./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 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_c93fc2a3-fdf0-4981-8a5e-dc12b6175cf2/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c93fc2a3-fdf0-4981-8a5e-dc12b6175cf2/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c93fc2a3-fdf0-4981-8a5e-dc12b6175cf2/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c93fc2a3-fdf0-4981-8a5e-dc12b6175cf2/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c93fc2a3-fdf0-4981-8a5e-dc12b6175cf2/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c93fc2a3-fdf0-4981-8a5e-dc12b6175cf2/bin/utaipan-gh47qXpMRh --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 f91e7b856fd6bf43c568f48d1703ed519fbb708e5c1360b96f8534e6fa4ed35d --- 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-2329fc7 [2022-12-14 03:14:00,991 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 03:14:00,992 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 03:14:01,004 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 03:14:01,004 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 03:14:01,005 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 03:14:01,006 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 03:14:01,007 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 03:14:01,008 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 03:14:01,008 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 03:14:01,009 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 03:14:01,010 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 03:14:01,010 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 03:14:01,011 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 03:14:01,011 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 03:14:01,012 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 03:14:01,013 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 03:14:01,013 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 03:14:01,014 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 03:14:01,015 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 03:14:01,016 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 03:14:01,017 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 03:14:01,018 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 03:14:01,018 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 03:14:01,020 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 03:14:01,020 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 03:14:01,021 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 03:14:01,021 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 03:14:01,021 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 03:14:01,022 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 03:14:01,022 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 03:14:01,023 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 03:14:01,023 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 03:14:01,024 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 03:14:01,024 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 03:14:01,025 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 03:14:01,025 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 03:14:01,025 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 03:14:01,025 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 03:14:01,026 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 03:14:01,026 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 03:14:01,027 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c93fc2a3-fdf0-4981-8a5e-dc12b6175cf2/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-12-14 03:14:01,040 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 03:14:01,040 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 03:14:01,040 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 03:14:01,040 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 03:14:01,041 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 03:14:01,041 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 03:14:01,041 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 03:14:01,041 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 03:14:01,041 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 03:14:01,041 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 03:14:01,041 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 03:14:01,041 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 03:14:01,042 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 03:14:01,042 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 03:14:01,042 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 03:14:01,042 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 03:14:01,042 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 03:14:01,042 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 03:14:01,042 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 03:14:01,043 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 03:14:01,043 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 03:14:01,043 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 03:14:01,043 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 03:14:01,043 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 03:14:01,043 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 03:14:01,043 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 03:14:01,043 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 03:14:01,043 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-14 03:14:01,043 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 03:14:01,044 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 03:14:01,044 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 03:14:01,044 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 03:14:01,044 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 03:14:01,044 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 03:14:01,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 03:14:01,044 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 03:14:01,044 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 03:14:01,044 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 03:14:01,044 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 03:14:01,044 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 03:14:01,045 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 03:14:01,045 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 03:14:01,045 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 03:14:01,045 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_c93fc2a3-fdf0-4981-8a5e-dc12b6175cf2/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c93fc2a3-fdf0-4981-8a5e-dc12b6175cf2/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f91e7b856fd6bf43c568f48d1703ed519fbb708e5c1360b96f8534e6fa4ed35d [2022-12-14 03:14:01,215 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 03:14:01,233 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 03:14:01,235 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 03:14:01,236 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 03:14:01,236 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 03:14:01,237 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c93fc2a3-fdf0-4981-8a5e-dc12b6175cf2/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c [2022-12-14 03:14:03,941 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 03:14:04,101 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 03:14:04,102 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c93fc2a3-fdf0-4981-8a5e-dc12b6175cf2/sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c [2022-12-14 03:14:04,106 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c93fc2a3-fdf0-4981-8a5e-dc12b6175cf2/bin/utaipan-gh47qXpMRh/data/5df26cadc/f38d7b2fce5f48889cdb7dd021823000/FLAGfe2e46f9d [2022-12-14 03:14:04,120 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c93fc2a3-fdf0-4981-8a5e-dc12b6175cf2/bin/utaipan-gh47qXpMRh/data/5df26cadc/f38d7b2fce5f48889cdb7dd021823000 [2022-12-14 03:14:04,123 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 03:14:04,124 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 03:14:04,125 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 03:14:04,126 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 03:14:04,129 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 03:14:04,130 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:14:04" (1/1) ... [2022-12-14 03:14:04,130 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@696bb7b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:14:04, skipping insertion in model container [2022-12-14 03:14:04,131 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:14:04" (1/1) ... [2022-12-14 03:14:04,138 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 03:14:04,155 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 03:14:04,319 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_c93fc2a3-fdf0-4981-8a5e-dc12b6175cf2/sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c[2598,2611] [2022-12-14 03:14:04,324 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 03:14:04,330 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 03:14:04,356 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_c93fc2a3-fdf0-4981-8a5e-dc12b6175cf2/sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c[2598,2611] [2022-12-14 03:14:04,359 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 03:14:04,369 INFO L208 MainTranslator]: Completed translation [2022-12-14 03:14:04,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:14:04 WrapperNode [2022-12-14 03:14:04,370 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 03:14:04,371 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 03:14:04,371 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 03:14:04,371 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 03:14:04,376 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:14:04" (1/1) ... [2022-12-14 03:14:04,387 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:14:04" (1/1) ... [2022-12-14 03:14:04,411 INFO L138 Inliner]: procedures = 25, calls = 46, calls flagged for inlining = 11, calls inlined = 17, statements flattened = 298 [2022-12-14 03:14:04,412 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 03:14:04,413 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 03:14:04,413 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 03:14:04,413 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 03:14:04,422 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:14:04" (1/1) ... [2022-12-14 03:14:04,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:14:04" (1/1) ... [2022-12-14 03:14:04,428 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:14:04" (1/1) ... [2022-12-14 03:14:04,428 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:14:04" (1/1) ... [2022-12-14 03:14:04,447 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:14:04" (1/1) ... [2022-12-14 03:14:04,452 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:14:04" (1/1) ... [2022-12-14 03:14:04,454 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:14:04" (1/1) ... [2022-12-14 03:14:04,456 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:14:04" (1/1) ... [2022-12-14 03:14:04,460 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 03:14:04,461 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 03:14:04,461 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 03:14:04,462 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 03:14:04,462 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:14:04" (1/1) ... [2022-12-14 03:14:04,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 03:14:04,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c93fc2a3-fdf0-4981-8a5e-dc12b6175cf2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 03:14:04,491 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c93fc2a3-fdf0-4981-8a5e-dc12b6175cf2/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 03:14:04,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c93fc2a3-fdf0-4981-8a5e-dc12b6175cf2/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 03:14:04,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 03:14:04,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 03:14:04,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 03:14:04,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 03:14:04,528 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-14 03:14:04,529 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-14 03:14:04,529 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-14 03:14:04,529 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-14 03:14:04,529 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-14 03:14:04,529 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-14 03:14:04,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 03:14:04,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 03:14:04,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 03:14:04,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 03:14:04,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 03:14:04,531 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 03:14:04,609 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 03:14:04,611 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 03:14:05,144 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 03:14:05,156 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 03:14:05,156 INFO L300 CfgBuilder]: Removed 7 assume(true) statements. [2022-12-14 03:14:05,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:14:05 BoogieIcfgContainer [2022-12-14 03:14:05,159 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 03:14:05,162 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 03:14:05,162 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 03:14:05,165 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 03:14:05,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:14:04" (1/3) ... [2022-12-14 03:14:05,166 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@443e5ce8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:14:05, skipping insertion in model container [2022-12-14 03:14:05,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:14:04" (2/3) ... [2022-12-14 03:14:05,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@443e5ce8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:14:05, skipping insertion in model container [2022-12-14 03:14:05,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:14:05" (3/3) ... [2022-12-14 03:14:05,169 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-vector-add.wvr.c [2022-12-14 03:14:05,177 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 03:14:05,188 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 03:14:05,188 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 47 error locations. [2022-12-14 03:14:05,189 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 03:14:05,300 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-14 03:14:05,327 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 03:14:05,337 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 507 places, 524 transitions, 1072 flow [2022-12-14 03:14:05,340 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 507 places, 524 transitions, 1072 flow [2022-12-14 03:14:05,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 507 places, 524 transitions, 1072 flow [2022-12-14 03:14:05,458 INFO L130 PetriNetUnfolder]: 27/521 cut-off events. [2022-12-14 03:14:05,458 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-14 03:14:05,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 534 conditions, 521 events. 27/521 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 729 event pairs, 0 based on Foata normal form. 0/447 useless extension candidates. Maximal degree in co-relation 386. Up to 2 conditions per place. [2022-12-14 03:14:05,476 INFO L119 LiptonReduction]: Number of co-enabled transitions 20034 [2022-12-14 03:14:17,621 INFO L134 LiptonReduction]: Checked pairs total: 181113 [2022-12-14 03:14:17,621 INFO L136 LiptonReduction]: Total number of compositions: 558 [2022-12-14 03:14:17,628 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 158 places, 158 transitions, 340 flow [2022-12-14 03:14:21,833 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 232483 states, 231229 states have (on average 3.955598129992345) internal successors, (914649), 232482 states have internal predecessors, (914649), 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) [2022-12-14 03:14:21,848 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 03:14:21,853 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;@cb91086, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 03:14:21,853 INFO L358 AbstractCegarLoop]: Starting to check reachability of 72 error locations. [2022-12-14 03:14:22,177 INFO L276 IsEmpty]: Start isEmpty. Operand has 232483 states, 231229 states have (on average 3.955598129992345) internal successors, (914649), 232482 states have internal predecessors, (914649), 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) [2022-12-14 03:14:22,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-12-14 03:14:22,180 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:14:22,181 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-12-14 03:14:22,181 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-12-14 03:14:22,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:14:22,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1871, now seen corresponding path program 1 times [2022-12-14 03:14:22,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:14:22,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892729513] [2022-12-14 03:14:22,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:14:22,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:14:22,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:14:22,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:14:22,264 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:14:22,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892729513] [2022-12-14 03:14:22,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892729513] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:14:22,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:14:22,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-14 03:14:22,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033924791] [2022-12-14 03:14:22,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:14:22,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 03:14:22,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:14:22,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 03:14:22,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 03:14:22,549 INFO L87 Difference]: Start difference. First operand has 232483 states, 231229 states have (on average 3.955598129992345) internal successors, (914649), 232482 states have internal predecessors, (914649), 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) [2022-12-14 03:14:24,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:14:24,314 INFO L93 Difference]: Finished difference Result 147589 states and 565341 transitions. [2022-12-14 03:14:24,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 03:14:24,316 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 [2022-12-14 03:14:24,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:14:25,104 INFO L225 Difference]: With dead ends: 147589 [2022-12-14 03:14:25,105 INFO L226 Difference]: Without dead ends: 147587 [2022-12-14 03:14:25,105 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 [2022-12-14 03:14:25,108 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 03:14:25,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 72 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 03:14:25,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147587 states. [2022-12-14 03:14:28,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147587 to 147587. [2022-12-14 03:14:29,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147587 states, 147440 states have (on average 3.8343597395550733) internal successors, (565338), 147586 states have internal predecessors, (565338), 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) [2022-12-14 03:14:29,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147587 states to 147587 states and 565338 transitions. [2022-12-14 03:14:29,878 INFO L78 Accepts]: Start accepts. Automaton has 147587 states and 565338 transitions. Word has length 1 [2022-12-14 03:14:29,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:14:29,879 INFO L495 AbstractCegarLoop]: Abstraction has 147587 states and 565338 transitions. [2022-12-14 03:14:29,879 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) [2022-12-14 03:14:29,879 INFO L276 IsEmpty]: Start isEmpty. Operand 147587 states and 565338 transitions. [2022-12-14 03:14:29,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 03:14:29,881 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:14:29,881 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:14:29,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 03:14:29,882 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-12-14 03:14:29,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:14:29,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1092523844, now seen corresponding path program 1 times [2022-12-14 03:14:29,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:14:29,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881934679] [2022-12-14 03:14:29,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:14:29,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:14:29,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:14:30,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:14:30,152 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:14:30,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881934679] [2022-12-14 03:14:30,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881934679] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:14:30,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:14:30,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 03:14:30,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915931569] [2022-12-14 03:14:30,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:14:30,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 03:14:30,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:14:30,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 03:14:30,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 03:14:30,156 INFO L87 Difference]: Start difference. First operand 147587 states and 565338 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:14:31,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:14:31,987 INFO L93 Difference]: Finished difference Result 204621 states and 763952 transitions. [2022-12-14 03:14:31,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 03:14:31,988 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-12-14 03:14:31,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:14:32,947 INFO L225 Difference]: With dead ends: 204621 [2022-12-14 03:14:32,947 INFO L226 Difference]: Without dead ends: 204621 [2022-12-14 03:14:32,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-12-14 03:14:32,948 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 416 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 416 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 03:14:32,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [416 Valid, 342 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 03:14:33,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204621 states. [2022-12-14 03:14:37,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204621 to 164605. [2022-12-14 03:14:37,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164605 states, 164458 states have (on average 3.837569470624719) internal successors, (631119), 164604 states have internal predecessors, (631119), 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) [2022-12-14 03:14:38,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164605 states to 164605 states and 631119 transitions. [2022-12-14 03:14:38,225 INFO L78 Accepts]: Start accepts. Automaton has 164605 states and 631119 transitions. Word has length 15 [2022-12-14 03:14:38,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:14:38,226 INFO L495 AbstractCegarLoop]: Abstraction has 164605 states and 631119 transitions. [2022-12-14 03:14:38,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:14:38,226 INFO L276 IsEmpty]: Start isEmpty. Operand 164605 states and 631119 transitions. [2022-12-14 03:14:38,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 03:14:38,228 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:14:38,228 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:14:38,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 03:14:38,229 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-12-14 03:14:38,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:14:38,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1050410210, now seen corresponding path program 1 times [2022-12-14 03:14:38,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:14:38,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892654999] [2022-12-14 03:14:38,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:14:38,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:14:38,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:14:38,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:14:38,613 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:14:38,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892654999] [2022-12-14 03:14:38,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892654999] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:14:38,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:14:38,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 03:14:38,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249153343] [2022-12-14 03:14:38,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:14:38,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 03:14:38,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:14:38,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 03:14:38,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 03:14:38,615 INFO L87 Difference]: Start difference. First operand 164605 states and 631119 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 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) [2022-12-14 03:14:41,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:14:41,337 INFO L93 Difference]: Finished difference Result 268668 states and 1021677 transitions. [2022-12-14 03:14:41,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 03:14:41,338 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 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 16 [2022-12-14 03:14:41,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:14:42,890 INFO L225 Difference]: With dead ends: 268668 [2022-12-14 03:14:42,891 INFO L226 Difference]: Without dead ends: 268668 [2022-12-14 03:14:42,891 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 [2022-12-14 03:14:42,892 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 195 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 840 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 03:14:42,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 110 Invalid, 963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 840 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 03:14:43,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268668 states. [2022-12-14 03:14:48,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268668 to 243189. [2022-12-14 03:14:48,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243189 states, 243042 states have (on average 3.890088955818336) internal successors, (945455), 243188 states have internal predecessors, (945455), 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) [2022-12-14 03:14:50,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243189 states to 243189 states and 945455 transitions. [2022-12-14 03:14:50,169 INFO L78 Accepts]: Start accepts. Automaton has 243189 states and 945455 transitions. Word has length 16 [2022-12-14 03:14:50,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:14:50,170 INFO L495 AbstractCegarLoop]: Abstraction has 243189 states and 945455 transitions. [2022-12-14 03:14:50,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 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) [2022-12-14 03:14:50,170 INFO L276 IsEmpty]: Start isEmpty. Operand 243189 states and 945455 transitions. [2022-12-14 03:14:50,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-14 03:14:50,174 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:14:50,174 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:14:50,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 03:14:50,175 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-12-14 03:14:50,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:14:50,175 INFO L85 PathProgramCache]: Analyzing trace with hash -32921574, now seen corresponding path program 1 times [2022-12-14 03:14:50,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:14:50,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57050530] [2022-12-14 03:14:50,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:14:50,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:14:50,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:14:50,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:14:50,279 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:14:50,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57050530] [2022-12-14 03:14:50,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57050530] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:14:50,279 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:14:50,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 03:14:50,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844439892] [2022-12-14 03:14:50,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:14:50,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 03:14:50,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:14:50,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 03:14:50,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-14 03:14:50,281 INFO L87 Difference]: Start difference. First operand 243189 states and 945455 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 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) [2022-12-14 03:14:52,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:14:52,490 INFO L93 Difference]: Finished difference Result 230075 states and 886224 transitions. [2022-12-14 03:14:52,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 03:14:52,491 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 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 [2022-12-14 03:14:52,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:14:53,558 INFO L225 Difference]: With dead ends: 230075 [2022-12-14 03:14:53,559 INFO L226 Difference]: Without dead ends: 230075 [2022-12-14 03:14:53,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-12-14 03:14:53,560 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 417 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 03:14:53,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [417 Valid, 384 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 03:14:54,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230075 states. [2022-12-14 03:14:58,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230075 to 223181. [2022-12-14 03:14:59,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223181 states, 223034 states have (on average 3.8769873651550886) internal successors, (864700), 223180 states have internal predecessors, (864700), 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) [2022-12-14 03:15:00,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223181 states to 223181 states and 864700 transitions. [2022-12-14 03:15:00,139 INFO L78 Accepts]: Start accepts. Automaton has 223181 states and 864700 transitions. Word has length 18 [2022-12-14 03:15:00,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:15:00,139 INFO L495 AbstractCegarLoop]: Abstraction has 223181 states and 864700 transitions. [2022-12-14 03:15:00,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 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) [2022-12-14 03:15:00,140 INFO L276 IsEmpty]: Start isEmpty. Operand 223181 states and 864700 transitions. [2022-12-14 03:15:00,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 03:15:00,142 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:15:00,142 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:15:00,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 03:15:00,142 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-12-14 03:15:00,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:15:00,142 INFO L85 PathProgramCache]: Analyzing trace with hash 378832434, now seen corresponding path program 1 times [2022-12-14 03:15:00,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:15:00,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164639460] [2022-12-14 03:15:00,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:15:00,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:15:00,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:15:00,432 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 03:15:00,432 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:15:00,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164639460] [2022-12-14 03:15:00,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164639460] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:15:00,433 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:15:00,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 03:15:00,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925676471] [2022-12-14 03:15:00,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:15:00,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 03:15:00,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:15:00,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 03:15:00,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 03:15:00,434 INFO L87 Difference]: Start difference. First operand 223181 states and 864700 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:03,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:15:03,581 INFO L93 Difference]: Finished difference Result 333003 states and 1294246 transitions. [2022-12-14 03:15:03,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 03:15:03,581 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-12-14 03:15:03,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:15:05,450 INFO L225 Difference]: With dead ends: 333003 [2022-12-14 03:15:05,450 INFO L226 Difference]: Without dead ends: 333003 [2022-12-14 03:15:05,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 03:15:05,451 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 149 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 836 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 03:15:05,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 108 Invalid, 921 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 836 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 03:15:05,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333003 states. [2022-12-14 03:15:11,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333003 to 256953. [2022-12-14 03:15:12,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256953 states, 256806 states have (on average 3.8815136717989454) internal successors, (996796), 256952 states have internal predecessors, (996796), 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) [2022-12-14 03:15:13,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256953 states to 256953 states and 996796 transitions. [2022-12-14 03:15:13,395 INFO L78 Accepts]: Start accepts. Automaton has 256953 states and 996796 transitions. Word has length 19 [2022-12-14 03:15:13,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:15:13,395 INFO L495 AbstractCegarLoop]: Abstraction has 256953 states and 996796 transitions. [2022-12-14 03:15:13,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:13,395 INFO L276 IsEmpty]: Start isEmpty. Operand 256953 states and 996796 transitions. [2022-12-14 03:15:13,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-14 03:15:13,399 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:15:13,399 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:15:13,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 03:15:13,400 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread3Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-12-14 03:15:13,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:15:13,400 INFO L85 PathProgramCache]: Analyzing trace with hash 621949264, now seen corresponding path program 1 times [2022-12-14 03:15:13,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:15:13,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046341673] [2022-12-14 03:15:13,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:15:13,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:15:13,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:15:13,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:15:13,481 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:15:13,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046341673] [2022-12-14 03:15:13,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046341673] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:15:13,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:15:13,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 03:15:13,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551719884] [2022-12-14 03:15:13,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:15:13,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 03:15:13,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:15:13,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 03:15:13,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 03:15:13,482 INFO L87 Difference]: Start difference. First operand 256953 states and 996796 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 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) [2022-12-14 03:15:15,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:15:15,582 INFO L93 Difference]: Finished difference Result 253159 states and 982896 transitions. [2022-12-14 03:15:15,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 03:15:15,583 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 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 21 [2022-12-14 03:15:15,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:15:16,927 INFO L225 Difference]: With dead ends: 253159 [2022-12-14 03:15:16,927 INFO L226 Difference]: Without dead ends: 253151 [2022-12-14 03:15:16,927 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-12-14 03:15:16,928 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 314 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 03:15:16,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 558 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 03:15:17,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253151 states. [2022-12-14 03:15:22,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253151 to 252330. [2022-12-14 03:15:22,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252330 states, 252183 states have (on average 3.8881328241792668) internal successors, (980521), 252329 states have internal predecessors, (980521), 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) [2022-12-14 03:15:23,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252330 states to 252330 states and 980521 transitions. [2022-12-14 03:15:23,868 INFO L78 Accepts]: Start accepts. Automaton has 252330 states and 980521 transitions. Word has length 21 [2022-12-14 03:15:23,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:15:23,869 INFO L495 AbstractCegarLoop]: Abstraction has 252330 states and 980521 transitions. [2022-12-14 03:15:23,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 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) [2022-12-14 03:15:23,869 INFO L276 IsEmpty]: Start isEmpty. Operand 252330 states and 980521 transitions. [2022-12-14 03:15:23,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 03:15:23,873 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:15:23,873 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:15:23,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 03:15:23,873 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-12-14 03:15:23,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:15:23,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1294266652, now seen corresponding path program 1 times [2022-12-14 03:15:23,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:15:23,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463183544] [2022-12-14 03:15:23,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:15:23,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:15:23,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat