./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/test-hard1.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-08-20_10-08-36.files/mutex-meet-local/test-hard1.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version da67795f 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/test-hard1.wvr.c ./goblint.2024-08-20_10-08-36.files/mutex-meet-local/test-hard1.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.dk.goblint-eval-da67795-m [2024-08-27 10:56:24,206 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-27 10:56:24,264 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-08-27 10:56:24,268 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-27 10:56:24,269 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-27 10:56:24,294 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-27 10:56:24,295 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-27 10:56:24,295 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-27 10:56:24,296 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-27 10:56:24,296 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-27 10:56:24,297 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-27 10:56:24,297 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-27 10:56:24,298 INFO L153 SettingsManager]: * Use SBE=true [2024-08-27 10:56:24,298 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-27 10:56:24,299 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-27 10:56:24,300 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-27 10:56:24,300 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-27 10:56:24,300 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-27 10:56:24,300 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-27 10:56:24,301 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-27 10:56:24,301 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-27 10:56:24,303 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-27 10:56:24,304 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-27 10:56:24,304 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-27 10:56:24,304 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-27 10:56:24,304 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-27 10:56:24,304 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-27 10:56:24,305 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-27 10:56:24,305 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-27 10:56:24,305 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-27 10:56:24,305 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-27 10:56:24,305 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-27 10:56:24,305 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-27 10:56:24,306 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-27 10:56:24,306 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-27 10:56:24,306 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-08-27 10:56:24,306 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-27 10:56:24,307 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-27 10:56:24,307 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-08-27 10:56:24,307 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-27 10:56:24,308 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-08-27 10:56:24,308 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-08-27 10:56:24,308 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-08-27 10:56:24,483 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-27 10:56:24,509 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-27 10:56:24,512 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-27 10:56:24,513 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-27 10:56:24,514 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-27 10:56:24,515 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-08-20_10-08-36.files/mutex-meet-local/test-hard1.wvr.yml/witness.yml [2024-08-27 10:56:24,640 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-27 10:56:24,640 INFO L274 PluginConnector]: CDTParser initialized [2024-08-27 10:56:24,640 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/test-hard1.wvr.c [2024-08-27 10:56:25,907 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-27 10:56:26,101 INFO L384 CDTParser]: Found 1 translation units. [2024-08-27 10:56:26,102 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-hard1.wvr.c [2024-08-27 10:56:26,107 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/94c7cb315/b8a9c66ed6a9419c84b4bafb843ef6d7/FLAG5f8911c3e [2024-08-27 10:56:26,117 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/94c7cb315/b8a9c66ed6a9419c84b4bafb843ef6d7 [2024-08-27 10:56:26,118 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-27 10:56:26,119 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-08-27 10:56:26,119 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-27 10:56:26,120 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-27 10:56:26,127 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-27 10:56:26,128 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.08 10:56:24" (1/2) ... [2024-08-27 10:56:26,129 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b4c733c and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.08 10:56:26, skipping insertion in model container [2024-08-27 10:56:26,129 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.08 10:56:24" (1/2) ... [2024-08-27 10:56:26,130 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3e128a6b and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.08 10:56:26, skipping insertion in model container [2024-08-27 10:56:26,130 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 10:56:26" (2/2) ... [2024-08-27 10:56:26,131 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b4c733c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:56:26, skipping insertion in model container [2024-08-27 10:56:26,131 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 10:56:26" (2/2) ... [2024-08-27 10:56:26,131 INFO L85 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-08-27 10:56:26,160 INFO L99 nessWitnessExtractor]: Found the following entries in the witness: [2024-08-27 10:56:26,164 INFO L1541 ArrayList]: Location invariant before [L73-L73] (((((((2147483648LL + (long long )m) + (long long )n1 >= 0LL) && ((2147483648LL + (long long )m) + (long long )n2 >= 0LL)) && ((4294967296LL + (long long )n1) + (long long )n2 >= 0LL)) && ((4294967295LL - (long long )n1) + (long long )n2 >= 0LL)) && ((6442450943LL - (long long )m) + (long long )n1 >= 0LL)) && ((6442450943LL - (long long )m) + (long long )n2 >= 0LL)) && ((4294967295LL + (long long )n1) - (long long )n2 >= 0LL) [2024-08-27 10:56:26,164 INFO L1541 ArrayList]: Location invariant before [L63-L63] (((((((2147483648LL + (long long )m) + (long long )n1 >= 0LL) && ((2147483648LL + (long long )m) + (long long )n2 >= 0LL)) && ((4294967296LL + (long long )n1) + (long long )n2 >= 0LL)) && ((4294967295LL - (long long )n1) + (long long )n2 >= 0LL)) && ((6442450943LL - (long long )m) + (long long )n1 >= 0LL)) && ((6442450943LL - (long long )m) + (long long )n2 >= 0LL)) && ((4294967295LL + (long long )n1) - (long long )n2 >= 0LL) [2024-08-27 10:56:26,165 INFO L1541 ArrayList]: Location invariant before [L105-L108] (((((((2147483648LL + (long long )m) + (long long )n1 >= 0LL) && ((2147483648LL + (long long )m) + (long long )n2 >= 0LL)) && ((4294967296LL + (long long )n1) + (long long )n2 >= 0LL)) && ((4294967295LL - (long long )n1) + (long long )n2 >= 0LL)) && ((6442450943LL - (long long )m) + (long long )n1 >= 0LL)) && ((6442450943LL - (long long )m) + (long long )n2 >= 0LL)) && ((4294967295LL + (long long )n1) - (long long )n2 >= 0LL) [2024-08-27 10:56:26,165 INFO L1541 ArrayList]: Location invariant before [L44-L44] (((((((2147483648LL + (long long )m) + (long long )n1 >= 0LL) && ((2147483648LL + (long long )m) + (long long )n2 >= 0LL)) && ((4294967296LL + (long long )n1) + (long long )n2 >= 0LL)) && ((4294967295LL - (long long )n1) + (long long )n2 >= 0LL)) && ((6442450943LL - (long long )m) + (long long )n1 >= 0LL)) && ((6442450943LL - (long long )m) + (long long )n2 >= 0LL)) && ((4294967295LL + (long long )n1) - (long long )n2 >= 0LL) [2024-08-27 10:56:26,165 INFO L1541 ArrayList]: Location invariant before [L86-L89] (((((((2147483648LL + (long long )m) + (long long )n1 >= 0LL) && ((2147483648LL + (long long )m) + (long long )n2 >= 0LL)) && ((4294967296LL + (long long )n1) + (long long )n2 >= 0LL)) && ((4294967295LL - (long long )n1) + (long long )n2 >= 0LL)) && ((6442450943LL - (long long )m) + (long long )n1 >= 0LL)) && ((6442450943LL - (long long )m) + (long long )n2 >= 0LL)) && ((4294967295LL + (long long )n1) - (long long )n2 >= 0LL) [2024-08-27 10:56:26,165 INFO L1541 ArrayList]: Location invariant before [L48-L51] (((((((2147483648LL + (long long )m) + (long long )n1 >= 0LL) && ((2147483648LL + (long long )m) + (long long )n2 >= 0LL)) && ((4294967296LL + (long long )n1) + (long long )n2 >= 0LL)) && ((4294967295LL - (long long )n1) + (long long )n2 >= 0LL)) && ((6442450943LL - (long long )m) + (long long )n1 >= 0LL)) && ((6442450943LL - (long long )m) + (long long )n2 >= 0LL)) && ((4294967295LL + (long long )n1) - (long long )n2 >= 0LL) [2024-08-27 10:56:26,165 INFO L1541 ArrayList]: Location invariant before [L111-L111] (((((((2147483648LL + (long long )m) + (long long )n1 >= 0LL) && ((2147483648LL + (long long )m) + (long long )n2 >= 0LL)) && ((4294967296LL + (long long )n1) + (long long )n2 >= 0LL)) && ((4294967295LL - (long long )n1) + (long long )n2 >= 0LL)) && ((6442450943LL - (long long )m) + (long long )n1 >= 0LL)) && ((6442450943LL - (long long )m) + (long long )n2 >= 0LL)) && ((4294967295LL + (long long )n1) - (long long )n2 >= 0LL) [2024-08-27 10:56:26,165 INFO L1541 ArrayList]: Location invariant before [L92-L92] (((((((2147483648LL + (long long )m) + (long long )n1 >= 0LL) && ((2147483648LL + (long long )m) + (long long )n2 >= 0LL)) && ((4294967296LL + (long long )n1) + (long long )n2 >= 0LL)) && ((4294967295LL - (long long )n1) + (long long )n2 >= 0LL)) && ((6442450943LL - (long long )m) + (long long )n1 >= 0LL)) && ((6442450943LL - (long long )m) + (long long )n2 >= 0LL)) && ((4294967295LL + (long long )n1) - (long long )n2 >= 0LL) [2024-08-27 10:56:26,165 INFO L1541 ArrayList]: Location invariant before [L82-L82] (((((((2147483648LL + (long long )m) + (long long )n1 >= 0LL) && ((2147483648LL + (long long )m) + (long long )n2 >= 0LL)) && ((4294967296LL + (long long )n1) + (long long )n2 >= 0LL)) && ((4294967295LL - (long long )n1) + (long long )n2 >= 0LL)) && ((6442450943LL - (long long )m) + (long long )n1 >= 0LL)) && ((6442450943LL - (long long )m) + (long long )n2 >= 0LL)) && ((4294967295LL + (long long )n1) - (long long )n2 >= 0LL) [2024-08-27 10:56:26,165 INFO L1541 ArrayList]: Location invariant before [L101-L101] (((((((2147483648LL + (long long )m) + (long long )n1 >= 0LL) && ((2147483648LL + (long long )m) + (long long )n2 >= 0LL)) && ((4294967296LL + (long long )n1) + (long long )n2 >= 0LL)) && ((4294967295LL - (long long )n1) + (long long )n2 >= 0LL)) && ((6442450943LL - (long long )m) + (long long )n1 >= 0LL)) && ((6442450943LL - (long long )m) + (long long )n2 >= 0LL)) && ((4294967295LL + (long long )n1) - (long long )n2 >= 0LL) [2024-08-27 10:56:26,165 INFO L1541 ArrayList]: Location invariant before [L54-L54] (((((((2147483648LL + (long long )m) + (long long )n1 >= 0LL) && ((2147483648LL + (long long )m) + (long long )n2 >= 0LL)) && ((4294967296LL + (long long )n1) + (long long )n2 >= 0LL)) && ((4294967295LL - (long long )n1) + (long long )n2 >= 0LL)) && ((6442450943LL - (long long )m) + (long long )n1 >= 0LL)) && ((6442450943LL - (long long )m) + (long long )n2 >= 0LL)) && ((4294967295LL + (long long )n1) - (long long )n2 >= 0LL) [2024-08-27 10:56:26,165 INFO L1541 ArrayList]: Location invariant before [L67-L70] (((((((2147483648LL + (long long )m) + (long long )n1 >= 0LL) && ((2147483648LL + (long long )m) + (long long )n2 >= 0LL)) && ((4294967296LL + (long long )n1) + (long long )n2 >= 0LL)) && ((4294967295LL - (long long )n1) + (long long )n2 >= 0LL)) && ((6442450943LL - (long long )m) + (long long )n1 >= 0LL)) && ((6442450943LL - (long long )m) + (long long )n2 >= 0LL)) && ((4294967295LL + (long long )n1) - (long long )n2 >= 0LL) [2024-08-27 10:56:26,188 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-08-27 10:56:26,309 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-hard1.wvr.c[3425,3438] [2024-08-27 10:56:26,312 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-27 10:56:26,342 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-08-27 10:56:26,426 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-hard1.wvr.c[3425,3438] [2024-08-27 10:56:26,429 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-27 10:56:26,441 INFO L206 MainTranslator]: Completed translation [2024-08-27 10:56:26,442 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:56:26 WrapperNode [2024-08-27 10:56:26,442 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-27 10:56:26,443 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-08-27 10:56:26,443 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-08-27 10:56:26,443 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-08-27 10:56:26,448 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:56:26" (1/1) ... [2024-08-27 10:56:26,459 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:56:26" (1/1) ... [2024-08-27 10:56:26,481 INFO L138 Inliner]: procedures = 23, calls = 36, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 73 [2024-08-27 10:56:26,483 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-08-27 10:56:26,483 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-27 10:56:26,484 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-27 10:56:26,484 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-27 10:56:26,490 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:56:26" (1/1) ... [2024-08-27 10:56:26,491 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:56:26" (1/1) ... [2024-08-27 10:56:26,493 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:56:26" (1/1) ... [2024-08-27 10:56:26,494 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:56:26" (1/1) ... [2024-08-27 10:56:26,503 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:56:26" (1/1) ... [2024-08-27 10:56:26,511 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:56:26" (1/1) ... [2024-08-27 10:56:26,512 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:56:26" (1/1) ... [2024-08-27 10:56:26,513 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:56:26" (1/1) ... [2024-08-27 10:56:26,515 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-27 10:56:26,516 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-08-27 10:56:26,516 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-08-27 10:56:26,516 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-08-27 10:56:26,517 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:56:26" (1/1) ... [2024-08-27 10:56:26,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-27 10:56:26,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 10:56:26,547 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) [2024-08-27 10:56:26,557 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 [2024-08-27 10:56:26,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-27 10:56:26,593 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-08-27 10:56:26,593 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-08-27 10:56:26,593 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-08-27 10:56:26,593 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-08-27 10:56:26,594 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-08-27 10:56:26,594 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-08-27 10:56:26,594 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-08-27 10:56:26,594 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-08-27 10:56:26,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-08-27 10:56:26,594 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-08-27 10:56:26,595 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-08-27 10:56:26,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-27 10:56:26,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-27 10:56:26,596 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-08-27 10:56:26,670 INFO L242 CfgBuilder]: Building ICFG [2024-08-27 10:56:26,672 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-27 10:56:26,940 INFO L287 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-08-27 10:56:26,940 INFO L291 CfgBuilder]: Performing block encoding [2024-08-27 10:56:27,070 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-27 10:56:27,071 INFO L318 CfgBuilder]: Removed 4 assume(true) statements. [2024-08-27 10:56:27,071 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 10:56:27 BoogieIcfgContainer [2024-08-27 10:56:27,071 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-08-27 10:56:27,073 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-27 10:56:27,073 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-27 10:56:27,079 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-27 10:56:27,080 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.08 10:56:24" (1/4) ... [2024-08-27 10:56:27,080 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2234a280 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.08 10:56:27, skipping insertion in model container [2024-08-27 10:56:27,080 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 10:56:26" (2/4) ... [2024-08-27 10:56:27,080 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2234a280 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 10:56:27, skipping insertion in model container [2024-08-27 10:56:27,081 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:56:26" (3/4) ... [2024-08-27 10:56:27,081 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2234a280 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 10:56:27, skipping insertion in model container [2024-08-27 10:56:27,081 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 10:56:27" (4/4) ... [2024-08-27 10:56:27,082 INFO L112 eAbstractionObserver]: Analyzing ICFG test-hard1.wvr.c [2024-08-27 10:56:27,106 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-27 10:56:27,106 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2024-08-27 10:56:27,106 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-08-27 10:56:27,169 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-08-27 10:56:27,204 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-27 10:56:27,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-27 10:56:27,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 10:56:27,210 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) [2024-08-27 10:56:27,211 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 [2024-08-27 10:56:27,241 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-27 10:56:27,251 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread2Thread1of1ForFork3 ======== [2024-08-27 10:56:27,256 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@76bae7dc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-27 10:56:27,256 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-08-27 10:56:27,390 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-08-27 10:56:27,395 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 10:56:27,395 INFO L85 PathProgramCache]: Analyzing trace with hash -155245180, now seen corresponding path program 1 times [2024-08-27 10:56:27,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 10:56:27,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693449552] [2024-08-27 10:56:27,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 10:56:27,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 10:56:27,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 10:56:27,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-27 10:56:27,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 10:56:27,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693449552] [2024-08-27 10:56:27,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693449552] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 10:56:27,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 10:56:27,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-08-27 10:56:27,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000104097] [2024-08-27 10:56:27,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 10:56:27,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-27 10:56:27,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 10:56:27,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-27 10:56:27,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-27 10:56:27,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 10:56:27,846 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 10:56:27,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 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) [2024-08-27 10:56:27,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 10:56:28,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 10:56:28,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-27 10:56:28,087 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-08-27 10:56:28,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 10:56:28,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1324507165, now seen corresponding path program 1 times [2024-08-27 10:56:28,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 10:56:28,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007443204] [2024-08-27 10:56:28,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 10:56:28,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 10:56:28,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 10:56:28,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-27 10:56:28,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 10:56:28,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007443204] [2024-08-27 10:56:28,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007443204] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 10:56:28,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 10:56:28,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-08-27 10:56:28,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691746855] [2024-08-27 10:56:28,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 10:56:28,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-08-27 10:56:28,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 10:56:28,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-08-27 10:56:28,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-08-27 10:56:28,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 10:56:28,583 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 10:56:28,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-27 10:56:28,584 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 10:56:28,584 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 10:56:28,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 10:56:28,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 10:56:28,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-08-27 10:56:28,741 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-08-27 10:56:28,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 10:56:28,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1889981133, now seen corresponding path program 1 times [2024-08-27 10:56:28,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 10:56:28,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074017402] [2024-08-27 10:56:28,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 10:56:28,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 10:56:28,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 10:56:29,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-27 10:56:29,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 10:56:29,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074017402] [2024-08-27 10:56:29,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074017402] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 10:56:29,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 10:56:29,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-08-27 10:56:29,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758433608] [2024-08-27 10:56:29,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 10:56:29,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-08-27 10:56:29,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 10:56:29,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-08-27 10:56:29,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-08-27 10:56:29,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 10:56:29,362 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 10:56:29,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-27 10:56:29,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 10:56:29,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-27 10:56:29,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 10:56:29,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 10:56:29,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 10:56:29,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-27 10:56:29,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-08-27 10:56:29,640 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-08-27 10:56:29,641 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 10:56:29,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1383527216, now seen corresponding path program 1 times [2024-08-27 10:56:29,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 10:56:29,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995900651] [2024-08-27 10:56:29,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 10:56:29,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 10:56:29,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 10:56:30,150 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-27 10:56:30,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 10:56:30,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995900651] [2024-08-27 10:56:30,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995900651] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-27 10:56:30,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [801367914] [2024-08-27 10:56:30,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 10:56:30,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-27 10:56:30,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 10:56:30,154 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) [2024-08-27 10:56:30,158 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-08-27 10:56:30,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 10:56:30,231 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 9 conjunts are in the unsatisfiable core [2024-08-27 10:56:30,235 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-27 10:56:30,754 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-27 10:56:30,754 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-08-27 10:56:30,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [801367914] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 10:56:30,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-08-27 10:56:30,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 12 [2024-08-27 10:56:30,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877929151] [2024-08-27 10:56:30,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 10:56:30,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-08-27 10:56:30,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 10:56:30,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-08-27 10:56:30,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-08-27 10:56:30,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 10:56:30,757 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 10:56:30,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-27 10:56:30,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 10:56:30,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-27 10:56:30,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-27 10:56:30,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 10:56:30,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 10:56:30,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 10:56:30,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-27 10:56:30,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 10:56:30,952 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-08-27 10:56:31,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-27 10:56:31,140 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-08-27 10:56:31,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 10:56:31,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1739673466, now seen corresponding path program 1 times [2024-08-27 10:56:31,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 10:56:31,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095508512] [2024-08-27 10:56:31,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 10:56:31,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 10:56:31,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 10:56:32,066 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-27 10:56:32,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 10:56:32,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095508512] [2024-08-27 10:56:32,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095508512] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-27 10:56:32,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [963686939] [2024-08-27 10:56:32,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 10:56:32,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-27 10:56:32,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 10:56:32,071 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) [2024-08-27 10:56:32,072 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-08-27 10:56:32,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 10:56:32,136 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 12 conjunts are in the unsatisfiable core [2024-08-27 10:56:32,138 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-27 10:56:32,701 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-27 10:56:32,701 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-08-27 10:56:32,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [963686939] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 10:56:32,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-08-27 10:56:32,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 15 [2024-08-27 10:56:32,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072457706] [2024-08-27 10:56:32,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 10:56:32,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-08-27 10:56:32,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 10:56:32,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-08-27 10:56:32,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2024-08-27 10:56:32,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 10:56:32,704 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 10:56:32,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 6 states have internal predecessors, (33), 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) [2024-08-27 10:56:32,704 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 10:56:32,704 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-27 10:56:32,705 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-27 10:56:32,705 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-27 10:56:32,705 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 10:56:32,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 10:56:32,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 10:56:32,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-27 10:56:32,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 10:56:32,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-27 10:56:32,868 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-08-27 10:56:33,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-27 10:56:33,057 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-08-27 10:56:33,057 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 10:56:33,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1876042863, now seen corresponding path program 1 times [2024-08-27 10:56:33,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 10:56:33,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344868135] [2024-08-27 10:56:33,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 10:56:33,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 10:56:33,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 10:56:33,614 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-27 10:56:33,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 10:56:33,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344868135] [2024-08-27 10:56:33,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344868135] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 10:56:33,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 10:56:33,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-08-27 10:56:33,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509302013] [2024-08-27 10:56:33,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 10:56:33,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-08-27 10:56:33,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 10:56:33,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-08-27 10:56:33,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-08-27 10:56:33,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 10:56:33,617 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 10:56:33,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.25) internal successors, (34), 9 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-27 10:56:33,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 10:56:33,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-27 10:56:33,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-27 10:56:33,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-27 10:56:33,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-27 10:56:33,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 10:56:33,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 10:56:33,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 10:56:33,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-27 10:56:33,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 10:56:33,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-27 10:56:33,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-27 10:56:33,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-08-27 10:56:33,896 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-08-27 10:56:33,897 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 10:56:33,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1972243679, now seen corresponding path program 1 times [2024-08-27 10:56:33,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 10:56:33,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353493490] [2024-08-27 10:56:33,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 10:56:33,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 10:56:33,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 10:56:34,747 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-27 10:56:34,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 10:56:34,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353493490] [2024-08-27 10:56:34,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353493490] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-27 10:56:34,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1690961456] [2024-08-27 10:56:34,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 10:56:34,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-27 10:56:34,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 10:56:34,749 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) [2024-08-27 10:56:34,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-08-27 10:56:34,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 10:56:34,822 INFO L262 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 14 conjunts are in the unsatisfiable core [2024-08-27 10:56:34,823 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-27 10:56:35,319 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-27 10:56:35,319 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-08-27 10:56:35,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1690961456] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 10:56:35,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-08-27 10:56:35,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 19 [2024-08-27 10:56:35,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284945704] [2024-08-27 10:56:35,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 10:56:35,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-08-27 10:56:35,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 10:56:35,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-08-27 10:56:35,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=347, Unknown=0, NotChecked=0, Total=420 [2024-08-27 10:56:35,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 10:56:35,322 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 10:56:35,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 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) [2024-08-27 10:56:35,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 10:56:35,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-27 10:56:35,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-27 10:56:35,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-27 10:56:35,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-27 10:56:35,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-27 10:56:35,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 10:56:35,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 10:56:35,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 10:56:35,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-27 10:56:35,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 10:56:35,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-27 10:56:35,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-27 10:56:35,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-27 10:56:35,577 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-08-27 10:56:35,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-27 10:56:35,765 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-08-27 10:56:35,765 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 10:56:35,766 INFO L85 PathProgramCache]: Analyzing trace with hash 7117580, now seen corresponding path program 1 times [2024-08-27 10:56:35,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 10:56:35,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329340545] [2024-08-27 10:56:35,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 10:56:35,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 10:56:35,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 10:56:38,358 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-27 10:56:38,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 10:56:38,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329340545] [2024-08-27 10:56:38,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329340545] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-27 10:56:38,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1922780852] [2024-08-27 10:56:38,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 10:56:38,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-27 10:56:38,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 10:56:38,364 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) [2024-08-27 10:56:38,365 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-08-27 10:56:38,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 10:56:38,443 INFO L262 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 16 conjunts are in the unsatisfiable core [2024-08-27 10:56:38,446 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-27 10:56:39,776 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-08-27 10:56:39,777 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-27 10:56:43,101 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 11 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-27 10:56:43,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1922780852] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-27 10:56:43,101 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-27 10:56:43,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 8, 12] total 41 [2024-08-27 10:56:43,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125086431] [2024-08-27 10:56:43,102 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-27 10:56:43,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-08-27 10:56:43,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 10:56:43,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-08-27 10:56:43,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=211, Invalid=1511, Unknown=0, NotChecked=0, Total=1722 [2024-08-27 10:56:43,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 10:56:43,104 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 10:56:43,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 3.0) internal successors, (126), 41 states have internal predecessors, (126), 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) [2024-08-27 10:56:43,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 10:56:43,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-27 10:56:43,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-27 10:56:43,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-27 10:56:43,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-27 10:56:43,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-27 10:56:43,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-27 10:56:43,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 10:56:48,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 10:56:48,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 10:56:48,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-27 10:56:48,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 10:56:48,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-27 10:56:48,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-27 10:56:48,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-27 10:56:48,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-08-27 10:56:48,451 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-08-27 10:56:48,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-08-27 10:56:48,642 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-08-27 10:56:48,642 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 10:56:48,642 INFO L85 PathProgramCache]: Analyzing trace with hash -440388020, now seen corresponding path program 1 times [2024-08-27 10:56:48,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 10:56:48,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106697656] [2024-08-27 10:56:48,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 10:56:48,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 10:56:48,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 10:56:50,795 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 1 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-27 10:56:50,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 10:56:50,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106697656] [2024-08-27 10:56:50,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106697656] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-27 10:56:50,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [250787501] [2024-08-27 10:56:50,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 10:56:50,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-27 10:56:50,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 10:56:50,797 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) [2024-08-27 10:56:50,798 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-08-27 10:56:50,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 10:56:50,873 INFO L262 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 11 conjunts are in the unsatisfiable core [2024-08-27 10:56:50,874 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-27 10:56:51,159 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-08-27 10:56:51,159 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-08-27 10:56:51,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [250787501] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 10:56:51,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-08-27 10:56:51,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [20] total 26 [2024-08-27 10:56:51,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564813397] [2024-08-27 10:56:51,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 10:56:51,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-08-27 10:56:51,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 10:56:51,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-08-27 10:56:51,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=567, Unknown=0, NotChecked=0, Total=650 [2024-08-27 10:56:51,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 10:56:51,162 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 10:56:51,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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) [2024-08-27 10:56:51,163 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 10:56:51,163 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-27 10:56:51,163 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-27 10:56:51,163 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-27 10:56:51,163 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-27 10:56:51,163 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-27 10:56:51,163 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-27 10:56:51,163 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2024-08-27 10:56:51,163 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 10:56:53,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 10:56:53,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 10:56:53,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-27 10:56:53,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 10:56:53,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-27 10:56:53,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-27 10:56:53,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-27 10:56:53,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-08-27 10:56:53,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-27 10:56:53,307 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-08-27 10:56:53,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-27 10:56:53,499 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-08-27 10:56:53,499 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 10:56:53,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1166047108, now seen corresponding path program 1 times [2024-08-27 10:56:53,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 10:56:53,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123427709] [2024-08-27 10:56:53,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 10:56:53,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 10:56:53,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 10:56:54,801 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 106 proven. 17 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-08-27 10:56:54,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 10:56:54,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123427709] [2024-08-27 10:56:54,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123427709] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-27 10:56:54,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [485261920] [2024-08-27 10:56:54,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 10:56:54,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-27 10:56:54,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 10:56:54,804 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-27 10:56:54,805 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-08-27 10:56:54,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 10:56:54,909 INFO L262 TraceCheckSpWp]: Trace formula consists of 563 conjuncts, 11 conjunts are in the unsatisfiable core [2024-08-27 10:56:54,911 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-27 10:56:55,182 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2024-08-27 10:56:55,183 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-08-27 10:56:55,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [485261920] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 10:56:55,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-08-27 10:56:55,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12] total 16 [2024-08-27 10:56:55,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022433666] [2024-08-27 10:56:55,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 10:56:55,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-08-27 10:56:55,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 10:56:55,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-08-27 10:56:55,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2024-08-27 10:56:55,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 10:56:55,184 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 10:56:55,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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) [2024-08-27 10:56:55,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 10:56:55,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-27 10:56:55,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-27 10:56:55,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-27 10:56:55,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-27 10:56:55,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-27 10:56:55,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-27 10:56:55,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2024-08-27 10:56:55,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-27 10:56:55,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 10:56:55,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 10:56:55,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 10:56:55,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-27 10:56:55,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 10:56:55,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-27 10:56:55,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-27 10:56:55,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-27 10:56:55,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-08-27 10:56:55,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-27 10:56:55,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-27 10:56:55,450 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-08-27 10:56:55,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-08-27 10:56:55,640 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-08-27 10:56:55,640 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 10:56:55,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1816402466, now seen corresponding path program 1 times [2024-08-27 10:56:55,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 10:56:55,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705543739] [2024-08-27 10:56:55,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 10:56:55,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 10:56:55,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 10:56:56,398 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 119 proven. 5 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-08-27 10:56:56,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 10:56:56,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705543739] [2024-08-27 10:56:56,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705543739] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-27 10:56:56,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [840497006] [2024-08-27 10:56:56,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 10:56:56,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-27 10:56:56,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 10:56:56,401 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) [2024-08-27 10:56:56,402 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-08-27 10:56:56,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 10:56:56,501 INFO L262 TraceCheckSpWp]: Trace formula consists of 579 conjuncts, 21 conjunts are in the unsatisfiable core [2024-08-27 10:56:56,504 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-27 10:56:56,881 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 115 proven. 12 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-08-27 10:56:56,881 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-27 10:56:57,605 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 113 proven. 14 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-08-27 10:56:57,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [840497006] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-27 10:56:57,608 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-27 10:56:57,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10, 13] total 23 [2024-08-27 10:56:57,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845467550] [2024-08-27 10:56:57,609 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-27 10:56:57,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-08-27 10:56:57,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 10:56:57,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-08-27 10:56:57,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2024-08-27 10:56:57,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 10:56:57,610 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 10:56:57,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.260869565217392) internal successors, (98), 23 states have internal predecessors, (98), 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) [2024-08-27 10:56:57,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 10:56:57,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-27 10:56:57,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-27 10:56:57,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-27 10:56:57,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-27 10:56:57,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-27 10:56:57,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-27 10:56:57,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2024-08-27 10:56:57,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-27 10:56:57,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-27 10:56:57,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 10:57:03,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 10:57:03,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 10:57:03,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-27 10:57:03,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 10:57:03,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-27 10:57:03,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-27 10:57:03,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-27 10:57:03,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-08-27 10:57:03,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-27 10:57:03,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-27 10:57:03,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-08-27 10:57:03,570 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-08-27 10:57:03,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-27 10:57:03,758 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-08-27 10:57:03,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 10:57:03,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1727723329, now seen corresponding path program 2 times [2024-08-27 10:57:03,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 10:57:03,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623652611] [2024-08-27 10:57:03,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 10:57:03,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 10:57:03,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 10:57:14,012 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 38 proven. 535 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-08-27 10:57:14,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 10:57:14,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623652611] [2024-08-27 10:57:14,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623652611] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-27 10:57:14,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1927974423] [2024-08-27 10:57:14,013 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-08-27 10:57:14,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-27 10:57:14,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 10:57:14,015 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) [2024-08-27 10:57:14,016 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-08-27 10:57:14,219 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-08-27 10:57:14,219 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-27 10:57:14,224 INFO L262 TraceCheckSpWp]: Trace formula consists of 859 conjuncts, 59 conjunts are in the unsatisfiable core [2024-08-27 10:57:14,230 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-27 10:57:21,169 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 38 proven. 456 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2024-08-27 10:57:21,169 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-27 10:57:24,380 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 189 proven. 392 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-27 10:57:24,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1927974423] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-27 10:57:24,380 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-27 10:57:24,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 14, 44] total 110 [2024-08-27 10:57:24,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947350278] [2024-08-27 10:57:24,381 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-27 10:57:24,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 111 states [2024-08-27 10:57:24,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 10:57:24,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 111 interpolants. [2024-08-27 10:57:24,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2629, Invalid=9581, Unknown=0, NotChecked=0, Total=12210 [2024-08-27 10:57:24,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 10:57:24,390 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 10:57:24,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 111 states, 111 states have (on average 3.189189189189189) internal successors, (354), 110 states have internal predecessors, (354), 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) [2024-08-27 10:57:24,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 10:57:24,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-27 10:57:24,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-27 10:57:24,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-27 10:57:24,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-27 10:57:24,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-27 10:57:24,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-27 10:57:24,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2024-08-27 10:57:24,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-27 10:57:24,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-27 10:57:24,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2024-08-27 10:57:24,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 10:57:53,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 10:57:53,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 10:57:53,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-27 10:57:53,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 10:57:53,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-27 10:57:53,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-27 10:57:53,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-27 10:57:53,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2024-08-27 10:57:53,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-27 10:57:53,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-27 10:57:53,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-08-27 10:57:53,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 184 states. [2024-08-27 10:57:53,481 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-08-27 10:57:53,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-27 10:57:53,672 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-08-27 10:57:53,672 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 10:57:53,672 INFO L85 PathProgramCache]: Analyzing trace with hash -83439583, now seen corresponding path program 1 times [2024-08-27 10:57:53,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 10:57:53,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170943836] [2024-08-27 10:57:53,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 10:57:53,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 10:57:53,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 10:57:55,942 INFO L134 CoverageAnalysis]: Checked inductivity of 2366 backedges. 304 proven. 4 refuted. 0 times theorem prover too weak. 2058 trivial. 0 not checked. [2024-08-27 10:57:55,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 10:57:55,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170943836] [2024-08-27 10:57:55,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170943836] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-27 10:57:55,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1743688401] [2024-08-27 10:57:55,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 10:57:55,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-27 10:57:55,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 10:57:55,944 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) [2024-08-27 10:57:55,945 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-08-27 10:57:56,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 10:57:56,169 INFO L262 TraceCheckSpWp]: Trace formula consists of 1571 conjuncts, 15 conjunts are in the unsatisfiable core [2024-08-27 10:57:56,173 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-27 10:57:56,571 INFO L134 CoverageAnalysis]: Checked inductivity of 2366 backedges. 308 proven. 0 refuted. 0 times theorem prover too weak. 2058 trivial. 0 not checked. [2024-08-27 10:57:56,571 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-08-27 10:57:56,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1743688401] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 10:57:56,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-08-27 10:57:56,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 16 [2024-08-27 10:57:56,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129321559] [2024-08-27 10:57:56,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 10:57:56,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-08-27 10:57:56,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 10:57:56,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-08-27 10:57:56,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2024-08-27 10:57:56,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 10:57:56,573 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 10:57:56,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 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) [2024-08-27 10:57:56,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 10:57:56,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-27 10:57:56,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-27 10:57:56,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-27 10:57:56,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-27 10:57:56,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-27 10:57:56,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-27 10:57:56,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2024-08-27 10:57:56,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-27 10:57:56,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-27 10:57:56,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2024-08-27 10:57:56,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 184 states. [2024-08-27 10:57:56,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 10:58:00,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 10:58:00,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 10:58:00,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-27 10:58:00,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 10:58:00,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-27 10:58:00,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-27 10:58:00,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-27 10:58:00,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2024-08-27 10:58:00,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-27 10:58:00,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-27 10:58:00,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-08-27 10:58:00,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 205 states. [2024-08-27 10:58:00,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-27 10:58:00,626 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-08-27 10:58:00,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-08-27 10:58:00,809 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-08-27 10:58:00,810 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 10:58:00,810 INFO L85 PathProgramCache]: Analyzing trace with hash 282503322, now seen corresponding path program 3 times [2024-08-27 10:58:00,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 10:58:00,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623746564] [2024-08-27 10:58:00,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 10:58:00,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 10:58:01,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 10:59:16,655 INFO L134 CoverageAnalysis]: Checked inductivity of 5182 backedges. 272 proven. 4751 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2024-08-27 10:59:16,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 10:59:16,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623746564] [2024-08-27 10:59:16,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623746564] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-27 10:59:16,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1096088840] [2024-08-27 10:59:16,656 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-08-27 10:59:16,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-27 10:59:16,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 10:59:16,661 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-27 10:59:16,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-08-27 10:59:16,902 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2024-08-27 10:59:16,902 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-27 10:59:16,905 INFO L262 TraceCheckSpWp]: Trace formula consists of 895 conjuncts, 48 conjunts are in the unsatisfiable core [2024-08-27 10:59:16,911 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-27 10:59:22,110 INFO L134 CoverageAnalysis]: Checked inductivity of 5182 backedges. 2517 proven. 118 refuted. 0 times theorem prover too weak. 2547 trivial. 0 not checked. [2024-08-27 10:59:22,110 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-27 10:59:25,528 INFO L134 CoverageAnalysis]: Checked inductivity of 5182 backedges. 2412 proven. 223 refuted. 0 times theorem prover too weak. 2547 trivial. 0 not checked. [2024-08-27 10:59:25,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1096088840] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-27 10:59:25,528 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-27 10:59:25,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [92, 37, 37] total 163 [2024-08-27 10:59:25,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280463859] [2024-08-27 10:59:25,529 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-27 10:59:25,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 163 states [2024-08-27 10:59:25,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 10:59:25,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 163 interpolants. [2024-08-27 10:59:25,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4227, Invalid=22179, Unknown=0, NotChecked=0, Total=26406 [2024-08-27 10:59:25,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 10:59:25,537 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 10:59:25,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 163 states, 163 states have (on average 3.263803680981595) internal successors, (532), 163 states have internal predecessors, (532), 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) [2024-08-27 10:59:25,538 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 10:59:25,538 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-27 10:59:25,538 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-27 10:59:25,538 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-27 10:59:25,539 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-27 10:59:25,539 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-27 10:59:25,539 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-27 10:59:25,539 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2024-08-27 10:59:25,539 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-27 10:59:25,539 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-27 10:59:25,539 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2024-08-27 10:59:25,539 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 205 states. [2024-08-27 10:59:25,539 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-27 10:59:25,539 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 11:00:01,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 11:00:01,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 11:00:01,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-27 11:00:01,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 11:00:01,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-27 11:00:01,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-27 11:00:01,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-27 11:00:01,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2024-08-27 11:00:01,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-27 11:00:01,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-27 11:00:01,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-08-27 11:00:01,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 215 states. [2024-08-27 11:00:01,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-27 11:00:01,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 159 states. [2024-08-27 11:00:01,251 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-08-27 11:00:01,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,12 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-27 11:00:01,437 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-08-27 11:00:01,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 11:00:01,438 INFO L85 PathProgramCache]: Analyzing trace with hash 733423916, now seen corresponding path program 4 times [2024-08-27 11:00:01,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 11:00:01,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222637369] [2024-08-27 11:00:01,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 11:00:01,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 11:00:02,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 11:02:25,390 INFO L134 CoverageAnalysis]: Checked inductivity of 8272 backedges. 146 proven. 7869 refuted. 0 times theorem prover too weak. 257 trivial. 0 not checked. [2024-08-27 11:02:25,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 11:02:25,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222637369] [2024-08-27 11:02:25,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222637369] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-27 11:02:25,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [938149922] [2024-08-27 11:02:25,394 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-08-27 11:02:25,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-27 11:02:25,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 11:02:25,399 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) [2024-08-27 11:02:25,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-08-27 11:02:26,133 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-08-27 11:02:26,133 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-27 11:02:26,148 INFO L262 TraceCheckSpWp]: Trace formula consists of 2821 conjuncts, 161 conjunts are in the unsatisfiable core [2024-08-27 11:02:26,163 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-27 11:03:33,762 INFO L134 CoverageAnalysis]: Checked inductivity of 8272 backedges. 192 proven. 7366 refuted. 0 times theorem prover too weak. 714 trivial. 0 not checked. [2024-08-27 11:03:33,762 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-27 11:03:54,703 INFO L134 CoverageAnalysis]: Checked inductivity of 8272 backedges. 1432 proven. 6840 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-27 11:03:54,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [938149922] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-27 11:03:54,703 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-27 11:03:54,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [131, 30, 154] total 313 [2024-08-27 11:03:54,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556792520] [2024-08-27 11:03:54,704 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-27 11:03:54,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 314 states [2024-08-27 11:03:54,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 11:03:54,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 314 interpolants. [2024-08-27 11:03:54,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19316, Invalid=78966, Unknown=0, NotChecked=0, Total=98282 [2024-08-27 11:03:54,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 11:03:54,737 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 11:03:54,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 314 states, 314 states have (on average 3.1178343949044587) internal successors, (979), 313 states have internal predecessors, (979), 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) [2024-08-27 11:03:54,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 11:03:54,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-27 11:03:54,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-27 11:03:54,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-27 11:03:54,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-27 11:03:54,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-27 11:03:54,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-27 11:03:54,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2024-08-27 11:03:54,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-27 11:03:54,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-27 11:03:54,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2024-08-27 11:03:54,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 215 states. [2024-08-27 11:03:54,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-27 11:03:54,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 159 states. [2024-08-27 11:03:54,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 11:05:29,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 11:05:29,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 11:05:29,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-27 11:05:29,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 11:05:29,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-27 11:05:29,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-27 11:05:29,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-27 11:05:29,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2024-08-27 11:05:29,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-27 11:05:29,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-27 11:05:29,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2024-08-27 11:05:29,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 219 states. [2024-08-27 11:05:29,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-27 11:05:29,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 173 states. [2024-08-27 11:05:29,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 233 states. [2024-08-27 11:05:29,598 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-08-27 11:05:29,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-08-27 11:05:29,780 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-08-27 11:05:29,780 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 11:05:29,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1679247779, now seen corresponding path program 1 times [2024-08-27 11:05:29,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 11:05:29,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023604023] [2024-08-27 11:05:29,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 11:05:29,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 11:05:30,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 11:05:46,664 INFO L134 CoverageAnalysis]: Checked inductivity of 952 backedges. 2 proven. 949 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-08-27 11:05:46,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 11:05:46,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023604023] [2024-08-27 11:05:46,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023604023] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-27 11:05:46,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [791910024] [2024-08-27 11:05:46,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 11:05:46,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-27 11:05:46,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 11:05:46,667 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) [2024-08-27 11:05:46,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-08-27 11:05:46,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 11:05:46,853 INFO L262 TraceCheckSpWp]: Trace formula consists of 1029 conjuncts, 35 conjunts are in the unsatisfiable core [2024-08-27 11:05:46,857 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-27 11:05:48,745 INFO L134 CoverageAnalysis]: Checked inductivity of 952 backedges. 934 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-27 11:05:48,745 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-27 11:05:50,710 INFO L134 CoverageAnalysis]: Checked inductivity of 952 backedges. 938 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-27 11:05:50,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [791910024] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-27 11:05:50,711 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-27 11:05:50,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [69, 26, 26] total 119 [2024-08-27 11:05:50,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158746117] [2024-08-27 11:05:50,712 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-27 11:05:50,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 120 states [2024-08-27 11:05:50,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 11:05:50,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 120 interpolants. [2024-08-27 11:05:50,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1416, Invalid=12864, Unknown=0, NotChecked=0, Total=14280 [2024-08-27 11:05:50,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 11:05:50,716 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 11:05:50,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 120 states, 120 states have (on average 4.2) internal successors, (504), 119 states have internal predecessors, (504), 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) [2024-08-27 11:05:50,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 11:05:50,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-27 11:05:50,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-27 11:05:50,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-27 11:05:50,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-27 11:05:50,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-27 11:05:50,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-27 11:05:50,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2024-08-27 11:05:50,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-27 11:05:50,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-27 11:05:50,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2024-08-27 11:05:50,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 219 states. [2024-08-27 11:05:50,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-27 11:05:50,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 173 states. [2024-08-27 11:05:50,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 233 states. [2024-08-27 11:05:50,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 11:06:41,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 11:06:41,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 11:06:41,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-27 11:06:41,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 11:06:41,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-27 11:06:41,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-27 11:06:41,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-27 11:06:41,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2024-08-27 11:06:41,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-27 11:06:41,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-27 11:06:41,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2024-08-27 11:06:41,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 221 states. [2024-08-27 11:06:41,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-27 11:06:41,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 177 states. [2024-08-27 11:06:41,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 242 states. [2024-08-27 11:06:41,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 187 states. [2024-08-27 11:06:41,222 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-08-27 11:06:41,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-08-27 11:06:41,408 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-08-27 11:06:41,408 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 11:06:41,408 INFO L85 PathProgramCache]: Analyzing trace with hash 374022176, now seen corresponding path program 2 times [2024-08-27 11:06:41,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 11:06:41,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801227200] [2024-08-27 11:06:41,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 11:06:41,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 11:06:42,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 11:07:47,219 INFO L134 CoverageAnalysis]: Checked inductivity of 4796 backedges. 263 proven. 4189 refuted. 0 times theorem prover too weak. 344 trivial. 0 not checked. [2024-08-27 11:07:47,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 11:07:47,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801227200] [2024-08-27 11:07:47,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801227200] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-27 11:07:47,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1067167865] [2024-08-27 11:07:47,220 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-08-27 11:07:47,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-27 11:07:47,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 11:07:47,222 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) [2024-08-27 11:07:47,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-08-27 11:07:47,651 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-08-27 11:07:47,651 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-27 11:07:47,660 INFO L262 TraceCheckSpWp]: Trace formula consists of 2171 conjuncts, 39 conjunts are in the unsatisfiable core [2024-08-27 11:07:47,665 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-27 11:07:51,007 INFO L134 CoverageAnalysis]: Checked inductivity of 4796 backedges. 2020 proven. 67 refuted. 0 times theorem prover too weak. 2709 trivial. 0 not checked. [2024-08-27 11:07:51,007 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-27 11:07:53,576 INFO L134 CoverageAnalysis]: Checked inductivity of 4796 backedges. 1785 proven. 302 refuted. 0 times theorem prover too weak. 2709 trivial. 0 not checked. [2024-08-27 11:07:53,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1067167865] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-27 11:07:53,577 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-27 11:07:53,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [87, 28, 28] total 141 [2024-08-27 11:07:53,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135542365] [2024-08-27 11:07:53,577 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-27 11:07:53,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 142 states [2024-08-27 11:07:53,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 11:07:53,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 142 interpolants. [2024-08-27 11:07:53,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2974, Invalid=17048, Unknown=0, NotChecked=0, Total=20022 [2024-08-27 11:07:53,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 11:07:53,581 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 11:07:53,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 142 states, 141 states have (on average 3.021276595744681) internal successors, (426), 142 states have internal predecessors, (426), 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) [2024-08-27 11:07:53,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 11:07:53,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-27 11:07:53,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-27 11:07:53,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-27 11:07:53,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-27 11:07:53,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-27 11:07:53,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-27 11:07:53,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2024-08-27 11:07:53,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-27 11:07:53,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-27 11:07:53,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2024-08-27 11:07:53,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 221 states. [2024-08-27 11:07:53,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-27 11:07:53,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 177 states. [2024-08-27 11:07:53,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 242 states. [2024-08-27 11:07:53,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 187 states. [2024-08-27 11:07:53,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 11:09:22,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 11:09:22,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 11:09:22,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-27 11:09:22,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 11:09:22,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-27 11:09:22,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-27 11:09:22,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-27 11:09:22,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2024-08-27 11:09:22,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-27 11:09:22,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-27 11:09:22,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2024-08-27 11:09:22,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 221 states. [2024-08-27 11:09:22,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-27 11:09:22,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 179 states. [2024-08-27 11:09:22,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 325 states. [2024-08-27 11:09:22,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 187 states. [2024-08-27 11:09:22,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 199 states. [2024-08-27 11:09:22,838 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-08-27 11:09:23,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-08-27 11:09:23,025 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-08-27 11:09:23,025 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 11:09:23,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1948956904, now seen corresponding path program 3 times [2024-08-27 11:09:23,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 11:09:23,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631278328] [2024-08-27 11:09:23,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 11:09:23,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 11:09:25,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Killed by 15