:37,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1946, Invalid=11626, Unknown=0, NotChecked=0, Total=13572 [2024-09-08 15:38:37,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:38:37,806 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:38:37,806 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 117 states, 117 states have (on average 2.9145299145299144) internal successors, (341), 116 states have internal predecessors, (341), 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 15:38:37,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:38:37,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:38:37,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:38:37,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:38:37,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:38:37,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2024-09-08 15:38:37,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2024-09-08 15:38:37,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:38:37,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2024-09-08 15:38:37,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2024-09-08 15:38:37,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-09-08 15:38:37,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:38:37,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2024-09-08 15:38:37,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2024-09-08 15:38:37,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 152 states. [2024-09-08 15:38:37,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:38:50,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:38:50,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:38:50,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:38:50,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:38:50,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:38:50,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-08 15:38:50,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-09-08 15:38:50,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:38:50,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-09-08 15:38:50,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-09-08 15:38:50,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-08 15:38:50,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 15:38:50,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-09-08 15:38:50,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2024-09-08 15:38:50,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 152 states. [2024-09-08 15:38:50,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2024-09-08 15:38:50,441 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-09-08 15:38:50,628 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,19 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:38:50,628 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-08 15:38:50,628 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:38:50,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1847407527, now seen corresponding path program 9 times [2024-09-08 15:38:50,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 15:38:50,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663804768] [2024-09-08 15:38:50,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:38:50,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 15:38:50,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:39:01,293 INFO L134 CoverageAnalysis]: Checked inductivity of 670 backedges. 163 proven. 507 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 15:39:01,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 15:39:01,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663804768] [2024-09-08 15:39:01,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663804768] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 15:39:01,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [561155739] [2024-09-08 15:39:01,294 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-08 15:39:01,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:39:01,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:39:01,295 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 15:39:01,296 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-09-08 15:39:01,840 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2024-09-08 15:39:01,840 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 15:39:01,846 INFO L262 TraceCheckSpWp]: Trace formula consists of 1180 conjuncts, 116 conjuncts are in the unsatisfiable core [2024-09-08 15:39:01,850 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:39:02,496 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2024-09-08 15:40:02,531 INFO L349 Elim1Store]: treesize reduction 664, result has 34.2 percent of original size [2024-09-08 15:40:02,531 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 18 select indices, 18 select index equivalence classes, 0 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 153 case distinctions, treesize of input 205 treesize of output 396 [2024-09-08 15:40:03,634 INFO L134 CoverageAnalysis]: Checked inductivity of 670 backedges. 35 proven. 626 refuted. 9 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 15:40:03,635 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:40:19,455 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 549 treesize of output 489 [2024-09-08 15:40:23,963 INFO L349 Elim1Store]: treesize reduction 802, result has 40.5 percent of original size [2024-09-08 15:40:23,975 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 20 select indices, 20 select index equivalence classes, 0 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 190 case distinctions, treesize of input 120001 treesize of output 49830 [2024-09-08 15:40:35,387 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-09-08 15:40:37,411 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-09-08 15:40:37,856 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-09-08 15:40:38,055 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-09-08 15:40:38,325 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-09-08 15:40:38,922 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-09-08 15:40:39,497 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-09-08 15:40:41,626 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-09-08 15:40:42,069 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-09-08 15:40:42,541 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-09-08 15:40:43,088 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-09-08 15:40:43,342 WARN L672 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2024-09-08 15:40:43,531 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-09-08 15:40:43,765 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-09-08 15:40:43,915 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-09-08 15:40:44,316 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-09-08 15:40:44,563 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-09-08 15:40:44,772 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-09-08 15:40:45,845 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-09-08 15:40:47,314 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-09-08 15:40:47,653 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-09-08 15:40:47,765 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-09-08 15:40:47,943 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-09-08 15:40:48,561 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-09-08 15:41:56,148 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 15:41:56,148 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 15:41:56,150 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2024-09-08 15:41:56,165 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-09-08 15:41:56,350 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,20 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 15:41:56,351 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.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.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) ... 77 more [2024-09-08 15:41:56,355 INFO L158 Benchmark]: Toolchain (without parser) took 338583.18ms. Allocated memory was 151.0MB in the beginning and 3.5GB in the end (delta: 3.3GB). Free memory was 96.2MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 2.2GB. Max. memory is 16.1GB. [2024-09-08 15:41:56,355 INFO L158 Benchmark]: Witness Parser took 0.22ms. Allocated memory is still 100.7MB. Free memory was 60.4MB in the beginning and 60.4MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-08 15:41:56,355 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 100.7MB. Free memory was 54.6MB in the beginning and 54.4MB in the end (delta: 109.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-08 15:41:56,356 INFO L158 Benchmark]: CACSL2BoogieTranslator took 551.60ms. Allocated memory is still 151.0MB. Free memory was 95.3MB in the beginning and 116.7MB in the end (delta: -21.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-08 15:41:56,356 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.52ms. Allocated memory is still 151.0MB. Free memory was 116.7MB in the beginning and 114.0MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-09-08 15:41:56,356 INFO L158 Benchmark]: Boogie Preprocessor took 45.78ms. Allocated memory is still 151.0MB. Free memory was 114.0MB in the beginning and 111.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-08 15:41:56,356 INFO L158 Benchmark]: RCFGBuilder took 928.16ms. Allocated memory is still 151.0MB. Free memory was 111.9MB in the beginning and 100.5MB in the end (delta: 11.5MB). Peak memory consumption was 61.3MB. Max. memory is 16.1GB. [2024-09-08 15:41:56,357 INFO L158 Benchmark]: TraceAbstraction took 336977.57ms. Allocated memory was 151.0MB in the beginning and 3.5GB in the end (delta: 3.3GB). Free memory was 100.5MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 2.2GB. Max. memory is 16.1GB. [2024-09-08 15:41:56,358 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 0.22ms. Allocated memory is still 100.7MB. Free memory was 60.4MB in the beginning and 60.4MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CDTParser took 0.15ms. Allocated memory is still 100.7MB. Free memory was 54.6MB in the beginning and 54.4MB in the end (delta: 109.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 551.60ms. Allocated memory is still 151.0MB. Free memory was 95.3MB in the beginning and 116.7MB in the end (delta: -21.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.52ms. Allocated memory is still 151.0MB. Free memory was 116.7MB in the beginning and 114.0MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.78ms. Allocated memory is still 151.0MB. Free memory was 114.0MB in the beginning and 111.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 928.16ms. Allocated memory is still 151.0MB. Free memory was 111.9MB in the beginning and 100.5MB in the end (delta: 11.5MB). Peak memory consumption was 61.3MB. Max. memory is 16.1GB. * TraceAbstraction took 336977.57ms. Allocated memory was 151.0MB in the beginning and 3.5GB in the end (delta: 3.3GB). Free memory was 100.5MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 2.2GB. 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: 6692, independent: 5657, independent conditional: 4419, independent unconditional: 1238, dependent: 1035, dependent conditional: 1019, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5813, independent: 5657, independent conditional: 4419, independent unconditional: 1238, dependent: 156, dependent conditional: 140, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 5813, independent: 5657, independent conditional: 4419, independent unconditional: 1238, dependent: 156, dependent conditional: 140, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5959, independent: 5657, independent conditional: 4419, independent unconditional: 1238, dependent: 302, dependent conditional: 286, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 5959, independent: 5657, independent conditional: 0, independent unconditional: 5657, dependent: 302, dependent conditional: 146, dependent unconditional: 156, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 5959, independent: 5657, independent conditional: 0, independent unconditional: 5657, dependent: 302, dependent conditional: 146, dependent unconditional: 156, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1026, independent: 988, independent conditional: 0, independent unconditional: 988, dependent: 38, dependent conditional: 22, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1026, independent: 928, independent conditional: 0, independent unconditional: 928, dependent: 98, dependent conditional: 0, dependent unconditional: 98, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 98, independent: 60, independent conditional: 0, independent unconditional: 60, dependent: 38, dependent conditional: 22, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 98, independent: 60, independent conditional: 0, independent unconditional: 60, dependent: 38, dependent conditional: 22, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 612, independent: 371, independent conditional: 0, independent unconditional: 371, dependent: 241, dependent conditional: 160, dependent unconditional: 81, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 5959, independent: 4669, independent conditional: 0, independent unconditional: 4669, dependent: 264, dependent conditional: 124, dependent unconditional: 140, unknown: 1026, unknown conditional: 22, unknown unconditional: 1004] , Statistics on independence cache: Total cache size (in pairs): 1026, Positive cache size: 988, Positive conditional cache size: 0, Positive unconditional cache size: 988, Negative cache size: 38, Negative conditional cache size: 22, Negative unconditional cache size: 16, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 4559, Maximal queried relation: 2, Independence queries for same thread: 879, Persistent sets #1 benchmarks: Persistent set computation time: 0.6s, Number of persistent set computation: 498, Number of trivial persistent sets: 412, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1254, independent: 1238, independent conditional: 0, independent unconditional: 1238, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 6692, independent: 5657, independent conditional: 4419, independent unconditional: 1238, dependent: 1035, dependent conditional: 1019, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5813, independent: 5657, independent conditional: 4419, independent unconditional: 1238, dependent: 156, dependent conditional: 140, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 5813, independent: 5657, independent conditional: 4419, independent unconditional: 1238, dependent: 156, dependent conditional: 140, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5959, independent: 5657, independent conditional: 4419, independent unconditional: 1238, dependent: 302, dependent conditional: 286, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 5959, independent: 5657, independent conditional: 0, independent unconditional: 5657, dependent: 302, dependent conditional: 146, dependent unconditional: 156, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 5959, independent: 5657, independent conditional: 0, independent unconditional: 5657, dependent: 302, dependent conditional: 146, dependent unconditional: 156, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1026, independent: 988, independent conditional: 0, independent unconditional: 988, dependent: 38, dependent conditional: 22, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1026, independent: 928, independent conditional: 0, independent unconditional: 928, dependent: 98, dependent conditional: 0, dependent unconditional: 98, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 98, independent: 60, independent conditional: 0, independent unconditional: 60, dependent: 38, dependent conditional: 22, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 98, independent: 60, independent conditional: 0, independent unconditional: 60, dependent: 38, dependent conditional: 22, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 612, independent: 371, independent conditional: 0, independent unconditional: 371, dependent: 241, dependent conditional: 160, dependent unconditional: 81, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 5959, independent: 4669, independent conditional: 0, independent unconditional: 4669, dependent: 264, dependent conditional: 124, dependent unconditional: 140, unknown: 1026, unknown conditional: 22, unknown unconditional: 1004] , Statistics on independence cache: Total cache size (in pairs): 1026, Positive cache size: 988, Positive conditional cache size: 0, Positive unconditional cache size: 988, Negative cache size: 38, Negative conditional cache size: 22, Negative unconditional cache size: 16, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 4559, Maximal queried relation: 2, Independence queries for same thread: 879 - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 6669, independent: 5567, independent conditional: 4369, independent unconditional: 1198, dependent: 1102, dependent conditional: 1086, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5766, independent: 5567, independent conditional: 4369, independent unconditional: 1198, dependent: 199, dependent conditional: 183, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 5766, independent: 5567, independent conditional: 4369, independent unconditional: 1198, dependent: 199, dependent conditional: 183, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5954, independent: 5567, independent conditional: 4369, independent unconditional: 1198, dependent: 387, dependent conditional: 371, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 5954, independent: 5567, independent conditional: 0, independent unconditional: 5567, dependent: 387, dependent conditional: 188, dependent unconditional: 199, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 5954, independent: 5567, independent conditional: 0, independent unconditional: 5567, dependent: 387, dependent conditional: 188, dependent unconditional: 199, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 989, independent: 951, independent conditional: 0, independent unconditional: 951, dependent: 38, dependent conditional: 22, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 989, independent: 891, independent conditional: 0, independent unconditional: 891, dependent: 98, dependent conditional: 0, dependent unconditional: 98, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 98, independent: 60, independent conditional: 0, independent unconditional: 60, dependent: 38, dependent conditional: 22, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 98, independent: 60, independent conditional: 0, independent unconditional: 60, dependent: 38, dependent conditional: 22, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 490, independent: 290, independent conditional: 0, independent unconditional: 290, dependent: 200, dependent conditional: 136, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 5954, independent: 4616, independent conditional: 0, independent unconditional: 4616, dependent: 349, dependent conditional: 166, dependent unconditional: 183, unknown: 989, unknown conditional: 22, unknown unconditional: 967] , Statistics on independence cache: Total cache size (in pairs): 989, Positive cache size: 951, Positive conditional cache size: 0, Positive unconditional cache size: 951, Negative cache size: 38, Negative conditional cache size: 22, Negative unconditional cache size: 16, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 4552, Maximal queried relation: 2, Independence queries for same thread: 903, Persistent sets #1 benchmarks: Persistent set computation time: 0.4s, Number of persistent set computation: 436, Number of trivial persistent sets: 397, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1214, independent: 1198, independent conditional: 0, independent unconditional: 1198, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 6669, independent: 5567, independent conditional: 4369, independent unconditional: 1198, dependent: 1102, dependent conditional: 1086, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5766, independent: 5567, independent conditional: 4369, independent unconditional: 1198, dependent: 199, dependent conditional: 183, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 5766, independent: 5567, independent conditional: 4369, independent unconditional: 1198, dependent: 199, dependent conditional: 183, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5954, independent: 5567, independent conditional: 4369, independent unconditional: 1198, dependent: 387, dependent conditional: 371, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 5954, independent: 5567, independent conditional: 0, independent unconditional: 5567, dependent: 387, dependent conditional: 188, dependent unconditional: 199, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 5954, independent: 5567, independent conditional: 0, independent unconditional: 5567, dependent: 387, dependent conditional: 188, dependent unconditional: 199, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 989, independent: 951, independent conditional: 0, independent unconditional: 951, dependent: 38, dependent conditional: 22, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 989, independent: 891, independent conditional: 0, independent unconditional: 891, dependent: 98, dependent conditional: 0, dependent unconditional: 98, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 98, independent: 60, independent conditional: 0, independent unconditional: 60, dependent: 38, dependent conditional: 22, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 98, independent: 60, independent conditional: 0, independent unconditional: 60, dependent: 38, dependent conditional: 22, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 490, independent: 290, independent conditional: 0, independent unconditional: 290, dependent: 200, dependent conditional: 136, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 5954, independent: 4616, independent conditional: 0, independent unconditional: 4616, dependent: 349, dependent conditional: 166, dependent unconditional: 183, unknown: 989, unknown conditional: 22, unknown unconditional: 967] , Statistics on independence cache: Total cache size (in pairs): 989, Positive cache size: 951, Positive conditional cache size: 0, Positive unconditional cache size: 951, Negative cache size: 38, Negative conditional cache size: 22, Negative unconditional cache size: 16, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 4552, Maximal queried relation: 2, Independence queries for same thread: 903 - 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 15:41:56,381 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Forceful destruction successful, exit code 0 [2024-09-08 15:41:56,581 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Forceful destruction successful, exit code 0 [2024-09-08 15:41:56,782 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-send-receive.wvr.c ./goblint.2024-09-02_08-21-23.files/mutex-meet-local/popl20-send-receive.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 15:41:59,167 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-08 15:41:59,244 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf [2024-09-08 15:41:59,248 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-08 15:41:59,249 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-08 15:41:59,281 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-08 15:41:59,281 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-08 15:41:59,281 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-08 15:41:59,282 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-08 15:41:59,282 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-08 15:41:59,283 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-08 15:41:59,283 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-08 15:41:59,283 INFO L153 SettingsManager]: * Use SBE=true [2024-09-08 15:41:59,284 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-08 15:41:59,285 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-08 15:41:59,285 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-08 15:41:59,287 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-08 15:41:59,288 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-08 15:41:59,289 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-08 15:41:59,289 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-08 15:41:59,289 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-08 15:41:59,289 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-08 15:41:59,290 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-08 15:41:59,290 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-08 15:41:59,290 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-08 15:41:59,290 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-08 15:41:59,291 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-08 15:41:59,291 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-08 15:41:59,291 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-08 15:41:59,291 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-08 15:41:59,291 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-08 15:41:59,292 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-08 15:41:59,292 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-08 15:41:59,292 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-08 15:41:59,292 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-08 15:41:59,292 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-08 15:41:59,300 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-09-08 15:41:59,300 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-08 15:41:59,301 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-08 15:41:59,301 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-09-08 15:41:59,301 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-09-08 15:41:59,302 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-09-08 15:41:59,302 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-08 15:41:59,302 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-09-08 15:41:59,608 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-08 15:41:59,627 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-08 15:41:59,629 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-08 15:41:59,630 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-08 15:41:59,631 INFO L274 PluginConnector]: CDTParser initialized [2024-09-08 15:41:59,632 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-send-receive.wvr.c [2024-09-08 15:42:01,150 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-08 15:42:01,347 INFO L384 CDTParser]: Found 1 translation units. [2024-09-08 15:42:01,347 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-send-receive.wvr.c [2024-09-08 15:42:01,355 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/1b6c4752c/04b729aa540d42e49c780dedc9dccd1d/FLAG10654ca51 [2024-09-08 15:42:01,716 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/1b6c4752c/04b729aa540d42e49c780dedc9dccd1d [2024-09-08 15:42:01,718 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-08 15:42:01,719 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-08 15:42:01,720 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-09-02_08-21-23.files/mutex-meet-local/popl20-send-receive.wvr.yml/witness.yml [2024-09-08 15:42:01,854 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-08 15:42:01,855 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-08 15:42:01,856 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-08 15:42:01,856 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-08 15:42:01,861 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-08 15:42:01,863 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 03:42:01" (1/2) ... [2024-09-08 15:42:01,864 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@789bd566 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:42:01, skipping insertion in model container [2024-09-08 15:42:01,864 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 03:42:01" (1/2) ... [2024-09-08 15:42:01,866 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@70637483 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:42:01, skipping insertion in model container [2024-09-08 15:42:01,866 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 03:42:01" (2/2) ... [2024-09-08 15:42:01,866 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@789bd566 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 03:42:01, skipping insertion in model container [2024-09-08 15:42:01,867 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 03:42:01" (2/2) ... [2024-09-08 15:42:01,902 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-08 15:42:01,902 INFO L1541 ArrayList]: Location invariant before [L74-L74] (((((((((((((2147483648LL + (long long )front) + (long long )n >= 0LL) && ((2147483648LL + (long long )back) + (long long )n >= 0LL)) && ((1073741823LL - (long long )n) + (long long )v_assert >= 0LL)) && ((2147483647LL - (long long )front) + (long long )n >= 0LL)) && ((2147483647LL - (long long )front) + (long long )v_assert >= 0LL)) && ((long long )n + (long long )v_assert >= 0LL)) && ((1LL + (long long )n) - (long long )v_assert >= 0LL)) && ((3221225471LL + (long long )front) - (long long )n >= 0LL)) && ((3221225471LL + (long long )back) - (long long )n >= 0LL)) && ((4294967295LL + (long long )back) - (long long )front >= 0LL)) && ((1073741824LL - (long long )n) - (long long )v_assert >= 0LL)) && ((2147483648LL - (long long )front) - (long long )v_assert >= 0LL)) && ((3221225470LL - (long long )front) - (long long )n >= 0LL) [2024-09-08 15:42:01,902 INFO L1541 ArrayList]: Location invariant before [L85-L85] (((((((((((((2147483648LL + (long long )front) + (long long )n >= 0LL) && ((2147483648LL + (long long )back) + (long long )n >= 0LL)) && ((1073741823LL - (long long )n) + (long long )v_assert >= 0LL)) && ((2147483647LL - (long long )front) + (long long )n >= 0LL)) && ((2147483647LL - (long long )front) + (long long )v_assert >= 0LL)) && ((long long )n + (long long )v_assert >= 0LL)) && ((1LL + (long long )n) - (long long )v_assert >= 0LL)) && ((3221225471LL + (long long )front) - (long long )n >= 0LL)) && ((3221225471LL + (long long )back) - (long long )n >= 0LL)) && ((4294967295LL + (long long )back) - (long long )front >= 0LL)) && ((1073741824LL - (long long )n) - (long long )v_assert >= 0LL)) && ((2147483648LL - (long long )front) - (long long )v_assert >= 0LL)) && ((3221225470LL - (long long )front) - (long long )n >= 0LL) [2024-09-08 15:42:01,903 INFO L1541 ArrayList]: Location invariant before [L58-L58] (((((((((((((2147483648LL + (long long )front) + (long long )n >= 0LL) && ((2147483648LL + (long long )back) + (long long )n >= 0LL)) && ((1073741823LL - (long long )n) + (long long )v_assert >= 0LL)) && ((2147483647LL - (long long )front) + (long long )n >= 0LL)) && ((2147483647LL - (long long )front) + (long long )v_assert >= 0LL)) && ((long long )n + (long long )v_assert >= 0LL)) && ((1LL + (long long )n) - (long long )v_assert >= 0LL)) && ((3221225471LL + (long long )front) - (long long )n >= 0LL)) && ((3221225471LL + (long long )back) - (long long )n >= 0LL)) && ((4294967295LL + (long long )back) - (long long )front >= 0LL)) && ((1073741824LL - (long long )n) - (long long )v_assert >= 0LL)) && ((2147483648LL - (long long )front) - (long long )v_assert >= 0LL)) && ((3221225470LL - (long long )front) - (long long )n >= 0LL) [2024-09-08 15:42:01,903 INFO L1541 ArrayList]: Location invariant before [L79-L79] (((((((((((((2147483648LL + (long long )front) + (long long )n >= 0LL) && ((2147483648LL + (long long )back) + (long long )n >= 0LL)) && ((1073741823LL - (long long )n) + (long long )v_assert >= 0LL)) && ((2147483647LL - (long long )front) + (long long )n >= 0LL)) && ((2147483647LL - (long long )front) + (long long )v_assert >= 0LL)) && ((long long )n + (long long )v_assert >= 0LL)) && ((1LL + (long long )n) - (long long )v_assert >= 0LL)) && ((3221225471LL + (long long )front) - (long long )n >= 0LL)) && ((3221225471LL + (long long )back) - (long long )n >= 0LL)) && ((4294967295LL + (long long )back) - (long long )front >= 0LL)) && ((1073741824LL - (long long )n) - (long long )v_assert >= 0LL)) && ((2147483648LL - (long long )front) - (long long )v_assert >= 0LL)) && ((3221225470LL - (long long )front) - (long long )n >= 0LL) [2024-09-08 15:42:01,903 INFO L1541 ArrayList]: Location invariant before [L94-L94] (((((((((((((2147483648LL + (long long )front) + (long long )n >= 0LL) && ((2147483648LL + (long long )back) + (long long )n >= 0LL)) && ((1073741823LL - (long long )n) + (long long )v_assert >= 0LL)) && ((2147483647LL - (long long )front) + (long long )n >= 0LL)) && ((2147483647LL - (long long )front) + (long long )v_assert >= 0LL)) && ((long long )n + (long long )v_assert >= 0LL)) && ((1LL + (long long )n) - (long long )v_assert >= 0LL)) && ((3221225471LL + (long long )front) - (long long )n >= 0LL)) && ((3221225471LL + (long long )back) - (long long )n >= 0LL)) && ((4294967295LL + (long long )back) - (long long )front >= 0LL)) && ((1073741824LL - (long long )n) - (long long )v_assert >= 0LL)) && ((2147483648LL - (long long )front) - (long long )v_assert >= 0LL)) && ((3221225470LL - (long long )front) - (long long )n >= 0LL) [2024-09-08 15:42:01,903 INFO L1541 ArrayList]: Location invariant before [L49-L49] (((((((((((((2147483648LL + (long long )front) + (long long )n >= 0LL) && ((2147483648LL + (long long )back) + (long long )n >= 0LL)) && ((1073741823LL - (long long )n) + (long long )v_assert >= 0LL)) && ((2147483647LL - (long long )front) + (long long )n >= 0LL)) && ((2147483647LL - (long long )front) + (long long )v_assert >= 0LL)) && ((long long )n + (long long )v_assert >= 0LL)) && ((1LL + (long long )n) - (long long )v_assert >= 0LL)) && ((3221225471LL + (long long )front) - (long long )n >= 0LL)) && ((3221225471LL + (long long )back) - (long long )n >= 0LL)) && ((4294967295LL + (long long )back) - (long long )front >= 0LL)) && ((1073741824LL - (long long )n) - (long long )v_assert >= 0LL)) && ((2147483648LL - (long long )front) - (long long )v_assert >= 0LL)) && ((3221225470LL - (long long )front) - (long long )n >= 0LL) [2024-09-08 15:42:01,903 INFO L1541 ArrayList]: Location invariant before [L53-L53] (((((((((((((2147483648LL + (long long )front) + (long long )n >= 0LL) && ((2147483648LL + (long long )back) + (long long )n >= 0LL)) && ((1073741823LL - (long long )n) + (long long )v_assert >= 0LL)) && ((2147483647LL - (long long )front) + (long long )n >= 0LL)) && ((2147483647LL - (long long )front) + (long long )v_assert >= 0LL)) && ((long long )n + (long long )v_assert >= 0LL)) && ((1LL + (long long )n) - (long long )v_assert >= 0LL)) && ((3221225471LL + (long long )front) - (long long )n >= 0LL)) && ((3221225471LL + (long long )back) - (long long )n >= 0LL)) && ((4294967295LL + (long long )back) - (long long )front >= 0LL)) && ((1073741824LL - (long long )n) - (long long )v_assert >= 0LL)) && ((2147483648LL - (long long )front) - (long long )v_assert >= 0LL)) && ((3221225470LL - (long long )front) - (long long )n >= 0LL) [2024-09-08 15:42:01,903 INFO L1541 ArrayList]: Location invariant before [L68-L68] (((((((((((((2147483648LL + (long long )front) + (long long )n >= 0LL) && ((2147483648LL + (long long )back) + (long long )n >= 0LL)) && ((1073741823LL - (long long )n) + (long long )v_assert >= 0LL)) && ((2147483647LL - (long long )front) + (long long )n >= 0LL)) && ((2147483647LL - (long long )front) + (long long )v_assert >= 0LL)) && ((long long )n + (long long )v_assert >= 0LL)) && ((1LL + (long long )n) - (long long )v_assert >= 0LL)) && ((3221225471LL + (long long )front) - (long long )n >= 0LL)) && ((3221225471LL + (long long )back) - (long long )n >= 0LL)) && ((4294967295LL + (long long )back) - (long long )front >= 0LL)) && ((1073741824LL - (long long )n) - (long long )v_assert >= 0LL)) && ((2147483648LL - (long long )front) - (long long )v_assert >= 0LL)) && ((3221225470LL - (long long )front) - (long long )n >= 0LL) [2024-09-08 15:42:01,925 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-08 15:42:02,120 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-send-receive.wvr.c[3146,3159] [2024-09-08 15:42:02,135 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-08 15:42:02,149 INFO L200 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-09-08 15:42:02,271 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-send-receive.wvr.c[3146,3159] [2024-09-08 15:42:02,274 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-08 15:42:02,293 INFO L204 MainTranslator]: Completed translation [2024-09-08 15:42:02,293 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 03:42:02 WrapperNode [2024-09-08 15:42:02,294 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-08 15:42:02,295 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-08 15:42:02,295 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-08 15:42:02,295 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-08 15:42:02,302 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 03:42:02" (1/1) ... [2024-09-08 15:42:02,315 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 03:42:02" (1/1) ... [2024-09-08 15:42:02,361 INFO L138 Inliner]: procedures = 26, calls = 37, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 159 [2024-09-08 15:42:02,361 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-08 15:42:02,362 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-08 15:42:02,362 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-08 15:42:02,362 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-08 15:42:02,372 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 03:42:02" (1/1) ... [2024-09-08 15:42:02,373 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 03:42:02" (1/1) ... [2024-09-08 15:42:02,380 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 03:42:02" (1/1) ... [2024-09-08 15:42:02,380 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 03:42:02" (1/1) ... [2024-09-08 15:42:02,403 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 03:42:02" (1/1) ... [2024-09-08 15:42:02,408 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 03:42:02" (1/1) ... [2024-09-08 15:42:02,414 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 03:42:02" (1/1) ... [2024-09-08 15:42:02,415 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 03:42:02" (1/1) ... [2024-09-08 15:42:02,419 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-08 15:42:02,420 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-08 15:42:02,420 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-08 15:42:02,420 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-08 15:42:02,421 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 03:42:02" (1/1) ... [2024-09-08 15:42:02,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-08 15:42:02,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:42:02,459 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 15:42:02,463 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 15:42:02,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-08 15:42:02,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-09-08 15:42:02,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-09-08 15:42:02,512 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-09-08 15:42:02,512 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-09-08 15:42:02,512 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-09-08 15:42:02,512 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-09-08 15:42:02,512 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-09-08 15:42:02,512 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-09-08 15:42:02,513 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-09-08 15:42:02,513 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-09-08 15:42:02,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-09-08 15:42:02,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-08 15:42:02,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-08 15:42:02,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-09-08 15:42:02,516 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 15:42:02,643 INFO L242 CfgBuilder]: Building ICFG [2024-09-08 15:42:02,645 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-08 15:42:03,367 INFO L287 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-09-08 15:42:03,371 INFO L291 CfgBuilder]: Performing block encoding [2024-09-08 15:42:03,611 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-08 15:42:03,612 INFO L318 CfgBuilder]: Removed 3 assume(true) statements. [2024-09-08 15:42:03,612 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 03:42:03 BoogieIcfgContainer [2024-09-08 15:42:03,612 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-08 15:42:03,614 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-08 15:42:03,614 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-08 15:42:03,617 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-08 15:42:03,617 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 03:42:01" (1/4) ... [2024-09-08 15:42:03,618 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c3c995e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 03:42:03, skipping insertion in model container [2024-09-08 15:42:03,618 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 03:42:01" (2/4) ... [2024-09-08 15:42:03,618 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c3c995e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 08.09 03:42:03, skipping insertion in model container [2024-09-08 15:42:03,618 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 03:42:02" (3/4) ... [2024-09-08 15:42:03,619 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c3c995e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 08.09 03:42:03, skipping insertion in model container [2024-09-08 15:42:03,619 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 03:42:03" (4/4) ... [2024-09-08 15:42:03,620 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-send-receive.wvr.c [2024-09-08 15:42:03,635 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-08 15:42:03,635 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2024-09-08 15:42:03,635 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-09-08 15:42:03,699 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-09-08 15:42:03,745 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 15:42:03,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-08 15:42:03,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:42:03,747 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 15:42:03,749 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 15:42:03,781 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-08 15:42:03,796 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread2Thread1of1ForFork2 ======== [2024-09-08 15:42:03,817 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;@52077cad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 15:42:03,817 INFO L337 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-09-08 15:42:04,266 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-09-08 15:42:04,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:42:04,272 INFO L85 PathProgramCache]: Analyzing trace with hash 2048949623, now seen corresponding path program 1 times [2024-09-08 15:42:04,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-09-08 15:42:04,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1013511941] [2024-09-08 15:42:04,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:42:04,285 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 15:42:04,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-09-08 15:42:04,307 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 15:42:04,309 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 (3)] Waiting until timeout for monitored process [2024-09-08 15:42:04,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:42:04,405 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-08 15:42:04,410 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:42:04,706 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 15:42:04,706 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-08 15:42:04,707 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-09-08 15:42:04,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1013511941] [2024-09-08 15:42:04,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1013511941] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 15:42:04,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 15:42:04,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-08 15:42:04,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725925888] [2024-09-08 15:42:04,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 15:42:04,716 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-08 15:42:04,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-09-08 15:42:04,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-08 15:42:04,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-08 15:42:04,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:42:04,745 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:42:04,746 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) 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 15:42:04,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:42:04,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:42:04,887 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 15:42:05,085 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 15:42:05,086 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-09-08 15:42:05,086 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:42:05,087 INFO L85 PathProgramCache]: Analyzing trace with hash -810994900, now seen corresponding path program 1 times [2024-09-08 15:42:05,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-09-08 15:42:05,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1503500695] [2024-09-08 15:42:05,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:42:05,088 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 15:42:05,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-09-08 15:42:05,089 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 15:42:05,091 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 15:42:05,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:42:05,184 INFO L262 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-08 15:42:05,186 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:42:05,392 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 15:42:05,393 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:42:06,592 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 15:42:06,593 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-09-08 15:42:06,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1503500695] [2024-09-08 15:42:06,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1503500695] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:42:06,594 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-08 15:42:06,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 7 [2024-09-08 15:42:06,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340647297] [2024-09-08 15:42:06,594 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-08 15:42:06,596 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-08 15:42:06,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-09-08 15:42:06,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-08 15:42:06,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-09-08 15:42:06,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:42:06,600 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:42:06,600 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 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 15:42:06,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:42:06,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:42:11,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:42:11,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:42:11,026 INFO L785 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 4 remaining) [2024-09-08 15:42:11,026 INFO L785 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 4 remaining) [2024-09-08 15:42:11,026 INFO L785 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 4 remaining) [2024-09-08 15:42:11,027 INFO L785 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 4 remaining) [2024-09-08 15:42:11,031 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 (4)] Ended with exit code 0 [2024-09-08 15:42:11,227 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 15:42:11,234 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1] [2024-09-08 15:42:11,236 INFO L312 ceAbstractionStarter]: Result for error location thread2Thread1of1ForFork2 was SAFE,SAFE,SAFE,SAFE (1/4) [2024-09-08 15:42:11,240 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 15:42:11,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-08 15:42:11,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:42:11,248 INFO L229 MonitoredProcess]: Starting monitored process 5 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 15:42:11,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (5)] Waiting until timeout for monitored process [2024-09-08 15:42:11,252 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-08 15:42:11,254 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread1Thread1of1ForFork1 ======== [2024-09-08 15:42:11,255 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;@52077cad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 15:42:11,255 INFO L337 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-09-08 15:42:11,466 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 15:42:11,467 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:42:11,467 INFO L85 PathProgramCache]: Analyzing trace with hash 462750572, now seen corresponding path program 1 times [2024-09-08 15:42:11,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-09-08 15:42:11,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1885894514] [2024-09-08 15:42:11,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:42:11,468 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 15:42:11,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-09-08 15:42:11,471 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 15:42:11,473 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 15:42:11,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:42:11,530 INFO L262 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-08 15:42:11,531 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:42:11,624 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 15:42:11,624 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-08 15:42:11,625 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-09-08 15:42:11,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1885894514] [2024-09-08 15:42:11,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1885894514] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 15:42:11,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 15:42:11,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-08 15:42:11,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745845000] [2024-09-08 15:42:11,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 15:42:11,627 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-08 15:42:11,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-09-08 15:42:11,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-08 15:42:11,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-08 15:42:11,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:42:11,631 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:42:11,631 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 15:42:11,631 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:42:11,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:42:11,709 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 15:42:11,903 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 15:42:11,904 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-08 15:42:11,905 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:42:11,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1457445793, now seen corresponding path program 1 times [2024-09-08 15:42:11,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-09-08 15:42:11,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [403801497] [2024-09-08 15:42:11,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:42:11,905 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 15:42:11,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-09-08 15:42:11,907 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 15:42:11,908 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 15:42:11,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:42:11,954 INFO L262 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-08 15:42:11,955 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:42:12,075 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 15:42:12,076 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:42:12,582 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 15:42:12,583 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-09-08 15:42:12,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [403801497] [2024-09-08 15:42:12,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [403801497] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:42:12,583 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-08 15:42:12,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2024-09-08 15:42:12,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910268136] [2024-09-08 15:42:12,583 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-08 15:42:12,584 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-08 15:42:12,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-09-08 15:42:12,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-08 15:42:12,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-09-08 15:42:12,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:42:12,584 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:42:12,585 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 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 15:42:12,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:42:12,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:42:16,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:42:16,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:42:16,502 INFO L785 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 3 remaining) [2024-09-08 15:42:16,502 INFO L785 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 3 remaining) [2024-09-08 15:42:16,502 INFO L785 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 3 remaining) [2024-09-08 15:42:16,507 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 15:42:16,703 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 15:42:16,704 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1] [2024-09-08 15:42:16,705 INFO L312 ceAbstractionStarter]: Result for error location thread1Thread1of1ForFork1 was SAFE,SAFE,SAFE (2/4) [2024-09-08 15:42:16,708 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 15:42:16,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-08 15:42:16,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 15:42:16,710 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-09-08 15:42:16,711 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (8)] Waiting until timeout for monitored process [2024-09-08 15:42:16,712 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-08 15:42:16,713 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-09-08 15:42:16,713 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;@52077cad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 15:42:16,713 INFO L337 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-09-08 15:42:18,734 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-08 15:42:18,734 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:42:18,734 INFO L85 PathProgramCache]: Analyzing trace with hash 419980467, now seen corresponding path program 1 times [2024-09-08 15:42:18,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-09-08 15:42:18,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [817531143] [2024-09-08 15:42:18,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:42:18,736 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 15:42:18,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-09-08 15:42:18,739 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 15:42:18,741 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 15:42:18,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:42:18,811 INFO L262 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-09-08 15:42:18,812 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:42:18,854 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 15:42:18,855 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-08 15:42:18,855 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-09-08 15:42:18,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [817531143] [2024-09-08 15:42:18,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [817531143] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 15:42:18,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 15:42:18,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-08 15:42:18,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850265293] [2024-09-08 15:42:18,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 15:42:18,856 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-08 15:42:18,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-09-08 15:42:18,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-08 15:42:18,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-08 15:42:18,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:42:18,858 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:42:18,858 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 15:42:18,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:42:19,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:42:19,307 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 (9)] Forceful destruction successful, exit code 0 [2024-09-08 15:42:19,502 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 15:42:19,502 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-08 15:42:19,503 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:42:19,503 INFO L85 PathProgramCache]: Analyzing trace with hash -167736829, now seen corresponding path program 1 times [2024-09-08 15:42:19,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-09-08 15:42:19,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1353589549] [2024-09-08 15:42:19,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:42:19,503 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 15:42:19,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-09-08 15:42:19,507 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 15:42:19,508 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 15:42:19,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:42:19,606 INFO L262 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-08 15:42:19,608 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:42:19,784 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 15:42:19,784 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:42:20,102 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 15:42:20,103 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-09-08 15:42:20,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1353589549] [2024-09-08 15:42:20,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1353589549] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:42:20,103 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-08 15:42:20,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-09-08 15:42:20,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148923883] [2024-09-08 15:42:20,104 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-08 15:42:20,104 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-08 15:42:20,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-09-08 15:42:20,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-08 15:42:20,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-09-08 15:42:20,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:42:20,106 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:42:20,106 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 9 states have internal predecessors, (57), 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 15:42:20,106 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:42:20,106 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:42:21,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:42:21,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 15:42:21,682 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 (10)] Ended with exit code 0 [2024-09-08 15:42:21,875 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 15:42:21,876 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-08 15:42:21,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:42:21,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1017536008, now seen corresponding path program 2 times [2024-09-08 15:42:21,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-09-08 15:42:21,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1682407845] [2024-09-08 15:42:21,877 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-08 15:42:21,877 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 15:42:21,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-09-08 15:42:21,879 INFO L229 MonitoredProcess]: Starting monitored process 11 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 15:42:21,879 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 (11)] Waiting until timeout for monitored process [2024-09-08 15:42:21,984 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-08 15:42:21,984 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 15:42:21,988 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-08 15:42:21,990 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:42:22,056 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-08 15:42:22,057 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:42:22,141 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-08 15:42:22,142 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-09-08 15:42:22,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1682407845] [2024-09-08 15:42:22,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1682407845] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:42:22,142 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-08 15:42:22,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-09-08 15:42:22,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183443730] [2024-09-08 15:42:22,143 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-08 15:42:22,143 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-08 15:42:22,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-09-08 15:42:22,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-08 15:42:22,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-09-08 15:42:22,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:42:22,144 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:42:22,144 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 7 states have internal predecessors, (57), 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 15:42:22,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:42:22,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-08 15:42:22,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:42:23,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:42:23,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 15:42:23,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:42:23,450 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 (11)] Ended with exit code 0 [2024-09-08 15:42:23,643 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /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 15:42:23,644 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-08 15:42:23,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:42:23,644 INFO L85 PathProgramCache]: Analyzing trace with hash 145366067, now seen corresponding path program 3 times [2024-09-08 15:42:23,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-09-08 15:42:23,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1999467591] [2024-09-08 15:42:23,645 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-08 15:42:23,645 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 15:42:23,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-09-08 15:42:23,648 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 15:42:23,649 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 15:42:23,754 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-09-08 15:42:23,755 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 15:42:23,757 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-08 15:42:23,759 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:42:23,912 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-09-08 15:42:23,912 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-08 15:42:23,912 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-09-08 15:42:23,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1999467591] [2024-09-08 15:42:23,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1999467591] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 15:42:23,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 15:42:23,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-08 15:42:23,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339614390] [2024-09-08 15:42:23,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 15:42:23,914 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-08 15:42:23,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-09-08 15:42:23,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-08 15:42:23,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-08 15:42:23,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:42:23,916 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:42:23,916 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 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 15:42:23,916 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:42:23,916 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-08 15:42:23,916 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:42:23,916 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:42:24,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:42:24,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 15:42:24,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:42:24,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:42:24,255 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 (12)] Ended with exit code 0 [2024-09-08 15:42:24,451 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 15:42:24,452 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-08 15:42:24,452 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:42:24,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1430230558, now seen corresponding path program 1 times [2024-09-08 15:42:24,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-09-08 15:42:24,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [308424420] [2024-09-08 15:42:24,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:42:24,453 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 15:42:24,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-09-08 15:42:24,454 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 15:42:24,455 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 15:42:24,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:42:24,574 INFO L262 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-08 15:42:24,576 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:42:24,602 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 27 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-09-08 15:42:24,603 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:42:24,628 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 27 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-09-08 15:42:24,629 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-09-08 15:42:24,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [308424420] [2024-09-08 15:42:24,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [308424420] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:42:24,629 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-08 15:42:24,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2024-09-08 15:42:24,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634876655] [2024-09-08 15:42:24,630 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-08 15:42:24,630 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-08 15:42:24,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-09-08 15:42:24,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-08 15:42:24,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-08 15:42:24,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:42:24,631 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:42:24,631 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 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 15:42:24,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:42:24,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-08 15:42:24,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:42:24,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:42:24,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:42:25,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:42:25,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 15:42:25,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:42:25,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:42:25,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:42:25,060 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 15:42:25,254 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 15:42:25,255 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-08 15:42:25,255 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:42:25,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1571962591, now seen corresponding path program 1 times [2024-09-08 15:42:25,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-09-08 15:42:25,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2036301499] [2024-09-08 15:42:25,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 15:42:25,256 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 15:42:25,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-09-08 15:42:25,257 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 15:42:25,258 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 15:42:25,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:42:25,465 INFO L262 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-08 15:42:25,468 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:42:25,652 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 5 proven. 36 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-09-08 15:42:25,652 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:42:25,794 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-08 15:42:25,795 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 40 treesize of output 28 [2024-09-08 15:42:26,219 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 5 proven. 36 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-09-08 15:42:26,220 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-09-08 15:42:26,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2036301499] [2024-09-08 15:42:26,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2036301499] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:42:26,220 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-08 15:42:26,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-09-08 15:42:26,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178296544] [2024-09-08 15:42:26,221 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-08 15:42:26,221 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-08 15:42:26,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-09-08 15:42:26,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-08 15:42:26,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-09-08 15:42:26,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:42:26,222 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:42:26,223 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.416666666666667) internal successors, (77), 11 states have internal predecessors, (77), 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 15:42:26,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:42:26,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-08 15:42:26,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:42:26,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:42:26,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:42:26,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:42:29,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:42:29,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 15:42:29,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:42:29,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:42:29,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:42:29,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-08 15:42:29,063 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 (14)] Forceful destruction successful, exit code 0 [2024-09-08 15:42:29,255 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 15:42:29,256 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-08 15:42:29,256 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:42:29,256 INFO L85 PathProgramCache]: Analyzing trace with hash 213561807, now seen corresponding path program 2 times [2024-09-08 15:42:29,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-09-08 15:42:29,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [510748061] [2024-09-08 15:42:29,257 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-08 15:42:29,257 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 15:42:29,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-09-08 15:42:29,258 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 15:42:29,259 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 15:42:29,468 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-08 15:42:29,468 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 15:42:29,479 INFO L262 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-08 15:42:29,481 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:42:29,838 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2024-09-08 15:42:29,838 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:42:38,274 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-08 15:42:38,275 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 75 treesize of output 76 [2024-09-08 15:42:38,549 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2024-09-08 15:42:38,549 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-09-08 15:42:38,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [510748061] [2024-09-08 15:42:38,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [510748061] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:42:38,550 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-08 15:42:38,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2024-09-08 15:42:38,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547960062] [2024-09-08 15:42:38,550 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-08 15:42:38,550 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-08 15:42:38,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-09-08 15:42:38,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-08 15:42:38,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=192, Unknown=4, NotChecked=0, Total=240 [2024-09-08 15:42:38,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:42:38,551 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:42:38,552 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.5) internal successors, (88), 15 states have internal predecessors, (88), 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 15:42:38,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:42:38,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-08 15:42:38,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:42:38,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:42:38,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:42:38,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-09-08 15:42:38,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:42:40,851 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:42:42,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:42:52,948 WARN L293 SmtUtils]: Spent 6.03s on a formula simplification. DAG size of input: 37 DAG size of output: 37 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-09-08 15:42:54,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:42:56,953 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:42:58,970 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:43:00,977 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:43:03,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:43:05,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:43:07,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:43:09,038 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:43:11,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:43:13,050 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:43:15,056 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:43:17,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:43:19,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:43:21,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:43:23,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:43:25,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:43:27,113 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:43:29,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:43:31,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:43:33,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:43:43,776 WARN L293 SmtUtils]: Spent 6.04s on a formula simplification. DAG size of input: 39 DAG size of output: 39 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-09-08 15:43:45,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:43:47,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:43:49,803 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:43:51,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:43:53,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:43:55,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:43:57,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:43:59,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:44:01,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:44:03,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:44:05,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:44:07,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:44:09,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:44:11,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:44:13,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:44:15,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:44:17,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:44:19,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:44:24,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:44:24,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 15:44:24,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:44:24,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:44:24,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:44:24,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-08 15:44:24,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-08 15:44:24,263 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 (15)] Ended with exit code 0 [2024-09-08 15:44:24,456 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 15:44:24,456 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-08 15:44:24,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:44:24,457 INFO L85 PathProgramCache]: Analyzing trace with hash 158003904, now seen corresponding path program 3 times [2024-09-08 15:44:24,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-09-08 15:44:24,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1736141371] [2024-09-08 15:44:24,457 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-08 15:44:24,457 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 15:44:24,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-09-08 15:44:24,459 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 15:44:24,460 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 15:44:24,578 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-09-08 15:44:24,578 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 15:44:24,581 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-08 15:44:24,583 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:44:24,905 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 69 proven. 1 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2024-09-08 15:44:24,905 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:44:25,588 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 21 proven. 49 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2024-09-08 15:44:25,589 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-09-08 15:44:25,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1736141371] [2024-09-08 15:44:25,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1736141371] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:44:25,589 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-08 15:44:25,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-09-08 15:44:25,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227815089] [2024-09-08 15:44:25,590 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-08 15:44:25,590 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-08 15:44:25,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-09-08 15:44:25,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-08 15:44:25,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-09-08 15:44:25,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:44:25,591 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:44:25,591 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 9 states have internal predecessors, (77), 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 15:44:25,591 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:44:25,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-08 15:44:25,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:44:25,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:44:25,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:44:25,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-09-08 15:44:25,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-09-08 15:44:25,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:44:26,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:44:26,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 15:44:26,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:44:26,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:44:26,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:44:26,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-08 15:44:26,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-08 15:44:26,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:44:26,246 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 (16)] Forceful destruction successful, exit code 0 [2024-09-08 15:44:26,441 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 15:44:26,441 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-08 15:44:26,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:44:26,442 INFO L85 PathProgramCache]: Analyzing trace with hash -2091802059, now seen corresponding path program 4 times [2024-09-08 15:44:26,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-09-08 15:44:26,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1042416612] [2024-09-08 15:44:26,442 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-08 15:44:26,443 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 15:44:26,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-09-08 15:44:26,444 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 15:44:26,445 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 15:44:26,608 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-08 15:44:26,608 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 15:44:26,614 INFO L262 TraceCheckSpWp]: Trace formula consists of 616 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-08 15:44:26,616 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:44:26,678 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 85 proven. 6 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-09-08 15:44:26,678 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:44:26,722 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 87 proven. 4 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-09-08 15:44:26,722 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-09-08 15:44:26,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1042416612] [2024-09-08 15:44:26,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1042416612] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:44:26,722 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-08 15:44:26,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2024-09-08 15:44:26,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611738759] [2024-09-08 15:44:26,723 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-08 15:44:26,723 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-08 15:44:26,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-09-08 15:44:26,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-08 15:44:26,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-09-08 15:44:26,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:44:26,726 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:44:26,726 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 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 15:44:26,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:44:26,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-08 15:44:26,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:44:26,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:44:26,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:44:26,727 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-09-08 15:44:26,727 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-09-08 15:44:26,727 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:44:26,727 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:44:28,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:44:28,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 15:44:28,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:44:28,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:44:28,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:44:28,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-08 15:44:28,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-08 15:44:28,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:44:28,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-08 15:44:28,329 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 15:44:28,521 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 15:44:28,522 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-08 15:44:28,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:44:28,522 INFO L85 PathProgramCache]: Analyzing trace with hash -22483792, now seen corresponding path program 5 times [2024-09-08 15:44:28,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-09-08 15:44:28,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1513216047] [2024-09-08 15:44:28,523 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-08 15:44:28,523 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 15:44:28,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-09-08 15:44:28,524 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 15:44:28,525 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 15:44:28,672 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2024-09-08 15:44:28,672 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 15:44:28,677 INFO L262 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-08 15:44:28,678 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:44:28,728 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 59 proven. 3 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-09-08 15:44:28,728 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:44:28,756 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 61 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-09-08 15:44:28,756 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-09-08 15:44:28,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1513216047] [2024-09-08 15:44:28,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1513216047] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:44:28,757 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-08 15:44:28,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2024-09-08 15:44:28,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211737942] [2024-09-08 15:44:28,757 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-08 15:44:28,757 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-08 15:44:28,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-09-08 15:44:28,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-08 15:44:28,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-08 15:44:28,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:44:28,758 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:44:28,758 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 15:44:28,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:44:28,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-08 15:44:28,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:44:28,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:44:28,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:44:28,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-09-08 15:44:28,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-09-08 15:44:28,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:44:28,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-09-08 15:44:28,760 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:44:30,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:44:30,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 15:44:30,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:44:30,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:44:30,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:44:30,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-08 15:44:30,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-08 15:44:30,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:44:30,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-08 15:44:30,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-08 15:44:30,123 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 15:44:30,317 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 15:44:30,318 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-08 15:44:30,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:44:30,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1151385519, now seen corresponding path program 6 times [2024-09-08 15:44:30,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-09-08 15:44:30,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1722307675] [2024-09-08 15:44:30,319 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-08 15:44:30,319 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 15:44:30,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-09-08 15:44:30,320 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 15:44:30,321 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 15:44:30,439 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2024-09-08 15:44:30,439 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 15:44:30,443 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-08 15:44:30,444 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:44:30,503 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-09-08 15:44:30,503 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-08 15:44:30,503 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-09-08 15:44:30,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1722307675] [2024-09-08 15:44:30,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1722307675] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 15:44:30,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 15:44:30,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-08 15:44:30,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872476559] [2024-09-08 15:44:30,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 15:44:30,504 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-08 15:44:30,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-09-08 15:44:30,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-08 15:44:30,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-08 15:44:30,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:44:30,505 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:44:30,505 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 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 15:44:30,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:44:30,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-08 15:44:30,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:44:30,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:44:30,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:44:30,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-09-08 15:44:30,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-09-08 15:44:30,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:44:30,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-09-08 15:44:30,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-09-08 15:44:30,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:44:31,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:44:31,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 15:44:31,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:44:31,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:44:31,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:44:31,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-08 15:44:31,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-08 15:44:31,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:44:31,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-08 15:44:31,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-08 15:44:31,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:44:31,571 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 15:44:31,766 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 15:44:31,766 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-08 15:44:31,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:44:31,767 INFO L85 PathProgramCache]: Analyzing trace with hash -48670407, now seen corresponding path program 7 times [2024-09-08 15:44:31,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-09-08 15:44:31,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [135312876] [2024-09-08 15:44:31,767 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-08 15:44:31,767 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 15:44:31,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-09-08 15:44:31,769 INFO L229 MonitoredProcess]: Starting monitored process 20 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 15:44:31,770 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 (20)] Waiting until timeout for monitored process [2024-09-08 15:44:31,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 15:44:31,876 INFO L262 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-08 15:44:31,877 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:44:32,447 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-08 15:44:32,447 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 15:44:51,215 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-08 15:44:51,216 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 108 treesize of output 150 [2024-09-08 15:44:51,717 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 3 proven. 25 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-08 15:44:51,717 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-09-08 15:44:51,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [135312876] [2024-09-08 15:44:51,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [135312876] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 15:44:51,718 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-08 15:44:51,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2024-09-08 15:44:51,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430328031] [2024-09-08 15:44:51,718 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-08 15:44:51,718 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-09-08 15:44:51,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-09-08 15:44:51,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-09-08 15:44:51,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=312, Unknown=9, NotChecked=0, Total=380 [2024-09-08 15:44:51,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:44:51,719 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 15:44:51,719 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 4.35) internal successors, (87), 19 states have internal predecessors, (87), 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 15:44:51,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:44:51,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-08 15:44:51,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:44:51,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:44:51,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:44:51,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-09-08 15:44:51,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-09-08 15:44:51,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:44:51,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-09-08 15:44:51,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-09-08 15:44:51,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:44:51,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 15:44:54,103 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:45:08,323 WARN L293 SmtUtils]: Spent 12.15s on a formula simplification. DAG size of input: 47 DAG size of output: 46 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-09-08 15:45:10,327 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:45:12,354 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:45:14,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:45:16,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:45:18,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:45:20,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:45:22,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:45:24,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:45:26,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:45:28,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:45:31,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:45:45,196 WARN L293 SmtUtils]: Spent 12.08s on a formula simplification. DAG size of input: 49 DAG size of output: 48 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-09-08 15:45:47,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:45:49,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:45:51,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:45:53,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:45:55,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:45:57,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:45:59,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:46:01,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:46:03,389 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:46:05,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:46:07,907 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:46:09,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:46:11,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:46:28,099 WARN L293 SmtUtils]: Spent 6.06s on a formula simplification. DAG size of input: 43 DAG size of output: 43 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-09-08 15:46:30,103 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:46:32,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:46:34,110 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:46:36,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:46:38,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:46:40,156 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:46:42,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:46:44,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:46:46,215 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:46:48,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:46:50,262 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:46:52,265 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:46:54,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:46:56,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:46:58,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:47:00,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:47:02,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:47:04,306 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:47:06,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:47:08,315 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:47:10,318 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:47:12,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:47:14,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:47:16,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:47:18,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:47:20,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:47:22,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:47:25,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:47:35,958 WARN L293 SmtUtils]: Spent 8.82s on a formula simplification. DAG size of input: 55 DAG size of output: 52 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-09-08 15:47:37,962 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:47:39,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:47:42,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:47:44,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:47:46,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:47:48,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:47:50,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:47:52,168 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:47:54,207 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:47:56,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-09-08 15:48:05,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 15:48:05,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 15:48:05,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 15:48:05,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:48:05,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 15:48:05,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-08 15:48:05,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-08 15:48:05,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 15:48:05,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-08 15:48:05,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-08 15:48:05,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-08 15:48:05,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-08 15:48:05,780 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 (20)] Forceful destruction successful, exit code 0 [2024-09-08 15:48:05,975 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /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 15:48:05,975 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-08 15:48:05,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 15:48:05,976 INFO L85 PathProgramCache]: Analyzing trace with hash 2052019400, now seen corresponding path program 8 times [2024-09-08 15:48:05,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-09-08 15:48:05,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1493312141] [2024-09-08 15:48:05,976 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-08 15:48:05,977 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 15:48:05,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-09-08 15:48:05,978 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 15:48:05,979 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 15:48:06,142 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-08 15:48:06,142 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 15:48:06,150 INFO L262 TraceCheckSpWp]: Trace formula consists of 585 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-09-08 15:48:06,152 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 15:48:12,252 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 25 proven. 151 refuted. 7 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-08 15:48:12,253 INFO L327 TraceCheckSpWp]: Computing backward predicates... Killed by 15