./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-divine/ring_1w1r-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b09c85b7 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/bin/ugemcutter-QpsTfqS70U/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/bin/ugemcutter-QpsTfqS70U/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/bin/ugemcutter-QpsTfqS70U/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/bin/ugemcutter-QpsTfqS70U/config/GemCutterReach.xml -i ../../sv-benchmarks/c/pthread-divine/ring_1w1r-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/bin/ugemcutter-QpsTfqS70U/config/svcomp-DataRace-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/bin/ugemcutter-QpsTfqS70U --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3a956b76a4ba98ce13df4d83ef2fb7ffa0973225ecb152c14bcfbb55b6546601 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b09c85b [2022-11-08 07:41:59,347 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-08 07:41:59,349 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-08 07:41:59,378 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-08 07:41:59,378 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-08 07:41:59,380 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-08 07:41:59,381 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-08 07:41:59,384 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-08 07:41:59,386 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-08 07:41:59,387 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-08 07:41:59,388 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-08 07:41:59,390 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-08 07:41:59,390 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-08 07:41:59,392 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-08 07:41:59,393 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-08 07:41:59,394 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-08 07:41:59,395 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-08 07:41:59,396 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-08 07:41:59,398 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-08 07:41:59,400 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-08 07:41:59,402 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-08 07:41:59,404 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-08 07:41:59,405 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-08 07:41:59,406 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-08 07:41:59,415 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-08 07:41:59,423 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-08 07:41:59,424 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-08 07:41:59,425 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-08 07:41:59,426 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-08 07:41:59,427 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-08 07:41:59,429 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-08 07:41:59,430 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-08 07:41:59,432 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-08 07:41:59,433 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-08 07:41:59,435 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-08 07:41:59,436 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-08 07:41:59,437 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-08 07:41:59,438 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-08 07:41:59,438 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-08 07:41:59,439 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-08 07:41:59,440 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-08 07:41:59,441 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/bin/ugemcutter-QpsTfqS70U/config/svcomp-DataRace-32bit-GemCutter_Default.epf [2022-11-08 07:41:59,482 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-08 07:41:59,482 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-08 07:41:59,483 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-08 07:41:59,483 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-08 07:41:59,484 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-08 07:41:59,485 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-08 07:41:59,485 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-08 07:41:59,486 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-08 07:41:59,486 INFO L138 SettingsManager]: * Use SBE=true [2022-11-08 07:41:59,486 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-08 07:41:59,488 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-08 07:41:59,488 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-08 07:41:59,488 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-08 07:41:59,489 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-08 07:41:59,489 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-08 07:41:59,489 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-08 07:41:59,489 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-08 07:41:59,490 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-08 07:41:59,490 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-08 07:41:59,490 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-08 07:41:59,490 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-08 07:41:59,491 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-08 07:41:59,491 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-08 07:41:59,491 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-08 07:41:59,492 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-08 07:41:59,492 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-11-08 07:41:59,492 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-08 07:41:59,492 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-08 07:41:59,493 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-08 07:41:59,493 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-08 07:41:59,493 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-08 07:41:59,494 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-08 07:41:59,494 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2022-11-08 07:41:59,494 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-08 07:41:59,495 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-08 07:41:59,495 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-11-08 07:41:59,495 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-08 07:41:59,495 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-11-08 07:41:59,496 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-11-08 07:41:59,496 INFO L138 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/bin/ugemcutter-QpsTfqS70U/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/bin/ugemcutter-QpsTfqS70U Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a956b76a4ba98ce13df4d83ef2fb7ffa0973225ecb152c14bcfbb55b6546601 [2022-11-08 07:41:59,858 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-08 07:41:59,890 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-08 07:41:59,893 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-08 07:41:59,894 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-08 07:41:59,895 INFO L275 PluginConnector]: CDTParser initialized [2022-11-08 07:41:59,896 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/bin/ugemcutter-QpsTfqS70U/../../sv-benchmarks/c/pthread-divine/ring_1w1r-1.i [2022-11-08 07:41:59,970 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/bin/ugemcutter-QpsTfqS70U/data/68b9293d3/9d84b256b27b4c568a0e68547d7b18e5/FLAG9d2cf8265 [2022-11-08 07:42:00,585 INFO L306 CDTParser]: Found 1 translation units. [2022-11-08 07:42:00,585 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i [2022-11-08 07:42:00,607 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/bin/ugemcutter-QpsTfqS70U/data/68b9293d3/9d84b256b27b4c568a0e68547d7b18e5/FLAG9d2cf8265 [2022-11-08 07:42:00,855 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/bin/ugemcutter-QpsTfqS70U/data/68b9293d3/9d84b256b27b4c568a0e68547d7b18e5 [2022-11-08 07:42:00,857 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-08 07:42:00,859 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-08 07:42:00,861 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-08 07:42:00,861 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-08 07:42:00,872 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-08 07:42:00,873 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:42:00" (1/1) ... [2022-11-08 07:42:00,875 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dfa0364 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:42:00, skipping insertion in model container [2022-11-08 07:42:00,875 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:42:00" (1/1) ... [2022-11-08 07:42:00,885 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-08 07:42:00,944 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-08 07:42:01,182 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-08 07:42:01,579 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39095,39108] [2022-11-08 07:42:01,584 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39180,39193] [2022-11-08 07:42:01,584 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39232,39245] [2022-11-08 07:42:01,595 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39641,39654] [2022-11-08 07:42:01,598 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39726,39739] [2022-11-08 07:42:01,599 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39778,39791] [2022-11-08 07:42:01,607 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-08 07:42:01,615 INFO L203 MainTranslator]: Completed pre-run [2022-11-08 07:42:01,633 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-08 07:42:01,684 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39095,39108] [2022-11-08 07:42:01,685 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39180,39193] [2022-11-08 07:42:01,685 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39232,39245] [2022-11-08 07:42:01,688 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39641,39654] [2022-11-08 07:42:01,689 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39726,39739] [2022-11-08 07:42:01,690 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i[39778,39791] [2022-11-08 07:42:01,701 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-08 07:42:01,754 INFO L208 MainTranslator]: Completed translation [2022-11-08 07:42:01,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:42:01 WrapperNode [2022-11-08 07:42:01,755 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-08 07:42:01,756 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-08 07:42:01,757 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-08 07:42:01,758 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-08 07:42:01,767 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:42:01" (1/1) ... [2022-11-08 07:42:01,807 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:42:01" (1/1) ... [2022-11-08 07:42:01,874 INFO L138 Inliner]: procedures = 225, calls = 43, calls flagged for inlining = 10, calls inlined = 7, statements flattened = 198 [2022-11-08 07:42:01,874 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-08 07:42:01,875 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-08 07:42:01,875 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-08 07:42:01,875 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-08 07:42:01,889 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:42:01" (1/1) ... [2022-11-08 07:42:01,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:42:01" (1/1) ... [2022-11-08 07:42:01,906 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:42:01" (1/1) ... [2022-11-08 07:42:01,906 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:42:01" (1/1) ... [2022-11-08 07:42:01,938 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:42:01" (1/1) ... [2022-11-08 07:42:01,943 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:42:01" (1/1) ... [2022-11-08 07:42:01,945 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:42:01" (1/1) ... [2022-11-08 07:42:01,963 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:42:01" (1/1) ... [2022-11-08 07:42:01,966 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-08 07:42:01,974 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-08 07:42:01,974 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-08 07:42:01,975 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-08 07:42:01,976 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:42:01" (1/1) ... [2022-11-08 07:42:01,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-08 07:42:01,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/bin/ugemcutter-QpsTfqS70U/z3 [2022-11-08 07:42:02,007 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/bin/ugemcutter-QpsTfqS70U/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-08 07:42:02,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/bin/ugemcutter-QpsTfqS70U/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-08 07:42:02,050 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-08 07:42:02,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-08 07:42:02,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-08 07:42:02,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-08 07:42:02,050 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-08 07:42:02,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-08 07:42:02,051 INFO L130 BoogieDeclarations]: Found specification of procedure reader_nowait_fn [2022-11-08 07:42:02,051 INFO L138 BoogieDeclarations]: Found implementation of procedure reader_nowait_fn [2022-11-08 07:42:02,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-08 07:42:02,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-08 07:42:02,053 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-08 07:42:02,190 INFO L235 CfgBuilder]: Building ICFG [2022-11-08 07:42:02,208 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-08 07:42:02,896 INFO L276 CfgBuilder]: Performing block encoding [2022-11-08 07:42:02,909 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-08 07:42:02,909 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-08 07:42:02,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:42:02 BoogieIcfgContainer [2022-11-08 07:42:02,912 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-08 07:42:02,914 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-08 07:42:02,915 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-08 07:42:02,923 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-08 07:42:02,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 07:42:00" (1/3) ... [2022-11-08 07:42:02,924 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@101a1b11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:42:02, skipping insertion in model container [2022-11-08 07:42:02,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:42:01" (2/3) ... [2022-11-08 07:42:02,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@101a1b11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:42:02, skipping insertion in model container [2022-11-08 07:42:02,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:42:02" (3/3) ... [2022-11-08 07:42:02,928 INFO L112 eAbstractionObserver]: Analyzing ICFG ring_1w1r-1.i [2022-11-08 07:42:02,939 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-08 07:42:02,950 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-08 07:42:02,950 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 15 error locations. [2022-11-08 07:42:02,950 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-08 07:42:03,084 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-08 07:42:03,135 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-08 07:42:03,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-08 07:42:03,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/bin/ugemcutter-QpsTfqS70U/z3 [2022-11-08 07:42:03,142 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-08 07:42:03,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-11-08 07:42:03,188 INFO L156 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-08 07:42:03,205 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == reader_nowait_fnThread1of1ForFork0 ======== [2022-11-08 07:42:03,213 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=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@4bafa368, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-08 07:42:03,214 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-08 07:42:03,585 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2022-11-08 07:42:03,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-08 07:42:03,591 INFO L85 PathProgramCache]: Analyzing trace with hash 539498211, now seen corresponding path program 1 times [2022-11-08 07:42:03,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-08 07:42:03,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7062453] [2022-11-08 07:42:03,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-08 07:42:03,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-08 07:42:03,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-08 07:42:03,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-08 07:42:03,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-08 07:42:03,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7062453] [2022-11-08 07:42:03,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7062453] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-08 07:42:03,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-08 07:42:03,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-08 07:42:03,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721797658] [2022-11-08 07:42:03,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-08 07:42:03,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-08 07:42:03,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-08 07:42:03,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-08 07:42:03,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-08 07:42:03,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:03,973 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-08 07:42:03,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 41.5) internal successors, (83), 2 states have internal predecessors, (83), 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) [2022-11-08 07:42:03,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:03,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:03,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-08 07:42:03,997 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2022-11-08 07:42:03,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-08 07:42:03,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1460993023, now seen corresponding path program 1 times [2022-11-08 07:42:03,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-08 07:42:03,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782003204] [2022-11-08 07:42:03,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-08 07:42:03,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-08 07:42:04,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-08 07:42:04,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-08 07:42:04,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-08 07:42:04,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782003204] [2022-11-08 07:42:04,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782003204] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-08 07:42:04,192 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-08 07:42:04,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-08 07:42:04,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466282598] [2022-11-08 07:42:04,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-08 07:42:04,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-08 07:42:04,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-08 07:42:04,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-08 07:42:04,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-08 07:42:04,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:04,198 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-08 07:42:04,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2022-11-08 07:42:04,199 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:04,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:04,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:04,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:04,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-08 07:42:04,401 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2022-11-08 07:42:04,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-08 07:42:04,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1804256388, now seen corresponding path program 1 times [2022-11-08 07:42:04,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-08 07:42:04,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784445974] [2022-11-08 07:42:04,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-08 07:42:04,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-08 07:42:04,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-08 07:42:04,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-08 07:42:04,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-08 07:42:04,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784445974] [2022-11-08 07:42:04,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784445974] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-08 07:42:04,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-08 07:42:04,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-08 07:42:04,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748447976] [2022-11-08 07:42:04,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-08 07:42:04,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-08 07:42:04,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-08 07:42:04,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-08 07:42:04,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-08 07:42:04,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:04,569 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-08 07:42:04,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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) [2022-11-08 07:42:04,569 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:04,569 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:04,569 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:04,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:04,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:04,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:04,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-08 07:42:04,664 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2022-11-08 07:42:04,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-08 07:42:04,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1579335146, now seen corresponding path program 1 times [2022-11-08 07:42:04,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-08 07:42:04,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315705210] [2022-11-08 07:42:04,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-08 07:42:04,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-08 07:42:04,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-08 07:42:05,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-08 07:42:05,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-08 07:42:05,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315705210] [2022-11-08 07:42:05,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315705210] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-08 07:42:05,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-08 07:42:05,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-08 07:42:05,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516384668] [2022-11-08 07:42:05,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-08 07:42:05,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-08 07:42:05,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-08 07:42:05,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-08 07:42:05,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-08 07:42:05,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:05,302 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-08 07:42:05,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.8) internal successors, (79), 6 states have internal predecessors, (79), 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) [2022-11-08 07:42:05,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:05,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:05,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:05,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:05,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:05,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:05,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:05,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:05,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-08 07:42:05,601 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2022-11-08 07:42:05,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-08 07:42:05,602 INFO L85 PathProgramCache]: Analyzing trace with hash -652206248, now seen corresponding path program 1 times [2022-11-08 07:42:05,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-08 07:42:05,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100687258] [2022-11-08 07:42:05,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-08 07:42:05,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-08 07:42:05,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-08 07:42:07,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-08 07:42:07,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-08 07:42:07,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100687258] [2022-11-08 07:42:07,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100687258] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-08 07:42:07,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-08 07:42:07,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-08 07:42:07,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289904541] [2022-11-08 07:42:07,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-08 07:42:07,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-08 07:42:07,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-08 07:42:07,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-08 07:42:07,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2022-11-08 07:42:07,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:07,360 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-08 07:42:07,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 5.294117647058823) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-08 07:42:07,360 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:07,360 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:07,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:07,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:07,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:08,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:08,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:08,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:08,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:08,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-08 07:42:08,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-08 07:42:08,570 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2022-11-08 07:42:08,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-08 07:42:08,570 INFO L85 PathProgramCache]: Analyzing trace with hash 593482407, now seen corresponding path program 1 times [2022-11-08 07:42:08,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-08 07:42:08,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032522755] [2022-11-08 07:42:08,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-08 07:42:08,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-08 07:42:08,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-08 07:42:09,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-08 07:42:09,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-08 07:42:09,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032522755] [2022-11-08 07:42:09,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032522755] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-08 07:42:09,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-08 07:42:09,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-08 07:42:09,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955237461] [2022-11-08 07:42:09,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-08 07:42:09,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-08 07:42:09,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-08 07:42:09,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-08 07:42:09,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-08 07:42:09,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:09,062 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-08 07:42:09,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 21.2) internal successors, (106), 6 states have internal predecessors, (106), 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) [2022-11-08 07:42:09,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:09,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:09,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:09,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:09,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-11-08 07:42:09,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:09,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:09,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:09,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:09,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:09,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-08 07:42:09,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:09,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-08 07:42:09,263 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2022-11-08 07:42:09,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-08 07:42:09,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1597237657, now seen corresponding path program 1 times [2022-11-08 07:42:09,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-08 07:42:09,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823861503] [2022-11-08 07:42:09,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-08 07:42:09,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-08 07:42:09,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-08 07:42:09,402 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-08 07:42:09,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-08 07:42:09,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823861503] [2022-11-08 07:42:09,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823861503] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-08 07:42:09,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1134367811] [2022-11-08 07:42:09,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-08 07:42:09,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-08 07:42:09,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/bin/ugemcutter-QpsTfqS70U/z3 [2022-11-08 07:42:09,406 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-08 07:42:09,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-08 07:42:09,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-08 07:42:09,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-08 07:42:09,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-08 07:42:09,801 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-08 07:42:09,802 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-08 07:42:09,944 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-08 07:42:09,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1134367811] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-08 07:42:09,944 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-08 07:42:09,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 5] total 10 [2022-11-08 07:42:09,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368168231] [2022-11-08 07:42:09,945 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-08 07:42:09,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-08 07:42:09,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-08 07:42:09,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-08 07:42:09,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-08 07:42:09,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:09,947 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-08 07:42:09,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 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) [2022-11-08 07:42:09,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:09,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:09,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:09,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:09,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-11-08 07:42:09,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:09,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:10,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:10,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:10,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:10,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:10,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-08 07:42:10,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:10,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-08 07:42:10,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-08 07:42:10,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-08 07:42:10,358 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2022-11-08 07:42:10,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-08 07:42:10,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1946810025, now seen corresponding path program 1 times [2022-11-08 07:42:10,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-08 07:42:10,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866070643] [2022-11-08 07:42:10,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-08 07:42:10,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-08 07:42:10,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-08 07:42:11,017 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-08 07:42:11,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-08 07:42:11,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866070643] [2022-11-08 07:42:11,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866070643] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-08 07:42:11,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-08 07:42:11,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-08 07:42:11,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710733078] [2022-11-08 07:42:11,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-08 07:42:11,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-08 07:42:11,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-08 07:42:11,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-08 07:42:11,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-08 07:42:11,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:11,020 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-08 07:42:11,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 24.8) internal successors, (124), 6 states have internal predecessors, (124), 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) [2022-11-08 07:42:11,020 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:11,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:11,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:11,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:11,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-11-08 07:42:11,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:11,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-08 07:42:11,022 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:11,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:11,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:11,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:11,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:11,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-08 07:42:11,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:11,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-08 07:42:11,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:11,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-08 07:42:11,245 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2022-11-08 07:42:11,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-08 07:42:11,245 INFO L85 PathProgramCache]: Analyzing trace with hash 379622983, now seen corresponding path program 2 times [2022-11-08 07:42:11,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-08 07:42:11,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644956245] [2022-11-08 07:42:11,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-08 07:42:11,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-08 07:42:11,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-08 07:42:12,145 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-08 07:42:12,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-08 07:42:12,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644956245] [2022-11-08 07:42:12,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644956245] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-08 07:42:12,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [827047715] [2022-11-08 07:42:12,152 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-08 07:42:12,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-08 07:42:12,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/bin/ugemcutter-QpsTfqS70U/z3 [2022-11-08 07:42:12,155 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-08 07:42:12,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-08 07:42:12,343 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-08 07:42:12,343 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-08 07:42:12,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-08 07:42:12,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-08 07:42:12,396 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-08 07:42:12,421 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-08 07:42:12,449 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-08 07:42:12,449 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-11-08 07:42:12,484 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-08 07:42:12,485 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2022-11-08 07:42:12,517 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-08 07:42:12,518 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-08 07:42:12,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [827047715] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-08 07:42:12,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-08 07:42:12,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [15] total 19 [2022-11-08 07:42:12,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509341447] [2022-11-08 07:42:12,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-08 07:42:12,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-08 07:42:12,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-08 07:42:12,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-08 07:42:12,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2022-11-08 07:42:12,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:12,521 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-08 07:42:12,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 26.4) internal successors, (132), 6 states have internal predecessors, (132), 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) [2022-11-08 07:42:12,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:12,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:12,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:12,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:12,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-11-08 07:42:12,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:12,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-11-08 07:42:12,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:12,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:12,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:12,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:12,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:12,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:12,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-08 07:42:12,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:12,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-08 07:42:12,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:12,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:12,749 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-08 07:42:12,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-08 07:42:12,929 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting reader_nowait_fnErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2022-11-08 07:42:12,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-08 07:42:12,930 INFO L85 PathProgramCache]: Analyzing trace with hash 983402703, now seen corresponding path program 1 times [2022-11-08 07:42:12,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-08 07:42:12,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816781228] [2022-11-08 07:42:12,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-08 07:42:12,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-08 07:42:12,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-08 07:42:13,906 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-08 07:42:13,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-08 07:42:13,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816781228] [2022-11-08 07:42:13,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816781228] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-08 07:42:13,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [489071055] [2022-11-08 07:42:13,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-08 07:42:13,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-08 07:42:13,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/bin/ugemcutter-QpsTfqS70U/z3 [2022-11-08 07:42:13,909 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-08 07:42:13,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-08 07:42:14,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-08 07:42:14,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 709 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-08 07:42:14,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-08 07:42:14,492 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-08 07:42:14,493 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-08 07:42:14,860 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-08 07:42:14,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [489071055] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-08 07:42:14,861 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-08 07:42:14,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 9, 9] total 25 [2022-11-08 07:42:14,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815823749] [2022-11-08 07:42:14,861 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-08 07:42:14,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-08 07:42:14,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-08 07:42:14,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-08 07:42:14,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=448, Unknown=0, NotChecked=0, Total=600 [2022-11-08 07:42:14,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:14,864 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-08 07:42:14,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 19.04) internal successors, (476), 25 states have internal predecessors, (476), 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) [2022-11-08 07:42:14,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:14,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:14,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:14,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:14,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-11-08 07:42:14,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:14,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-11-08 07:42:14,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:14,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:14,866 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:15,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:15,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:15,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:15,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:15,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-08 07:42:15,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:15,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-08 07:42:15,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:15,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:15,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-08 07:42:15,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-08 07:42:15,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-08 07:42:15,581 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting reader_nowait_fnErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2022-11-08 07:42:15,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-08 07:42:15,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1626316943, now seen corresponding path program 2 times [2022-11-08 07:42:15,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-08 07:42:15,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576334305] [2022-11-08 07:42:15,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-08 07:42:15,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-08 07:42:15,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-08 07:42:18,523 INFO L134 CoverageAnalysis]: Checked inductivity of 994 backedges. 0 proven. 994 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-08 07:42:18,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-08 07:42:18,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576334305] [2022-11-08 07:42:18,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576334305] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-08 07:42:18,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [759983836] [2022-11-08 07:42:18,524 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-08 07:42:18,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-08 07:42:18,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/bin/ugemcutter-QpsTfqS70U/z3 [2022-11-08 07:42:18,526 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-08 07:42:18,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-08 07:42:18,808 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-08 07:42:18,808 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-08 07:42:18,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-08 07:42:18,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-08 07:42:18,837 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-08 07:42:18,860 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-08 07:42:18,896 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-08 07:42:18,896 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2022-11-08 07:42:18,941 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-08 07:42:18,941 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 46 [2022-11-08 07:42:18,982 INFO L134 CoverageAnalysis]: Checked inductivity of 994 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 994 trivial. 0 not checked. [2022-11-08 07:42:18,983 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-08 07:42:18,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [759983836] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-08 07:42:18,983 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-08 07:42:18,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [29] total 33 [2022-11-08 07:42:18,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7714634] [2022-11-08 07:42:18,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-08 07:42:18,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-08 07:42:18,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-08 07:42:18,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-08 07:42:18,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=229, Invalid=827, Unknown=0, NotChecked=0, Total=1056 [2022-11-08 07:42:18,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:18,987 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-08 07:42:18,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 27.6) internal successors, (138), 6 states have internal predecessors, (138), 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) [2022-11-08 07:42:18,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:18,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:18,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:18,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:18,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-11-08 07:42:18,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:18,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-11-08 07:42:18,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:18,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:18,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-11-08 07:42:18,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:19,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:19,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:19,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:19,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:19,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-08 07:42:19,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:19,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-08 07:42:19,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:19,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:19,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-08 07:42:19,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:19,681 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-08 07:42:19,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-08 07:42:19,857 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2022-11-08 07:42:19,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-08 07:42:19,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1893637194, now seen corresponding path program 1 times [2022-11-08 07:42:19,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-08 07:42:19,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572209978] [2022-11-08 07:42:19,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-08 07:42:19,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-08 07:42:19,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-08 07:42:21,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-08 07:42:21,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-08 07:42:21,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572209978] [2022-11-08 07:42:21,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572209978] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-08 07:42:21,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-08 07:42:21,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-08 07:42:21,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873076682] [2022-11-08 07:42:21,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-08 07:42:21,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-08 07:42:21,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-08 07:42:21,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-08 07:42:21,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2022-11-08 07:42:21,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:21,562 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-08 07:42:21,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.722222222222222) internal successors, (121), 18 states have internal predecessors, (121), 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) [2022-11-08 07:42:21,562 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:21,562 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:21,562 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:21,562 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:21,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-11-08 07:42:21,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:21,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-11-08 07:42:21,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:21,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:21,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-11-08 07:42:21,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:21,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:22,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:22,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:22,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:22,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:22,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-08 07:42:22,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:22,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-08 07:42:22,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:22,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:22,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-08 07:42:22,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:22,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-08 07:42:22,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-08 07:42:22,851 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2022-11-08 07:42:22,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-08 07:42:22,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1303592158, now seen corresponding path program 1 times [2022-11-08 07:42:22,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-08 07:42:22,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631317855] [2022-11-08 07:42:22,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-08 07:42:22,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-08 07:42:22,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-08 07:42:24,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-08 07:42:24,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-08 07:42:24,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631317855] [2022-11-08 07:42:24,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631317855] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-08 07:42:24,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-08 07:42:24,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-08 07:42:24,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927860728] [2022-11-08 07:42:24,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-08 07:42:24,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-08 07:42:24,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-08 07:42:24,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-08 07:42:24,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2022-11-08 07:42:24,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:24,124 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-08 07:42:24,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 7.235294117647059) internal successors, (123), 18 states have internal predecessors, (123), 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) [2022-11-08 07:42:24,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:24,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:24,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:24,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:24,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-11-08 07:42:24,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:24,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-11-08 07:42:24,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:24,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:24,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-11-08 07:42:24,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:24,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-11-08 07:42:24,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:26,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:26,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:26,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:26,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:26,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-08 07:42:26,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:26,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-08 07:42:26,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:26,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:26,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-08 07:42:26,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:26,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-08 07:42:26,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-08 07:42:26,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-08 07:42:26,946 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2022-11-08 07:42:26,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-08 07:42:26,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1420219332, now seen corresponding path program 1 times [2022-11-08 07:42:26,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-08 07:42:26,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926705180] [2022-11-08 07:42:26,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-08 07:42:26,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-08 07:42:27,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-08 07:42:27,205 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 26 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-08 07:42:27,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-08 07:42:27,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926705180] [2022-11-08 07:42:27,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926705180] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-08 07:42:27,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1083998343] [2022-11-08 07:42:27,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-08 07:42:27,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-08 07:42:27,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/bin/ugemcutter-QpsTfqS70U/z3 [2022-11-08 07:42:27,211 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-08 07:42:27,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-08 07:42:27,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-08 07:42:27,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 664 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-08 07:42:27,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-08 07:42:27,676 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 26 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-08 07:42:27,677 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-08 07:42:27,841 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 26 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-08 07:42:27,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1083998343] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-08 07:42:27,841 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-08 07:42:27,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-08 07:42:27,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709257566] [2022-11-08 07:42:27,842 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-08 07:42:27,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-08 07:42:27,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-08 07:42:27,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-08 07:42:27,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-08 07:42:27,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:27,845 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-08 07:42:27,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 58.42857142857143) internal successors, (409), 7 states have internal predecessors, (409), 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) [2022-11-08 07:42:27,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:27,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:27,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:27,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:27,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-11-08 07:42:27,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:27,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-11-08 07:42:27,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:27,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:27,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-11-08 07:42:27,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:27,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-11-08 07:42:27,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-11-08 07:42:27,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:28,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:28,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:28,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:28,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:28,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-08 07:42:28,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:28,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-08 07:42:28,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:28,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:28,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-08 07:42:28,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:28,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-08 07:42:28,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-08 07:42:28,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:42:28,770 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-08 07:42:28,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-08 07:42:28,948 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2022-11-08 07:42:28,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-08 07:42:28,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1379690891, now seen corresponding path program 1 times [2022-11-08 07:42:28,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-08 07:42:28,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191668783] [2022-11-08 07:42:28,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-08 07:42:28,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-08 07:42:29,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-08 07:42:32,780 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 14 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-08 07:42:32,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-08 07:42:32,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191668783] [2022-11-08 07:42:32,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191668783] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-08 07:42:32,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1034491589] [2022-11-08 07:42:32,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-08 07:42:32,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-08 07:42:32,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/bin/ugemcutter-QpsTfqS70U/z3 [2022-11-08 07:42:32,783 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-08 07:42:32,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-08 07:42:33,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-08 07:42:33,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 867 conjuncts, 71 conjunts are in the unsatisfiable core [2022-11-08 07:42:33,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-08 07:42:34,626 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-08 07:42:34,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-08 07:42:34,669 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-08 07:42:34,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-08 07:42:34,699 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-08 07:42:34,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-08 07:42:34,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-08 07:42:34,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-08 07:42:34,740 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-08 07:42:34,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-08 07:42:34,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-08 07:42:34,762 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-08 07:42:34,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-08 07:42:34,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-08 07:42:34,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-08 07:42:34,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-08 07:42:34,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-08 07:42:34,818 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2022-11-08 07:42:34,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-08 07:42:34,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-08 07:42:34,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-08 07:42:34,851 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2022-11-08 07:42:34,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-08 07:42:34,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-08 07:42:34,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-08 07:42:34,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-08 07:42:34,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-08 07:42:34,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-08 07:42:34,923 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-08 07:42:34,924 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 46 treesize of output 54 [2022-11-08 07:42:34,942 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 3 proven. 105 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-08 07:42:34,942 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-08 07:42:44,123 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-08 07:42:44,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1034491589] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-08 07:42:44,123 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-08 07:42:44,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 18, 16] total 36 [2022-11-08 07:42:44,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723447526] [2022-11-08 07:42:44,124 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-08 07:42:44,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-11-08 07:42:44,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-08 07:42:44,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-11-08 07:42:44,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=1201, Unknown=0, NotChecked=0, Total=1332 [2022-11-08 07:42:44,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:44,127 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-08 07:42:44,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 15.333333333333334) internal successors, (552), 37 states have internal predecessors, (552), 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) [2022-11-08 07:42:44,128 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:44,129 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:44,129 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:44,129 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:44,129 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-11-08 07:42:44,129 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:44,129 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-11-08 07:42:44,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:44,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:44,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-11-08 07:42:44,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:44,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-11-08 07:42:44,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-11-08 07:42:44,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:42:44,131 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:47,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:47,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:47,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:47,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:47,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-08 07:42:47,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:47,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-08 07:42:47,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:47,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:47,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-08 07:42:47,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:42:47,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-08 07:42:47,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-08 07:42:47,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-08 07:42:47,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-08 07:42:47,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-08 07:42:47,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-08 07:42:47,466 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2022-11-08 07:42:47,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-08 07:42:47,467 INFO L85 PathProgramCache]: Analyzing trace with hash 21278592, now seen corresponding path program 1 times [2022-11-08 07:42:47,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-08 07:42:47,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718582964] [2022-11-08 07:42:47,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-08 07:42:47,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-08 07:42:47,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-08 07:42:47,941 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-08 07:42:48,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-08 07:42:48,452 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-08 07:42:48,452 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-08 07:42:48,453 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE (5 of 6 remaining) [2022-11-08 07:42:48,455 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE (4 of 6 remaining) [2022-11-08 07:42:48,456 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE (3 of 6 remaining) [2022-11-08 07:42:48,456 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (2 of 6 remaining) [2022-11-08 07:42:48,456 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location reader_nowait_fnErr5ASSERT_VIOLATIONDATA_RACE (1 of 6 remaining) [2022-11-08 07:42:48,457 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location reader_nowait_fnErr2ASSERT_VIOLATIONDATA_RACE (0 of 6 remaining) [2022-11-08 07:42:48,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-08 07:42:48,462 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-08 07:42:48,464 INFO L307 ceAbstractionStarter]: Result for error location reader_nowait_fnThread1of1ForFork0 was UNSAFE,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN (1/2) [2022-11-08 07:42:48,472 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-08 07:42:48,473 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-08 07:42:48,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 07:42:48 BasicIcfg [2022-11-08 07:42:48,774 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-08 07:42:48,775 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-08 07:42:48,775 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-08 07:42:48,775 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-08 07:42:48,776 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:42:02" (3/4) ... [2022-11-08 07:42:48,779 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-08 07:42:48,779 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-08 07:42:48,780 INFO L158 Benchmark]: Toolchain (without parser) took 47920.86ms. Allocated memory was 92.3MB in the beginning and 834.7MB in the end (delta: 742.4MB). Free memory was 50.9MB in the beginning and 707.1MB in the end (delta: -656.1MB). Peak memory consumption was 85.6MB. Max. memory is 16.1GB. [2022-11-08 07:42:48,780 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 92.3MB. Free memory is still 68.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-08 07:42:48,781 INFO L158 Benchmark]: CACSL2BoogieTranslator took 895.00ms. Allocated memory is still 92.3MB. Free memory was 50.7MB in the beginning and 52.4MB in the end (delta: -1.7MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2022-11-08 07:42:48,781 INFO L158 Benchmark]: Boogie Procedure Inliner took 117.93ms. Allocated memory is still 92.3MB. Free memory was 52.4MB in the beginning and 48.7MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-08 07:42:48,781 INFO L158 Benchmark]: Boogie Preprocessor took 98.55ms. Allocated memory is still 92.3MB. Free memory was 48.7MB in the beginning and 45.6MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-08 07:42:48,782 INFO L158 Benchmark]: RCFGBuilder took 937.58ms. Allocated memory was 92.3MB in the beginning and 132.1MB in the end (delta: 39.8MB). Free memory was 45.6MB in the beginning and 91.0MB in the end (delta: -45.4MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. [2022-11-08 07:42:48,784 INFO L158 Benchmark]: TraceAbstraction took 45859.51ms. Allocated memory was 132.1MB in the beginning and 834.7MB in the end (delta: 702.5MB). Free memory was 90.5MB in the beginning and 707.1MB in the end (delta: -616.6MB). Peak memory consumption was 497.1MB. Max. memory is 16.1GB. [2022-11-08 07:42:48,785 INFO L158 Benchmark]: Witness Printer took 4.36ms. Allocated memory is still 834.7MB. Free memory is still 707.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-08 07:42:48,789 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 92.3MB. Free memory is still 68.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 895.00ms. Allocated memory is still 92.3MB. Free memory was 50.7MB in the beginning and 52.4MB in the end (delta: -1.7MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 117.93ms. Allocated memory is still 92.3MB. Free memory was 52.4MB in the beginning and 48.7MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 98.55ms. Allocated memory is still 92.3MB. Free memory was 48.7MB in the beginning and 45.6MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 937.58ms. Allocated memory was 92.3MB in the beginning and 132.1MB in the end (delta: 39.8MB). Free memory was 45.6MB in the beginning and 91.0MB in the end (delta: -45.4MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. * TraceAbstraction took 45859.51ms. Allocated memory was 132.1MB in the beginning and 834.7MB in the end (delta: 702.5MB). Free memory was 90.5MB in the beginning and 707.1MB in the end (delta: -616.6MB). Peak memory consumption was 497.1MB. Max. memory is 16.1GB. * Witness Printer took 4.36ms. Allocated memory is still 834.7MB. Free memory is still 707.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 15752, positive: 13350, positive conditional: 2314, positive unconditional: 11036, negative: 2402, negative conditional: 2185, negative unconditional: 217, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 13720, positive: 13350, positive conditional: 2314, positive unconditional: 11036, negative: 370, negative conditional: 153, negative unconditional: 217, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 13720, positive: 13350, positive conditional: 2314, positive unconditional: 11036, negative: 370, negative conditional: 153, negative unconditional: 217, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 15001, positive: 13350, positive conditional: 144, positive unconditional: 13206, negative: 1651, negative conditional: 1137, negative unconditional: 514, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 15001, positive: 13350, positive conditional: 144, positive unconditional: 13206, negative: 1651, negative conditional: 724, negative unconditional: 927, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 15001, positive: 13350, positive conditional: 144, positive unconditional: 13206, negative: 1651, negative conditional: 724, negative unconditional: 927, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 8370, positive: 7932, positive conditional: 65, positive unconditional: 7867, negative: 438, negative conditional: 207, negative unconditional: 231, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 8370, positive: 7578, positive conditional: 0, positive unconditional: 7578, negative: 792, negative conditional: 0, negative unconditional: 792, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 792, positive: 354, positive conditional: 65, positive unconditional: 289, negative: 438, negative conditional: 207, negative unconditional: 231, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2479, positive: 914, positive conditional: 262, positive unconditional: 652, negative: 1565, negative conditional: 870, negative unconditional: 694, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 15001, positive: 5418, positive conditional: 79, positive unconditional: 5339, negative: 1213, negative conditional: 517, negative unconditional: 696, unknown: 8370, unknown conditional: 272, unknown unconditional: 8098] , Statistics on independence cache: Total cache size (in pairs): 8370, Positive cache size: 7932, Positive conditional cache size: 65, Positive unconditional cache size: 7867, Negative cache size: 438, Negative conditional cache size: 207, Negative unconditional cache size: 231, Eliminated conditions: 413, Maximal queried relation: 9, Independence queries for same thread: 2032 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 1.5s, Number of persistent set computation: 928, Number of trivial persistent sets: 848, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11253, positive: 11036, positive conditional: 0, positive unconditional: 11036, negative: 217, negative conditional: 0, negative unconditional: 217, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 15752, positive: 13350, positive conditional: 2314, positive unconditional: 11036, negative: 2402, negative conditional: 2185, negative unconditional: 217, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 13720, positive: 13350, positive conditional: 2314, positive unconditional: 11036, negative: 370, negative conditional: 153, negative unconditional: 217, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 13720, positive: 13350, positive conditional: 2314, positive unconditional: 11036, negative: 370, negative conditional: 153, negative unconditional: 217, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 15001, positive: 13350, positive conditional: 144, positive unconditional: 13206, negative: 1651, negative conditional: 1137, negative unconditional: 514, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 15001, positive: 13350, positive conditional: 144, positive unconditional: 13206, negative: 1651, negative conditional: 724, negative unconditional: 927, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 15001, positive: 13350, positive conditional: 144, positive unconditional: 13206, negative: 1651, negative conditional: 724, negative unconditional: 927, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 8370, positive: 7932, positive conditional: 65, positive unconditional: 7867, negative: 438, negative conditional: 207, negative unconditional: 231, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 8370, positive: 7578, positive conditional: 0, positive unconditional: 7578, negative: 792, negative conditional: 0, negative unconditional: 792, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 792, positive: 354, positive conditional: 65, positive unconditional: 289, negative: 438, negative conditional: 207, negative unconditional: 231, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2479, positive: 914, positive conditional: 262, positive unconditional: 652, negative: 1565, negative conditional: 870, negative unconditional: 694, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 15001, positive: 5418, positive conditional: 79, positive unconditional: 5339, negative: 1213, negative conditional: 517, negative unconditional: 696, unknown: 8370, unknown conditional: 272, unknown unconditional: 8098] , Statistics on independence cache: Total cache size (in pairs): 8370, Positive cache size: 7932, Positive conditional cache size: 65, Positive unconditional cache size: 7867, Negative cache size: 438, Negative conditional cache size: 207, Negative unconditional cache size: 231, Eliminated conditions: 413, Maximal queried relation: 9, Independence queries for same thread: 2032 - DataRaceFoundResult [Line: 816]: Data race detected Data race detected The following path leads to a data race: [L864] 0 pthread_t reader; VAL [reader={17:0}] [L865] 0 Ring r; VAL [r={16:0}, reader={17:0}] [L866] CALL 0 ring_init( &r ) [L823] EXPR 0 r->writer = 0 VAL [r={16:0}, r={16:0}, r->writer = 0=116] [L823] 0 r->reader = r->writer = 0 VAL [r={16:0}, r={16:0}, r->reader = r->writer = 0=117, r->writer = 0=116] [L866] RET 0 ring_init( &r ) [L867] FCALL, FORK 0 pthread_create( &reader, ((void *)0), &reader_nowait_fn, &r ) VAL [pthread_create( &reader, ((void *)0), &reader_nowait_fn, &r )=-2, r={16:0}, reader={17:0}] [L851] 1 Ring *r = arg; VAL [arg={16:0}, arg={16:0}, r={16:0}] [L852] 1 long val = 0, last = 0, i = 0; VAL [arg={16:0}, arg={16:0}, r={16:0}, val=0] [L868] CALL 0 writer_fn( &r ) [L852] 1 long val = 0, last = 0, i = 0; VAL [arg={16:0}, arg={16:0}, i=0, last=0, r={16:0}, val=0] [L853] COND TRUE 1 i < 8 VAL [arg={16:0}, arg={16:0}, i=0, last=0, r={16:0}, val=0] [L854] CALL, EXPR 1 ring_dequeue( r ) [L842] 0 Ring *r = arg; VAL [arg={16:0}, arg={16:0}, r={16:0}] [L843] 0 long i = 0; VAL [arg={16:0}, arg={16:0}, i=0, r={16:0}] [L843] COND TRUE 0 i < 8 VAL [arg={16:0}, arg={16:0}, i=0, r={16:0}] [L845] CALL 0 ring_enqueue( r, i + 1 ) [L815] EXPR 1 r->reader VAL [r={16:0}, r={16:0}, r->reader=0] [L815] EXPR 1 r->q[ r->reader ] VAL [r={16:0}, r={16:0}, r->reader=0] [L815] EXPR 1 r->q[ r->reader ] VAL [r={16:0}, r={16:0}, r->reader=0] [L815] EXPR 1 r->q[ r->reader ] VAL [r={16:0}, r={16:0}, r->reader=0] [L810] EXPR 0 r->writer VAL [\old(x)=1, r={16:0}, r={16:0}, r->writer=0, x=1] [L815] EXPR 1 r->q[ r->reader ] VAL [r={16:0}, r={16:0}, r->reader=0] [L810] EXPR 0 r->writer + 1 VAL [\old(x)=1, r={16:0}, r={16:0}, r->writer=0, x=1] [L815] EXPR 1 r->q[ r->reader ] VAL [r={16:0}, r={16:0}, r->q[ r->reader ]=1, r->reader=0] [L810] EXPR 0 r->writer + 1 VAL [\old(x)=1, r={16:0}, r={16:0}, r->writer=0, x=1] [L815] 1 long x = r->q[ r->reader ]; VAL [r={16:0}, r={16:0}, r->q[ r->reader ]=1, r->reader=0] [L810] EXPR 0 r->writer + 1 VAL [\old(x)=1, r={16:0}, r={16:0}, r->writer=0, x=1] [L815] 1 long x = r->q[ r->reader ]; VAL [r={16:0}, r={16:0}, r->q[ r->reader ]=1, r->reader=0] [L810] EXPR 0 r->writer + 1 VAL [\old(x)=1, r={16:0}, r={16:0}, r->writer=0, x=1] [L815] 1 long x = r->q[ r->reader ]; VAL [r={16:0}, r={16:0}, r->q[ r->reader ]=1, r->reader=0] [L810] EXPR 0 r->writer + 1 VAL [\old(x)=1, r={16:0}, r={16:0}, r->writer=0, x=1] [L815] 1 long x = r->q[ r->reader ]; VAL [r={16:0}, r={16:0}, r->q[ r->reader ]=1, r->reader=0] [L810] EXPR 0 r->reader VAL [\old(x)=1, r={16:0}, r={16:0}, r->reader=0, r->writer=0, x=1] [L815] 1 long x = r->q[ r->reader ]; VAL [r={16:0}, r={16:0}, r->q[ r->reader ]=1, r->reader=0] [L810] 0 (r->writer + 1) % 4 == r->reader VAL [\old(x)=1, r={16:0}, r={16:0}, r->reader=0, r->writer=0, x=1] [L815] 1 long x = r->q[ r->reader ]; VAL [r={16:0}, r={16:0}, r->q[ r->reader ]=1, r->reader=0, x=1] [L810] 0 (r->writer + 1) % 4 == r->reader VAL [\old(x)=1, r={16:0}, r={16:0}, r->reader=0, r->writer=0, x=1] [L810] 0 (r->writer + 1) % 4 == r->reader VAL [\old(x)=1, r={16:0}, r={16:0}, r->reader=0, r->writer=0, x=1] [L810] 0 (r->writer + 1) % 4 == r->reader VAL [\old(x)=1, r={16:0}, r={16:0}, r->reader=0, r->writer=0, x=1] [L816] EXPR 1 r->reader VAL [r={16:0}, r={16:0}, r->reader=0, x=1] [L810] 0 (r->writer + 1) % 4 == r->reader VAL [\old(x)=1, r={16:0}, r={16:0}, r->reader=0, r->writer=0, x=1] [L816] EXPR 1 r->reader + 1 VAL [r={16:0}, r={16:0}, r->reader=0, x=1] [L810] COND FALSE 0 !((r->writer + 1) % 4 == r->reader) VAL [\old(x)=1, r={16:0}, r={16:0}, r->reader=0, r->writer=0, x=1] [L816] EXPR 1 r->reader + 1 VAL [r={16:0}, r={16:0}, r->reader=0, x=1] [L816] EXPR 1 r->reader + 1 VAL [r={16:0}, r={16:0}, r->reader=0, x=1] [L816] EXPR 1 r->reader + 1 VAL [r={16:0}, r={16:0}, r->reader=0, x=1] [L811] EXPR 0 r->writer VAL [\old(x)=1, r={16:0}, r={16:0}, r->writer=0, x=1] [L816] EXPR 1 r->reader + 1 VAL [r={16:0}, r={16:0}, r->reader=0, x=1] [L811] EXPR 0 r->q[ r->writer ] VAL [\old(x)=1, r={16:0}, r={16:0}, r->writer=0, x=1] [L816] 1 r->reader = (r->reader + 1) % 4 VAL [r={16:0}, r={16:0}, r->reader=0, x=1] [L811] EXPR 0 r->q[ r->writer ] VAL [\old(x)=1, r={16:0}, r={16:0}, r->writer=0, x=1] [L811] EXPR 0 r->q[ r->writer ] VAL [\old(x)=1, r={16:0}, r={16:0}, r->writer=0, x=1] [L816] 1 r->reader = (r->reader + 1) % 4 VAL [r={16:0}, r={16:0}, r->reader=0, r->reader = (r->reader + 1) % 4=120, x=1] [L811] EXPR 0 r->q[ r->writer ] VAL [\old(x)=1, r={16:0}, r={16:0}, r->writer=0, x=1] [L816] 1 r->reader = (r->reader + 1) % 4 VAL [r={16:0}, r={16:0}, r->reader=0, r->reader = (r->reader + 1) % 4=120, x=1] [L811] EXPR 0 r->q[ r->writer ] VAL [\old(x)=1, r={16:0}, r={16:0}, r->writer=0, x=1] [L816] 1 r->reader = (r->reader + 1) % 4 VAL [r={16:0}, r={16:0}, r->reader=0, r->reader = (r->reader + 1) % 4=120, x=1] [L811] 0 r->q[ r->writer ] = x VAL [\old(x)=1, r={16:0}, r={16:0}, r->writer=0, x=1] [L816] 1 r->reader = (r->reader + 1) % 4 VAL [r={16:0}, r={16:0}, r->reader=0, r->reader = (r->reader + 1) % 4=120, x=1] [L816] 1 r->reader = (r->reader + 1) % 4 VAL [r={16:0}, r={16:0}, r->reader=0, r->reader = (r->reader + 1) % 4=120, x=1] [L811] 0 r->q[ r->writer ] = x VAL [\old(x)=1, r={16:0}, r={16:0}, r->q[ r->writer ] = x=123, r->writer=0, x=1] [L811] 0 r->q[ r->writer ] = x VAL [\old(x)=1, r={16:0}, r={16:0}, r->q[ r->writer ] = x=123, r->writer=0, x=1] [L811] 0 r->q[ r->writer ] = x VAL [\old(x)=1, r={16:0}, r={16:0}, r->q[ r->writer ] = x=123, r->writer=0, x=1] [L817] 1 return x; VAL [\result=1, r={16:0}, r={16:0}, x=1] [L811] 0 r->q[ r->writer ] = x VAL [\old(x)=1, r={16:0}, r={16:0}, r->q[ r->writer ] = x=123, r->writer=0, x=1] [L854] RET, EXPR 1 ring_dequeue( r ) [L854] 1 val = ring_dequeue( r ) VAL [arg={16:0}, arg={16:0}, i=0, last=0, r={16:0}, ring_dequeue( r )=1, val=1] [L812] EXPR 0 r->writer VAL [\old(x)=1, r={16:0}, r={16:0}, r->writer=0, x=1] [L812] EXPR 0 r->writer + 1 VAL [\old(x)=1, r={16:0}, r={16:0}, r->writer=0, x=1] [L855] 1 !(val == last + 1) ? reach_error() : (void)0 VAL [arg={16:0}, arg={16:0}, i=0, last=0, r={16:0}, val=1] [L812] EXPR 0 r->writer + 1 VAL [\old(x)=1, r={16:0}, r={16:0}, r->writer=0, x=1] [L856] 1 last = val VAL [arg={16:0}, arg={16:0}, i=0, last=1, r={16:0}, val=1] [L812] EXPR 0 r->writer + 1 VAL [\old(x)=1, r={16:0}, r={16:0}, r->writer=0, x=1] [L857] 1 ++i VAL [++i=1, arg={16:0}, arg={16:0}, i=0, last=1, r={16:0}, val=1] [L812] EXPR 0 r->writer + 1 VAL [\old(x)=1, r={16:0}, r={16:0}, r->writer=0, x=1] [L857] 1 ++i VAL [++i=1, arg={16:0}, arg={16:0}, i=1, last=1, r={16:0}, val=1] [L812] 0 r->writer = (r->writer + 1) % 4 VAL [\old(x)=1, r={16:0}, r={16:0}, r->writer=0, x=1] [L853] COND TRUE 1 i < 8 VAL [arg={16:0}, arg={16:0}, i=1, last=1, r={16:0}, val=1] [L812] 0 r->writer = (r->writer + 1) % 4 VAL [\old(x)=1, r={16:0}, r={16:0}, r->writer=0, r->writer = (r->writer + 1) % 4=118, x=1] [L854] CALL, EXPR 1 ring_dequeue( r ) [L812] 0 r->writer = (r->writer + 1) % 4 VAL [\old(x)=1, r={16:0}, r={16:0}, r->writer=0, r->writer = (r->writer + 1) % 4=118, x=1] [L815] EXPR 1 r->reader VAL [r={16:0}, r={16:0}, r->reader=1] [L815] EXPR 1 r->q[ r->reader ] VAL [r={16:0}, r={16:0}, r->reader=1] [L845] RET 0 ring_enqueue( r, i + 1 ) [L815] EXPR 1 r->q[ r->reader ] VAL [r={16:0}, r={16:0}, r->reader=1] [L843] 0 ++i VAL [++i=1, arg={16:0}, arg={16:0}, i=0, r={16:0}] [L815] EXPR 1 r->q[ r->reader ] VAL [r={16:0}, r={16:0}, r->reader=1] [L843] 0 ++i VAL [++i=1, arg={16:0}, arg={16:0}, i=1, r={16:0}] [L815] EXPR 1 r->q[ r->reader ] VAL [r={16:0}, r={16:0}, r->reader=1] [L815] EXPR 1 r->q[ r->reader ] VAL [r={16:0}, r={16:0}, r->reader=1] [L843] COND TRUE 0 i < 8 VAL [arg={16:0}, arg={16:0}, i=1, r={16:0}] [L815] EXPR 1 r->q[ r->reader ] VAL [r={16:0}, r={16:0}, r->q[ r->reader ]=2, r->reader=1] [L845] CALL 0 ring_enqueue( r, i + 1 ) [L815] 1 long x = r->q[ r->reader ]; VAL [r={16:0}, r={16:0}, r->q[ r->reader ]=2, r->reader=1] [L815] 1 long x = r->q[ r->reader ]; VAL [r={16:0}, r={16:0}, r->q[ r->reader ]=2, r->reader=1] [L815] 1 long x = r->q[ r->reader ]; VAL [r={16:0}, r={16:0}, r->q[ r->reader ]=2, r->reader=1] [L810] EXPR 0 r->writer VAL [\old(x)=2, r={16:0}, r={16:0}, r->writer=1, x=2] [L815] 1 long x = r->q[ r->reader ]; VAL [r={16:0}, r={16:0}, r->q[ r->reader ]=2, r->reader=1, x=2] [L810] EXPR 0 r->writer + 1 VAL [\old(x)=2, r={16:0}, r={16:0}, r->writer=1, x=2] [L810] EXPR 0 r->writer + 1 VAL [\old(x)=2, r={16:0}, r={16:0}, r->writer=1, x=2] [L810] EXPR 0 r->writer + 1 VAL [\old(x)=2, r={16:0}, r={16:0}, r->writer=1, x=2] [L816] EXPR 1 r->reader VAL [r={16:0}, r={16:0}, r->reader=1, x=2] [L810] EXPR 0 r->writer + 1 VAL [\old(x)=2, r={16:0}, r={16:0}, r->writer=1, x=2] [L816] EXPR 1 r->reader + 1 VAL [r={16:0}, r={16:0}, r->reader=1, x=2] [L810] EXPR 0 r->writer + 1 VAL [\old(x)=2, r={16:0}, r={16:0}, r->writer=1, x=2] [L816] EXPR 1 r->reader + 1 VAL [r={16:0}, r={16:0}, r->reader=1, x=2] [L810] EXPR 0 r->reader VAL [\old(x)=2, r={16:0}, r={16:0}, r->reader=1, r->writer=1, x=2] [L816] EXPR 1 r->reader + 1 VAL [r={16:0}, r={16:0}, r->reader=1, x=2] [L810] 0 (r->writer + 1) % 4 == r->reader VAL [\old(x)=2, r={16:0}, r={16:0}, r->reader=1, r->writer=1, x=2] [L816] EXPR 1 r->reader + 1 VAL [r={16:0}, r={16:0}, r->reader=1, x=2] [L810] 0 (r->writer + 1) % 4 == r->reader VAL [\old(x)=2, r={16:0}, r={16:0}, r->reader=1, r->writer=1, x=2] [L816] EXPR 1 r->reader + 1 VAL [r={16:0}, r={16:0}, r->reader=1, x=2] [L810] 0 (r->writer + 1) % 4 == r->reader VAL [\old(x)=2, r={16:0}, r={16:0}, r->reader=1, r->writer=1, x=2] [L816] 1 r->reader = (r->reader + 1) % 4 VAL [r={16:0}, r={16:0}, r->reader=1, x=2] [L810] 0 (r->writer + 1) % 4 == r->reader VAL [\old(x)=2, r={16:0}, r={16:0}, r->reader=1, r->writer=1, x=2] [L810] 0 (r->writer + 1) % 4 == r->reader VAL [\old(x)=2, r={16:0}, r={16:0}, r->reader=1, r->writer=1, x=2] [L816] 1 r->reader = (r->reader + 1) % 4 VAL [r={16:0}, r={16:0}, r->reader=1, r->reader = (r->reader + 1) % 4=119, x=2] [L810] COND FALSE 0 !((r->writer + 1) % 4 == r->reader) VAL [\old(x)=2, r={16:0}, r={16:0}, r->reader=1, r->writer=1, x=2] [L816] 1 r->reader = (r->reader + 1) % 4 VAL [r={16:0}, r={16:0}, r->reader=1, r->reader = (r->reader + 1) % 4=119, x=2] [L816] 1 r->reader = (r->reader + 1) % 4 VAL [r={16:0}, r={16:0}, r->reader=1, r->reader = (r->reader + 1) % 4=119, x=2] [L816] 1 r->reader = (r->reader + 1) % 4 VAL [r={16:0}, r={16:0}, r->reader=1, r->reader = (r->reader + 1) % 4=119, x=2] [L811] EXPR 0 r->writer VAL [\old(x)=2, r={16:0}, r={16:0}, r->writer=1, x=2] [L816] 1 r->reader = (r->reader + 1) % 4 VAL [r={16:0}, r={16:0}, r->reader=1, r->reader = (r->reader + 1) % 4=119, x=2] [L811] EXPR 0 r->q[ r->writer ] VAL [\old(x)=2, r={16:0}, r={16:0}, r->writer=1, x=2] [L811] EXPR 0 r->q[ r->writer ] VAL [\old(x)=2, r={16:0}, r={16:0}, r->writer=1, x=2] [L811] EXPR 0 r->q[ r->writer ] VAL [\old(x)=2, r={16:0}, r={16:0}, r->writer=1, x=2] [L817] 1 return x; VAL [\result=2, r={16:0}, r={16:0}, x=2] [L811] EXPR 0 r->q[ r->writer ] VAL [\old(x)=2, r={16:0}, r={16:0}, r->writer=1, x=2] [L854] RET, EXPR 1 ring_dequeue( r ) [L811] 0 r->q[ r->writer ] = x VAL [\old(x)=2, r={16:0}, r={16:0}, r->writer=1, x=2] [L854] 1 val = ring_dequeue( r ) VAL [arg={16:0}, arg={16:0}, i=1, last=1, r={16:0}, ring_dequeue( r )=2, val=2] [L811] 0 r->q[ r->writer ] = x VAL [\old(x)=2, r={16:0}, r={16:0}, r->q[ r->writer ] = x=0, r->writer=1, x=2] [L811] 0 r->q[ r->writer ] = x VAL [\old(x)=2, r={16:0}, r={16:0}, r->q[ r->writer ] = x=0, r->writer=1, x=2] [L855] 1 !(val == last + 1) ? reach_error() : (void)0 VAL [arg={16:0}, arg={16:0}, i=1, last=1, r={16:0}, val=2] [L811] 0 r->q[ r->writer ] = x VAL [\old(x)=2, r={16:0}, r={16:0}, r->q[ r->writer ] = x=0, r->writer=1, x=2] [L856] 1 last = val VAL [arg={16:0}, arg={16:0}, i=1, last=2, r={16:0}, val=2] [L811] 0 r->q[ r->writer ] = x VAL [\old(x)=2, r={16:0}, r={16:0}, r->q[ r->writer ] = x=0, r->writer=1, x=2] [L857] 1 ++i VAL [++i=2, arg={16:0}, arg={16:0}, i=1, last=2, r={16:0}, val=2] [L857] 1 ++i VAL [++i=2, arg={16:0}, arg={16:0}, i=2, last=2, r={16:0}, val=2] [L812] EXPR 0 r->writer VAL [\old(x)=2, r={16:0}, r={16:0}, r->writer=1, x=2] [L853] COND TRUE 1 i < 8 VAL [arg={16:0}, arg={16:0}, i=2, last=2, r={16:0}, val=2] [L812] EXPR 0 r->writer + 1 VAL [\old(x)=2, r={16:0}, r={16:0}, r->writer=1, x=2] [L854] CALL 1 ring_dequeue( r ) [L812] EXPR 0 r->writer + 1 VAL [\old(x)=2, r={16:0}, r={16:0}, r->writer=1, x=2] [L812] 0 r->writer = (r->writer + 1) % 4 VAL [\old(x)=2, r={16:0}, r={16:0}, r->writer=1, x=2] [L815] EXPR 1 r->reader VAL [r={16:0}, r={16:0}, r->reader=2] [L815] EXPR 1 r->q[ r->reader ] VAL [r={16:0}, r={16:0}, r->reader=2] [L812] 0 r->writer = (r->writer + 1) % 4 VAL [\old(x)=2, r={16:0}, r={16:0}, r->writer=1, r->writer = (r->writer + 1) % 4=121, x=2] [L815] EXPR 1 r->q[ r->reader ] VAL [r={16:0}, r={16:0}, r->reader=2] [L812] 0 r->writer = (r->writer + 1) % 4 VAL [\old(x)=2, r={16:0}, r={16:0}, r->writer=1, r->writer = (r->writer + 1) % 4=121, x=2] [L815] EXPR 1 r->q[ r->reader ] VAL [r={16:0}, r={16:0}, r->reader=2] [L812] 0 r->writer = (r->writer + 1) % 4 VAL [\old(x)=2, r={16:0}, r={16:0}, r->writer=1, r->writer = (r->writer + 1) % 4=121, x=2] [L815] EXPR 1 r->q[ r->reader ] VAL [r={16:0}, r={16:0}, r->reader=2] [L812] 0 r->writer = (r->writer + 1) % 4 VAL [\old(x)=2, r={16:0}, r={16:0}, r->writer=1, r->writer = (r->writer + 1) % 4=121, x=2] [L815] EXPR 1 r->q[ r->reader ] VAL [r={16:0}, r={16:0}, r->reader=2] [L812] 0 r->writer = (r->writer + 1) % 4 VAL [\old(x)=2, r={16:0}, r={16:0}, r->writer=1, r->writer = (r->writer + 1) % 4=121, x=2] [L815] EXPR 1 r->q[ r->reader ] VAL [r={16:0}, r={16:0}, r->q[ r->reader ]=115, r->reader=2] [L815] 1 long x = r->q[ r->reader ]; VAL [r={16:0}, r={16:0}, r->q[ r->reader ]=115, r->reader=2] [L815] 1 long x = r->q[ r->reader ]; VAL [r={16:0}, r={16:0}, r->q[ r->reader ]=115, r->reader=2] [L845] RET 0 ring_enqueue( r, i + 1 ) [L815] 1 long x = r->q[ r->reader ]; VAL [r={16:0}, r={16:0}, r->q[ r->reader ]=115, r->reader=2] [L843] 0 ++i VAL [++i=2, arg={16:0}, arg={16:0}, i=1, r={16:0}] [L815] 1 long x = r->q[ r->reader ]; VAL [r={16:0}, r={16:0}, r->q[ r->reader ]=115, r->reader=2] [L843] 0 ++i VAL [++i=2, arg={16:0}, arg={16:0}, i=2, r={16:0}] [L815] 1 long x = r->q[ r->reader ]; VAL [r={16:0}, r={16:0}, r->q[ r->reader ]=115, r->reader=2] [L815] 1 long x = r->q[ r->reader ]; VAL [r={16:0}, r={16:0}, r->q[ r->reader ]=115, r->reader=2, x=115] [L843] COND TRUE 0 i < 8 VAL [arg={16:0}, arg={16:0}, i=2, r={16:0}] [L845] CALL 0 ring_enqueue( r, i + 1 ) [L816] EXPR 1 r->reader VAL [r={16:0}, r={16:0}, r->reader=2, x=115] [L816] EXPR 1 r->reader + 1 VAL [r={16:0}, r={16:0}, r->reader=2, x=115] [L816] EXPR 1 r->reader + 1 VAL [r={16:0}, r={16:0}, r->reader=2, x=115] [L816] EXPR 1 r->reader + 1 VAL [r={16:0}, r={16:0}, r->reader=2, x=115] [L810] EXPR 0 r->writer VAL [\old(x)=3, r={16:0}, r={16:0}, r->writer=2, x=3] [L816] EXPR 1 r->reader + 1 VAL [r={16:0}, r={16:0}, r->reader=2, x=115] [L810] EXPR 0 r->writer + 1 VAL [\old(x)=3, r={16:0}, r={16:0}, r->writer=2, x=3] [L816] EXPR 1 r->reader + 1 VAL [r={16:0}, r={16:0}, r->reader=2, x=115] [L810] EXPR 0 r->writer + 1 VAL [\old(x)=3, r={16:0}, r={16:0}, r->writer=2, x=3] [L816] 1 r->reader = (r->reader + 1) % 4 VAL [r={16:0}, r={16:0}, r->reader=2, x=115] [L810] EXPR 0 r->writer + 1 VAL [\old(x)=3, r={16:0}, r={16:0}, r->writer=2, x=3] [L810] EXPR 0 r->writer + 1 VAL [\old(x)=3, r={16:0}, r={16:0}, r->writer=2, x=3] [L816] 1 r->reader = (r->reader + 1) % 4 VAL [r={16:0}, r={16:0}, r->reader=2, r->reader = (r->reader + 1) % 4=122, x=115] [L810] EXPR 0 r->writer + 1 VAL [\old(x)=3, r={16:0}, r={16:0}, r->writer=2, x=3] [L816] 1 r->reader = (r->reader + 1) % 4 VAL [r={16:0}, r={16:0}, r->reader=2, r->reader = (r->reader + 1) % 4=122, x=115] [L810] EXPR 0 r->reader VAL [\old(x)=3, r={16:0}, r={16:0}, r->reader=3, r->writer=2, x=3] [L816] 1 r->reader = (r->reader + 1) % 4 VAL [r={16:0}, r={16:0}, r->reader=2, r->reader = (r->reader + 1) % 4=122, x=115] [L810] 0 (r->writer + 1) % 4 == r->reader VAL [\old(x)=3, r={16:0}, r={16:0}, r->reader=3, r->writer=2, x=3] [L816] 1 r->reader = (r->reader + 1) % 4 VAL [r={16:0}, r={16:0}, r->reader=2, r->reader = (r->reader + 1) % 4=122, x=115] [L810] 0 (r->writer + 1) % 4 == r->reader VAL [\old(x)=3, r={16:0}, r={16:0}, r->reader=3, r->writer=2, x=3] [L816] 1 r->reader = (r->reader + 1) % 4 VAL [r={16:0}, r={16:0}, r->reader=2, r->reader = (r->reader + 1) % 4=122, x=115] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. There could be a race between one of the statements * C: r->q[ r->writer ] = x [811] * C: r->reader + 1 [816] * C: long x = r->q[ r->reader ]; [815] * C: r->q[ r->reader ] [815] * C: r->writer = (r->writer + 1) % 4 [812] * C: r->q[ r->writer ] = x [811] * C: r->writer = (r->writer + 1) % 4 [812] * C: r->q[ r->reader ] [815] * C: r->reader + 1 [816] * C: (r->writer + 1) % 4 == r->reader [810] * C: r->writer = (r->writer + 1) % 4 [812] * C: r->writer + 1 [810] * C: r->writer + 1 [810] * C: long x = r->q[ r->reader ]; [815] * C: long x = r->q[ r->reader ]; [815] * C: r->writer + 1 [810] * C: r->writer + 1 [812] * C: r->writer = (r->writer + 1) % 4 [812] * C: r->reader + 1 [816] * C: long x = r->q[ r->reader ]; [815] * C: r->writer + 1 [812] * C: r->q[ r->writer ] [811] * C: r->reader = r->writer = 0 [823] * C: r->writer + 1 [812] * C: r->reader = r->writer = 0 [823] * C: r->q[ r->writer ] = x [811] * C: (r->writer + 1) % 4 == r->reader [810] * C: r->q[ r->writer ] [811] * C: r->writer + 1 [810] * C: (r->writer + 1) % 4 == r->reader [810] * C: r->q[ r->reader ] [815] * C: r->reader = r->writer = 0 [823] * C: r->writer = 0 [823] * C: r->q[ r->reader ] [815] * C: r->writer = 0 [823] * C: r->writer = 0 [823] * C: r->writer + 1 [812] * C: r->reader = r->writer = 0 [823] * C: r->writer = 0 [823] * C: r->q[ r->writer ] [811] * C: (r->writer + 1) % 4 == r->reader [810] * C: r->q[ r->writer ] = x [811] * C: r->q[ r->writer ] [811] * C: r->reader + 1 [816] and C: r->reader = (r->reader + 1) % 4 [816] - UnprovableResult [Line: 815]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 820]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 815]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 820]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 816]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: reader_nowait_fnThread1of1ForFork0 with 1 thread instances CFG has 3 procedures, 320 locations, 22 error locations. Started 1 CEGAR loops. OverallTime: 45.3s, OverallIterations: 16, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 12.3s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 161, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 27.9s InterpolantComputationTime, 4185 NumberOfCodeBlocks, 3683 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 4687 ConstructedInterpolants, 7 QuantifiedInterpolants, 26529 SizeOfPredicates, 35 NumberOfNonLiveVariables, 3073 ConjunctsInSsa, 120 ConjunctsInUnsatCore, 25 InterpolantComputations, 11 PerfectInterpolantSequences, 1294/3191 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-08 07:42:49,169 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2022-11-08 07:42:49,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc2c6246-8365-4424-b15f-6985d0d7376b/bin/ugemcutter-QpsTfqS70U/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE