./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-two-queue.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-two-queue.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e94c40da 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-two-queue.wvr.c ./goblint.2024-09-02_08-21-23.files/mutex-meet-local/popl20-two-queue.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-dev-e94c40d-m [2024-09-23 18:55:16,404 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-23 18:55:16,478 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-09-23 18:55:16,482 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-23 18:55:16,482 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-23 18:55:16,520 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-23 18:55:16,520 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-23 18:55:16,521 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-23 18:55:16,522 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-23 18:55:16,523 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-23 18:55:16,524 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-23 18:55:16,525 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-23 18:55:16,525 INFO L153 SettingsManager]: * Use SBE=true [2024-09-23 18:55:16,527 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-23 18:55:16,527 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-23 18:55:16,528 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-23 18:55:16,528 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-23 18:55:16,528 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-23 18:55:16,528 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-23 18:55:16,528 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-23 18:55:16,529 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-23 18:55:16,536 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-23 18:55:16,537 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-23 18:55:16,537 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-23 18:55:16,537 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-23 18:55:16,537 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-23 18:55:16,538 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-23 18:55:16,538 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-23 18:55:16,538 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-23 18:55:16,538 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-23 18:55:16,538 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-23 18:55:16,538 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-23 18:55:16,539 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-23 18:55:16,539 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-23 18:55:16,539 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-23 18:55:16,539 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-09-23 18:55:16,539 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-23 18:55:16,540 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-23 18:55:16,540 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-09-23 18:55:16,540 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-09-23 18:55:16,542 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-09-23 18:55:16,543 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-09-23 18:55:16,816 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-23 18:55:16,840 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-23 18:55:16,845 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-23 18:55:16,846 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-23 18:55:16,848 INFO L274 PluginConnector]: CDTParser initialized [2024-09-23 18:55:16,849 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-two-queue.wvr.c [2024-09-23 18:55:18,234 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-23 18:55:18,405 INFO L384 CDTParser]: Found 1 translation units. [2024-09-23 18:55:18,406 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-two-queue.wvr.c [2024-09-23 18:55:18,413 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/cfcc646b8/a053ea1a49d34377a298dbb44bc6e27e/FLAG86ba61e0d [2024-09-23 18:55:18,426 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/cfcc646b8/a053ea1a49d34377a298dbb44bc6e27e [2024-09-23 18:55:18,428 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-23 18:55:18,429 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-23 18:55:18,430 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-09-02_08-21-23.files/mutex-meet-local/popl20-two-queue.wvr.yml/witness.yml [2024-09-23 18:55:18,612 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-23 18:55:18,614 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-23 18:55:18,615 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-23 18:55:18,615 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-23 18:55:18,620 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-23 18:55:18,620 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.09 06:55:18" (1/2) ... [2024-09-23 18:55:18,621 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c1dc4f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 06:55:18, skipping insertion in model container [2024-09-23 18:55:18,621 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.09 06:55:18" (1/2) ... [2024-09-23 18:55:18,623 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7dba5c1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 06:55:18, skipping insertion in model container [2024-09-23 18:55:18,623 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 23.09 06:55:18" (2/2) ... [2024-09-23 18:55:18,624 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c1dc4f3 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.09 06:55:18, skipping insertion in model container [2024-09-23 18:55:18,624 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 23.09 06:55:18" (2/2) ... [2024-09-23 18:55:18,678 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-23 18:55:18,678 INFO L1541 ArrayList]: Location invariant before [L54-L54] ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((2147483648LL + (long long )n1) + (long long )q1_front >= 0LL) && ((2147483648LL + (long long )n1) + (long long )q1_back >= 0LL)) && ((2147483648LL + (long long )n1) + (long long )q2_front >= 0LL)) && ((2147483648LL + (long long )n1) + (long long )q2_back >= 0LL)) && ((2147483648LL + (long long )n2) + (long long )q1_front >= 0LL)) && ((2147483648LL + (long long )n2) + (long long )q1_back >= 0LL)) && ((2147483648LL + (long long )n2) + (long long )q2_front >= 0LL)) && ((2147483648LL + (long long )n2) + (long long )q2_back >= 0LL)) && ((2147483648LL + (long long )N) + (long long )n1 >= 0LL)) && ((2147483648LL + (long long )N) + (long long )n2 >= 0LL)) && ((1073741823LL - (long long )n1) + (long long )n2 >= 0LL)) && ((2147483647LL - (long long )N) + (long long )n1 >= 0LL)) && ((2147483647LL - (long long )N) + (long long )n2 >= 0LL)) && ((3221225471LL - (long long )n1) + (long long )q1_front >= 0LL)) && ((3221225471LL - (long long )n1) + (long long )q1_back >= 0LL)) && ((3221225471LL - (long long )n1) + (long long )q2_front >= 0LL)) && ((3221225471LL - (long long )n1) + (long long )q2_back >= 0LL)) && ((3221225471LL - (long long )n2) + (long long )q1_front >= 0LL)) && ((3221225471LL - (long long )n2) + (long long )q1_back >= 0LL)) && ((3221225471LL - (long long )n2) + (long long )q2_front >= 0LL)) && ((3221225471LL - (long long )n2) + (long long )q2_back >= 0LL)) && ((4294967295LL - (long long )q1_front) + (long long )q2_front >= 0LL)) && ((4294967295LL - (long long )q1_front) + (long long )q2_back >= 0LL)) && ((4294967295LL - (long long )q1_back) + (long long )q1_front >= 0LL)) && ((4294967295LL - (long long )q1_back) + (long long )q2_front >= 0LL)) && ((4294967295LL - (long long )q1_back) + (long long )q2_back >= 0LL)) && ((4294967295LL - (long long )q2_back) + (long long )q2_front >= 0LL)) && ((long long )n1 + (long long )n2 >= 0LL)) && ((1073741823LL + (long long )n1) - (long long )n2 >= 0LL)) && ((2147483647LL + (long long )n1) - (long long )q1_front >= 0LL)) && ((2147483647LL + (long long )n1) - (long long )q1_back >= 0LL)) && ((2147483647LL + (long long )n1) - (long long )q2_front >= 0LL)) && ((2147483647LL + (long long )n1) - (long long )q2_back >= 0LL)) && ((2147483647LL + (long long )n2) - (long long )q1_front >= 0LL)) && ((2147483647LL + (long long )n2) - (long long )q1_back >= 0LL)) && ((2147483647LL + (long long )n2) - (long long )q2_front >= 0LL)) && ((2147483647LL + (long long )n2) - (long long )q2_back >= 0LL)) && ((3221225471LL + (long long )N) - (long long )n1 >= 0LL)) && ((3221225471LL + (long long )N) - (long long )n2 >= 0LL)) && ((4294967295LL + (long long )q1_front) - (long long )q2_front >= 0LL)) && ((4294967295LL + (long long )q1_front) - (long long )q2_back >= 0LL)) && ((4294967295LL + (long long )q1_back) - (long long )q1_front >= 0LL)) && ((4294967295LL + (long long )q1_back) - (long long )q2_front >= 0LL)) && ((4294967295LL + (long long )q1_back) - (long long )q2_back >= 0LL)) && ((4294967295LL + (long long )q2_back) - (long long )q2_front >= 0LL)) && ((4294967295LL + (long long )N) - (long long )q1_front >= 0LL)) && ((4294967295LL + (long long )N) - (long long )q1_back >= 0LL)) && ((4294967295LL + (long long )N) - (long long )q2_front >= 0LL)) && ((4294967295LL + (long long )N) - (long long )q2_back >= 0LL)) && ((2147483646LL - (long long )n1) - (long long )n2 >= 0LL)) && ((3221225470LL - (long long )n1) - (long long )q1_front >= 0LL)) && ((3221225470LL - (long long )n1) - (long long )q1_back >= 0LL)) && ((3221225470LL - (long long )n1) - (long long )q2_front >= 0LL)) && ((3221225470LL - (long long )n1) - (long long )q2_back >= 0LL)) && ((3221225470LL - (long long )n2) - (long long )q1_front >= 0LL)) && ((3221225470LL - (long long )n2) - (long long )q1_back >= 0LL)) && ((3221225470LL - (long long )n2) - (long long )q2_front >= 0LL)) && ((3221225470LL - (long long )n2) - (long long )q2_back >= 0LL)) && ((3221225470LL - (long long )N) - (long long )n1 >= 0LL)) && ((3221225470LL - (long long )N) - (long long )n2 >= 0LL)) && ((4294967294LL - (long long )q1_front) - (long long )q2_front >= 0LL)) && ((4294967294LL - (long long )q1_front) - (long long )q2_back >= 0LL)) && ((4294967294LL - (long long )q1_back) - (long long )q1_front >= 0LL)) && ((4294967294LL - (long long )q1_back) - (long long )q2_front >= 0LL)) && ((4294967294LL - (long long )q1_back) - (long long )q2_back >= 0LL)) && ((4294967294LL - (long long )q2_back) - (long long )q2_front >= 0LL)) && ((4294967294LL - (long long )N) - (long long )q1_front >= 0LL)) && ((4294967294LL - (long long )N) - (long long )q1_back >= 0LL)) && ((4294967294LL - (long long )N) - (long long )q2_front >= 0LL)) && ((4294967294LL - (long long )N) - (long long )q2_back >= 0LL) [2024-09-23 18:55:18,678 INFO L1541 ArrayList]: Location invariant before [L67-L67] ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((2147483648LL + (long long )n1) + (long long )q1_front >= 0LL) && ((2147483648LL + (long long )n1) + (long long )q1_back >= 0LL)) && ((2147483648LL + (long long )n1) + (long long )q2_front >= 0LL)) && ((2147483648LL + (long long )n1) + (long long )q2_back >= 0LL)) && ((2147483648LL + (long long )n2) + (long long )q1_front >= 0LL)) && ((2147483648LL + (long long )n2) + (long long )q1_back >= 0LL)) && ((2147483648LL + (long long )n2) + (long long )q2_front >= 0LL)) && ((2147483648LL + (long long )n2) + (long long )q2_back >= 0LL)) && ((2147483648LL + (long long )N) + (long long )n1 >= 0LL)) && ((2147483648LL + (long long )N) + (long long )n2 >= 0LL)) && ((1073741823LL - (long long )n1) + (long long )n2 >= 0LL)) && ((2147483647LL - (long long )N) + (long long )n1 >= 0LL)) && ((2147483647LL - (long long )N) + (long long )n2 >= 0LL)) && ((3221225471LL - (long long )n1) + (long long )q1_front >= 0LL)) && ((3221225471LL - (long long )n1) + (long long )q1_back >= 0LL)) && ((3221225471LL - (long long )n1) + (long long )q2_front >= 0LL)) && ((3221225471LL - (long long )n1) + (long long )q2_back >= 0LL)) && ((3221225471LL - (long long )n2) + (long long )q1_front >= 0LL)) && ((3221225471LL - (long long )n2) + (long long )q1_back >= 0LL)) && ((3221225471LL - (long long )n2) + (long long )q2_front >= 0LL)) && ((3221225471LL - (long long )n2) + (long long )q2_back >= 0LL)) && ((4294967295LL - (long long )q1_front) + (long long )q2_front >= 0LL)) && ((4294967295LL - (long long )q1_front) + (long long )q2_back >= 0LL)) && ((4294967295LL - (long long )q1_back) + (long long )q1_front >= 0LL)) && ((4294967295LL - (long long )q1_back) + (long long )q2_front >= 0LL)) && ((4294967295LL - (long long )q1_back) + (long long )q2_back >= 0LL)) && ((4294967295LL - (long long )q2_back) + (long long )q2_front >= 0LL)) && ((long long )n1 + (long long )n2 >= 0LL)) && ((1073741823LL + (long long )n1) - (long long )n2 >= 0LL)) && ((2147483647LL + (long long )n1) - (long long )q1_front >= 0LL)) && ((2147483647LL + (long long )n1) - (long long )q1_back >= 0LL)) && ((2147483647LL + (long long )n1) - (long long )q2_front >= 0LL)) && ((2147483647LL + (long long )n1) - (long long )q2_back >= 0LL)) && ((2147483647LL + (long long )n2) - (long long )q1_front >= 0LL)) && ((2147483647LL + (long long )n2) - (long long )q1_back >= 0LL)) && ((2147483647LL + (long long )n2) - (long long )q2_front >= 0LL)) && ((2147483647LL + (long long )n2) - (long long )q2_back >= 0LL)) && ((3221225471LL + (long long )N) - (long long )n1 >= 0LL)) && ((3221225471LL + (long long )N) - (long long )n2 >= 0LL)) && ((4294967295LL + (long long )q1_front) - (long long )q2_front >= 0LL)) && ((4294967295LL + (long long )q1_front) - (long long )q2_back >= 0LL)) && ((4294967295LL + (long long )q1_back) - (long long )q1_front >= 0LL)) && ((4294967295LL + (long long )q1_back) - (long long )q2_front >= 0LL)) && ((4294967295LL + (long long )q1_back) - (long long )q2_back >= 0LL)) && ((4294967295LL + (long long )q2_back) - (long long )q2_front >= 0LL)) && ((4294967295LL + (long long )N) - (long long )q1_front >= 0LL)) && ((4294967295LL + (long long )N) - (long long )q1_back >= 0LL)) && ((4294967295LL + (long long )N) - (long long )q2_front >= 0LL)) && ((4294967295LL + (long long )N) - (long long )q2_back >= 0LL)) && ((2147483646LL - (long long )n1) - (long long )n2 >= 0LL)) && ((3221225470LL - (long long )n1) - (long long )q1_front >= 0LL)) && ((3221225470LL - (long long )n1) - (long long )q1_back >= 0LL)) && ((3221225470LL - (long long )n1) - (long long )q2_front >= 0LL)) && ((3221225470LL - (long long )n1) - (long long )q2_back >= 0LL)) && ((3221225470LL - (long long )n2) - (long long )q1_front >= 0LL)) && ((3221225470LL - (long long )n2) - (long long )q1_back >= 0LL)) && ((3221225470LL - (long long )n2) - (long long )q2_front >= 0LL)) && ((3221225470LL - (long long )n2) - (long long )q2_back >= 0LL)) && ((3221225470LL - (long long )N) - (long long )n1 >= 0LL)) && ((3221225470LL - (long long )N) - (long long )n2 >= 0LL)) && ((4294967294LL - (long long )q1_front) - (long long )q2_front >= 0LL)) && ((4294967294LL - (long long )q1_front) - (long long )q2_back >= 0LL)) && ((4294967294LL - (long long )q1_back) - (long long )q1_front >= 0LL)) && ((4294967294LL - (long long )q1_back) - (long long )q2_front >= 0LL)) && ((4294967294LL - (long long )q1_back) - (long long )q2_back >= 0LL)) && ((4294967294LL - (long long )q2_back) - (long long )q2_front >= 0LL)) && ((4294967294LL - (long long )N) - (long long )q1_front >= 0LL)) && ((4294967294LL - (long long )N) - (long long )q1_back >= 0LL)) && ((4294967294LL - (long long )N) - (long long )q2_front >= 0LL)) && ((4294967294LL - (long long )N) - (long long )q2_back >= 0LL) [2024-09-23 18:55:18,679 INFO L1541 ArrayList]: Location invariant before [L72-L72] ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((2147483648LL + (long long )n1) + (long long )q1_front >= 0LL) && ((2147483648LL + (long long )n1) + (long long )q1_back >= 0LL)) && ((2147483648LL + (long long )n1) + (long long )q2_front >= 0LL)) && ((2147483648LL + (long long )n1) + (long long )q2_back >= 0LL)) && ((2147483648LL + (long long )n2) + (long long )q1_front >= 0LL)) && ((2147483648LL + (long long )n2) + (long long )q1_back >= 0LL)) && ((2147483648LL + (long long )n2) + (long long )q2_front >= 0LL)) && ((2147483648LL + (long long )n2) + (long long )q2_back >= 0LL)) && ((2147483648LL + (long long )N) + (long long )n1 >= 0LL)) && ((2147483648LL + (long long )N) + (long long )n2 >= 0LL)) && ((1073741823LL - (long long )n1) + (long long )n2 >= 0LL)) && ((2147483647LL - (long long )N) + (long long )n1 >= 0LL)) && ((2147483647LL - (long long )N) + (long long )n2 >= 0LL)) && ((3221225471LL - (long long )n1) + (long long )q1_front >= 0LL)) && ((3221225471LL - (long long )n1) + (long long )q1_back >= 0LL)) && ((3221225471LL - (long long )n1) + (long long )q2_front >= 0LL)) && ((3221225471LL - (long long )n1) + (long long )q2_back >= 0LL)) && ((3221225471LL - (long long )n2) + (long long )q1_front >= 0LL)) && ((3221225471LL - (long long )n2) + (long long )q1_back >= 0LL)) && ((3221225471LL - (long long )n2) + (long long )q2_front >= 0LL)) && ((3221225471LL - (long long )n2) + (long long )q2_back >= 0LL)) && ((4294967295LL - (long long )q1_front) + (long long )q2_front >= 0LL)) && ((4294967295LL - (long long )q1_front) + (long long )q2_back >= 0LL)) && ((4294967295LL - (long long )q1_back) + (long long )q1_front >= 0LL)) && ((4294967295LL - (long long )q1_back) + (long long )q2_front >= 0LL)) && ((4294967295LL - (long long )q1_back) + (long long )q2_back >= 0LL)) && ((4294967295LL - (long long )q2_back) + (long long )q2_front >= 0LL)) && ((long long )n1 + (long long )n2 >= 0LL)) && ((1073741823LL + (long long )n1) - (long long )n2 >= 0LL)) && ((2147483647LL + (long long )n1) - (long long )q1_front >= 0LL)) && ((2147483647LL + (long long )n1) - (long long )q1_back >= 0LL)) && ((2147483647LL + (long long )n1) - (long long )q2_front >= 0LL)) && ((2147483647LL + (long long )n1) - (long long )q2_back >= 0LL)) && ((2147483647LL + (long long )n2) - (long long )q1_front >= 0LL)) && ((2147483647LL + (long long )n2) - (long long )q1_back >= 0LL)) && ((2147483647LL + (long long )n2) - (long long )q2_front >= 0LL)) && ((2147483647LL + (long long )n2) - (long long )q2_back >= 0LL)) && ((3221225471LL + (long long )N) - (long long )n1 >= 0LL)) && ((3221225471LL + (long long )N) - (long long )n2 >= 0LL)) && ((4294967295LL + (long long )q1_front) - (long long )q2_front >= 0LL)) && ((4294967295LL + (long long )q1_front) - (long long )q2_back >= 0LL)) && ((4294967295LL + (long long )q1_back) - (long long )q1_front >= 0LL)) && ((4294967295LL + (long long )q1_back) - (long long )q2_front >= 0LL)) && ((4294967295LL + (long long )q1_back) - (long long )q2_back >= 0LL)) && ((4294967295LL + (long long )q2_back) - (long long )q2_front >= 0LL)) && ((4294967295LL + (long long )N) - (long long )q1_front >= 0LL)) && ((4294967295LL + (long long )N) - (long long )q1_back >= 0LL)) && ((4294967295LL + (long long )N) - (long long )q2_front >= 0LL)) && ((4294967295LL + (long long )N) - (long long )q2_back >= 0LL)) && ((2147483646LL - (long long )n1) - (long long )n2 >= 0LL)) && ((3221225470LL - (long long )n1) - (long long )q1_front >= 0LL)) && ((3221225470LL - (long long )n1) - (long long )q1_back >= 0LL)) && ((3221225470LL - (long long )n1) - (long long )q2_front >= 0LL)) && ((3221225470LL - (long long )n1) - (long long )q2_back >= 0LL)) && ((3221225470LL - (long long )n2) - (long long )q1_front >= 0LL)) && ((3221225470LL - (long long )n2) - (long long )q1_back >= 0LL)) && ((3221225470LL - (long long )n2) - (long long )q2_front >= 0LL)) && ((3221225470LL - (long long )n2) - (long long )q2_back >= 0LL)) && ((3221225470LL - (long long )N) - (long long )n1 >= 0LL)) && ((3221225470LL - (long long )N) - (long long )n2 >= 0LL)) && ((4294967294LL - (long long )q1_front) - (long long )q2_front >= 0LL)) && ((4294967294LL - (long long )q1_front) - (long long )q2_back >= 0LL)) && ((4294967294LL - (long long )q1_back) - (long long )q1_front >= 0LL)) && ((4294967294LL - (long long )q1_back) - (long long )q2_front >= 0LL)) && ((4294967294LL - (long long )q1_back) - (long long )q2_back >= 0LL)) && ((4294967294LL - (long long )q2_back) - (long long )q2_front >= 0LL)) && ((4294967294LL - (long long )N) - (long long )q1_front >= 0LL)) && ((4294967294LL - (long long )N) - (long long )q1_back >= 0LL)) && ((4294967294LL - (long long )N) - (long long )q2_front >= 0LL)) && ((4294967294LL - (long long )N) - (long long )q2_back >= 0LL) [2024-09-23 18:55:18,679 INFO L1541 ArrayList]: Location invariant before [L49-L49] ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((2147483648LL + (long long )n1) + (long long )q1_front >= 0LL) && ((2147483648LL + (long long )n1) + (long long )q1_back >= 0LL)) && ((2147483648LL + (long long )n1) + (long long )q2_front >= 0LL)) && ((2147483648LL + (long long )n1) + (long long )q2_back >= 0LL)) && ((2147483648LL + (long long )n2) + (long long )q1_front >= 0LL)) && ((2147483648LL + (long long )n2) + (long long )q1_back >= 0LL)) && ((2147483648LL + (long long )n2) + (long long )q2_front >= 0LL)) && ((2147483648LL + (long long )n2) + (long long )q2_back >= 0LL)) && ((2147483648LL + (long long )N) + (long long )n1 >= 0LL)) && ((2147483648LL + (long long )N) + (long long )n2 >= 0LL)) && ((1073741823LL - (long long )n1) + (long long )n2 >= 0LL)) && ((2147483647LL - (long long )N) + (long long )n1 >= 0LL)) && ((2147483647LL - (long long )N) + (long long )n2 >= 0LL)) && ((3221225471LL - (long long )n1) + (long long )q1_front >= 0LL)) && ((3221225471LL - (long long )n1) + (long long )q1_back >= 0LL)) && ((3221225471LL - (long long )n1) + (long long )q2_front >= 0LL)) && ((3221225471LL - (long long )n1) + (long long )q2_back >= 0LL)) && ((3221225471LL - (long long )n2) + (long long )q1_front >= 0LL)) && ((3221225471LL - (long long )n2) + (long long )q1_back >= 0LL)) && ((3221225471LL - (long long )n2) + (long long )q2_front >= 0LL)) && ((3221225471LL - (long long )n2) + (long long )q2_back >= 0LL)) && ((4294967295LL - (long long )q1_front) + (long long )q2_front >= 0LL)) && ((4294967295LL - (long long )q1_front) + (long long )q2_back >= 0LL)) && ((4294967295LL - (long long )q1_back) + (long long )q1_front >= 0LL)) && ((4294967295LL - (long long )q1_back) + (long long )q2_front >= 0LL)) && ((4294967295LL - (long long )q1_back) + (long long )q2_back >= 0LL)) && ((4294967295LL - (long long )q2_back) + (long long )q2_front >= 0LL)) && ((long long )n1 + (long long )n2 >= 0LL)) && ((1073741823LL + (long long )n1) - (long long )n2 >= 0LL)) && ((2147483647LL + (long long )n1) - (long long )q1_front >= 0LL)) && ((2147483647LL + (long long )n1) - (long long )q1_back >= 0LL)) && ((2147483647LL + (long long )n1) - (long long )q2_front >= 0LL)) && ((2147483647LL + (long long )n1) - (long long )q2_back >= 0LL)) && ((2147483647LL + (long long )n2) - (long long )q1_front >= 0LL)) && ((2147483647LL + (long long )n2) - (long long )q1_back >= 0LL)) && ((2147483647LL + (long long )n2) - (long long )q2_front >= 0LL)) && ((2147483647LL + (long long )n2) - (long long )q2_back >= 0LL)) && ((3221225471LL + (long long )N) - (long long )n1 >= 0LL)) && ((3221225471LL + (long long )N) - (long long )n2 >= 0LL)) && ((4294967295LL + (long long )q1_front) - (long long )q2_front >= 0LL)) && ((4294967295LL + (long long )q1_front) - (long long )q2_back >= 0LL)) && ((4294967295LL + (long long )q1_back) - (long long )q1_front >= 0LL)) && ((4294967295LL + (long long )q1_back) - (long long )q2_front >= 0LL)) && ((4294967295LL + (long long )q1_back) - (long long )q2_back >= 0LL)) && ((4294967295LL + (long long )q2_back) - (long long )q2_front >= 0LL)) && ((4294967295LL + (long long )N) - (long long )q1_front >= 0LL)) && ((4294967295LL + (long long )N) - (long long )q1_back >= 0LL)) && ((4294967295LL + (long long )N) - (long long )q2_front >= 0LL)) && ((4294967295LL + (long long )N) - (long long )q2_back >= 0LL)) && ((2147483646LL - (long long )n1) - (long long )n2 >= 0LL)) && ((3221225470LL - (long long )n1) - (long long )q1_front >= 0LL)) && ((3221225470LL - (long long )n1) - (long long )q1_back >= 0LL)) && ((3221225470LL - (long long )n1) - (long long )q2_front >= 0LL)) && ((3221225470LL - (long long )n1) - (long long )q2_back >= 0LL)) && ((3221225470LL - (long long )n2) - (long long )q1_front >= 0LL)) && ((3221225470LL - (long long )n2) - (long long )q1_back >= 0LL)) && ((3221225470LL - (long long )n2) - (long long )q2_front >= 0LL)) && ((3221225470LL - (long long )n2) - (long long )q2_back >= 0LL)) && ((3221225470LL - (long long )N) - (long long )n1 >= 0LL)) && ((3221225470LL - (long long )N) - (long long )n2 >= 0LL)) && ((4294967294LL - (long long )q1_front) - (long long )q2_front >= 0LL)) && ((4294967294LL - (long long )q1_front) - (long long )q2_back >= 0LL)) && ((4294967294LL - (long long )q1_back) - (long long )q1_front >= 0LL)) && ((4294967294LL - (long long )q1_back) - (long long )q2_front >= 0LL)) && ((4294967294LL - (long long )q1_back) - (long long )q2_back >= 0LL)) && ((4294967294LL - (long long )q2_back) - (long long )q2_front >= 0LL)) && ((4294967294LL - (long long )N) - (long long )q1_front >= 0LL)) && ((4294967294LL - (long long )N) - (long long )q1_back >= 0LL)) && ((4294967294LL - (long long )N) - (long long )q2_front >= 0LL)) && ((4294967294LL - (long long )N) - (long long )q2_back >= 0LL) [2024-09-23 18:55:18,699 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-23 18:55:18,895 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-two-queue.wvr.c[3013,3026] [2024-09-23 18:55:18,902 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-23 18:55:18,910 INFO L200 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-09-23 18:55:19,061 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-two-queue.wvr.c[3013,3026] [2024-09-23 18:55:19,064 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-23 18:55:19,079 INFO L204 MainTranslator]: Completed translation [2024-09-23 18:55:19,080 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.09 06:55:19 WrapperNode [2024-09-23 18:55:19,080 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-23 18:55:19,081 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-23 18:55:19,081 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-23 18:55:19,081 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-23 18:55:19,091 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 23.09 06:55:19" (1/1) ... [2024-09-23 18:55:19,108 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 23.09 06:55:19" (1/1) ... [2024-09-23 18:55:19,156 INFO L138 Inliner]: procedures = 23, calls = 33, calls flagged for inlining = 13, calls inlined = 15, statements flattened = 206 [2024-09-23 18:55:19,157 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-23 18:55:19,158 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-23 18:55:19,161 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-23 18:55:19,161 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-23 18:55:19,170 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.09 06:55:19" (1/1) ... [2024-09-23 18:55:19,170 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.09 06:55:19" (1/1) ... [2024-09-23 18:55:19,175 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.09 06:55:19" (1/1) ... [2024-09-23 18:55:19,178 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.09 06:55:19" (1/1) ... [2024-09-23 18:55:19,191 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.09 06:55:19" (1/1) ... [2024-09-23 18:55:19,195 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.09 06:55:19" (1/1) ... [2024-09-23 18:55:19,197 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.09 06:55:19" (1/1) ... [2024-09-23 18:55:19,203 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.09 06:55:19" (1/1) ... [2024-09-23 18:55:19,211 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-23 18:55:19,212 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-23 18:55:19,212 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-23 18:55:19,212 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-23 18:55:19,213 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.09 06:55:19" (1/1) ... [2024-09-23 18:55:19,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-23 18:55:19,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 18:55:19,259 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) [2024-09-23 18:55:19,272 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 [2024-09-23 18:55:19,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-23 18:55:19,354 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-09-23 18:55:19,354 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-09-23 18:55:19,354 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-09-23 18:55:19,354 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-09-23 18:55:19,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-23 18:55:19,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-23 18:55:19,355 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-09-23 18:55:19,356 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-09-23 18:55:19,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-09-23 18:55:19,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-23 18:55:19,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-23 18:55:19,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-23 18:55:19,357 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-09-23 18:55:19,464 INFO L242 CfgBuilder]: Building ICFG [2024-09-23 18:55:19,467 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-23 18:55:20,002 INFO L287 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-09-23 18:55:20,002 INFO L291 CfgBuilder]: Performing block encoding [2024-09-23 18:55:20,370 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-23 18:55:20,370 INFO L318 CfgBuilder]: Removed 4 assume(true) statements. [2024-09-23 18:55:20,372 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.09 06:55:20 BoogieIcfgContainer [2024-09-23 18:55:20,372 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-23 18:55:20,375 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-23 18:55:20,376 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-23 18:55:20,379 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-23 18:55:20,379 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.09 06:55:18" (1/4) ... [2024-09-23 18:55:20,380 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@795a7beb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.09 06:55:20, skipping insertion in model container [2024-09-23 18:55:20,380 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 23.09 06:55:18" (2/4) ... [2024-09-23 18:55:20,380 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@795a7beb and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 23.09 06:55:20, skipping insertion in model container [2024-09-23 18:55:20,381 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.09 06:55:19" (3/4) ... [2024-09-23 18:55:20,381 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@795a7beb and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 23.09 06:55:20, skipping insertion in model container [2024-09-23 18:55:20,381 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.09 06:55:20" (4/4) ... [2024-09-23 18:55:20,383 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-two-queue.wvr.c [2024-09-23 18:55:20,401 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-23 18:55:20,402 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2024-09-23 18:55:20,402 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-09-23 18:55:20,484 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-09-23 18:55:20,529 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-23 18:55:20,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-23 18:55:20,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 18:55:20,535 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) [2024-09-23 18:55:20,537 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 [2024-09-23 18:55:20,572 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-23 18:55:20,584 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread2Thread1of1ForFork1 ======== [2024-09-23 18:55:20,592 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;@231336a1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-23 18:55:20,593 INFO L337 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-09-23 18:55:20,914 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-23 18:55:20,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 18:55:20,920 INFO L85 PathProgramCache]: Analyzing trace with hash -89006589, now seen corresponding path program 1 times [2024-09-23 18:55:20,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 18:55:20,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317179043] [2024-09-23 18:55:20,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 18:55:20,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 18:55:21,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 18:55:23,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 18:55:23,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 18:55:23,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317179043] [2024-09-23 18:55:23,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317179043] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-23 18:55:23,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-23 18:55:23,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-23 18:55:23,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946735975] [2024-09-23 18:55:23,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-23 18:55:23,435 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-23 18:55:23,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 18:55:23,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-23 18:55:23,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-23 18:55:23,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 18:55:23,461 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 18:55:23,462 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-23 18:55:23,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 18:55:23,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:55:23,593 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-23 18:55:23,593 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-23 18:55:23,595 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 18:55:23,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1877266628, now seen corresponding path program 1 times [2024-09-23 18:55:23,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 18:55:23,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917181549] [2024-09-23 18:55:23,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 18:55:23,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 18:55:23,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 18:55:25,266 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 18:55:25,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 18:55:25,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917181549] [2024-09-23 18:55:25,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917181549] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-23 18:55:25,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1792239034] [2024-09-23 18:55:25,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 18:55:25,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-23 18:55:25,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 18:55:25,284 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) [2024-09-23 18:55:25,286 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-23 18:55:25,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 18:55:25,382 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-09-23 18:55:25,390 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-23 18:55:26,235 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 18:55:26,235 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-23 18:55:31,076 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 18:55:31,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1792239034] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-23 18:55:31,077 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-23 18:55:31,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 15 [2024-09-23 18:55:31,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700391174] [2024-09-23 18:55:31,078 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-23 18:55:31,079 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-23 18:55:31,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 18:55:31,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-23 18:55:31,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2024-09-23 18:55:31,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 18:55:31,082 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 18:55:31,082 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 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) [2024-09-23 18:55:31,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:55:31,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 18:55:32,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:55:32,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-23 18:55:32,271 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-09-23 18:55:32,458 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 [2024-09-23 18:55:32,459 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-23 18:55:32,459 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 18:55:32,459 INFO L85 PathProgramCache]: Analyzing trace with hash -371820061, now seen corresponding path program 1 times [2024-09-23 18:55:32,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 18:55:32,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519133681] [2024-09-23 18:55:32,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 18:55:32,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 18:55:32,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 18:55:34,749 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 18:55:34,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 18:55:34,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519133681] [2024-09-23 18:55:34,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519133681] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-23 18:55:34,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2144714491] [2024-09-23 18:55:34,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 18:55:34,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-23 18:55:34,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 18:55:34,753 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-23 18:55:34,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-23 18:55:34,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 18:55:34,825 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-09-23 18:55:34,827 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-23 18:55:35,670 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 18:55:35,670 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-23 18:55:44,178 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 18:55:44,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2144714491] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-23 18:55:44,179 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-23 18:55:44,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 30 [2024-09-23 18:55:44,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590369115] [2024-09-23 18:55:44,180 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-23 18:55:44,180 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-09-23 18:55:44,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 18:55:44,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-09-23 18:55:44,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=741, Unknown=0, NotChecked=0, Total=930 [2024-09-23 18:55:44,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 18:55:44,182 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 18:55:44,182 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 1.6774193548387097) internal successors, (52), 30 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) [2024-09-23 18:55:44,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:55:44,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-09-23 18:55:44,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 18:55:55,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:55:55,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-23 18:55:55,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-23 18:55:55,815 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-09-23 18:55:56,003 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-23 18:55:56,003 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-23 18:55:56,004 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 18:55:56,004 INFO L85 PathProgramCache]: Analyzing trace with hash 215294531, now seen corresponding path program 2 times [2024-09-23 18:55:56,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 18:55:56,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377606312] [2024-09-23 18:55:56,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 18:55:56,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 18:55:56,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 18:55:58,560 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 18:55:58,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 18:55:58,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377606312] [2024-09-23 18:55:58,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377606312] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-23 18:55:58,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [614695239] [2024-09-23 18:55:58,561 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-23 18:55:58,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-23 18:55:58,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 18:55:58,563 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) [2024-09-23 18:55:58,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-23 18:55:58,645 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-09-23 18:55:58,645 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-23 18:55:58,651 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-09-23 18:55:58,653 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-23 18:55:59,409 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-09-23 18:55:59,409 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-23 18:55:59,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [614695239] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-23 18:55:59,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-23 18:55:59,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [17] total 20 [2024-09-23 18:55:59,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422086490] [2024-09-23 18:55:59,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-23 18:55:59,410 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-23 18:55:59,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 18:55:59,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-23 18:55:59,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=377, Unknown=0, NotChecked=0, Total=420 [2024-09-23 18:55:59,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 18:55:59,411 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 18:55:59,411 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-23 18:55:59,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:55:59,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-09-23 18:55:59,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-09-23 18:55:59,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 18:56:00,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:56:00,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-23 18:56:00,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-23 18:56:00,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-23 18:56:00,957 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-09-23 18:56:01,146 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 [2024-09-23 18:56:01,146 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-23 18:56:01,146 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 18:56:01,147 INFO L85 PathProgramCache]: Analyzing trace with hash 215340659, now seen corresponding path program 1 times [2024-09-23 18:56:01,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 18:56:01,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115572121] [2024-09-23 18:56:01,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 18:56:01,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 18:56:01,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 18:56:01,235 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-09-23 18:56:01,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 18:56:01,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115572121] [2024-09-23 18:56:01,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115572121] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-23 18:56:01,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-23 18:56:01,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-23 18:56:01,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562202214] [2024-09-23 18:56:01,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-23 18:56:01,236 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-23 18:56:01,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 18:56:01,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-23 18:56:01,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-23 18:56:01,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 18:56:01,237 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 18:56:01,238 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 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) [2024-09-23 18:56:01,238 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:56:01,238 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-09-23 18:56:01,238 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-09-23 18:56:01,238 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-23 18:56:01,238 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 18:56:01,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:56:01,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-23 18:56:01,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-23 18:56:01,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-23 18:56:01,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:56:01,360 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-09-23 18:56:01,360 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-23 18:56:01,360 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 18:56:01,360 INFO L85 PathProgramCache]: Analyzing trace with hash 170056481, now seen corresponding path program 1 times [2024-09-23 18:56:01,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 18:56:01,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919356222] [2024-09-23 18:56:01,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 18:56:01,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 18:56:01,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 18:56:03,897 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 18:56:03,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 18:56:03,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919356222] [2024-09-23 18:56:03,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919356222] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-23 18:56:03,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [66056564] [2024-09-23 18:56:03,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 18:56:03,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-23 18:56:03,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 18:56:03,899 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-23 18:56:03,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-23 18:56:03,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 18:56:03,985 INFO L262 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 52 conjuncts are in the unsatisfiable core [2024-09-23 18:56:03,986 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-23 18:56:04,995 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 18:56:04,995 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-23 18:56:17,133 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 18:56:17,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [66056564] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-23 18:56:17,134 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-23 18:56:17,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 47 [2024-09-23 18:56:17,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109951565] [2024-09-23 18:56:17,134 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-23 18:56:17,135 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2024-09-23 18:56:17,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 18:56:17,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2024-09-23 18:56:17,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=465, Invalid=1887, Unknown=0, NotChecked=0, Total=2352 [2024-09-23 18:56:17,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 18:56:17,137 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 18:56:17,137 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 48 states have (on average 1.4166666666666667) internal successors, (68), 48 states have internal predecessors, (68), 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) [2024-09-23 18:56:17,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:56:17,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-09-23 18:56:17,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-09-23 18:56:17,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-23 18:56:17,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:56:17,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 18:56:45,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:56:45,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-23 18:56:45,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-23 18:56:45,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-23 18:56:45,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:56:45,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-09-23 18:56:45,891 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-09-23 18:56:46,079 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-09-23 18:56:46,079 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-23 18:56:46,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 18:56:46,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1419377695, now seen corresponding path program 2 times [2024-09-23 18:56:46,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 18:56:46,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3200273] [2024-09-23 18:56:46,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 18:56:46,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 18:56:46,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 18:56:49,816 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 256 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 18:56:49,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 18:56:49,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3200273] [2024-09-23 18:56:49,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3200273] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-23 18:56:49,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [262718178] [2024-09-23 18:56:49,817 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-23 18:56:49,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-23 18:56:49,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 18:56:49,819 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) [2024-09-23 18:56:49,820 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-23 18:56:49,908 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-09-23 18:56:49,908 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-23 18:56:49,909 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-09-23 18:56:49,911 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-23 18:56:50,634 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2024-09-23 18:56:50,634 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-23 18:56:50,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [262718178] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-23 18:56:50,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-23 18:56:50,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [28] total 31 [2024-09-23 18:56:50,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789378040] [2024-09-23 18:56:50,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-23 18:56:50,636 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-23 18:56:50,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 18:56:50,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-23 18:56:50,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=989, Unknown=0, NotChecked=0, Total=1056 [2024-09-23 18:56:50,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 18:56:50,637 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 18:56:50,637 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-23 18:56:50,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:56:50,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-09-23 18:56:50,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-09-23 18:56:50,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-23 18:56:50,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:56:50,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2024-09-23 18:56:50,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 18:57:17,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 18:57:17,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-23 18:57:17,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-09-23 18:57:17,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-23 18:57:17,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:57:17,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-09-23 18:57:17,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-23 18:57:17,421 INFO L785 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 2 remaining) [2024-09-23 18:57:17,421 INFO L785 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 2 remaining) [2024-09-23 18:57:17,433 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-09-23 18:57:17,621 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 [2024-09-23 18:57:17,627 INFO L408 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1] [2024-09-23 18:57:17,630 INFO L312 ceAbstractionStarter]: Result for error location thread2Thread1of1ForFork1 was SAFE,SAFE (1/3) [2024-09-23 18:57:17,632 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-23 18:57:17,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-23 18:57:17,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 18:57:17,635 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) [2024-09-23 18:57:17,636 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 [2024-09-23 18:57:17,639 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-23 18:57:17,639 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread1Thread1of1ForFork0 ======== [2024-09-23 18:57:17,640 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;@231336a1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-23 18:57:17,641 INFO L337 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-09-23 18:57:17,744 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-23 18:57:17,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 18:57:17,744 INFO L85 PathProgramCache]: Analyzing trace with hash -344226335, now seen corresponding path program 1 times [2024-09-23 18:57:17,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 18:57:17,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427597309] [2024-09-23 18:57:17,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 18:57:17,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 18:57:17,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 18:57:18,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 18:57:18,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 18:57:18,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427597309] [2024-09-23 18:57:18,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427597309] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-23 18:57:18,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-23 18:57:18,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-23 18:57:18,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252862970] [2024-09-23 18:57:18,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-23 18:57:18,838 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-23 18:57:18,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 18:57:18,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-23 18:57:18,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-23 18:57:18,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 18:57:18,839 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 18:57:18,839 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-23 18:57:18,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 18:57:18,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:57:18,897 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-09-23 18:57:18,897 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-23 18:57:18,897 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 18:57:18,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1633798942, now seen corresponding path program 1 times [2024-09-23 18:57:18,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 18:57:18,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528324642] [2024-09-23 18:57:18,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 18:57:18,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 18:57:18,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 18:57:19,885 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 18:57:19,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 18:57:19,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528324642] [2024-09-23 18:57:19,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528324642] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-23 18:57:19,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [462291274] [2024-09-23 18:57:19,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 18:57:19,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-23 18:57:19,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 18:57:19,887 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) [2024-09-23 18:57:19,887 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-09-23 18:57:19,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 18:57:19,963 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-09-23 18:57:19,965 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-23 18:57:20,246 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 18:57:20,246 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-23 18:57:24,195 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 18:57:24,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [462291274] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-23 18:57:24,195 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-23 18:57:24,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 14 [2024-09-23 18:57:24,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132910783] [2024-09-23 18:57:24,196 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-23 18:57:24,196 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-23 18:57:24,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 18:57:24,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-23 18:57:24,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2024-09-23 18:57:24,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 18:57:24,197 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 18:57:24,197 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.3333333333333335) internal successors, (35), 15 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-23 18:57:24,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:57:24,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 18:57:25,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:57:25,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-23 18:57:25,133 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-09-23 18:57:25,321 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 [2024-09-23 18:57:25,322 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-23 18:57:25,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 18:57:25,322 INFO L85 PathProgramCache]: Analyzing trace with hash -925525567, now seen corresponding path program 1 times [2024-09-23 18:57:25,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 18:57:25,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483453903] [2024-09-23 18:57:25,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 18:57:25,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 18:57:25,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 18:57:26,823 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 18:57:26,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 18:57:26,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483453903] [2024-09-23 18:57:26,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483453903] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-23 18:57:26,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1531135346] [2024-09-23 18:57:26,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 18:57:26,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-23 18:57:26,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 18:57:26,825 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) [2024-09-23 18:57:26,826 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-09-23 18:57:26,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 18:57:26,902 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-09-23 18:57:26,904 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-23 18:57:27,544 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 18:57:27,545 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-23 18:57:35,688 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 18:57:35,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1531135346] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-23 18:57:35,688 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-23 18:57:35,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 29 [2024-09-23 18:57:35,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120666350] [2024-09-23 18:57:35,688 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-23 18:57:35,689 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-09-23 18:57:35,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 18:57:35,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-09-23 18:57:35,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=743, Unknown=0, NotChecked=0, Total=930 [2024-09-23 18:57:35,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 18:57:35,690 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 18:57:35,690 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 1.6666666666666667) internal successors, (50), 30 states have internal predecessors, (50), 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) [2024-09-23 18:57:35,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:57:35,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-09-23 18:57:35,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 18:57:44,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:57:44,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-23 18:57:44,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-23 18:57:44,894 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-09-23 18:57:45,082 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 [2024-09-23 18:57:45,083 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-23 18:57:45,083 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 18:57:45,083 INFO L85 PathProgramCache]: Analyzing trace with hash 170056225, now seen corresponding path program 2 times [2024-09-23 18:57:45,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 18:57:45,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736684922] [2024-09-23 18:57:45,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 18:57:45,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 18:57:45,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 18:57:47,599 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 18:57:47,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 18:57:47,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736684922] [2024-09-23 18:57:47,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736684922] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-23 18:57:47,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1726548716] [2024-09-23 18:57:47,600 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-23 18:57:47,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-23 18:57:47,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 18:57:47,601 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) [2024-09-23 18:57:47,602 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-09-23 18:57:47,689 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-09-23 18:57:47,690 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-23 18:57:47,691 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-09-23 18:57:47,692 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-23 18:57:48,216 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-09-23 18:57:48,216 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-23 18:57:48,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1726548716] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-23 18:57:48,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-23 18:57:48,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [16] total 19 [2024-09-23 18:57:48,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621198363] [2024-09-23 18:57:48,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-23 18:57:48,217 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-23 18:57:48,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 18:57:48,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-23 18:57:48,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=376, Unknown=0, NotChecked=0, Total=420 [2024-09-23 18:57:48,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 18:57:48,218 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 18:57:48,218 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-23 18:57:48,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:57:48,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-09-23 18:57:48,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-09-23 18:57:48,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 18:57:57,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 18:57:57,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-23 18:57:57,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-09-23 18:57:57,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-23 18:57:57,692 INFO L785 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 2 remaining) [2024-09-23 18:57:57,693 INFO L785 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 2 remaining) [2024-09-23 18:57:57,705 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-09-23 18:57:57,893 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 [2024-09-23 18:57:57,894 INFO L408 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-09-23 18:57:57,894 INFO L312 ceAbstractionStarter]: Result for error location thread1Thread1of1ForFork0 was SAFE,SAFE (2/3) [2024-09-23 18:57:57,896 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-23 18:57:57,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-23 18:57:57,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 18:57:57,897 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-09-23 18:57:57,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (12)] Waiting until timeout for monitored process [2024-09-23 18:57:57,901 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-23 18:57:57,901 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-09-23 18:57:57,902 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;@231336a1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-23 18:57:57,902 INFO L337 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-09-23 18:57:58,185 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-23 18:57:58,185 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 18:57:58,186 INFO L85 PathProgramCache]: Analyzing trace with hash 2009564545, now seen corresponding path program 1 times [2024-09-23 18:57:58,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 18:57:58,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806152629] [2024-09-23 18:57:58,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 18:57:58,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 18:57:58,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 18:57:58,238 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 18:57:58,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 18:57:58,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806152629] [2024-09-23 18:57:58,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806152629] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-23 18:57:58,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-23 18:57:58,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-23 18:57:58,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171578791] [2024-09-23 18:57:58,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-23 18:57:58,240 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-23 18:57:58,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 18:57:58,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-23 18:57:58,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-23 18:57:58,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 18:57:58,240 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 18:57:58,241 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-23 18:57:58,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 18:57:58,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 18:57:58,316 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-09-23 18:57:58,317 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-23 18:57:58,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 18:57:58,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1249521993, now seen corresponding path program 1 times [2024-09-23 18:57:58,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 18:57:58,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612759310] [2024-09-23 18:57:58,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 18:57:58,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 18:57:58,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 18:57:58,436 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-23 18:57:58,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 18:57:58,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612759310] [2024-09-23 18:57:58,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612759310] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-23 18:57:58,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-23 18:57:58,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-23 18:57:58,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123982996] [2024-09-23 18:57:58,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-23 18:57:58,438 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-23 18:57:58,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 18:57:58,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-23 18:57:58,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-23 18:57:58,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 18:57:58,439 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 18:57:58,439 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-23 18:57:58,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-23 18:57:58,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 18:57:58,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 18:57:58,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:57:58,507 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-09-23 18:57:58,507 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-23 18:57:58,508 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 18:57:58,508 INFO L85 PathProgramCache]: Analyzing trace with hash -385302966, now seen corresponding path program 1 times [2024-09-23 18:57:58,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 18:57:58,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141868836] [2024-09-23 18:57:58,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 18:57:58,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 18:57:58,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 18:57:58,626 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-09-23 18:57:58,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 18:57:58,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141868836] [2024-09-23 18:57:58,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141868836] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-23 18:57:58,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-23 18:57:58,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-23 18:57:58,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248689830] [2024-09-23 18:57:58,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-23 18:57:58,629 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-23 18:57:58,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 18:57:58,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-23 18:57:58,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-23 18:57:58,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 18:57:58,629 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 18:57:58,629 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-23 18:57:58,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-23 18:57:58,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:57:58,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 18:57:58,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 18:57:58,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:57:58,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:57:58,695 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-09-23 18:57:58,695 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-23 18:57:58,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 18:57:58,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1591443909, now seen corresponding path program 1 times [2024-09-23 18:57:58,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 18:57:58,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102846992] [2024-09-23 18:57:58,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 18:57:58,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 18:57:58,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 18:57:58,897 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-23 18:57:58,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 18:57:58,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102846992] [2024-09-23 18:57:58,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102846992] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-23 18:57:58,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1216029359] [2024-09-23 18:57:58,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 18:57:58,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-23 18:57:58,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 18:57:58,901 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) [2024-09-23 18:57:58,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-09-23 18:57:59,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 18:57:59,030 INFO L262 TraceCheckSpWp]: Trace formula consists of 632 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-23 18:57:59,031 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-23 18:57:59,075 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-23 18:57:59,075 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-23 18:57:59,152 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-23 18:57:59,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1216029359] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-23 18:57:59,152 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-23 18:57:59,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2024-09-23 18:57:59,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162069345] [2024-09-23 18:57:59,153 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-23 18:57:59,155 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-23 18:57:59,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 18:57:59,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-23 18:57:59,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-09-23 18:57:59,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 18:57:59,157 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 18:57:59,157 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 12 states have internal predecessors, (53), 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) [2024-09-23 18:57:59,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-23 18:57:59,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:57:59,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:57:59,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 18:57:59,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 18:57:59,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:57:59,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:57:59,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 18:57:59,260 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-09-23 18:57:59,448 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-09-23 18:57:59,449 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-23 18:57:59,449 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 18:57:59,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1553912406, now seen corresponding path program 2 times [2024-09-23 18:57:59,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 18:57:59,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438692182] [2024-09-23 18:57:59,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 18:57:59,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 18:57:59,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 18:57:59,551 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-23 18:57:59,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 18:57:59,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438692182] [2024-09-23 18:57:59,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438692182] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-23 18:57:59,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-23 18:57:59,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-23 18:57:59,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876269115] [2024-09-23 18:57:59,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-23 18:57:59,553 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-23 18:57:59,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 18:57:59,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-23 18:57:59,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-23 18:57:59,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 18:57:59,554 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 18:57:59,554 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 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) [2024-09-23 18:57:59,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-23 18:57:59,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:57:59,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:57:59,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 18:57:59,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 18:57:59,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 18:57:59,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:57:59,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:57:59,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 18:57:59,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:57:59,642 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-09-23 18:57:59,642 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-23 18:57:59,642 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 18:57:59,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1612234318, now seen corresponding path program 3 times [2024-09-23 18:57:59,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 18:57:59,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665505809] [2024-09-23 18:57:59,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 18:57:59,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 18:57:59,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 18:57:59,836 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-23 18:57:59,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 18:57:59,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665505809] [2024-09-23 18:57:59,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665505809] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-23 18:57:59,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1000791451] [2024-09-23 18:57:59,837 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-23 18:57:59,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-23 18:57:59,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 18:57:59,839 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) [2024-09-23 18:57:59,840 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-09-23 18:57:59,968 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-23 18:57:59,968 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-23 18:57:59,970 INFO L262 TraceCheckSpWp]: Trace formula consists of 641 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-09-23 18:57:59,972 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-23 18:58:00,346 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-23 18:58:00,346 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 39 treesize of output 31 [2024-09-23 18:58:00,414 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-09-23 18:58:00,414 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-23 18:58:00,698 INFO L349 Elim1Store]: treesize reduction 4, result has 95.7 percent of original size [2024-09-23 18:58:00,699 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 46 treesize of output 102 [2024-09-23 18:58:01,141 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-09-23 18:58:01,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1000791451] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-23 18:58:01,141 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-23 18:58:01,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 12, 11] total 26 [2024-09-23 18:58:01,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854337565] [2024-09-23 18:58:01,141 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-23 18:58:01,142 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-09-23 18:58:01,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 18:58:01,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-09-23 18:58:01,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=608, Unknown=0, NotChecked=0, Total=702 [2024-09-23 18:58:01,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 18:58:01,143 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 18:58:01,143 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 2.814814814814815) internal successors, (76), 26 states have internal predecessors, (76), 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) [2024-09-23 18:58:01,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-23 18:58:01,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:01,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:01,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 18:58:01,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:01,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 18:58:02,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 18:58:02,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:02,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:02,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 18:58:02,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:02,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-23 18:58:02,177 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-09-23 18:58:02,365 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-09-23 18:58:02,365 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-23 18:58:02,365 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 18:58:02,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1931235389, now seen corresponding path program 4 times [2024-09-23 18:58:02,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 18:58:02,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831037860] [2024-09-23 18:58:02,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 18:58:02,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 18:58:02,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 18:58:02,726 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 42 proven. 11 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-09-23 18:58:02,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 18:58:02,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831037860] [2024-09-23 18:58:02,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831037860] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-23 18:58:02,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2047285686] [2024-09-23 18:58:02,727 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-23 18:58:02,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-23 18:58:02,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 18:58:02,729 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) [2024-09-23 18:58:02,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-09-23 18:58:02,965 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-23 18:58:02,965 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-23 18:58:02,972 INFO L262 TraceCheckSpWp]: Trace formula consists of 1410 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-23 18:58:02,974 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-23 18:58:03,114 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 37 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-09-23 18:58:03,114 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-23 18:58:03,259 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 15 proven. 26 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-09-23 18:58:03,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2047285686] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-23 18:58:03,259 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-23 18:58:03,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 19 [2024-09-23 18:58:03,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908723196] [2024-09-23 18:58:03,260 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-23 18:58:03,260 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-09-23 18:58:03,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 18:58:03,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-09-23 18:58:03,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2024-09-23 18:58:03,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 18:58:03,261 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 18:58:03,261 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 4.7368421052631575) internal successors, (90), 19 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) [2024-09-23 18:58:03,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-23 18:58:03,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:03,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:03,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 18:58:03,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:03,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-09-23 18:58:03,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 18:58:03,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 18:58:03,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:03,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:03,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 18:58:03,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:03,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-23 18:58:03,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-23 18:58:03,533 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-09-23 18:58:03,718 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-09-23 18:58:03,719 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-23 18:58:03,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 18:58:03,719 INFO L85 PathProgramCache]: Analyzing trace with hash -124365895, now seen corresponding path program 5 times [2024-09-23 18:58:03,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 18:58:03,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227467486] [2024-09-23 18:58:03,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 18:58:03,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 18:58:03,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 18:58:04,103 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 46 proven. 12 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-09-23 18:58:04,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 18:58:04,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227467486] [2024-09-23 18:58:04,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227467486] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-23 18:58:04,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1472632999] [2024-09-23 18:58:04,103 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-23 18:58:04,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-23 18:58:04,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 18:58:04,105 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) [2024-09-23 18:58:04,108 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-09-23 18:58:04,333 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2024-09-23 18:58:04,333 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-23 18:58:04,336 INFO L262 TraceCheckSpWp]: Trace formula consists of 1428 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-23 18:58:04,338 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-23 18:58:04,386 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-09-23 18:58:04,386 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-23 18:58:04,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1472632999] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-23 18:58:04,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-23 18:58:04,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 12 [2024-09-23 18:58:04,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313226829] [2024-09-23 18:58:04,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-23 18:58:04,387 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-23 18:58:04,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 18:58:04,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-23 18:58:04,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-09-23 18:58:04,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 18:58:04,387 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 18:58:04,387 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-23 18:58:04,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-23 18:58:04,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:04,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:04,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 18:58:04,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:04,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-09-23 18:58:04,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-09-23 18:58:04,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 18:58:04,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 18:58:04,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:04,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:04,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 18:58:04,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:04,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-23 18:58:04,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-23 18:58:04,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:04,499 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-09-23 18:58:04,686 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-23 18:58:04,686 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-23 18:58:04,687 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 18:58:04,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1800275441, now seen corresponding path program 6 times [2024-09-23 18:58:04,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 18:58:04,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119462032] [2024-09-23 18:58:04,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 18:58:04,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 18:58:04,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 18:58:05,198 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 20 proven. 62 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-23 18:58:05,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 18:58:05,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119462032] [2024-09-23 18:58:05,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119462032] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-23 18:58:05,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1516767704] [2024-09-23 18:58:05,199 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-23 18:58:05,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-23 18:58:05,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 18:58:05,201 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) [2024-09-23 18:58:05,218 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-09-23 18:58:05,507 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2024-09-23 18:58:05,507 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-23 18:58:05,510 INFO L262 TraceCheckSpWp]: Trace formula consists of 1428 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-23 18:58:05,512 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-23 18:58:05,724 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 64 proven. 24 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-09-23 18:58:05,724 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-23 18:58:05,980 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 67 proven. 21 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-09-23 18:58:05,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1516767704] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-23 18:58:05,980 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-23 18:58:05,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 11] total 29 [2024-09-23 18:58:05,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739875469] [2024-09-23 18:58:05,981 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-23 18:58:05,981 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-09-23 18:58:05,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 18:58:05,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-09-23 18:58:05,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=204, Invalid=608, Unknown=0, NotChecked=0, Total=812 [2024-09-23 18:58:05,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 18:58:05,982 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 18:58:05,982 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.413793103448276) internal successors, (128), 29 states have internal predecessors, (128), 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) [2024-09-23 18:58:05,983 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-23 18:58:05,983 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:05,983 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:05,983 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 18:58:05,983 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:05,983 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-09-23 18:58:05,983 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-09-23 18:58:05,983 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:05,983 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 18:58:06,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 18:58:06,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:06,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:06,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 18:58:06,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:06,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-23 18:58:06,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-23 18:58:06,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:06,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-23 18:58:06,247 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-09-23 18:58:06,429 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,17 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-23 18:58:06,430 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-23 18:58:06,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 18:58:06,431 INFO L85 PathProgramCache]: Analyzing trace with hash -140290346, now seen corresponding path program 7 times [2024-09-23 18:58:06,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 18:58:06,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924934162] [2024-09-23 18:58:06,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 18:58:06,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 18:58:06,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 18:58:06,994 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 26 proven. 71 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-09-23 18:58:06,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 18:58:06,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924934162] [2024-09-23 18:58:06,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924934162] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-23 18:58:06,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [531257370] [2024-09-23 18:58:06,995 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-23 18:58:06,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-23 18:58:06,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 18:58:06,997 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) [2024-09-23 18:58:06,998 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-09-23 18:58:07,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 18:58:07,260 INFO L262 TraceCheckSpWp]: Trace formula consists of 1741 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-23 18:58:07,263 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-23 18:58:07,461 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 73 proven. 6 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-09-23 18:58:07,462 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-23 18:58:07,676 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 55 proven. 24 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-09-23 18:58:07,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [531257370] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-23 18:58:07,677 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-23 18:58:07,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 27 [2024-09-23 18:58:07,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623696267] [2024-09-23 18:58:07,677 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-23 18:58:07,678 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-09-23 18:58:07,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 18:58:07,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-09-23 18:58:07,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=588, Unknown=0, NotChecked=0, Total=702 [2024-09-23 18:58:07,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 18:58:07,679 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 18:58:07,679 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 4.518518518518518) internal successors, (122), 27 states have internal predecessors, (122), 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) [2024-09-23 18:58:07,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-23 18:58:07,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:07,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:07,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 18:58:07,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:07,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-09-23 18:58:07,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-09-23 18:58:07,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:07,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-09-23 18:58:07,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 18:58:07,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 18:58:07,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:07,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:07,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 18:58:07,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:07,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-23 18:58:07,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-23 18:58:07,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:07,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-23 18:58:07,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-23 18:58:07,890 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-09-23 18:58:08,071 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,18 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-23 18:58:08,072 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-23 18:58:08,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 18:58:08,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1756103442, now seen corresponding path program 8 times [2024-09-23 18:58:08,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 18:58:08,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559609396] [2024-09-23 18:58:08,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 18:58:08,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 18:58:08,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 18:58:08,672 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 40 proven. 69 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-09-23 18:58:08,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 18:58:08,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559609396] [2024-09-23 18:58:08,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559609396] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-23 18:58:08,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [222647658] [2024-09-23 18:58:08,672 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-23 18:58:08,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-23 18:58:08,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 18:58:08,675 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) [2024-09-23 18:58:08,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-09-23 18:58:08,947 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-23 18:58:08,947 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-23 18:58:08,951 INFO L262 TraceCheckSpWp]: Trace formula consists of 1759 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-23 18:58:08,953 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-23 18:58:09,037 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 37 proven. 24 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-09-23 18:58:09,037 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-23 18:58:09,299 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 29 proven. 63 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-09-23 18:58:09,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [222647658] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-23 18:58:09,300 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-23 18:58:09,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 4, 10] total 26 [2024-09-23 18:58:09,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549721193] [2024-09-23 18:58:09,300 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-23 18:58:09,300 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-09-23 18:58:09,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 18:58:09,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-09-23 18:58:09,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=534, Unknown=0, NotChecked=0, Total=650 [2024-09-23 18:58:09,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 18:58:09,301 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 18:58:09,302 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.346153846153846) internal successors, (139), 26 states have internal predecessors, (139), 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) [2024-09-23 18:58:09,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-23 18:58:09,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:09,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:09,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 18:58:09,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:09,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-09-23 18:58:09,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-09-23 18:58:09,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:09,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-09-23 18:58:09,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-09-23 18:58:09,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 18:58:09,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 18:58:09,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:09,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:09,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 18:58:09,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:09,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-23 18:58:09,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-23 18:58:09,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:09,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-23 18:58:09,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-23 18:58:09,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-23 18:58:09,529 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-09-23 18:58:09,715 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-09-23 18:58:09,716 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-23 18:58:09,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 18:58:09,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1786240797, now seen corresponding path program 9 times [2024-09-23 18:58:09,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 18:58:09,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599566570] [2024-09-23 18:58:09,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 18:58:09,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 18:58:10,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 18:58:15,408 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 2 proven. 85 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 18:58:15,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 18:58:15,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599566570] [2024-09-23 18:58:15,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599566570] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-23 18:58:15,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1584639624] [2024-09-23 18:58:15,409 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-23 18:58:15,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-23 18:58:15,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 18:58:15,410 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) [2024-09-23 18:58:15,411 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-09-23 18:58:16,097 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-09-23 18:58:16,097 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-23 18:58:16,102 INFO L262 TraceCheckSpWp]: Trace formula consists of 1464 conjuncts, 67 conjuncts are in the unsatisfiable core [2024-09-23 18:58:16,104 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-23 18:58:17,725 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-23 18:58:17,725 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 60 [2024-09-23 18:58:17,854 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 16 proven. 68 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-23 18:58:17,854 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-23 18:58:25,451 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-23 18:58:25,452 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 108 treesize of output 373 [2024-09-23 18:58:45,573 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 5 proven. 61 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-09-23 18:58:45,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1584639624] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-23 18:58:45,573 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-23 18:58:45,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 31, 27] total 87 [2024-09-23 18:58:45,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320364185] [2024-09-23 18:58:45,574 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-23 18:58:45,574 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 88 states [2024-09-23 18:58:45,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 18:58:45,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2024-09-23 18:58:45,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=695, Invalid=6958, Unknown=3, NotChecked=0, Total=7656 [2024-09-23 18:58:45,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 18:58:45,577 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 18:58:45,577 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 88 states, 88 states have (on average 1.7840909090909092) internal successors, (157), 87 states have internal predecessors, (157), 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) [2024-09-23 18:58:45,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-23 18:58:45,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:45,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:45,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 18:58:45,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:45,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-09-23 18:58:45,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-09-23 18:58:45,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:45,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-09-23 18:58:45,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-09-23 18:58:45,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-23 18:58:45,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 18:58:48,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 18:58:48,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:48,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:48,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 18:58:48,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:48,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-23 18:58:48,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-23 18:58:48,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:48,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-23 18:58:48,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-23 18:58:48,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-23 18:58:48,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-09-23 18:58:48,704 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-09-23 18:58:48,891 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,20 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-23 18:58:48,892 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-23 18:58:48,892 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 18:58:48,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1985280547, now seen corresponding path program 10 times [2024-09-23 18:58:48,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 18:58:48,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155663989] [2024-09-23 18:58:48,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 18:58:48,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 18:58:48,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 18:58:50,279 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 135 proven. 115 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-09-23 18:58:50,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 18:58:50,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155663989] [2024-09-23 18:58:50,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155663989] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-23 18:58:50,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [558140729] [2024-09-23 18:58:50,279 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-23 18:58:50,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-23 18:58:50,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 18:58:50,281 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-23 18:58:50,282 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-09-23 18:58:50,637 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-23 18:58:50,637 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-23 18:58:50,643 INFO L262 TraceCheckSpWp]: Trace formula consists of 2698 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-23 18:58:50,646 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-23 18:58:51,013 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 230 proven. 21 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-09-23 18:58:51,013 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-23 18:58:51,396 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 166 proven. 85 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-09-23 18:58:51,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [558140729] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-23 18:58:51,396 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-23 18:58:51,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 15] total 43 [2024-09-23 18:58:51,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573845166] [2024-09-23 18:58:51,396 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-23 18:58:51,396 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2024-09-23 18:58:51,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 18:58:51,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2024-09-23 18:58:51,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=281, Invalid=1525, Unknown=0, NotChecked=0, Total=1806 [2024-09-23 18:58:51,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 18:58:51,398 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 18:58:51,398 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 4.534883720930233) internal successors, (195), 43 states have internal predecessors, (195), 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) [2024-09-23 18:58:51,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-23 18:58:51,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:51,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:51,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 18:58:51,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:51,399 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-09-23 18:58:51,399 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-09-23 18:58:51,399 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:51,399 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-09-23 18:58:51,399 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-09-23 18:58:51,399 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-23 18:58:51,399 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2024-09-23 18:58:51,399 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 18:58:51,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 18:58:51,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:51,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:51,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 18:58:51,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:51,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-23 18:58:51,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-23 18:58:51,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:51,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-23 18:58:51,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-23 18:58:51,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-23 18:58:51,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-09-23 18:58:51,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-09-23 18:58:51,660 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-09-23 18:58:51,846 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-09-23 18:58:51,846 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-23 18:58:51,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 18:58:51,846 INFO L85 PathProgramCache]: Analyzing trace with hash -699077799, now seen corresponding path program 11 times [2024-09-23 18:58:51,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 18:58:51,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843688248] [2024-09-23 18:58:51,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 18:58:51,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 18:58:51,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 18:58:52,966 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 147 proven. 114 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-09-23 18:58:52,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 18:58:52,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843688248] [2024-09-23 18:58:52,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843688248] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-23 18:58:52,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [741285205] [2024-09-23 18:58:52,967 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-23 18:58:52,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-23 18:58:52,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 18:58:52,969 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-23 18:58:52,970 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-09-23 18:58:53,944 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2024-09-23 18:58:53,945 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-23 18:58:53,953 INFO L262 TraceCheckSpWp]: Trace formula consists of 2716 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-23 18:58:53,956 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-23 18:58:54,064 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 101 proven. 34 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2024-09-23 18:58:54,065 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-23 18:58:54,472 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 54 proven. 185 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-09-23 18:58:54,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [741285205] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-23 18:58:54,472 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-23 18:58:54,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 4, 16] total 35 [2024-09-23 18:58:54,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196111207] [2024-09-23 18:58:54,472 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-23 18:58:54,473 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-09-23 18:58:54,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 18:58:54,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-09-23 18:58:54,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=220, Invalid=1040, Unknown=0, NotChecked=0, Total=1260 [2024-09-23 18:58:54,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 18:58:54,474 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 18:58:54,474 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 4.972222222222222) internal successors, (179), 35 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-23 18:58:54,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-23 18:58:54,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:54,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:54,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 18:58:54,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:54,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-09-23 18:58:54,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-09-23 18:58:54,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:54,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-09-23 18:58:54,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-09-23 18:58:54,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-23 18:58:54,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2024-09-23 18:58:54,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-09-23 18:58:54,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 18:58:54,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 18:58:54,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:54,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:54,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 18:58:54,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:54,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-23 18:58:54,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-23 18:58:54,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 18:58:54,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-23 18:58:54,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-23 18:58:54,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-23 18:58:54,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-09-23 18:58:54,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-09-23 18:58:54,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-09-23 18:58:54,918 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-09-23 18:58:55,103 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-09-23 18:58:55,103 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-23 18:58:55,103 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 18:58:55,103 INFO L85 PathProgramCache]: Analyzing trace with hash 52437914, now seen corresponding path program 12 times [2024-09-23 18:58:55,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 18:58:55,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117080754] [2024-09-23 18:58:55,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 18:58:55,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 18:58:55,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 18:58:56,024 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 150 proven. 114 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-23 18:58:56,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 18:58:56,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117080754] [2024-09-23 18:58:56,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117080754] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-23 18:58:56,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [939175385] [2024-09-23 18:58:56,024 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-23 18:58:56,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-23 18:58:56,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 18:58:56,027 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-23 18:58:56,029 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-09-23 18:59:06,039 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2024-09-23 18:59:06,039 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-23 18:59:06,056 INFO L262 TraceCheckSpWp]: Trace formula consists of 2421 conjuncts, 147 conjuncts are in the unsatisfiable core [2024-09-23 18:59:06,061 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-23 18:59:06,436 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 15 treesize of output 1 [2024-09-23 18:59:06,468 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 15 treesize of output 1 [2024-09-23 18:59:06,501 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 15 treesize of output 1 [2024-09-23 18:59:11,543 INFO L349 Elim1Store]: treesize reduction 199, result has 69.0 percent of original size [2024-09-23 18:59:11,543 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 11 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 138 treesize of output 495 [2024-09-23 19:01:16,539 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 36 proven. 268 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 19:01:16,539 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-23 19:01:57,163 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-23 19:01:57,164 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 23008 treesize of output 22500 [2024-09-23 19:02:02,058 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-23 19:02:02,058 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 402 treesize of output 332 [2024-09-23 19:02:03,696 INFO L349 Elim1Store]: treesize reduction 90, result has 87.9 percent of original size [2024-09-23 19:02:03,699 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 71691 treesize of output 64188 [2024-09-23 19:02:52,891 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") [2024-09-23 19:02:52,891 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 [2024-09-23 19:02:52,893 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2024-09-23 19:02:52,915 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-09-23 19:02:53,093 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-09-23 19:02:53,094 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.assertTerm(Scriptor.java:147) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.assertTerm(DiffWrapperScript.java:111) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.assertTerm(WrapperScript.java:158) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.simplify(SimplifyDDA2.java:604) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:252) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:324) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify(QuantifierPusher.java:731) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:255) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:338) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.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) ... 70 more [2024-09-23 19:02:53,098 INFO L158 Benchmark]: Toolchain (without parser) took 454484.89ms. Allocated memory was 144.7MB in the beginning and 2.9GB in the end (delta: 2.8GB). Free memory was 94.1MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 1.8GB. Max. memory is 16.1GB. [2024-09-23 19:02:53,098 INFO L158 Benchmark]: CDTParser took 0.53ms. Allocated memory is still 144.7MB. Free memory is still 112.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-23 19:02:53,099 INFO L158 Benchmark]: Witness Parser took 0.13ms. Allocated memory is still 144.7MB. Free memory is still 106.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-23 19:02:53,099 INFO L158 Benchmark]: CACSL2BoogieTranslator took 465.81ms. Allocated memory is still 144.7MB. Free memory was 93.6MB in the beginning and 67.3MB in the end (delta: 26.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-09-23 19:02:53,099 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.17ms. Allocated memory is still 144.7MB. Free memory was 67.3MB in the beginning and 112.0MB in the end (delta: -44.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-09-23 19:02:53,099 INFO L158 Benchmark]: Boogie Preprocessor took 53.31ms. Allocated memory is still 144.7MB. Free memory was 112.0MB in the beginning and 110.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-23 19:02:53,099 INFO L158 Benchmark]: RCFGBuilder took 1160.59ms. Allocated memory was 144.7MB in the beginning and 176.2MB in the end (delta: 31.5MB). Free memory was 110.1MB in the beginning and 85.6MB in the end (delta: 24.5MB). Peak memory consumption was 92.4MB. Max. memory is 16.1GB. [2024-09-23 19:02:53,100 INFO L158 Benchmark]: TraceAbstraction took 452722.61ms. Allocated memory was 176.2MB in the beginning and 2.9GB in the end (delta: 2.7GB). Free memory was 84.6MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 1.8GB. Max. memory is 16.1GB. [2024-09-23 19:02:53,101 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53ms. Allocated memory is still 144.7MB. Free memory is still 112.0MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.13ms. Allocated memory is still 144.7MB. Free memory is still 106.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 465.81ms. Allocated memory is still 144.7MB. Free memory was 93.6MB in the beginning and 67.3MB in the end (delta: 26.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.17ms. Allocated memory is still 144.7MB. Free memory was 67.3MB in the beginning and 112.0MB in the end (delta: -44.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.31ms. Allocated memory is still 144.7MB. Free memory was 112.0MB in the beginning and 110.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1160.59ms. Allocated memory was 144.7MB in the beginning and 176.2MB in the end (delta: 31.5MB). Free memory was 110.1MB in the beginning and 85.6MB in the end (delta: 24.5MB). Peak memory consumption was 92.4MB. Max. memory is 16.1GB. * TraceAbstraction took 452722.61ms. Allocated memory was 176.2MB in the beginning and 2.9GB in the end (delta: 2.7GB). Free memory was 84.6MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 1.8GB. 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: 2825, independent: 2084, independent conditional: 1725, independent unconditional: 359, dependent: 741, dependent conditional: 737, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2110, independent: 2084, independent conditional: 1725, independent unconditional: 359, dependent: 26, dependent conditional: 22, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 2110, independent: 2084, independent conditional: 1725, independent unconditional: 359, dependent: 26, dependent conditional: 22, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2179, independent: 2084, independent conditional: 1725, independent unconditional: 359, dependent: 95, dependent conditional: 91, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2179, independent: 2084, independent conditional: 0, independent unconditional: 2084, dependent: 95, dependent conditional: 69, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2179, independent: 2084, independent conditional: 0, independent unconditional: 2084, dependent: 95, dependent conditional: 69, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 293, independent: 279, independent conditional: 0, independent unconditional: 279, dependent: 14, dependent conditional: 10, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 293, independent: 256, independent conditional: 0, independent unconditional: 256, dependent: 37, dependent conditional: 0, dependent unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 37, independent: 23, independent conditional: 0, independent unconditional: 23, dependent: 14, dependent conditional: 10, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 37, independent: 23, independent conditional: 0, independent unconditional: 23, dependent: 14, dependent conditional: 10, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 624, independent: 411, independent conditional: 0, independent unconditional: 411, dependent: 213, dependent conditional: 186, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 2179, independent: 1805, independent conditional: 0, independent unconditional: 1805, dependent: 81, dependent conditional: 59, dependent unconditional: 22, unknown: 293, unknown conditional: 10, unknown unconditional: 283] , Statistics on independence cache: Total cache size (in pairs): 293, Positive cache size: 279, Positive conditional cache size: 0, Positive unconditional cache size: 279, Negative cache size: 14, Negative conditional cache size: 10, Negative unconditional cache size: 4, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 1747, Maximal queried relation: 4, Independence queries for same thread: 715, Persistent sets #1 benchmarks: Persistent set computation time: 0.5s, Number of persistent set computation: 82, Number of trivial persistent sets: 68, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 363, independent: 359, independent conditional: 0, independent unconditional: 359, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2825, independent: 2084, independent conditional: 1725, independent unconditional: 359, dependent: 741, dependent conditional: 737, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2110, independent: 2084, independent conditional: 1725, independent unconditional: 359, dependent: 26, dependent conditional: 22, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 2110, independent: 2084, independent conditional: 1725, independent unconditional: 359, dependent: 26, dependent conditional: 22, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2179, independent: 2084, independent conditional: 1725, independent unconditional: 359, dependent: 95, dependent conditional: 91, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2179, independent: 2084, independent conditional: 0, independent unconditional: 2084, dependent: 95, dependent conditional: 69, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2179, independent: 2084, independent conditional: 0, independent unconditional: 2084, dependent: 95, dependent conditional: 69, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 293, independent: 279, independent conditional: 0, independent unconditional: 279, dependent: 14, dependent conditional: 10, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 293, independent: 256, independent conditional: 0, independent unconditional: 256, dependent: 37, dependent conditional: 0, dependent unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 37, independent: 23, independent conditional: 0, independent unconditional: 23, dependent: 14, dependent conditional: 10, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 37, independent: 23, independent conditional: 0, independent unconditional: 23, dependent: 14, dependent conditional: 10, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 624, independent: 411, independent conditional: 0, independent unconditional: 411, dependent: 213, dependent conditional: 186, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 2179, independent: 1805, independent conditional: 0, independent unconditional: 1805, dependent: 81, dependent conditional: 59, dependent unconditional: 22, unknown: 293, unknown conditional: 10, unknown unconditional: 283] , Statistics on independence cache: Total cache size (in pairs): 293, Positive cache size: 279, Positive conditional cache size: 0, Positive unconditional cache size: 279, Negative cache size: 14, Negative conditional cache size: 10, Negative unconditional cache size: 4, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 1747, Maximal queried relation: 4, Independence queries for same thread: 715 - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1343, independent: 1068, independent conditional: 674, independent unconditional: 394, dependent: 275, dependent conditional: 271, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1078, independent: 1068, independent conditional: 674, independent unconditional: 394, dependent: 10, dependent conditional: 6, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1078, independent: 1068, independent conditional: 674, independent unconditional: 394, dependent: 10, dependent conditional: 6, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1090, independent: 1068, independent conditional: 674, independent unconditional: 394, dependent: 22, dependent conditional: 18, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1090, independent: 1068, independent conditional: 0, independent unconditional: 1068, dependent: 22, dependent conditional: 12, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1090, independent: 1068, independent conditional: 0, independent unconditional: 1068, dependent: 22, dependent conditional: 12, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 303, independent: 294, independent conditional: 0, independent unconditional: 294, dependent: 9, dependent conditional: 5, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 303, independent: 271, independent conditional: 0, independent unconditional: 271, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 32, independent: 23, independent conditional: 0, independent unconditional: 23, dependent: 9, dependent conditional: 5, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 32, independent: 23, independent conditional: 0, independent unconditional: 23, dependent: 9, dependent conditional: 5, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 330, independent: 236, independent conditional: 0, independent unconditional: 236, dependent: 93, dependent conditional: 69, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 1090, independent: 774, independent conditional: 0, independent unconditional: 774, dependent: 13, dependent conditional: 7, dependent unconditional: 6, unknown: 303, unknown conditional: 5, unknown unconditional: 298] , Statistics on independence cache: Total cache size (in pairs): 303, Positive cache size: 294, Positive conditional cache size: 0, Positive unconditional cache size: 294, Negative cache size: 9, Negative conditional cache size: 5, Negative unconditional cache size: 4, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 680, Maximal queried relation: 2, Independence queries for same thread: 265, Persistent sets #1 benchmarks: Persistent set computation time: 0.3s, Number of persistent set computation: 79, Number of trivial persistent sets: 70, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 398, independent: 394, independent conditional: 0, independent unconditional: 394, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1343, independent: 1068, independent conditional: 674, independent unconditional: 394, dependent: 275, dependent conditional: 271, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1078, independent: 1068, independent conditional: 674, independent unconditional: 394, dependent: 10, dependent conditional: 6, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1078, independent: 1068, independent conditional: 674, independent unconditional: 394, dependent: 10, dependent conditional: 6, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1090, independent: 1068, independent conditional: 674, independent unconditional: 394, dependent: 22, dependent conditional: 18, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1090, independent: 1068, independent conditional: 0, independent unconditional: 1068, dependent: 22, dependent conditional: 12, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1090, independent: 1068, independent conditional: 0, independent unconditional: 1068, dependent: 22, dependent conditional: 12, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 303, independent: 294, independent conditional: 0, independent unconditional: 294, dependent: 9, dependent conditional: 5, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 303, independent: 271, independent conditional: 0, independent unconditional: 271, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 32, independent: 23, independent conditional: 0, independent unconditional: 23, dependent: 9, dependent conditional: 5, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 32, independent: 23, independent conditional: 0, independent unconditional: 23, dependent: 9, dependent conditional: 5, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 330, independent: 236, independent conditional: 0, independent unconditional: 236, dependent: 93, dependent conditional: 69, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 1090, independent: 774, independent conditional: 0, independent unconditional: 774, dependent: 13, dependent conditional: 7, dependent unconditional: 6, unknown: 303, unknown conditional: 5, unknown unconditional: 298] , Statistics on independence cache: Total cache size (in pairs): 303, Positive cache size: 294, Positive conditional cache size: 0, Positive unconditional cache size: 294, Negative cache size: 9, Negative conditional cache size: 5, Negative unconditional cache size: 4, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 680, Maximal queried relation: 2, Independence queries for same thread: 265 - 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. [2024-09-23 19:02:53,127 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (12)] Ended with exit code 0 [2024-09-23 19:02:53,323 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (8)] Forceful destruction successful, exit code 0 [2024-09-23 19:02:53,523 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-two-queue.wvr.c ./goblint.2024-09-02_08-21-23.files/mutex-meet-local/popl20-two-queue.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-dev-e94c40d-m [2024-09-23 19:02:55,849 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-23 19:02:55,931 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf [2024-09-23 19:02:55,936 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-23 19:02:55,936 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-23 19:02:55,968 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-23 19:02:55,968 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-23 19:02:55,969 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-23 19:02:55,969 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-23 19:02:55,970 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-23 19:02:55,971 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-23 19:02:55,971 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-23 19:02:55,971 INFO L153 SettingsManager]: * Use SBE=true [2024-09-23 19:02:55,973 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-23 19:02:55,974 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-23 19:02:55,974 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-23 19:02:55,974 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-23 19:02:55,975 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-23 19:02:55,975 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-23 19:02:55,975 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-23 19:02:55,975 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-23 19:02:55,979 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-23 19:02:55,979 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-23 19:02:55,980 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-23 19:02:55,980 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-23 19:02:55,980 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-23 19:02:55,981 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-23 19:02:55,981 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-23 19:02:55,981 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-23 19:02:55,982 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-23 19:02:55,982 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-23 19:02:55,982 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-23 19:02:55,983 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-23 19:02:55,983 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-23 19:02:55,989 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-23 19:02:55,989 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-23 19:02:55,989 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-09-23 19:02:55,989 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-23 19:02:55,989 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-23 19:02:55,989 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-09-23 19:02:55,990 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-09-23 19:02:55,991 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-09-23 19:02:55,991 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-23 19:02:55,991 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-09-23 19:02:56,314 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-23 19:02:56,340 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-23 19:02:56,343 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-23 19:02:56,344 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-23 19:02:56,345 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-23 19:02:56,346 INFO L431 ainManager$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-two-queue.wvr.yml/witness.yml [2024-09-23 19:02:56,548 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-23 19:02:56,548 INFO L274 PluginConnector]: CDTParser initialized [2024-09-23 19:02:56,549 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-two-queue.wvr.c [2024-09-23 19:02:57,987 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-23 19:02:58,224 INFO L384 CDTParser]: Found 1 translation units. [2024-09-23 19:02:58,225 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-two-queue.wvr.c [2024-09-23 19:02:58,234 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/945a63192/d06197d23a1542db82aef59f3b3cc2ce/FLAG3f974fa30 [2024-09-23 19:02:58,251 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/945a63192/d06197d23a1542db82aef59f3b3cc2ce [2024-09-23 19:02:58,252 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-23 19:02:58,256 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-23 19:02:58,257 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-23 19:02:58,257 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-23 19:02:58,264 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-23 19:02:58,265 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 23.09 07:02:56" (1/2) ... [2024-09-23 19:02:58,266 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@411c0850 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.09 07:02:58, skipping insertion in model container [2024-09-23 19:02:58,266 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 23.09 07:02:56" (1/2) ... [2024-09-23 19:02:58,267 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2c508796 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.09 07:02:58, skipping insertion in model container [2024-09-23 19:02:58,267 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.09 07:02:58" (2/2) ... [2024-09-23 19:02:58,268 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@411c0850 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 07:02:58, skipping insertion in model container [2024-09-23 19:02:58,268 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.09 07:02:58" (2/2) ... [2024-09-23 19:02:58,329 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-23 19:02:58,329 INFO L1541 ArrayList]: Location invariant before [L49-L49] ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((2147483648LL + (long long )n1) + (long long )q1_front >= 0LL) && ((2147483648LL + (long long )n1) + (long long )q1_back >= 0LL)) && ((2147483648LL + (long long )n1) + (long long )q2_front >= 0LL)) && ((2147483648LL + (long long )n1) + (long long )q2_back >= 0LL)) && ((2147483648LL + (long long )n2) + (long long )q1_front >= 0LL)) && ((2147483648LL + (long long )n2) + (long long )q1_back >= 0LL)) && ((2147483648LL + (long long )n2) + (long long )q2_front >= 0LL)) && ((2147483648LL + (long long )n2) + (long long )q2_back >= 0LL)) && ((2147483648LL + (long long )N) + (long long )n1 >= 0LL)) && ((2147483648LL + (long long )N) + (long long )n2 >= 0LL)) && ((1073741823LL - (long long )n1) + (long long )n2 >= 0LL)) && ((2147483647LL - (long long )N) + (long long )n1 >= 0LL)) && ((2147483647LL - (long long )N) + (long long )n2 >= 0LL)) && ((3221225471LL - (long long )n1) + (long long )q1_front >= 0LL)) && ((3221225471LL - (long long )n1) + (long long )q1_back >= 0LL)) && ((3221225471LL - (long long )n1) + (long long )q2_front >= 0LL)) && ((3221225471LL - (long long )n1) + (long long )q2_back >= 0LL)) && ((3221225471LL - (long long )n2) + (long long )q1_front >= 0LL)) && ((3221225471LL - (long long )n2) + (long long )q1_back >= 0LL)) && ((3221225471LL - (long long )n2) + (long long )q2_front >= 0LL)) && ((3221225471LL - (long long )n2) + (long long )q2_back >= 0LL)) && ((4294967295LL - (long long )q1_front) + (long long )q2_front >= 0LL)) && ((4294967295LL - (long long )q1_front) + (long long )q2_back >= 0LL)) && ((4294967295LL - (long long )q1_back) + (long long )q1_front >= 0LL)) && ((4294967295LL - (long long )q1_back) + (long long )q2_front >= 0LL)) && ((4294967295LL - (long long )q1_back) + (long long )q2_back >= 0LL)) && ((4294967295LL - (long long )q2_back) + (long long )q2_front >= 0LL)) && ((long long )n1 + (long long )n2 >= 0LL)) && ((1073741823LL + (long long )n1) - (long long )n2 >= 0LL)) && ((2147483647LL + (long long )n1) - (long long )q1_front >= 0LL)) && ((2147483647LL + (long long )n1) - (long long )q1_back >= 0LL)) && ((2147483647LL + (long long )n1) - (long long )q2_front >= 0LL)) && ((2147483647LL + (long long )n1) - (long long )q2_back >= 0LL)) && ((2147483647LL + (long long )n2) - (long long )q1_front >= 0LL)) && ((2147483647LL + (long long )n2) - (long long )q1_back >= 0LL)) && ((2147483647LL + (long long )n2) - (long long )q2_front >= 0LL)) && ((2147483647LL + (long long )n2) - (long long )q2_back >= 0LL)) && ((3221225471LL + (long long )N) - (long long )n1 >= 0LL)) && ((3221225471LL + (long long )N) - (long long )n2 >= 0LL)) && ((4294967295LL + (long long )q1_front) - (long long )q2_front >= 0LL)) && ((4294967295LL + (long long )q1_front) - (long long )q2_back >= 0LL)) && ((4294967295LL + (long long )q1_back) - (long long )q1_front >= 0LL)) && ((4294967295LL + (long long )q1_back) - (long long )q2_front >= 0LL)) && ((4294967295LL + (long long )q1_back) - (long long )q2_back >= 0LL)) && ((4294967295LL + (long long )q2_back) - (long long )q2_front >= 0LL)) && ((4294967295LL + (long long )N) - (long long )q1_front >= 0LL)) && ((4294967295LL + (long long )N) - (long long )q1_back >= 0LL)) && ((4294967295LL + (long long )N) - (long long )q2_front >= 0LL)) && ((4294967295LL + (long long )N) - (long long )q2_back >= 0LL)) && ((2147483646LL - (long long )n1) - (long long )n2 >= 0LL)) && ((3221225470LL - (long long )n1) - (long long )q1_front >= 0LL)) && ((3221225470LL - (long long )n1) - (long long )q1_back >= 0LL)) && ((3221225470LL - (long long )n1) - (long long )q2_front >= 0LL)) && ((3221225470LL - (long long )n1) - (long long )q2_back >= 0LL)) && ((3221225470LL - (long long )n2) - (long long )q1_front >= 0LL)) && ((3221225470LL - (long long )n2) - (long long )q1_back >= 0LL)) && ((3221225470LL - (long long )n2) - (long long )q2_front >= 0LL)) && ((3221225470LL - (long long )n2) - (long long )q2_back >= 0LL)) && ((3221225470LL - (long long )N) - (long long )n1 >= 0LL)) && ((3221225470LL - (long long )N) - (long long )n2 >= 0LL)) && ((4294967294LL - (long long )q1_front) - (long long )q2_front >= 0LL)) && ((4294967294LL - (long long )q1_front) - (long long )q2_back >= 0LL)) && ((4294967294LL - (long long )q1_back) - (long long )q1_front >= 0LL)) && ((4294967294LL - (long long )q1_back) - (long long )q2_front >= 0LL)) && ((4294967294LL - (long long )q1_back) - (long long )q2_back >= 0LL)) && ((4294967294LL - (long long )q2_back) - (long long )q2_front >= 0LL)) && ((4294967294LL - (long long )N) - (long long )q1_front >= 0LL)) && ((4294967294LL - (long long )N) - (long long )q1_back >= 0LL)) && ((4294967294LL - (long long )N) - (long long )q2_front >= 0LL)) && ((4294967294LL - (long long )N) - (long long )q2_back >= 0LL) [2024-09-23 19:02:58,330 INFO L1541 ArrayList]: Location invariant before [L54-L54] ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((2147483648LL + (long long )n1) + (long long )q1_front >= 0LL) && ((2147483648LL + (long long )n1) + (long long )q1_back >= 0LL)) && ((2147483648LL + (long long )n1) + (long long )q2_front >= 0LL)) && ((2147483648LL + (long long )n1) + (long long )q2_back >= 0LL)) && ((2147483648LL + (long long )n2) + (long long )q1_front >= 0LL)) && ((2147483648LL + (long long )n2) + (long long )q1_back >= 0LL)) && ((2147483648LL + (long long )n2) + (long long )q2_front >= 0LL)) && ((2147483648LL + (long long )n2) + (long long )q2_back >= 0LL)) && ((2147483648LL + (long long )N) + (long long )n1 >= 0LL)) && ((2147483648LL + (long long )N) + (long long )n2 >= 0LL)) && ((1073741823LL - (long long )n1) + (long long )n2 >= 0LL)) && ((2147483647LL - (long long )N) + (long long )n1 >= 0LL)) && ((2147483647LL - (long long )N) + (long long )n2 >= 0LL)) && ((3221225471LL - (long long )n1) + (long long )q1_front >= 0LL)) && ((3221225471LL - (long long )n1) + (long long )q1_back >= 0LL)) && ((3221225471LL - (long long )n1) + (long long )q2_front >= 0LL)) && ((3221225471LL - (long long )n1) + (long long )q2_back >= 0LL)) && ((3221225471LL - (long long )n2) + (long long )q1_front >= 0LL)) && ((3221225471LL - (long long )n2) + (long long )q1_back >= 0LL)) && ((3221225471LL - (long long )n2) + (long long )q2_front >= 0LL)) && ((3221225471LL - (long long )n2) + (long long )q2_back >= 0LL)) && ((4294967295LL - (long long )q1_front) + (long long )q2_front >= 0LL)) && ((4294967295LL - (long long )q1_front) + (long long )q2_back >= 0LL)) && ((4294967295LL - (long long )q1_back) + (long long )q1_front >= 0LL)) && ((4294967295LL - (long long )q1_back) + (long long )q2_front >= 0LL)) && ((4294967295LL - (long long )q1_back) + (long long )q2_back >= 0LL)) && ((4294967295LL - (long long )q2_back) + (long long )q2_front >= 0LL)) && ((long long )n1 + (long long )n2 >= 0LL)) && ((1073741823LL + (long long )n1) - (long long )n2 >= 0LL)) && ((2147483647LL + (long long )n1) - (long long )q1_front >= 0LL)) && ((2147483647LL + (long long )n1) - (long long )q1_back >= 0LL)) && ((2147483647LL + (long long )n1) - (long long )q2_front >= 0LL)) && ((2147483647LL + (long long )n1) - (long long )q2_back >= 0LL)) && ((2147483647LL + (long long )n2) - (long long )q1_front >= 0LL)) && ((2147483647LL + (long long )n2) - (long long )q1_back >= 0LL)) && ((2147483647LL + (long long )n2) - (long long )q2_front >= 0LL)) && ((2147483647LL + (long long )n2) - (long long )q2_back >= 0LL)) && ((3221225471LL + (long long )N) - (long long )n1 >= 0LL)) && ((3221225471LL + (long long )N) - (long long )n2 >= 0LL)) && ((4294967295LL + (long long )q1_front) - (long long )q2_front >= 0LL)) && ((4294967295LL + (long long )q1_front) - (long long )q2_back >= 0LL)) && ((4294967295LL + (long long )q1_back) - (long long )q1_front >= 0LL)) && ((4294967295LL + (long long )q1_back) - (long long )q2_front >= 0LL)) && ((4294967295LL + (long long )q1_back) - (long long )q2_back >= 0LL)) && ((4294967295LL + (long long )q2_back) - (long long )q2_front >= 0LL)) && ((4294967295LL + (long long )N) - (long long )q1_front >= 0LL)) && ((4294967295LL + (long long )N) - (long long )q1_back >= 0LL)) && ((4294967295LL + (long long )N) - (long long )q2_front >= 0LL)) && ((4294967295LL + (long long )N) - (long long )q2_back >= 0LL)) && ((2147483646LL - (long long )n1) - (long long )n2 >= 0LL)) && ((3221225470LL - (long long )n1) - (long long )q1_front >= 0LL)) && ((3221225470LL - (long long )n1) - (long long )q1_back >= 0LL)) && ((3221225470LL - (long long )n1) - (long long )q2_front >= 0LL)) && ((3221225470LL - (long long )n1) - (long long )q2_back >= 0LL)) && ((3221225470LL - (long long )n2) - (long long )q1_front >= 0LL)) && ((3221225470LL - (long long )n2) - (long long )q1_back >= 0LL)) && ((3221225470LL - (long long )n2) - (long long )q2_front >= 0LL)) && ((3221225470LL - (long long )n2) - (long long )q2_back >= 0LL)) && ((3221225470LL - (long long )N) - (long long )n1 >= 0LL)) && ((3221225470LL - (long long )N) - (long long )n2 >= 0LL)) && ((4294967294LL - (long long )q1_front) - (long long )q2_front >= 0LL)) && ((4294967294LL - (long long )q1_front) - (long long )q2_back >= 0LL)) && ((4294967294LL - (long long )q1_back) - (long long )q1_front >= 0LL)) && ((4294967294LL - (long long )q1_back) - (long long )q2_front >= 0LL)) && ((4294967294LL - (long long )q1_back) - (long long )q2_back >= 0LL)) && ((4294967294LL - (long long )q2_back) - (long long )q2_front >= 0LL)) && ((4294967294LL - (long long )N) - (long long )q1_front >= 0LL)) && ((4294967294LL - (long long )N) - (long long )q1_back >= 0LL)) && ((4294967294LL - (long long )N) - (long long )q2_front >= 0LL)) && ((4294967294LL - (long long )N) - (long long )q2_back >= 0LL) [2024-09-23 19:02:58,330 INFO L1541 ArrayList]: Location invariant before [L72-L72] ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((2147483648LL + (long long )n1) + (long long )q1_front >= 0LL) && ((2147483648LL + (long long )n1) + (long long )q1_back >= 0LL)) && ((2147483648LL + (long long )n1) + (long long )q2_front >= 0LL)) && ((2147483648LL + (long long )n1) + (long long )q2_back >= 0LL)) && ((2147483648LL + (long long )n2) + (long long )q1_front >= 0LL)) && ((2147483648LL + (long long )n2) + (long long )q1_back >= 0LL)) && ((2147483648LL + (long long )n2) + (long long )q2_front >= 0LL)) && ((2147483648LL + (long long )n2) + (long long )q2_back >= 0LL)) && ((2147483648LL + (long long )N) + (long long )n1 >= 0LL)) && ((2147483648LL + (long long )N) + (long long )n2 >= 0LL)) && ((1073741823LL - (long long )n1) + (long long )n2 >= 0LL)) && ((2147483647LL - (long long )N) + (long long )n1 >= 0LL)) && ((2147483647LL - (long long )N) + (long long )n2 >= 0LL)) && ((3221225471LL - (long long )n1) + (long long )q1_front >= 0LL)) && ((3221225471LL - (long long )n1) + (long long )q1_back >= 0LL)) && ((3221225471LL - (long long )n1) + (long long )q2_front >= 0LL)) && ((3221225471LL - (long long )n1) + (long long )q2_back >= 0LL)) && ((3221225471LL - (long long )n2) + (long long )q1_front >= 0LL)) && ((3221225471LL - (long long )n2) + (long long )q1_back >= 0LL)) && ((3221225471LL - (long long )n2) + (long long )q2_front >= 0LL)) && ((3221225471LL - (long long )n2) + (long long )q2_back >= 0LL)) && ((4294967295LL - (long long )q1_front) + (long long )q2_front >= 0LL)) && ((4294967295LL - (long long )q1_front) + (long long )q2_back >= 0LL)) && ((4294967295LL - (long long )q1_back) + (long long )q1_front >= 0LL)) && ((4294967295LL - (long long )q1_back) + (long long )q2_front >= 0LL)) && ((4294967295LL - (long long )q1_back) + (long long )q2_back >= 0LL)) && ((4294967295LL - (long long )q2_back) + (long long )q2_front >= 0LL)) && ((long long )n1 + (long long )n2 >= 0LL)) && ((1073741823LL + (long long )n1) - (long long )n2 >= 0LL)) && ((2147483647LL + (long long )n1) - (long long )q1_front >= 0LL)) && ((2147483647LL + (long long )n1) - (long long )q1_back >= 0LL)) && ((2147483647LL + (long long )n1) - (long long )q2_front >= 0LL)) && ((2147483647LL + (long long )n1) - (long long )q2_back >= 0LL)) && ((2147483647LL + (long long )n2) - (long long )q1_front >= 0LL)) && ((2147483647LL + (long long )n2) - (long long )q1_back >= 0LL)) && ((2147483647LL + (long long )n2) - (long long )q2_front >= 0LL)) && ((2147483647LL + (long long )n2) - (long long )q2_back >= 0LL)) && ((3221225471LL + (long long )N) - (long long )n1 >= 0LL)) && ((3221225471LL + (long long )N) - (long long )n2 >= 0LL)) && ((4294967295LL + (long long )q1_front) - (long long )q2_front >= 0LL)) && ((4294967295LL + (long long )q1_front) - (long long )q2_back >= 0LL)) && ((4294967295LL + (long long )q1_back) - (long long )q1_front >= 0LL)) && ((4294967295LL + (long long )q1_back) - (long long )q2_front >= 0LL)) && ((4294967295LL + (long long )q1_back) - (long long )q2_back >= 0LL)) && ((4294967295LL + (long long )q2_back) - (long long )q2_front >= 0LL)) && ((4294967295LL + (long long )N) - (long long )q1_front >= 0LL)) && ((4294967295LL + (long long )N) - (long long )q1_back >= 0LL)) && ((4294967295LL + (long long )N) - (long long )q2_front >= 0LL)) && ((4294967295LL + (long long )N) - (long long )q2_back >= 0LL)) && ((2147483646LL - (long long )n1) - (long long )n2 >= 0LL)) && ((3221225470LL - (long long )n1) - (long long )q1_front >= 0LL)) && ((3221225470LL - (long long )n1) - (long long )q1_back >= 0LL)) && ((3221225470LL - (long long )n1) - (long long )q2_front >= 0LL)) && ((3221225470LL - (long long )n1) - (long long )q2_back >= 0LL)) && ((3221225470LL - (long long )n2) - (long long )q1_front >= 0LL)) && ((3221225470LL - (long long )n2) - (long long )q1_back >= 0LL)) && ((3221225470LL - (long long )n2) - (long long )q2_front >= 0LL)) && ((3221225470LL - (long long )n2) - (long long )q2_back >= 0LL)) && ((3221225470LL - (long long )N) - (long long )n1 >= 0LL)) && ((3221225470LL - (long long )N) - (long long )n2 >= 0LL)) && ((4294967294LL - (long long )q1_front) - (long long )q2_front >= 0LL)) && ((4294967294LL - (long long )q1_front) - (long long )q2_back >= 0LL)) && ((4294967294LL - (long long )q1_back) - (long long )q1_front >= 0LL)) && ((4294967294LL - (long long )q1_back) - (long long )q2_front >= 0LL)) && ((4294967294LL - (long long )q1_back) - (long long )q2_back >= 0LL)) && ((4294967294LL - (long long )q2_back) - (long long )q2_front >= 0LL)) && ((4294967294LL - (long long )N) - (long long )q1_front >= 0LL)) && ((4294967294LL - (long long )N) - (long long )q1_back >= 0LL)) && ((4294967294LL - (long long )N) - (long long )q2_front >= 0LL)) && ((4294967294LL - (long long )N) - (long long )q2_back >= 0LL) [2024-09-23 19:02:58,331 INFO L1541 ArrayList]: Location invariant before [L67-L67] ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((2147483648LL + (long long )n1) + (long long )q1_front >= 0LL) && ((2147483648LL + (long long )n1) + (long long )q1_back >= 0LL)) && ((2147483648LL + (long long )n1) + (long long )q2_front >= 0LL)) && ((2147483648LL + (long long )n1) + (long long )q2_back >= 0LL)) && ((2147483648LL + (long long )n2) + (long long )q1_front >= 0LL)) && ((2147483648LL + (long long )n2) + (long long )q1_back >= 0LL)) && ((2147483648LL + (long long )n2) + (long long )q2_front >= 0LL)) && ((2147483648LL + (long long )n2) + (long long )q2_back >= 0LL)) && ((2147483648LL + (long long )N) + (long long )n1 >= 0LL)) && ((2147483648LL + (long long )N) + (long long )n2 >= 0LL)) && ((1073741823LL - (long long )n1) + (long long )n2 >= 0LL)) && ((2147483647LL - (long long )N) + (long long )n1 >= 0LL)) && ((2147483647LL - (long long )N) + (long long )n2 >= 0LL)) && ((3221225471LL - (long long )n1) + (long long )q1_front >= 0LL)) && ((3221225471LL - (long long )n1) + (long long )q1_back >= 0LL)) && ((3221225471LL - (long long )n1) + (long long )q2_front >= 0LL)) && ((3221225471LL - (long long )n1) + (long long )q2_back >= 0LL)) && ((3221225471LL - (long long )n2) + (long long )q1_front >= 0LL)) && ((3221225471LL - (long long )n2) + (long long )q1_back >= 0LL)) && ((3221225471LL - (long long )n2) + (long long )q2_front >= 0LL)) && ((3221225471LL - (long long )n2) + (long long )q2_back >= 0LL)) && ((4294967295LL - (long long )q1_front) + (long long )q2_front >= 0LL)) && ((4294967295LL - (long long )q1_front) + (long long )q2_back >= 0LL)) && ((4294967295LL - (long long )q1_back) + (long long )q1_front >= 0LL)) && ((4294967295LL - (long long )q1_back) + (long long )q2_front >= 0LL)) && ((4294967295LL - (long long )q1_back) + (long long )q2_back >= 0LL)) && ((4294967295LL - (long long )q2_back) + (long long )q2_front >= 0LL)) && ((long long )n1 + (long long )n2 >= 0LL)) && ((1073741823LL + (long long )n1) - (long long )n2 >= 0LL)) && ((2147483647LL + (long long )n1) - (long long )q1_front >= 0LL)) && ((2147483647LL + (long long )n1) - (long long )q1_back >= 0LL)) && ((2147483647LL + (long long )n1) - (long long )q2_front >= 0LL)) && ((2147483647LL + (long long )n1) - (long long )q2_back >= 0LL)) && ((2147483647LL + (long long )n2) - (long long )q1_front >= 0LL)) && ((2147483647LL + (long long )n2) - (long long )q1_back >= 0LL)) && ((2147483647LL + (long long )n2) - (long long )q2_front >= 0LL)) && ((2147483647LL + (long long )n2) - (long long )q2_back >= 0LL)) && ((3221225471LL + (long long )N) - (long long )n1 >= 0LL)) && ((3221225471LL + (long long )N) - (long long )n2 >= 0LL)) && ((4294967295LL + (long long )q1_front) - (long long )q2_front >= 0LL)) && ((4294967295LL + (long long )q1_front) - (long long )q2_back >= 0LL)) && ((4294967295LL + (long long )q1_back) - (long long )q1_front >= 0LL)) && ((4294967295LL + (long long )q1_back) - (long long )q2_front >= 0LL)) && ((4294967295LL + (long long )q1_back) - (long long )q2_back >= 0LL)) && ((4294967295LL + (long long )q2_back) - (long long )q2_front >= 0LL)) && ((4294967295LL + (long long )N) - (long long )q1_front >= 0LL)) && ((4294967295LL + (long long )N) - (long long )q1_back >= 0LL)) && ((4294967295LL + (long long )N) - (long long )q2_front >= 0LL)) && ((4294967295LL + (long long )N) - (long long )q2_back >= 0LL)) && ((2147483646LL - (long long )n1) - (long long )n2 >= 0LL)) && ((3221225470LL - (long long )n1) - (long long )q1_front >= 0LL)) && ((3221225470LL - (long long )n1) - (long long )q1_back >= 0LL)) && ((3221225470LL - (long long )n1) - (long long )q2_front >= 0LL)) && ((3221225470LL - (long long )n1) - (long long )q2_back >= 0LL)) && ((3221225470LL - (long long )n2) - (long long )q1_front >= 0LL)) && ((3221225470LL - (long long )n2) - (long long )q1_back >= 0LL)) && ((3221225470LL - (long long )n2) - (long long )q2_front >= 0LL)) && ((3221225470LL - (long long )n2) - (long long )q2_back >= 0LL)) && ((3221225470LL - (long long )N) - (long long )n1 >= 0LL)) && ((3221225470LL - (long long )N) - (long long )n2 >= 0LL)) && ((4294967294LL - (long long )q1_front) - (long long )q2_front >= 0LL)) && ((4294967294LL - (long long )q1_front) - (long long )q2_back >= 0LL)) && ((4294967294LL - (long long )q1_back) - (long long )q1_front >= 0LL)) && ((4294967294LL - (long long )q1_back) - (long long )q2_front >= 0LL)) && ((4294967294LL - (long long )q1_back) - (long long )q2_back >= 0LL)) && ((4294967294LL - (long long )q2_back) - (long long )q2_front >= 0LL)) && ((4294967294LL - (long long )N) - (long long )q1_front >= 0LL)) && ((4294967294LL - (long long )N) - (long long )q1_back >= 0LL)) && ((4294967294LL - (long long )N) - (long long )q2_front >= 0LL)) && ((4294967294LL - (long long )N) - (long long )q2_back >= 0LL) [2024-09-23 19:02:58,352 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-23 19:02:58,554 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-two-queue.wvr.c[3013,3026] [2024-09-23 19:02:58,570 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-23 19:02:58,592 INFO L200 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-09-23 19:02:58,828 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-two-queue.wvr.c[3013,3026] [2024-09-23 19:02:58,834 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-23 19:02:58,871 INFO L204 MainTranslator]: Completed translation [2024-09-23 19:02:58,871 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 07:02:58 WrapperNode [2024-09-23 19:02:58,872 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-23 19:02:58,873 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-23 19:02:58,873 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-23 19:02:58,873 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-23 19:02:58,879 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 07:02:58" (1/1) ... [2024-09-23 19:02:58,901 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 07:02:58" (1/1) ... [2024-09-23 19:02:58,940 INFO L138 Inliner]: procedures = 25, calls = 33, calls flagged for inlining = 13, calls inlined = 15, statements flattened = 199 [2024-09-23 19:02:58,940 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-23 19:02:58,941 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-23 19:02:58,941 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-23 19:02:58,941 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-23 19:02:58,953 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 07:02:58" (1/1) ... [2024-09-23 19:02:58,957 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 07:02:58" (1/1) ... [2024-09-23 19:02:58,965 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 07:02:58" (1/1) ... [2024-09-23 19:02:58,968 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 07:02:58" (1/1) ... [2024-09-23 19:02:59,004 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 07:02:58" (1/1) ... [2024-09-23 19:02:59,009 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 07:02:58" (1/1) ... [2024-09-23 19:02:59,013 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 07:02:58" (1/1) ... [2024-09-23 19:02:59,019 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 07:02:58" (1/1) ... [2024-09-23 19:02:59,029 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-23 19:02:59,031 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-23 19:02:59,032 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-23 19:02:59,032 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-23 19:02:59,032 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 07:02:58" (1/1) ... [2024-09-23 19:02:59,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-23 19:02:59,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 19:02:59,064 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) [2024-09-23 19:02:59,069 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 [2024-09-23 19:02:59,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-23 19:02:59,114 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-09-23 19:02:59,114 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-09-23 19:02:59,114 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-09-23 19:02:59,115 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-09-23 19:02:59,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-09-23 19:02:59,115 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-09-23 19:02:59,115 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-09-23 19:02:59,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-09-23 19:02:59,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-09-23 19:02:59,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-23 19:02:59,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-23 19:02:59,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-09-23 19:02:59,120 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-09-23 19:02:59,228 INFO L242 CfgBuilder]: Building ICFG [2024-09-23 19:02:59,230 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-23 19:03:01,053 INFO L287 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-09-23 19:03:01,053 INFO L291 CfgBuilder]: Performing block encoding [2024-09-23 19:03:01,480 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-23 19:03:01,480 INFO L318 CfgBuilder]: Removed 4 assume(true) statements. [2024-09-23 19:03:01,481 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.09 07:03:01 BoogieIcfgContainer [2024-09-23 19:03:01,481 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-23 19:03:01,482 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-23 19:03:01,483 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-23 19:03:01,485 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-23 19:03:01,486 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 23.09 07:02:56" (1/4) ... [2024-09-23 19:03:01,486 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1359001d and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 23.09 07:03:01, skipping insertion in model container [2024-09-23 19:03:01,486 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.09 07:02:58" (2/4) ... [2024-09-23 19:03:01,487 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1359001d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.09 07:03:01, skipping insertion in model container [2024-09-23 19:03:01,487 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 07:02:58" (3/4) ... [2024-09-23 19:03:01,487 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1359001d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.09 07:03:01, skipping insertion in model container [2024-09-23 19:03:01,487 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.09 07:03:01" (4/4) ... [2024-09-23 19:03:01,488 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-two-queue.wvr.c [2024-09-23 19:03:01,504 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-23 19:03:01,505 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2024-09-23 19:03:01,505 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-09-23 19:03:01,584 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-09-23 19:03:01,621 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-23 19:03:01,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-23 19:03:01,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 19:03:01,624 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) [2024-09-23 19:03:01,625 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 [2024-09-23 19:03:01,658 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-23 19:03:01,671 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread2Thread1of1ForFork1 ======== [2024-09-23 19:03:01,677 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;@2d16c48, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-23 19:03:01,678 INFO L337 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-09-23 19:03:05,000 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-23 19:03:05,003 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 19:03:05,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1005914229, now seen corresponding path program 1 times [2024-09-23 19:03:05,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-09-23 19:03:05,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1534924050] [2024-09-23 19:03:05,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 19:03:05,014 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 [2024-09-23 19:03:05,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-09-23 19:03:05,035 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) [2024-09-23 19:03:05,037 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 [2024-09-23 19:03:05,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 19:03:05,254 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-23 19:03:05,262 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-23 19:03:06,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 19:03:06,511 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-23 19:03:06,511 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-09-23 19:03:06,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1534924050] [2024-09-23 19:03:06,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1534924050] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-23 19:03:06,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-23 19:03:06,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-23 19:03:06,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173020737] [2024-09-23 19:03:06,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-23 19:03:06,517 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-23 19:03:06,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-09-23 19:03:06,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-23 19:03:06,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-23 19:03:06,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 19:03:06,542 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 19:03:06,542 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-23 19:03:06,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 19:03:07,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 19:03:07,402 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 [2024-09-23 19:03:07,596 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 [2024-09-23 19:03:07,597 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-23 19:03:07,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 19:03:07,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1460073604, now seen corresponding path program 1 times [2024-09-23 19:03:07,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-09-23 19:03:07,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [837266747] [2024-09-23 19:03:07,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 19:03:07,599 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 [2024-09-23 19:03:07,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-09-23 19:03:07,600 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) [2024-09-23 19:03:07,601 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 [2024-09-23 19:03:07,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 19:03:07,787 INFO L262 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-09-23 19:03:07,790 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-23 19:03:09,045 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 19:03:09,045 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-23 19:04:32,593 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 19:04:32,593 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-09-23 19:04:32,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [837266747] [2024-09-23 19:04:32,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [837266747] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-23 19:04:32,593 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-23 19:04:32,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-09-23 19:04:32,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160193521] [2024-09-23 19:04:32,594 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-23 19:04:32,595 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-23 19:04:32,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-09-23 19:04:32,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-23 19:04:32,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=88, Unknown=2, NotChecked=0, Total=132 [2024-09-23 19:04:32,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 19:04:32,597 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 19:04:32,597 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 11 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-23 19:04:32,597 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 19:04:32,597 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 19:04:40,676 WARN L293 SmtUtils]: Spent 5.36s on a formula simplification. DAG size of input: 200 DAG size of output: 219 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-09-23 19:04:48,050 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-09-23 19:05:02,269 WARN L293 SmtUtils]: Spent 10.59s on a formula simplification. DAG size of input: 203 DAG size of output: 229 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-09-23 19:05:04,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-09-23 19:05:12,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 19:05:12,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-23 19:05:12,286 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-09-23 19:05:12,480 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 [2024-09-23 19:05:12,480 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-23 19:05:12,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 19:05:12,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1729565749, now seen corresponding path program 2 times [2024-09-23 19:05:12,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-09-23 19:05:12,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1748464991] [2024-09-23 19:05:12,482 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-23 19:05:12,482 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 [2024-09-23 19:05:12,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-09-23 19:05:12,484 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-09-23 19:05:12,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-09-23 19:05:12,649 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-09-23 19:05:12,649 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-23 19:05:12,656 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-23 19:05:12,659 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-23 19:05:14,363 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-09-23 19:05:14,364 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-23 19:05:14,364 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-09-23 19:05:14,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1748464991] [2024-09-23 19:05:14,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1748464991] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-23 19:05:14,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-23 19:05:14,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-23 19:05:14,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522483941] [2024-09-23 19:05:14,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-23 19:05:14,365 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-23 19:05:14,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-09-23 19:05:14,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-23 19:05:14,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-23 19:05:14,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 19:05:14,366 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 19:05:14,366 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-23 19:05:14,366 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 19:05:14,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-09-23 19:05:14,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 19:05:15,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 19:05:15,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-23 19:05:15,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-23 19:05:15,261 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2024-09-23 19:05:15,455 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-09-23 19:05:15,456 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-23 19:05:15,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 19:05:15,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1524522464, now seen corresponding path program 1 times [2024-09-23 19:05:15,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-09-23 19:05:15,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [853252648] [2024-09-23 19:05:15,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 19:05:15,458 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 [2024-09-23 19:05:15,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-09-23 19:05:15,460 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) [2024-09-23 19:05:15,463 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 [2024-09-23 19:05:15,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 19:05:15,662 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-09-23 19:05:15,664 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-23 19:05:18,117 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 19:05:18,117 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-23 19:06:49,083 WARN L293 SmtUtils]: Spent 5.29s on a formula simplification that was a NOOP. DAG size: 178 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-09-23 19:07:05,425 WARN L293 SmtUtils]: Spent 5.27s on a formula simplification that was a NOOP. DAG size: 182 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-09-23 19:07:45,626 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 19:07:45,627 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-09-23 19:07:45,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [853252648] [2024-09-23 19:07:45,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [853252648] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-23 19:07:45,627 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-23 19:07:45,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2024-09-23 19:07:45,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497382752] [2024-09-23 19:07:45,627 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-23 19:07:45,628 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-09-23 19:07:45,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-09-23 19:07:45,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-09-23 19:07:45,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=274, Unknown=1, NotChecked=0, Total=380 [2024-09-23 19:07:45,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 19:07:45,629 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 19:07:45,629 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 1.7) internal successors, (34), 19 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-23 19:07:45,629 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 19:07:45,629 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-09-23 19:07:45,629 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-23 19:07:45,629 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 19:07:55,920 WARN L293 SmtUtils]: Spent 5.69s on a formula simplification. DAG size of input: 174 DAG size of output: 186 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-09-23 19:08:10,519 WARN L293 SmtUtils]: Spent 6.46s on a formula simplification that was a NOOP. DAG size: 144 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-09-23 19:08:21,193 WARN L293 SmtUtils]: Spent 5.38s on a formula simplification that was a NOOP. DAG size: 139 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-09-23 19:08:23,469 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 [1] Killed by 15