./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/queue_ok_longer.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4e7fbc69 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_3ad3a66a-ddd4-4d08-ba89-7e1664528c3a/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad3a66a-ddd4-4d08-ba89-7e1664528c3a/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad3a66a-ddd4-4d08-ba89-7e1664528c3a/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad3a66a-ddd4-4d08-ba89-7e1664528c3a/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread/queue_ok_longer.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad3a66a-ddd4-4d08-ba89-7e1664528c3a/bin/utaipan-Q6hlc19bkW/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad3a66a-ddd4-4d08-ba89-7e1664528c3a/bin/utaipan-Q6hlc19bkW --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 f58af1aa15d4bec1241042c84c595fb9585ff7c461dd0b44f9fde0638838779a --- 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-4e7fbc6 [2022-11-23 14:04:55,856 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:04:55,858 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:04:55,877 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:04:55,877 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:04:55,878 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:04:55,879 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:04:55,881 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:04:55,883 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:04:55,884 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:04:55,885 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:04:55,886 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:04:55,886 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:04:55,887 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:04:55,888 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:04:55,889 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:04:55,890 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:04:55,891 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:04:55,893 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:04:55,894 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:04:55,900 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:04:55,901 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:04:55,902 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:04:55,903 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:04:55,906 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:04:55,907 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:04:55,907 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:04:55,908 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:04:55,909 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:04:55,910 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:04:55,910 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:04:55,911 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:04:55,911 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:04:55,912 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:04:55,913 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:04:55,914 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:04:55,914 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:04:55,915 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:04:55,915 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:04:55,916 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:04:55,917 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:04:55,918 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad3a66a-ddd4-4d08-ba89-7e1664528c3a/bin/utaipan-Q6hlc19bkW/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-23 14:04:55,940 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:04:55,940 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:04:55,940 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:04:55,941 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:04:55,941 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:04:55,941 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:04:55,942 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:04:55,942 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:04:55,942 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:04:55,942 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:04:55,943 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:04:55,943 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:04:55,943 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:04:55,943 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:04:55,943 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:04:55,944 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:04:55,944 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:04:55,944 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:04:55,945 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:04:55,945 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:04:55,945 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 14:04:55,946 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:04:55,946 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:04:55,946 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:04:55,946 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:04:55,946 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:04:55,947 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:04:55,947 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-23 14:04:55,947 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:04:55,947 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:04:55,948 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:04:55,948 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:04:55,948 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:04:55,948 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:04:55,949 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:04:55,949 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:04:55,949 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:04:55,949 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:04:55,949 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:04:55,950 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:04:55,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:04:55,950 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:04:55,950 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:04:55,951 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_3ad3a66a-ddd4-4d08-ba89-7e1664528c3a/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad3a66a-ddd4-4d08-ba89-7e1664528c3a/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f58af1aa15d4bec1241042c84c595fb9585ff7c461dd0b44f9fde0638838779a [2022-11-23 14:04:56,187 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:04:56,213 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:04:56,215 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:04:56,216 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:04:56,217 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:04:56,218 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad3a66a-ddd4-4d08-ba89-7e1664528c3a/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/pthread/queue_ok_longer.i [2022-11-23 14:04:59,354 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:04:59,637 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:04:59,638 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad3a66a-ddd4-4d08-ba89-7e1664528c3a/sv-benchmarks/c/pthread/queue_ok_longer.i [2022-11-23 14:04:59,662 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad3a66a-ddd4-4d08-ba89-7e1664528c3a/bin/utaipan-Q6hlc19bkW/data/81944fb8e/0e1eebadb10c4ca0a2278aeacfb6474a/FLAG59c5be0a7 [2022-11-23 14:04:59,684 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad3a66a-ddd4-4d08-ba89-7e1664528c3a/bin/utaipan-Q6hlc19bkW/data/81944fb8e/0e1eebadb10c4ca0a2278aeacfb6474a [2022-11-23 14:04:59,689 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:04:59,691 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:04:59,696 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:04:59,696 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:04:59,701 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:04:59,703 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:04:59" (1/1) ... [2022-11-23 14:04:59,704 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d05280e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:59, skipping insertion in model container [2022-11-23 14:04:59,705 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:04:59" (1/1) ... [2022-11-23 14:04:59,713 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:04:59,772 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:05:00,331 WARN L237 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_3ad3a66a-ddd4-4d08-ba89-7e1664528c3a/sv-benchmarks/c/pthread/queue_ok_longer.i[43272,43285] [2022-11-23 14:05:00,334 WARN L237 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_3ad3a66a-ddd4-4d08-ba89-7e1664528c3a/sv-benchmarks/c/pthread/queue_ok_longer.i[43545,43558] [2022-11-23 14:05:00,339 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:05:00,351 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:05:00,424 WARN L237 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_3ad3a66a-ddd4-4d08-ba89-7e1664528c3a/sv-benchmarks/c/pthread/queue_ok_longer.i[43272,43285] [2022-11-23 14:05:00,428 WARN L237 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_3ad3a66a-ddd4-4d08-ba89-7e1664528c3a/sv-benchmarks/c/pthread/queue_ok_longer.i[43545,43558] [2022-11-23 14:05:00,432 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:05:00,496 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:05:00,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:00 WrapperNode [2022-11-23 14:05:00,497 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:05:00,498 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:05:00,498 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:05:00,498 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:05:00,506 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:00" (1/1) ... [2022-11-23 14:05:00,531 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:00" (1/1) ... [2022-11-23 14:05:00,578 INFO L138 Inliner]: procedures = 274, calls = 57, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 387 [2022-11-23 14:05:00,579 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:05:00,580 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:05:00,580 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:05:00,580 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:05:00,589 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:00" (1/1) ... [2022-11-23 14:05:00,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:00" (1/1) ... [2022-11-23 14:05:00,598 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:00" (1/1) ... [2022-11-23 14:05:00,599 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:00" (1/1) ... [2022-11-23 14:05:00,627 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:00" (1/1) ... [2022-11-23 14:05:00,632 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:00" (1/1) ... [2022-11-23 14:05:00,635 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:00" (1/1) ... [2022-11-23 14:05:00,638 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:00" (1/1) ... [2022-11-23 14:05:00,643 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:05:00,644 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:05:00,644 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:05:00,644 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:05:00,645 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:00" (1/1) ... [2022-11-23 14:05:00,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:05:00,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad3a66a-ddd4-4d08-ba89-7e1664528c3a/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:05:00,698 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad3a66a-ddd4-4d08-ba89-7e1664528c3a/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:05:00,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad3a66a-ddd4-4d08-ba89-7e1664528c3a/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:05:00,766 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-11-23 14:05:00,767 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-11-23 14:05:00,767 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-11-23 14:05:00,767 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-11-23 14:05:00,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:05:00,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:05:00,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 14:05:00,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 14:05:00,768 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-23 14:05:00,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:05:00,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:05:00,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:05:00,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:05:00,770 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 14:05:00,922 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:05:00,924 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:05:01,707 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:05:01,717 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:05:01,717 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-23 14:05:01,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:05:01 BoogieIcfgContainer [2022-11-23 14:05:01,719 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:05:01,722 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:05:01,722 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:05:01,725 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:05:01,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:04:59" (1/3) ... [2022-11-23 14:05:01,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3068dc9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:05:01, skipping insertion in model container [2022-11-23 14:05:01,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:00" (2/3) ... [2022-11-23 14:05:01,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3068dc9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:05:01, skipping insertion in model container [2022-11-23 14:05:01,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:05:01" (3/3) ... [2022-11-23 14:05:01,728 INFO L112 eAbstractionObserver]: Analyzing ICFG queue_ok_longer.i [2022-11-23 14:05:01,736 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 14:05:01,746 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:05:01,746 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 35 error locations. [2022-11-23 14:05:01,746 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 14:05:01,889 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-23 14:05:01,927 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 14:05:01,942 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 441 places, 447 transitions, 910 flow [2022-11-23 14:05:01,946 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 441 places, 447 transitions, 910 flow [2022-11-23 14:05:01,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 441 places, 447 transitions, 910 flow [2022-11-23 14:05:02,254 INFO L130 PetriNetUnfolder]: 13/445 cut-off events. [2022-11-23 14:05:02,255 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-23 14:05:02,271 INFO L83 FinitePrefix]: Finished finitePrefix Result has 454 conditions, 445 events. 13/445 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 784 event pairs, 0 based on Foata normal form. 0/397 useless extension candidates. Maximal degree in co-relation 315. Up to 3 conditions per place. [2022-11-23 14:05:02,294 INFO L119 LiptonReduction]: Number of co-enabled transitions 53036 [2022-11-23 14:05:35,191 WARN L233 SmtUtils]: Spent 5.17s on a formula simplification that was a NOOP. DAG size: 136 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 14:05:53,263 WARN L233 SmtUtils]: Spent 7.18s on a formula simplification. DAG size of input: 196 DAG size of output: 192 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 14:06:03,479 WARN L233 SmtUtils]: Spent 7.54s on a formula simplification. DAG size of input: 196 DAG size of output: 192 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 14:06:18,411 WARN L233 SmtUtils]: Spent 10.77s on a formula simplification. DAG size of input: 234 DAG size of output: 223 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 14:06:25,300 WARN L233 SmtUtils]: Spent 6.89s on a formula simplification that was a NOOP. DAG size: 207 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 14:06:42,888 WARN L233 SmtUtils]: Spent 17.59s on a formula simplification. DAG size of input: 244 DAG size of output: 231 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 14:06:56,937 WARN L233 SmtUtils]: Spent 14.05s on a formula simplification that was a NOOP. DAG size: 213 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 14:06:57,577 INFO L134 LiptonReduction]: Checked pairs total: 456867 [2022-11-23 14:06:57,578 INFO L136 LiptonReduction]: Total number of compositions: 308 [2022-11-23 14:06:57,587 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 206 places, 206 transitions, 428 flow [2022-11-23 14:06:59,489 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 59044 states, 58633 states have (on average 2.9394709463953745) internal successors, (172350), 59043 states have internal predecessors, (172350), 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) [2022-11-23 14:06:59,527 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:06:59,539 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;@2a48f09f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:06:59,539 INFO L358 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2022-11-23 14:06:59,601 INFO L276 IsEmpty]: Start isEmpty. Operand has 59044 states, 58633 states have (on average 2.9394709463953745) internal successors, (172350), 59043 states have internal predecessors, (172350), 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) [2022-11-23 14:06:59,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-23 14:06:59,607 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:06:59,607 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-23 14:06:59,608 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-11-23 14:06:59,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:06:59,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1583, now seen corresponding path program 1 times [2022-11-23 14:06:59,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:06:59,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438898009] [2022-11-23 14:06:59,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:06:59,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:06:59,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:06:59,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:06:59,994 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:06:59,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438898009] [2022-11-23 14:06:59,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438898009] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:07:00,011 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:07:00,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-23 14:07:00,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461091868] [2022-11-23 14:07:00,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:07:00,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 14:07:00,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:07:00,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 14:07:00,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:07:00,255 INFO L87 Difference]: Start difference. First operand has 59044 states, 58633 states have (on average 2.9394709463953745) internal successors, (172350), 59043 states have internal predecessors, (172350), 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) [2022-11-23 14:07:02,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:07:02,092 INFO L93 Difference]: Finished difference Result 59037 states and 172343 transitions. [2022-11-23 14:07:02,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 14:07:02,103 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 [2022-11-23 14:07:02,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:07:02,827 INFO L225 Difference]: With dead ends: 59037 [2022-11-23 14:07:02,827 INFO L226 Difference]: Without dead ends: 59037 [2022-11-23 14:07:02,828 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 [2022-11-23 14:07:02,837 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:07:02,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 130 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 14:07:03,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59037 states. [2022-11-23 14:07:05,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59037 to 59037. [2022-11-23 14:07:05,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59037 states, 58633 states have (on average 2.9393515597018745) internal successors, (172343), 59036 states have internal predecessors, (172343), 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) [2022-11-23 14:07:06,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59037 states to 59037 states and 172343 transitions. [2022-11-23 14:07:06,084 INFO L78 Accepts]: Start accepts. Automaton has 59037 states and 172343 transitions. Word has length 1 [2022-11-23 14:07:06,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:07:06,085 INFO L495 AbstractCegarLoop]: Abstraction has 59037 states and 172343 transitions. [2022-11-23 14:07:06,085 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) [2022-11-23 14:07:06,085 INFO L276 IsEmpty]: Start isEmpty. Operand 59037 states and 172343 transitions. [2022-11-23 14:07:06,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-23 14:07:06,086 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:07:06,086 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 14:07:06,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:07:06,087 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-11-23 14:07:06,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:07:06,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1506156850, now seen corresponding path program 1 times [2022-11-23 14:07:06,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:07:06,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656442125] [2022-11-23 14:07:06,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:07:06,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:07:06,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:07:06,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:07:06,357 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:07:06,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656442125] [2022-11-23 14:07:06,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656442125] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:07:06,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:07:06,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:07:06,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419965387] [2022-11-23 14:07:06,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:07:06,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:07:06,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:07:06,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:07:06,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:07:06,361 INFO L87 Difference]: Start difference. First operand 59037 states and 172343 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:07:07,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:07:07,507 INFO L93 Difference]: Finished difference Result 61978 states and 178986 transitions. [2022-11-23 14:07:07,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:07:07,508 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-23 14:07:07,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:07:07,893 INFO L225 Difference]: With dead ends: 61978 [2022-11-23 14:07:07,894 INFO L226 Difference]: Without dead ends: 61978 [2022-11-23 14:07:07,894 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 [2022-11-23 14:07:07,901 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 181 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-23 14:07:07,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 321 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-23 14:07:08,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61978 states. [2022-11-23 14:07:09,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61978 to 58363. [2022-11-23 14:07:09,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58363 states, 57985 states have (on average 2.9386737949469692) internal successors, (170399), 58362 states have internal predecessors, (170399), 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) [2022-11-23 14:07:10,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58363 states to 58363 states and 170399 transitions. [2022-11-23 14:07:10,130 INFO L78 Accepts]: Start accepts. Automaton has 58363 states and 170399 transitions. Word has length 5 [2022-11-23 14:07:10,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:07:10,130 INFO L495 AbstractCegarLoop]: Abstraction has 58363 states and 170399 transitions. [2022-11-23 14:07:10,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:07:10,131 INFO L276 IsEmpty]: Start isEmpty. Operand 58363 states and 170399 transitions. [2022-11-23 14:07:10,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-23 14:07:10,132 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:07:10,132 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:07:10,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 14:07:10,132 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-11-23 14:07:10,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:07:10,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1662949, now seen corresponding path program 1 times [2022-11-23 14:07:10,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:07:10,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480030094] [2022-11-23 14:07:10,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:07:10,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:07:10,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:07:10,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:07:10,365 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:07:10,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480030094] [2022-11-23 14:07:10,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480030094] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:07:10,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:07:10,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:07:10,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309007887] [2022-11-23 14:07:10,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:07:10,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:07:10,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:07:10,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:07:10,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:07:10,368 INFO L87 Difference]: Start difference. First operand 58363 states and 170399 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-11-23 14:07:11,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:07:11,579 INFO L93 Difference]: Finished difference Result 61641 states and 178123 transitions. [2022-11-23 14:07:11,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:07:11,581 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2022-11-23 14:07:11,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:07:11,899 INFO L225 Difference]: With dead ends: 61641 [2022-11-23 14:07:11,899 INFO L226 Difference]: Without dead ends: 61641 [2022-11-23 14:07:11,899 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 [2022-11-23 14:07:11,900 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 178 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:07:11,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 315 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 14:07:12,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61641 states. [2022-11-23 14:07:13,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61641 to 57811. [2022-11-23 14:07:13,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57811 states, 57453 states have (on average 2.938262579847876) internal successors, (168812), 57810 states have internal predecessors, (168812), 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) [2022-11-23 14:07:13,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57811 states to 57811 states and 168812 transitions. [2022-11-23 14:07:13,746 INFO L78 Accepts]: Start accepts. Automaton has 57811 states and 168812 transitions. Word has length 7 [2022-11-23 14:07:13,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:07:13,747 INFO L495 AbstractCegarLoop]: Abstraction has 57811 states and 168812 transitions. [2022-11-23 14:07:13,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-11-23 14:07:13,747 INFO L276 IsEmpty]: Start isEmpty. Operand 57811 states and 168812 transitions. [2022-11-23 14:07:13,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-23 14:07:13,748 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:07:13,749 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:07:13,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 14:07:13,749 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-11-23 14:07:13,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:07:13,750 INFO L85 PathProgramCache]: Analyzing trace with hash -586879383, now seen corresponding path program 1 times [2022-11-23 14:07:13,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:07:13,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467364287] [2022-11-23 14:07:13,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:07:13,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:07:13,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:07:13,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:07:13,876 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:07:13,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467364287] [2022-11-23 14:07:13,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467364287] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:07:13,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:07:13,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:07:13,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953599812] [2022-11-23 14:07:13,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:07:13,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:07:13,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:07:13,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:07:13,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:07:13,878 INFO L87 Difference]: Start difference. First operand 57811 states and 168812 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:07:15,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:07:15,189 INFO L93 Difference]: Finished difference Result 104531 states and 305286 transitions. [2022-11-23 14:07:15,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:07:15,190 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-23 14:07:15,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:07:15,660 INFO L225 Difference]: With dead ends: 104531 [2022-11-23 14:07:15,660 INFO L226 Difference]: Without dead ends: 104531 [2022-11-23 14:07:15,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:07:15,662 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 167 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:07:15,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 319 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 14:07:15,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104531 states. [2022-11-23 14:07:17,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104531 to 58541. [2022-11-23 14:07:17,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58541 states, 58183 states have (on average 2.9378512623962325) internal successors, (170933), 58540 states have internal predecessors, (170933), 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) [2022-11-23 14:07:17,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58541 states to 58541 states and 170933 transitions. [2022-11-23 14:07:17,767 INFO L78 Accepts]: Start accepts. Automaton has 58541 states and 170933 transitions. Word has length 9 [2022-11-23 14:07:17,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:07:17,768 INFO L495 AbstractCegarLoop]: Abstraction has 58541 states and 170933 transitions. [2022-11-23 14:07:17,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:07:17,768 INFO L276 IsEmpty]: Start isEmpty. Operand 58541 states and 170933 transitions. [2022-11-23 14:07:17,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-23 14:07:17,769 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:07:17,769 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:07:17,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 14:07:17,770 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-11-23 14:07:17,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:07:17,770 INFO L85 PathProgramCache]: Analyzing trace with hash 696568738, now seen corresponding path program 1 times [2022-11-23 14:07:17,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:07:17,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291652059] [2022-11-23 14:07:17,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:07:17,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:07:17,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:07:18,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:07:18,957 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:07:18,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291652059] [2022-11-23 14:07:18,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291652059] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:07:18,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:07:18,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:07:18,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11433475] [2022-11-23 14:07:18,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:07:18,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 14:07:18,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:07:18,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 14:07:18,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:07:18,960 INFO L87 Difference]: Start difference. First operand 58541 states and 170933 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) [2022-11-23 14:07:22,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:07:22,175 INFO L93 Difference]: Finished difference Result 95127 states and 274854 transitions. [2022-11-23 14:07:22,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 14:07:22,176 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 [2022-11-23 14:07:22,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:07:22,896 INFO L225 Difference]: With dead ends: 95127 [2022-11-23 14:07:22,896 INFO L226 Difference]: Without dead ends: 95127 [2022-11-23 14:07:22,896 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 [2022-11-23 14:07:22,897 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 389 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 2249 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 2450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 2249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-23 14:07:22,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [389 Valid, 336 Invalid, 2450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [201 Valid, 2249 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-23 14:07:23,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95127 states. [2022-11-23 14:07:24,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95127 to 87211. [2022-11-23 14:07:25,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87211 states, 86853 states have (on average 2.977214373711904) internal successors, (258580), 87210 states have internal predecessors, (258580), 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) [2022-11-23 14:07:25,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87211 states to 87211 states and 258580 transitions. [2022-11-23 14:07:25,346 INFO L78 Accepts]: Start accepts. Automaton has 87211 states and 258580 transitions. Word has length 10 [2022-11-23 14:07:25,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:07:25,347 INFO L495 AbstractCegarLoop]: Abstraction has 87211 states and 258580 transitions. [2022-11-23 14:07:25,347 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) [2022-11-23 14:07:25,347 INFO L276 IsEmpty]: Start isEmpty. Operand 87211 states and 258580 transitions. [2022-11-23 14:07:25,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-23 14:07:25,349 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:07:25,350 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:07:25,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 14:07:25,350 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t2Err12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-11-23 14:07:25,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:07:25,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1786283043, now seen corresponding path program 1 times [2022-11-23 14:07:25,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:07:25,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524145016] [2022-11-23 14:07:25,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:07:25,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:07:25,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:07:25,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:07:25,441 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:07:25,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524145016] [2022-11-23 14:07:25,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524145016] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:07:25,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:07:25,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:07:25,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923299120] [2022-11-23 14:07:25,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:07:25,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:07:25,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:07:25,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:07:25,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:07:25,443 INFO L87 Difference]: Start difference. First operand 87211 states and 258580 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:07:27,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:07:27,426 INFO L93 Difference]: Finished difference Result 159713 states and 472932 transitions. [2022-11-23 14:07:27,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:07:27,426 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-23 14:07:27,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:07:27,987 INFO L225 Difference]: With dead ends: 159713 [2022-11-23 14:07:27,987 INFO L226 Difference]: Without dead ends: 159713 [2022-11-23 14:07:27,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:07:27,988 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 172 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:07:27,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 315 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-23 14:07:29,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159713 states. [2022-11-23 14:07:31,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159713 to 88137. [2022-11-23 14:07:31,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88137 states, 87779 states have (on average 2.9766800715433077) internal successors, (261290), 88136 states have internal predecessors, (261290), 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) [2022-11-23 14:07:32,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88137 states to 88137 states and 261290 transitions. [2022-11-23 14:07:32,255 INFO L78 Accepts]: Start accepts. Automaton has 88137 states and 261290 transitions. Word has length 11 [2022-11-23 14:07:32,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:07:32,255 INFO L495 AbstractCegarLoop]: Abstraction has 88137 states and 261290 transitions. [2022-11-23 14:07:32,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:07:32,256 INFO L276 IsEmpty]: Start isEmpty. Operand 88137 states and 261290 transitions. [2022-11-23 14:07:32,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-23 14:07:32,274 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:07:32,274 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:07:32,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 14:07:32,275 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t1Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-11-23 14:07:32,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:07:32,276 INFO L85 PathProgramCache]: Analyzing trace with hash -195558751, now seen corresponding path program 1 times [2022-11-23 14:07:32,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:07:32,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502476723] [2022-11-23 14:07:32,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:07:32,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:07:32,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:07:32,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:07:32,892 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:07:32,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502476723] [2022-11-23 14:07:32,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502476723] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:07:32,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:07:32,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:07:32,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486937210] [2022-11-23 14:07:32,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:07:32,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 14:07:32,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:07:32,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 14:07:32,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:07:32,895 INFO L87 Difference]: Start difference. First operand 88137 states and 261290 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:07:35,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:07:35,049 INFO L93 Difference]: Finished difference Result 111651 states and 331426 transitions. [2022-11-23 14:07:35,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 14:07:35,050 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-23 14:07:35,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:07:35,453 INFO L225 Difference]: With dead ends: 111651 [2022-11-23 14:07:35,453 INFO L226 Difference]: Without dead ends: 111651 [2022-11-23 14:07:35,453 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 [2022-11-23 14:07:35,454 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 236 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 1109 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 1293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 1109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:07:35,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 204 Invalid, 1293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 1109 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-23 14:07:36,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111651 states. [2022-11-23 14:07:38,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111651 to 100299. [2022-11-23 14:07:38,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100299 states, 99941 states have (on average 2.9822795449315094) internal successors, (298052), 100298 states have internal predecessors, (298052), 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) [2022-11-23 14:07:38,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100299 states to 100299 states and 298052 transitions. [2022-11-23 14:07:38,762 INFO L78 Accepts]: Start accepts. Automaton has 100299 states and 298052 transitions. Word has length 12 [2022-11-23 14:07:38,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:07:38,762 INFO L495 AbstractCegarLoop]: Abstraction has 100299 states and 298052 transitions. [2022-11-23 14:07:38,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:07:38,763 INFO L276 IsEmpty]: Start isEmpty. Operand 100299 states and 298052 transitions. [2022-11-23 14:07:38,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-23 14:07:38,765 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:07:38,765 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:07:38,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 14:07:38,765 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t2Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-11-23 14:07:38,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:07:38,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1555181258, now seen corresponding path program 1 times [2022-11-23 14:07:38,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:07:38,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112548137] [2022-11-23 14:07:38,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:07:38,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:07:38,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:07:39,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:07:39,099 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:07:39,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112548137] [2022-11-23 14:07:39,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112548137] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:07:39,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:07:39,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:07:39,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384237662] [2022-11-23 14:07:39,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:07:39,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 14:07:39,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:07:39,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 14:07:39,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:07:39,102 INFO L87 Difference]: Start difference. First operand 100299 states and 298052 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) [2022-11-23 14:07:41,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:07:41,836 INFO L93 Difference]: Finished difference Result 139973 states and 415063 transitions. [2022-11-23 14:07:41,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 14:07:41,836 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 [2022-11-23 14:07:41,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:07:42,316 INFO L225 Difference]: With dead ends: 139973 [2022-11-23 14:07:42,317 INFO L226 Difference]: Without dead ends: 139973 [2022-11-23 14:07:42,317 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 [2022-11-23 14:07:42,317 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 254 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 1105 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 1240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 1105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:07:42,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 201 Invalid, 1240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 1105 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-23 14:07:43,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139973 states. [2022-11-23 14:07:45,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139973 to 103439. [2022-11-23 14:07:46,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103439 states, 103087 states have (on average 2.980055681123711) internal successors, (307205), 103438 states have internal predecessors, (307205), 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) [2022-11-23 14:07:46,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103439 states to 103439 states and 307205 transitions. [2022-11-23 14:07:46,281 INFO L78 Accepts]: Start accepts. Automaton has 103439 states and 307205 transitions. Word has length 14 [2022-11-23 14:07:46,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:07:46,281 INFO L495 AbstractCegarLoop]: Abstraction has 103439 states and 307205 transitions. [2022-11-23 14:07:46,281 INFO L496 AbstractCegarLoop]: INTERPOLANT 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) [2022-11-23 14:07:46,281 INFO L276 IsEmpty]: Start isEmpty. Operand 103439 states and 307205 transitions. [2022-11-23 14:07:46,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-23 14:07:46,284 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:07:46,285 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:07:46,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 14:07:46,285 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t1Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-11-23 14:07:46,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:07:46,286 INFO L85 PathProgramCache]: Analyzing trace with hash -475398824, now seen corresponding path program 1 times [2022-11-23 14:07:46,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:07:46,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442026593] [2022-11-23 14:07:46,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:07:46,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:07:46,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:07:46,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:07:46,658 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:07:46,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442026593] [2022-11-23 14:07:46,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442026593] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:07:46,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:07:46,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:07:46,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184934663] [2022-11-23 14:07:46,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:07:46,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 14:07:46,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:07:46,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 14:07:46,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:07:46,662 INFO L87 Difference]: Start difference. First operand 103439 states and 307205 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 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) [2022-11-23 14:07:49,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:07:49,120 INFO L93 Difference]: Finished difference Result 106312 states and 315543 transitions. [2022-11-23 14:07:49,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 14:07:49,121 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 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 18 [2022-11-23 14:07:49,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:07:49,473 INFO L225 Difference]: With dead ends: 106312 [2022-11-23 14:07:49,473 INFO L226 Difference]: Without dead ends: 106312 [2022-11-23 14:07:49,473 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 [2022-11-23 14:07:49,474 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 220 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 1010 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 1016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1010 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-23 14:07:49,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 207 Invalid, 1016 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1010 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-23 14:07:49,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106312 states. [2022-11-23 14:07:52,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106312 to 106312. [2022-11-23 14:07:52,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106312 states, 105960 states have (on average 2.9779445073612685) internal successors, (315543), 106311 states have internal predecessors, (315543), 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)