./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/queue.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da6836a-a936-45d2-b2e2-dab24b3eb9a6/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da6836a-a936-45d2-b2e2-dab24b3eb9a6/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da6836a-a936-45d2-b2e2-dab24b3eb9a6/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da6836a-a936-45d2-b2e2-dab24b3eb9a6/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread/queue.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da6836a-a936-45d2-b2e2-dab24b3eb9a6/bin/utaipan-7li7fVZpFI/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da6836a-a936-45d2-b2e2-dab24b3eb9a6/bin/utaipan-7li7fVZpFI --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4d771c5dc4ab027f123135a7de4324b9be0c6bae288f44d0eaffc15d1836bd60 --- 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-5e519f3 [2022-11-03 02:30:39,410 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:30:39,413 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:30:39,466 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:30:39,467 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:30:39,472 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:30:39,474 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:30:39,479 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:30:39,482 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:30:39,490 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:30:39,492 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:30:39,495 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:30:39,495 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:30:39,499 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:30:39,502 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:30:39,504 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:30:39,506 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:30:39,507 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:30:39,509 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:30:39,520 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:30:39,523 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:30:39,525 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:30:39,527 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:30:39,529 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:30:39,534 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:30:39,534 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:30:39,535 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:30:39,537 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:30:39,537 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:30:39,538 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:30:39,539 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:30:39,541 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:30:39,543 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:30:39,544 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:30:39,545 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:30:39,546 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:30:39,547 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:30:39,547 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:30:39,547 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:30:39,548 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:30:39,549 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:30:39,550 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da6836a-a936-45d2-b2e2-dab24b3eb9a6/bin/utaipan-7li7fVZpFI/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-03 02:30:39,593 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:30:39,593 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:30:39,594 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:30:39,594 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:30:39,595 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:30:39,595 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:30:39,596 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:30:39,596 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:30:39,596 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:30:39,596 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:30:39,597 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:30:39,598 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:30:39,598 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:30:39,598 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:30:39,598 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:30:39,599 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:30:39,599 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:30:39,599 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:30:39,600 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:30:39,600 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 02:30:39,600 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-03 02:30:39,601 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:30:39,601 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 02:30:39,601 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:30:39,601 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:30:39,602 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:30:39,602 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:30:39,602 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-03 02:30:39,602 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 02:30:39,603 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:30:39,603 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:30:39,603 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:30:39,603 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:30:39,604 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:30:39,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:30:39,604 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:30:39,604 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:30:39,605 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:30:39,605 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:30:39,605 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:30:39,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:30:39,606 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:30:39,606 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:30:39,606 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_4da6836a-a936-45d2-b2e2-dab24b3eb9a6/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da6836a-a936-45d2-b2e2-dab24b3eb9a6/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d771c5dc4ab027f123135a7de4324b9be0c6bae288f44d0eaffc15d1836bd60 [2022-11-03 02:30:39,962 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:30:39,984 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:30:39,986 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:30:39,987 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:30:39,988 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:30:39,989 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da6836a-a936-45d2-b2e2-dab24b3eb9a6/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/pthread/queue.i [2022-11-03 02:30:40,064 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da6836a-a936-45d2-b2e2-dab24b3eb9a6/bin/utaipan-7li7fVZpFI/data/750306f4a/ebbca3712fbe4485a0a87b81e7933950/FLAG53b289e55 [2022-11-03 02:30:40,711 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:30:40,714 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da6836a-a936-45d2-b2e2-dab24b3eb9a6/sv-benchmarks/c/pthread/queue.i [2022-11-03 02:30:40,735 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da6836a-a936-45d2-b2e2-dab24b3eb9a6/bin/utaipan-7li7fVZpFI/data/750306f4a/ebbca3712fbe4485a0a87b81e7933950/FLAG53b289e55 [2022-11-03 02:30:40,941 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da6836a-a936-45d2-b2e2-dab24b3eb9a6/bin/utaipan-7li7fVZpFI/data/750306f4a/ebbca3712fbe4485a0a87b81e7933950 [2022-11-03 02:30:40,946 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:30:40,948 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:30:40,953 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:30:40,953 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:30:40,957 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:30:40,959 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:30:40" (1/1) ... [2022-11-03 02:30:40,962 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bea0d73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:40, skipping insertion in model container [2022-11-03 02:30:40,962 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:30:40" (1/1) ... [2022-11-03 02:30:40,972 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:30:41,016 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:30:41,624 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_4da6836a-a936-45d2-b2e2-dab24b3eb9a6/sv-benchmarks/c/pthread/queue.i[43284,43297] [2022-11-03 02:30:41,627 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_4da6836a-a936-45d2-b2e2-dab24b3eb9a6/sv-benchmarks/c/pthread/queue.i[43491,43504] [2022-11-03 02:30:41,640 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_4da6836a-a936-45d2-b2e2-dab24b3eb9a6/sv-benchmarks/c/pthread/queue.i[43772,43785] [2022-11-03 02:30:41,651 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:30:41,667 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:30:41,767 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_4da6836a-a936-45d2-b2e2-dab24b3eb9a6/sv-benchmarks/c/pthread/queue.i[43284,43297] [2022-11-03 02:30:41,770 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_4da6836a-a936-45d2-b2e2-dab24b3eb9a6/sv-benchmarks/c/pthread/queue.i[43491,43504] [2022-11-03 02:30:41,774 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_4da6836a-a936-45d2-b2e2-dab24b3eb9a6/sv-benchmarks/c/pthread/queue.i[43772,43785] [2022-11-03 02:30:41,778 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:30:41,835 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:30:41,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:41 WrapperNode [2022-11-03 02:30:41,836 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:30:41,838 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:30:41,838 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:30:41,839 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:30:41,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:41" (1/1) ... [2022-11-03 02:30:41,900 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:41" (1/1) ... [2022-11-03 02:30:41,960 INFO L138 Inliner]: procedures = 274, calls = 62, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 484 [2022-11-03 02:30:41,970 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:30:41,971 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:30:41,971 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:30:41,972 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:30:41,984 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:41" (1/1) ... [2022-11-03 02:30:41,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:41" (1/1) ... [2022-11-03 02:30:42,011 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:41" (1/1) ... [2022-11-03 02:30:42,015 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:41" (1/1) ... [2022-11-03 02:30:42,050 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:41" (1/1) ... [2022-11-03 02:30:42,068 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:41" (1/1) ... [2022-11-03 02:30:42,071 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:41" (1/1) ... [2022-11-03 02:30:42,074 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:41" (1/1) ... [2022-11-03 02:30:42,092 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:30:42,093 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:30:42,093 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:30:42,093 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:30:42,094 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:41" (1/1) ... [2022-11-03 02:30:42,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:30:42,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da6836a-a936-45d2-b2e2-dab24b3eb9a6/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:30:42,133 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da6836a-a936-45d2-b2e2-dab24b3eb9a6/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:30:42,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4da6836a-a936-45d2-b2e2-dab24b3eb9a6/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:30:42,190 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-11-03 02:30:42,191 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-11-03 02:30:42,191 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-11-03 02:30:42,191 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-11-03 02:30:42,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:30:42,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:30:42,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:30:42,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:30:42,192 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-03 02:30:42,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:30:42,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:30:42,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:30:42,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:30:42,195 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-03 02:30:42,367 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:30:42,369 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:30:43,364 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:30:43,376 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:30:43,377 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-03 02:30:43,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:30:43 BoogieIcfgContainer [2022-11-03 02:30:43,380 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:30:43,383 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:30:43,383 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:30:43,387 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:30:43,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:30:40" (1/3) ... [2022-11-03 02:30:43,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33b970a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:30:43, skipping insertion in model container [2022-11-03 02:30:43,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:41" (2/3) ... [2022-11-03 02:30:43,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33b970a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:30:43, skipping insertion in model container [2022-11-03 02:30:43,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:30:43" (3/3) ... [2022-11-03 02:30:43,391 INFO L112 eAbstractionObserver]: Analyzing ICFG queue.i [2022-11-03 02:30:43,402 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-03 02:30:43,414 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:30:43,415 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2022-11-03 02:30:43,415 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-03 02:30:43,654 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-03 02:30:43,719 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-03 02:30:43,732 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 547 places, 555 transitions, 1126 flow [2022-11-03 02:30:43,735 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 547 places, 555 transitions, 1126 flow [2022-11-03 02:30:43,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 547 places, 555 transitions, 1126 flow [2022-11-03 02:30:44,060 INFO L130 PetriNetUnfolder]: 15/553 cut-off events. [2022-11-03 02:30:44,061 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-03 02:30:44,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 562 conditions, 553 events. 15/553 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 801 event pairs, 0 based on Foata normal form. 0/494 useless extension candidates. Maximal degree in co-relation 421. Up to 2 conditions per place. [2022-11-03 02:30:44,164 INFO L118 LiptonReduction]: Number of co-enabled transitions 83848 [2022-11-03 02:31:22,285 WARN L234 SmtUtils]: Spent 8.66s on a formula simplification that was a NOOP. DAG size: 129 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:31:30,726 WARN L234 SmtUtils]: Spent 8.44s on a formula simplification that was a NOOP. DAG size: 125 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:31:44,815 WARN L234 SmtUtils]: Spent 14.09s on a formula simplification that was a NOOP. DAG size: 133 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:31:57,099 WARN L234 SmtUtils]: Spent 12.28s on a formula simplification that was a NOOP. DAG size: 129 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:32:47,481 WARN L234 SmtUtils]: Spent 50.32s on a formula simplification. DAG size of input: 233 DAG size of output: 222 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:33:05,947 WARN L234 SmtUtils]: Spent 18.46s on a formula simplification that was a NOOP. DAG size: 217 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:33:35,538 WARN L234 SmtUtils]: Spent 29.59s on a formula simplification. DAG size of input: 237 DAG size of output: 226 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:33:38,345 INFO L133 LiptonReduction]: Checked pairs total: 1391386 [2022-11-03 02:33:38,345 INFO L135 LiptonReduction]: Total number of compositions: 375 [2022-11-03 02:33:38,354 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 273 places, 276 transitions, 568 flow [2022-11-03 02:33:41,866 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 100812 states, 100169 states have (on average 2.948427158102806) internal successors, (295341), 100811 states have internal predecessors, (295341), 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) [2022-11-03 02:33:41,929 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:33:41,938 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=FINITE_AUTOMATA, 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;@6fcb0483, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:33:41,938 INFO L358 AbstractCegarLoop]: Starting to check reachability of 81 error locations. [2022-11-03 02:33:42,356 INFO L276 IsEmpty]: Start isEmpty. Operand has 100812 states, 100169 states have (on average 2.948427158102806) internal successors, (295341), 100811 states have internal predecessors, (295341), 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) [2022-11-03 02:33:42,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-03 02:33:42,362 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:33:42,363 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-03 02:33:42,364 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-11-03 02:33:42,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:33:42,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1968, now seen corresponding path program 1 times [2022-11-03 02:33:42,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:33:42,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123806327] [2022-11-03 02:33:42,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:33:42,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:33:42,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:33:42,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:33:42,563 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:33:42,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123806327] [2022-11-03 02:33:42,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123806327] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:33:42,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:33:42,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-03 02:33:42,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493265673] [2022-11-03 02:33:42,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:33:42,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 02:33:42,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:33:42,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 02:33:42,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 02:33:42,799 INFO L87 Difference]: Start difference. First operand has 100812 states, 100169 states have (on average 2.948427158102806) internal successors, (295341), 100811 states have internal predecessors, (295341), 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) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-11-03 02:33:44,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:33:44,960 INFO L93 Difference]: Finished difference Result 100805 states and 293428 transitions. [2022-11-03 02:33:44,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 02:33:44,976 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) Word has length 1 [2022-11-03 02:33:44,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:33:46,356 INFO L225 Difference]: With dead ends: 100805 [2022-11-03 02:33:46,356 INFO L226 Difference]: Without dead ends: 100805 [2022-11-03 02:33:46,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 02:33:46,361 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:33:46,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 176 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 02:33:47,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100805 states. [2022-11-03 02:33:50,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100805 to 100805. [2022-11-03 02:33:50,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100805 states, 100169 states have (on average 2.929329433257794) internal successors, (293428), 100804 states have internal predecessors, (293428), 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) [2022-11-03 02:33:52,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100805 states to 100805 states and 293428 transitions. [2022-11-03 02:33:52,022 INFO L78 Accepts]: Start accepts. Automaton has 100805 states and 293428 transitions. Word has length 1 [2022-11-03 02:33:52,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:33:52,023 INFO L495 AbstractCegarLoop]: Abstraction has 100805 states and 293428 transitions. [2022-11-03 02:33:52,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-11-03 02:33:52,023 INFO L276 IsEmpty]: Start isEmpty. Operand 100805 states and 293428 transitions. [2022-11-03 02:33:52,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-03 02:33:52,025 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:33:52,025 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:33:52,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:33:52,026 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-11-03 02:33:52,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:33:52,026 INFO L85 PathProgramCache]: Analyzing trace with hash 286399557, now seen corresponding path program 1 times [2022-11-03 02:33:52,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:33:52,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403968119] [2022-11-03 02:33:52,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:33:52,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:33:52,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:33:52,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:33:52,307 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:33:52,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403968119] [2022-11-03 02:33:52,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403968119] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:33:52,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:33:52,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:33:52,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302390118] [2022-11-03 02:33:52,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:33:52,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:33:52,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:33:52,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:33:52,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:33:52,312 INFO L87 Difference]: Start difference. First operand 100805 states and 293428 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:33:54,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:33:54,009 INFO L93 Difference]: Finished difference Result 146868 states and 427786 transitions. [2022-11-03 02:33:54,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:33:54,010 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-03 02:33:54,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:33:54,673 INFO L225 Difference]: With dead ends: 146868 [2022-11-03 02:33:54,674 INFO L226 Difference]: Without dead ends: 146868 [2022-11-03 02:33:54,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:33:54,675 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 245 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:33:54,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 463 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-03 02:33:55,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146868 states. [2022-11-03 02:33:58,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146868 to 100813. [2022-11-03 02:33:58,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100813 states, 100199 states have (on average 2.93507919240711) internal successors, (294092), 100812 states have internal predecessors, (294092), 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) [2022-11-03 02:33:59,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100813 states to 100813 states and 294092 transitions. [2022-11-03 02:33:59,530 INFO L78 Accepts]: Start accepts. Automaton has 100813 states and 294092 transitions. Word has length 8 [2022-11-03 02:33:59,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:33:59,532 INFO L495 AbstractCegarLoop]: Abstraction has 100813 states and 294092 transitions. [2022-11-03 02:33:59,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:33:59,533 INFO L276 IsEmpty]: Start isEmpty. Operand 100813 states and 294092 transitions. [2022-11-03 02:33:59,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-03 02:33:59,534 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:33:59,534 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:33:59,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:33:59,535 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-11-03 02:33:59,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:33:59,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1842853430, now seen corresponding path program 1 times [2022-11-03 02:33:59,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:33:59,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939558635] [2022-11-03 02:33:59,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:33:59,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:33:59,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:34:00,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:34:00,360 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:34:00,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939558635] [2022-11-03 02:34:00,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939558635] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:34:00,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:34:00,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:34:00,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363686834] [2022-11-03 02:34:00,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:34:00,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:34:00,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:34:00,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:34:00,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:34:00,363 INFO L87 Difference]: Start difference. First operand 100813 states and 294092 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:34:03,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:34:03,607 INFO L93 Difference]: Finished difference Result 129041 states and 377202 transitions. [2022-11-03 02:34:03,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:34:03,619 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-03 02:34:03,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:34:04,183 INFO L225 Difference]: With dead ends: 129041 [2022-11-03 02:34:04,183 INFO L226 Difference]: Without dead ends: 129041 [2022-11-03 02:34:04,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:34:04,191 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 232 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 1302 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 1485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 1302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:34:04,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 245 Invalid, 1485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 1302 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-03 02:34:04,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129041 states. [2022-11-03 02:34:07,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129041 to 115489. [2022-11-03 02:34:07,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115489 states, 114881 states have (on average 2.941200024373047) internal successors, (337888), 115488 states have internal predecessors, (337888), 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) [2022-11-03 02:34:07,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115489 states to 115489 states and 337888 transitions. [2022-11-03 02:34:07,791 INFO L78 Accepts]: Start accepts. Automaton has 115489 states and 337888 transitions. Word has length 9 [2022-11-03 02:34:07,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:34:07,791 INFO L495 AbstractCegarLoop]: Abstraction has 115489 states and 337888 transitions. [2022-11-03 02:34:07,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:34:07,791 INFO L276 IsEmpty]: Start isEmpty. Operand 115489 states and 337888 transitions. [2022-11-03 02:34:07,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-03 02:34:07,793 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:34:07,793 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:34:07,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:34:07,794 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-11-03 02:34:07,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:34:07,794 INFO L85 PathProgramCache]: Analyzing trace with hash -499488954, now seen corresponding path program 1 times [2022-11-03 02:34:07,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:34:07,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071884203] [2022-11-03 02:34:07,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:34:07,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:34:07,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:34:08,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:34:08,875 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:34:08,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071884203] [2022-11-03 02:34:08,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071884203] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:34:08,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:34:08,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:34:08,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343923512] [2022-11-03 02:34:08,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:34:08,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:34:08,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:34:08,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:34:08,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:34:08,878 INFO L87 Difference]: Start difference. First operand 115489 states and 337888 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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) [2022-11-03 02:34:13,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:34:13,605 INFO L93 Difference]: Finished difference Result 187664 states and 543649 transitions. [2022-11-03 02:34:13,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:34:13,606 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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) Word has length 10 [2022-11-03 02:34:13,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:34:14,336 INFO L225 Difference]: With dead ends: 187664 [2022-11-03 02:34:14,336 INFO L226 Difference]: Without dead ends: 187664 [2022-11-03 02:34:14,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:34:14,337 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 519 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 2134 mSolverCounterSat, 277 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 519 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 2411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 277 IncrementalHoareTripleChecker+Valid, 2134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:34:14,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [519 Valid, 334 Invalid, 2411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [277 Valid, 2134 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-03 02:34:14,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187664 states. [2022-11-03 02:34:19,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187664 to 172716. [2022-11-03 02:34:19,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172716 states, 172108 states have (on average 2.9800880842261837) internal successors, (512897), 172715 states have internal predecessors, (512897), 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) [2022-11-03 02:34:20,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172716 states to 172716 states and 512897 transitions. [2022-11-03 02:34:20,073 INFO L78 Accepts]: Start accepts. Automaton has 172716 states and 512897 transitions. Word has length 10 [2022-11-03 02:34:20,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:34:20,074 INFO L495 AbstractCegarLoop]: Abstraction has 172716 states and 512897 transitions. [2022-11-03 02:34:20,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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) [2022-11-03 02:34:20,074 INFO L276 IsEmpty]: Start isEmpty. Operand 172716 states and 512897 transitions. [2022-11-03 02:34:20,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-03 02:34:20,078 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:34:20,079 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:34:20,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:34:20,079 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t2Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-11-03 02:34:20,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:34:20,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1057197007, now seen corresponding path program 1 times [2022-11-03 02:34:20,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:34:20,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681684991] [2022-11-03 02:34:20,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:34:20,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:34:20,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:34:20,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:34:20,588 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:34:20,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681684991] [2022-11-03 02:34:20,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681684991] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:34:20,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:34:20,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:34:20,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51485229] [2022-11-03 02:34:20,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:34:20,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:34:20,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:34:20,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:34:20,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:34:20,591 INFO L87 Difference]: Start difference. First operand 172716 states and 512897 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:34:26,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:34:26,178 INFO L93 Difference]: Finished difference Result 255340 states and 757123 transitions. [2022-11-03 02:34:26,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:34:26,179 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-03 02:34:26,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:34:27,303 INFO L225 Difference]: With dead ends: 255340 [2022-11-03 02:34:27,303 INFO L226 Difference]: Without dead ends: 255340 [2022-11-03 02:34:27,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:34:27,304 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 415 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 1677 mSolverCounterSat, 290 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 1967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 290 IncrementalHoareTripleChecker+Valid, 1677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:34:27,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [415 Valid, 239 Invalid, 1967 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [290 Valid, 1677 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-11-03 02:34:27,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255340 states.