./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/stateful01-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_199891e8-ead6-45c8-aeb3-c285123df610/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_199891e8-ead6-45c8-aeb3-c285123df610/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_199891e8-ead6-45c8-aeb3-c285123df610/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_199891e8-ead6-45c8-aeb3-c285123df610/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread/stateful01-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_199891e8-ead6-45c8-aeb3-c285123df610/bin/utaipan-TEXQjIfE4P/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_199891e8-ead6-45c8-aeb3-c285123df610/bin/utaipan-TEXQjIfE4P --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 e2334be94e5a4379173e8ce9878c152630508647bf4da61c6cf055a5b5360d8e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 00:05:48,240 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 00:05:48,242 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 00:05:48,296 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 00:05:48,297 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 00:05:48,298 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 00:05:48,300 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 00:05:48,311 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 00:05:48,314 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 00:05:48,322 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 00:05:48,324 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 00:05:48,326 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 00:05:48,326 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 00:05:48,329 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 00:05:48,333 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 00:05:48,339 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 00:05:48,341 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 00:05:48,342 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 00:05:48,345 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 00:05:48,354 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 00:05:48,356 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 00:05:48,358 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 00:05:48,361 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 00:05:48,362 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 00:05:48,366 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 00:05:48,367 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 00:05:48,367 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 00:05:48,369 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 00:05:48,370 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 00:05:48,371 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 00:05:48,372 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 00:05:48,373 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 00:05:48,375 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 00:05:48,376 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 00:05:48,378 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 00:05:48,378 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 00:05:48,379 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 00:05:48,379 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 00:05:48,379 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 00:05:48,380 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 00:05:48,381 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 00:05:48,382 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_199891e8-ead6-45c8-aeb3-c285123df610/bin/utaipan-TEXQjIfE4P/config/svcomp-DataRace-32bit-Taipan_Default.epf [2021-11-21 00:05:48,431 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 00:05:48,431 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 00:05:48,432 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 00:05:48,432 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 00:05:48,439 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 00:05:48,439 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 00:05:48,439 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 00:05:48,440 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 00:05:48,440 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 00:05:48,440 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 00:05:48,440 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 00:05:48,440 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 00:05:48,441 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 00:05:48,441 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 00:05:48,441 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 00:05:48,441 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 00:05:48,441 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 00:05:48,442 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 00:05:48,442 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 00:05:48,443 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 00:05:48,443 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-21 00:05:48,443 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 00:05:48,443 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 00:05:48,443 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 00:05:48,444 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 00:05:48,444 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 00:05:48,444 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 00:05:48,444 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-11-21 00:05:48,444 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 00:05:48,444 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 00:05:48,445 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 00:05:48,445 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 00:05:48,445 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 00:05:48,445 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 00:05:48,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:05:48,446 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 00:05:48,446 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 00:05:48,446 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 00:05:48,446 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 00:05:48,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 00:05:48,447 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 00:05:48,447 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 00:05:48,447 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 00:05:48,447 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_199891e8-ead6-45c8-aeb3-c285123df610/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_199891e8-ead6-45c8-aeb3-c285123df610/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e2334be94e5a4379173e8ce9878c152630508647bf4da61c6cf055a5b5360d8e [2021-11-21 00:05:48,731 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 00:05:48,753 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 00:05:48,756 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 00:05:48,757 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 00:05:48,758 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 00:05:48,759 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_199891e8-ead6-45c8-aeb3-c285123df610/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/pthread/stateful01-2.i [2021-11-21 00:05:48,833 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_199891e8-ead6-45c8-aeb3-c285123df610/bin/utaipan-TEXQjIfE4P/data/2bb8a5776/636014d4e47d44f4b266fb16ee773969/FLAG4e40766d1 [2021-11-21 00:05:49,441 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 00:05:49,441 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_199891e8-ead6-45c8-aeb3-c285123df610/sv-benchmarks/c/pthread/stateful01-2.i [2021-11-21 00:05:49,456 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_199891e8-ead6-45c8-aeb3-c285123df610/bin/utaipan-TEXQjIfE4P/data/2bb8a5776/636014d4e47d44f4b266fb16ee773969/FLAG4e40766d1 [2021-11-21 00:05:49,736 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_199891e8-ead6-45c8-aeb3-c285123df610/bin/utaipan-TEXQjIfE4P/data/2bb8a5776/636014d4e47d44f4b266fb16ee773969 [2021-11-21 00:05:49,739 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 00:05:49,740 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 00:05:49,742 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 00:05:49,743 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 00:05:49,747 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 00:05:49,748 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:05:49" (1/1) ... [2021-11-21 00:05:49,749 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@661a11f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:05:49, skipping insertion in model container [2021-11-21 00:05:49,750 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:05:49" (1/1) ... [2021-11-21 00:05:49,758 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 00:05:49,799 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:05:50,242 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_199891e8-ead6-45c8-aeb3-c285123df610/sv-benchmarks/c/pthread/stateful01-2.i[30826,30839] [2021-11-21 00:05:50,243 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:05:50,256 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 00:05:50,300 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_199891e8-ead6-45c8-aeb3-c285123df610/sv-benchmarks/c/pthread/stateful01-2.i[30826,30839] [2021-11-21 00:05:50,301 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:05:50,342 INFO L208 MainTranslator]: Completed translation [2021-11-21 00:05:50,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:05:50 WrapperNode [2021-11-21 00:05:50,343 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 00:05:50,344 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 00:05:50,344 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 00:05:50,344 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 00:05:50,352 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:05:50" (1/1) ... [2021-11-21 00:05:50,368 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:05:50" (1/1) ... [2021-11-21 00:05:50,394 INFO L137 Inliner]: procedures = 168, calls = 34, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 90 [2021-11-21 00:05:50,394 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 00:05:50,395 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 00:05:50,395 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 00:05:50,396 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 00:05:50,404 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:05:50" (1/1) ... [2021-11-21 00:05:50,404 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:05:50" (1/1) ... [2021-11-21 00:05:50,408 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:05:50" (1/1) ... [2021-11-21 00:05:50,409 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:05:50" (1/1) ... [2021-11-21 00:05:50,420 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:05:50" (1/1) ... [2021-11-21 00:05:50,422 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:05:50" (1/1) ... [2021-11-21 00:05:50,424 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:05:50" (1/1) ... [2021-11-21 00:05:50,428 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 00:05:50,429 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 00:05:50,429 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 00:05:50,429 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 00:05:50,430 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:05:50" (1/1) ... [2021-11-21 00:05:50,442 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:05:50,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_199891e8-ead6-45c8-aeb3-c285123df610/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:05:50,467 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_199891e8-ead6-45c8-aeb3-c285123df610/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 00:05:50,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_199891e8-ead6-45c8-aeb3-c285123df610/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 00:05:50,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 00:05:50,510 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-21 00:05:50,510 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-21 00:05:50,510 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-21 00:05:50,510 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-21 00:05:50,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 00:05:50,510 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-21 00:05:50,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 00:05:50,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 00:05:50,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 00:05:50,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 00:05:50,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 00:05:50,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 00:05:50,513 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-21 00:05:50,627 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 00:05:50,629 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 00:05:51,043 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 00:05:51,056 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 00:05:51,058 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-21 00:05:51,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:05:51 BoogieIcfgContainer [2021-11-21 00:05:51,061 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 00:05:51,066 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 00:05:51,066 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 00:05:51,069 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 00:05:51,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:05:49" (1/3) ... [2021-11-21 00:05:51,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55c6c4ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:05:51, skipping insertion in model container [2021-11-21 00:05:51,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:05:50" (2/3) ... [2021-11-21 00:05:51,072 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55c6c4ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:05:51, skipping insertion in model container [2021-11-21 00:05:51,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:05:51" (3/3) ... [2021-11-21 00:05:51,074 INFO L111 eAbstractionObserver]: Analyzing ICFG stateful01-2.i [2021-11-21 00:05:51,080 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-21 00:05:51,080 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 00:05:51,081 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2021-11-21 00:05:51,081 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-21 00:05:51,154 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,157 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,157 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,157 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,158 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,158 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,158 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,158 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,159 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,159 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,159 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,160 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,160 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,161 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,161 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,161 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,161 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,162 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,162 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,162 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,163 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,163 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,163 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,163 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,163 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,164 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,164 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,164 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,165 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,165 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,165 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,165 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,166 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,166 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,166 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,166 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,167 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,168 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,169 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,170 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,170 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,170 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,170 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,170 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,171 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,171 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,171 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,172 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,172 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,172 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,173 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,173 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,174 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,175 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,175 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,175 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,175 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,175 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,176 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,176 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,176 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,177 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,177 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,178 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,179 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,179 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,179 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,179 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,179 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,180 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,180 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,181 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,182 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,184 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,185 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,185 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,185 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,186 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,187 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,188 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,188 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,188 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,193 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,193 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,193 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,193 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,197 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,197 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,197 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,197 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,198 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,198 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,202 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,203 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,203 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,204 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,204 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,204 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,204 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,205 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,209 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,210 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,210 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,210 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,210 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,210 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,211 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,211 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,212 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,212 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 00:05:51,225 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-11-21 00:05:51,289 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 00:05:51,300 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-21 00:05:51,301 INFO L340 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2021-11-21 00:05:51,326 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-21 00:05:51,347 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 163 places, 158 transitions, 332 flow [2021-11-21 00:05:51,353 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 163 places, 158 transitions, 332 flow [2021-11-21 00:05:51,355 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 163 places, 158 transitions, 332 flow [2021-11-21 00:05:51,476 INFO L129 PetriNetUnfolder]: 2/156 cut-off events. [2021-11-21 00:05:51,477 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-11-21 00:05:51,480 INFO L84 FinitePrefix]: Finished finitePrefix Result has 165 conditions, 156 events. 2/156 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 148 event pairs, 0 based on Foata normal form. 0/140 useless extension candidates. Maximal degree in co-relation 62. Up to 2 conditions per place. [2021-11-21 00:05:51,488 INFO L116 LiptonReduction]: Number of co-enabled transitions 3576 [2021-11-21 00:05:56,604 INFO L131 LiptonReduction]: Checked pairs total: 16902 [2021-11-21 00:05:56,605 INFO L133 LiptonReduction]: Total number of compositions: 128 [2021-11-21 00:05:56,626 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 62 places, 55 transitions, 126 flow [2021-11-21 00:05:56,700 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1303 states, 1245 states have (on average 2.628112449799197) internal successors, (3272), 1302 states have internal predecessors, (3272), 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) [2021-11-21 00:05:56,706 INFO L276 IsEmpty]: Start isEmpty. Operand has 1303 states, 1245 states have (on average 2.628112449799197) internal successors, (3272), 1302 states have internal predecessors, (3272), 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) [2021-11-21 00:05:56,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2021-11-21 00:05:56,711 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:05:56,712 INFO L514 BasicCegarLoop]: trace histogram [1] [2021-11-21 00:05:56,713 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2021-11-21 00:05:56,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:05:56,718 INFO L85 PathProgramCache]: Analyzing trace with hash 541, now seen corresponding path program 1 times [2021-11-21 00:05:56,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:05:56,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875768963] [2021-11-21 00:05:56,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:05:56,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:05:56,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:05:56,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:05:56,831 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:05:56,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875768963] [2021-11-21 00:05:56,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875768963] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:05:56,832 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:05:56,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2021-11-21 00:05:56,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014867938] [2021-11-21 00:05:56,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:05:56,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-21 00:05:56,845 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:05:56,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-21 00:05:56,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 00:05:56,879 INFO L87 Difference]: Start difference. First operand has 1303 states, 1245 states have (on average 2.628112449799197) internal successors, (3272), 1302 states have internal predecessors, (3272), 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) [2021-11-21 00:05:56,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:05:56,984 INFO L93 Difference]: Finished difference Result 881 states and 2074 transitions. [2021-11-21 00:05:56,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-21 00:05:56,987 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 [2021-11-21 00:05:56,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:05:57,016 INFO L225 Difference]: With dead ends: 881 [2021-11-21 00:05:57,017 INFO L226 Difference]: Without dead ends: 868 [2021-11-21 00:05:57,018 INFO L932 BasicCegarLoop]: 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 [2021-11-21 00:05:57,023 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:05:57,025 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 23 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 00:05:57,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 868 states. [2021-11-21 00:05:57,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 868 to 868. [2021-11-21 00:05:57,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 868 states, 844 states have (on average 2.4229857819905214) internal successors, (2045), 867 states have internal predecessors, (2045), 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) [2021-11-21 00:05:57,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 868 states to 868 states and 2045 transitions. [2021-11-21 00:05:57,164 INFO L78 Accepts]: Start accepts. Automaton has 868 states and 2045 transitions. Word has length 1 [2021-11-21 00:05:57,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:05:57,165 INFO L470 AbstractCegarLoop]: Abstraction has 868 states and 2045 transitions. [2021-11-21 00:05:57,165 INFO L471 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) [2021-11-21 00:05:57,165 INFO L276 IsEmpty]: Start isEmpty. Operand 868 states and 2045 transitions. [2021-11-21 00:05:57,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-21 00:05:57,166 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:05:57,166 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-21 00:05:57,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 00:05:57,167 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2021-11-21 00:05:57,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:05:57,171 INFO L85 PathProgramCache]: Analyzing trace with hash 515161892, now seen corresponding path program 1 times [2021-11-21 00:05:57,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:05:57,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228004621] [2021-11-21 00:05:57,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:05:57,173 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:05:57,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:05:57,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:05:57,309 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:05:57,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228004621] [2021-11-21 00:05:57,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228004621] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:05:57,309 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:05:57,309 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 00:05:57,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574639208] [2021-11-21 00:05:57,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:05:57,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:05:57,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:05:57,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:05:57,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:05:57,313 INFO L87 Difference]: Start difference. First operand 868 states and 2045 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) [2021-11-21 00:05:57,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:05:57,421 INFO L93 Difference]: Finished difference Result 1036 states and 2449 transitions. [2021-11-21 00:05:57,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:05:57,422 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 [2021-11-21 00:05:57,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:05:57,431 INFO L225 Difference]: With dead ends: 1036 [2021-11-21 00:05:57,432 INFO L226 Difference]: Without dead ends: 1036 [2021-11-21 00:05:57,432 INFO L932 BasicCegarLoop]: 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 [2021-11-21 00:05:57,434 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 37 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:05:57,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 48 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 00:05:57,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2021-11-21 00:05:57,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 898. [2021-11-21 00:05:57,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 898 states, 875 states have (on average 2.418285714285714) internal successors, (2116), 897 states have internal predecessors, (2116), 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) [2021-11-21 00:05:57,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 2116 transitions. [2021-11-21 00:05:57,474 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 2116 transitions. Word has length 5 [2021-11-21 00:05:57,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:05:57,474 INFO L470 AbstractCegarLoop]: Abstraction has 898 states and 2116 transitions. [2021-11-21 00:05:57,474 INFO L471 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) [2021-11-21 00:05:57,474 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 2116 transitions. [2021-11-21 00:05:57,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-21 00:05:57,475 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:05:57,475 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:05:57,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 00:05:57,476 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2021-11-21 00:05:57,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:05:57,476 INFO L85 PathProgramCache]: Analyzing trace with hash 719404680, now seen corresponding path program 1 times [2021-11-21 00:05:57,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:05:57,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582460804] [2021-11-21 00:05:57,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:05:57,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:05:57,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:05:57,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:05:57,560 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:05:57,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582460804] [2021-11-21 00:05:57,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582460804] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:05:57,561 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:05:57,561 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 00:05:57,561 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973389148] [2021-11-21 00:05:57,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:05:57,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:05:57,564 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:05:57,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:05:57,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:05:57,565 INFO L87 Difference]: Start difference. First operand 898 states and 2116 transitions. Second operand has 3 states, 2 states have (on average 4.5) 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) [2021-11-21 00:05:57,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:05:57,644 INFO L93 Difference]: Finished difference Result 950 states and 2243 transitions. [2021-11-21 00:05:57,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:05:57,645 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) 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 [2021-11-21 00:05:57,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:05:57,653 INFO L225 Difference]: With dead ends: 950 [2021-11-21 00:05:57,654 INFO L226 Difference]: Without dead ends: 950 [2021-11-21 00:05:57,654 INFO L932 BasicCegarLoop]: 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 [2021-11-21 00:05:57,657 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 20 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:05:57,659 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 42 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 00:05:57,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 950 states. [2021-11-21 00:05:57,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 950 to 918. [2021-11-21 00:05:57,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 2.416294642857143) internal successors, (2165), 917 states have internal predecessors, (2165), 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) [2021-11-21 00:05:57,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 2165 transitions. [2021-11-21 00:05:57,700 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 2165 transitions. Word has length 9 [2021-11-21 00:05:57,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:05:57,701 INFO L470 AbstractCegarLoop]: Abstraction has 918 states and 2165 transitions. [2021-11-21 00:05:57,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) 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) [2021-11-21 00:05:57,701 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 2165 transitions. [2021-11-21 00:05:57,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-21 00:05:57,703 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:05:57,703 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:05:57,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-21 00:05:57,705 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2021-11-21 00:05:57,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:05:57,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1166482219, now seen corresponding path program 1 times [2021-11-21 00:05:57,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:05:57,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555325418] [2021-11-21 00:05:57,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:05:57,710 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:05:57,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:05:57,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:05:57,758 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:05:57,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555325418] [2021-11-21 00:05:57,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555325418] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:05:57,759 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:05:57,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 00:05:57,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328659793] [2021-11-21 00:05:57,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:05:57,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:05:57,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:05:57,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:05:57,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:05:57,761 INFO L87 Difference]: Start difference. First operand 918 states and 2165 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 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) [2021-11-21 00:05:57,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:05:57,840 INFO L93 Difference]: Finished difference Result 974 states and 2299 transitions. [2021-11-21 00:05:57,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:05:57,841 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 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 [2021-11-21 00:05:57,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:05:57,852 INFO L225 Difference]: With dead ends: 974 [2021-11-21 00:05:57,852 INFO L226 Difference]: Without dead ends: 974 [2021-11-21 00:05:57,852 INFO L932 BasicCegarLoop]: 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 [2021-11-21 00:05:57,857 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 22 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:05:57,859 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 45 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 00:05:57,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 974 states. [2021-11-21 00:05:57,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 974 to 938. [2021-11-21 00:05:57,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 938 states, 918 states have (on average 2.4095860566448803) internal successors, (2212), 937 states have internal predecessors, (2212), 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) [2021-11-21 00:05:57,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 938 states to 938 states and 2212 transitions. [2021-11-21 00:05:57,900 INFO L78 Accepts]: Start accepts. Automaton has 938 states and 2212 transitions. Word has length 10 [2021-11-21 00:05:57,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:05:57,900 INFO L470 AbstractCegarLoop]: Abstraction has 938 states and 2212 transitions. [2021-11-21 00:05:57,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 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) [2021-11-21 00:05:57,902 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 2212 transitions. [2021-11-21 00:05:57,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-21 00:05:57,905 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:05:57,905 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:05:57,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-21 00:05:57,906 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2021-11-21 00:05:57,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:05:57,909 INFO L85 PathProgramCache]: Analyzing trace with hash -574033995, now seen corresponding path program 1 times [2021-11-21 00:05:57,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:05:57,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355298263] [2021-11-21 00:05:57,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:05:57,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:05:57,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:05:58,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:05:58,033 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:05:58,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355298263] [2021-11-21 00:05:58,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355298263] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:05:58,034 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:05:58,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:05:58,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950807967] [2021-11-21 00:05:58,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:05:58,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:05:58,035 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:05:58,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:05:58,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:05:58,035 INFO L87 Difference]: Start difference. First operand 938 states and 2212 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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) [2021-11-21 00:05:58,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:05:58,095 INFO L93 Difference]: Finished difference Result 262 states and 426 transitions. [2021-11-21 00:05:58,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:05:58,096 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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 [2021-11-21 00:05:58,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:05:58,100 INFO L225 Difference]: With dead ends: 262 [2021-11-21 00:05:58,100 INFO L226 Difference]: Without dead ends: 262 [2021-11-21 00:05:58,102 INFO L932 BasicCegarLoop]: 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 [2021-11-21 00:05:58,103 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 28 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:05:58,105 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 19 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 00:05:58,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2021-11-21 00:05:58,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2021-11-21 00:05:58,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 250 states have (on average 1.704) internal successors, (426), 261 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:05:58,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 426 transitions. [2021-11-21 00:05:58,118 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 426 transitions. Word has length 12 [2021-11-21 00:05:58,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:05:58,118 INFO L470 AbstractCegarLoop]: Abstraction has 262 states and 426 transitions. [2021-11-21 00:05:58,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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) [2021-11-21 00:05:58,120 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 426 transitions. [2021-11-21 00:05:58,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-21 00:05:58,126 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:05:58,126 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:05:58,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-21 00:05:58,128 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2021-11-21 00:05:58,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:05:58,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1148422873, now seen corresponding path program 1 times [2021-11-21 00:05:58,131 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:05:58,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255665486] [2021-11-21 00:05:58,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:05:58,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:05:58,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:05:58,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:05:58,197 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:05:58,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255665486] [2021-11-21 00:05:58,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255665486] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:05:58,198 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:05:58,198 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 00:05:58,198 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668618624] [2021-11-21 00:05:58,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:05:58,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:05:58,199 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:05:58,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:05:58,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:05:58,200 INFO L87 Difference]: Start difference. First operand 262 states and 426 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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) [2021-11-21 00:05:58,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:05:58,249 INFO L93 Difference]: Finished difference Result 246 states and 400 transitions. [2021-11-21 00:05:58,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:05:58,250 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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 13 [2021-11-21 00:05:58,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:05:58,252 INFO L225 Difference]: With dead ends: 246 [2021-11-21 00:05:58,252 INFO L226 Difference]: Without dead ends: 246 [2021-11-21 00:05:58,253 INFO L932 BasicCegarLoop]: 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 [2021-11-21 00:05:58,256 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 10 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:05:58,257 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 23 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 00:05:58,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2021-11-21 00:05:58,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 246. [2021-11-21 00:05:58,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 240 states have (on average 1.6666666666666667) internal successors, (400), 245 states have internal predecessors, (400), 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) [2021-11-21 00:05:58,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 400 transitions. [2021-11-21 00:05:58,280 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 400 transitions. Word has length 13 [2021-11-21 00:05:58,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:05:58,280 INFO L470 AbstractCegarLoop]: Abstraction has 246 states and 400 transitions. [2021-11-21 00:05:58,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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) [2021-11-21 00:05:58,281 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 400 transitions. [2021-11-21 00:05:58,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-21 00:05:58,282 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:05:58,282 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:05:58,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-21 00:05:58,282 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2021-11-21 00:05:58,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:05:58,283 INFO L85 PathProgramCache]: Analyzing trace with hash 2017442094, now seen corresponding path program 1 times [2021-11-21 00:05:58,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:05:58,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725186471] [2021-11-21 00:05:58,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:05:58,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:05:58,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:05:58,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:05:58,317 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:05:58,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725186471] [2021-11-21 00:05:58,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725186471] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:05:58,318 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:05:58,318 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 00:05:58,318 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27314182] [2021-11-21 00:05:58,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:05:58,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:05:58,319 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:05:58,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:05:58,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:05:58,320 INFO L87 Difference]: Start difference. First operand 246 states and 400 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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) [2021-11-21 00:05:58,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:05:58,374 INFO L93 Difference]: Finished difference Result 238 states and 387 transitions. [2021-11-21 00:05:58,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:05:58,374 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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 17 [2021-11-21 00:05:58,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:05:58,376 INFO L225 Difference]: With dead ends: 238 [2021-11-21 00:05:58,376 INFO L226 Difference]: Without dead ends: 204 [2021-11-21 00:05:58,377 INFO L932 BasicCegarLoop]: 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 [2021-11-21 00:05:58,378 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 4 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:05:58,378 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 25 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 00:05:58,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2021-11-21 00:05:58,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2021-11-21 00:05:58,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 201 states have (on average 1.6616915422885572) internal successors, (334), 203 states have internal predecessors, (334), 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) [2021-11-21 00:05:58,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 334 transitions. [2021-11-21 00:05:58,386 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 334 transitions. Word has length 17 [2021-11-21 00:05:58,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:05:58,386 INFO L470 AbstractCegarLoop]: Abstraction has 204 states and 334 transitions. [2021-11-21 00:05:58,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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) [2021-11-21 00:05:58,387 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 334 transitions. [2021-11-21 00:05:58,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-21 00:05:58,388 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:05:58,388 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:05:58,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-21 00:05:58,388 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2021-11-21 00:05:58,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:05:58,393 INFO L85 PathProgramCache]: Analyzing trace with hash 787148356, now seen corresponding path program 1 times [2021-11-21 00:05:58,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:05:58,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812487424] [2021-11-21 00:05:58,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:05:58,394 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:05:58,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:05:58,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:05:58,460 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:05:58,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812487424] [2021-11-21 00:05:58,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812487424] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:05:58,461 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:05:58,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 00:05:58,461 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755046781] [2021-11-21 00:05:58,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:05:58,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:05:58,462 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:05:58,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:05:58,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:05:58,463 INFO L87 Difference]: Start difference. First operand 204 states and 334 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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) [2021-11-21 00:05:58,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:05:58,506 INFO L93 Difference]: Finished difference Result 196 states and 321 transitions. [2021-11-21 00:05:58,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:05:58,507 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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 17 [2021-11-21 00:05:58,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:05:58,508 INFO L225 Difference]: With dead ends: 196 [2021-11-21 00:05:58,509 INFO L226 Difference]: Without dead ends: 0 [2021-11-21 00:05:58,509 INFO L932 BasicCegarLoop]: 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 [2021-11-21 00:05:58,511 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 3 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:05:58,511 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 25 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 00:05:58,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-21 00:05:58,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-21 00:05:58,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-11-21 00:05:58,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-21 00:05:58,512 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2021-11-21 00:05:58,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:05:58,513 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-21 00:05:58,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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) [2021-11-21 00:05:58,513 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-21 00:05:58,513 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-21 00:05:58,517 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (23 of 24 remaining) [2021-11-21 00:05:58,517 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (22 of 24 remaining) [2021-11-21 00:05:58,518 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (21 of 24 remaining) [2021-11-21 00:05:58,518 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (20 of 24 remaining) [2021-11-21 00:05:58,518 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (19 of 24 remaining) [2021-11-21 00:05:58,518 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (18 of 24 remaining) [2021-11-21 00:05:58,518 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (17 of 24 remaining) [2021-11-21 00:05:58,518 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (16 of 24 remaining) [2021-11-21 00:05:58,519 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (15 of 24 remaining) [2021-11-21 00:05:58,519 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (14 of 24 remaining) [2021-11-21 00:05:58,520 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (13 of 24 remaining) [2021-11-21 00:05:58,520 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 24 remaining) [2021-11-21 00:05:58,520 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (11 of 24 remaining) [2021-11-21 00:05:58,520 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (10 of 24 remaining) [2021-11-21 00:05:58,520 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (9 of 24 remaining) [2021-11-21 00:05:58,520 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (8 of 24 remaining) [2021-11-21 00:05:58,521 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (7 of 24 remaining) [2021-11-21 00:05:58,521 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (6 of 24 remaining) [2021-11-21 00:05:58,521 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (5 of 24 remaining) [2021-11-21 00:05:58,524 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (4 of 24 remaining) [2021-11-21 00:05:58,524 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (3 of 24 remaining) [2021-11-21 00:05:58,524 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (2 of 24 remaining) [2021-11-21 00:05:58,524 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (1 of 24 remaining) [2021-11-21 00:05:58,524 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (0 of 24 remaining) [2021-11-21 00:05:58,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-21 00:05:58,527 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:05:58,534 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-21 00:05:58,534 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-21 00:05:58,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 12:05:58 BasicIcfg [2021-11-21 00:05:58,541 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-21 00:05:58,541 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-21 00:05:58,541 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-21 00:05:58,541 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-21 00:05:58,542 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:05:51" (3/4) ... [2021-11-21 00:05:58,543 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-21 00:05:58,549 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-11-21 00:05:58,549 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-11-21 00:05:58,554 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2021-11-21 00:05:58,554 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-21 00:05:58,555 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-21 00:05:58,555 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-21 00:05:58,591 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_199891e8-ead6-45c8-aeb3-c285123df610/bin/utaipan-TEXQjIfE4P/witness.graphml [2021-11-21 00:05:58,591 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-21 00:05:58,592 INFO L158 Benchmark]: Toolchain (without parser) took 8851.34ms. Allocated memory was 115.3MB in the beginning and 186.6MB in the end (delta: 71.3MB). Free memory was 78.2MB in the beginning and 113.0MB in the end (delta: -34.8MB). Peak memory consumption was 35.1MB. Max. memory is 16.1GB. [2021-11-21 00:05:58,592 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 115.3MB. Free memory was 88.6MB in the beginning and 88.6MB in the end (delta: 30.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 00:05:58,592 INFO L158 Benchmark]: CACSL2BoogieTranslator took 600.56ms. Allocated memory is still 115.3MB. Free memory was 78.0MB in the beginning and 81.0MB in the end (delta: -2.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-21 00:05:58,593 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.05ms. Allocated memory is still 115.3MB. Free memory was 81.0MB in the beginning and 78.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 00:05:58,593 INFO L158 Benchmark]: Boogie Preprocessor took 33.02ms. Allocated memory is still 115.3MB. Free memory was 78.9MB in the beginning and 77.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 00:05:58,593 INFO L158 Benchmark]: RCFGBuilder took 632.52ms. Allocated memory is still 115.3MB. Free memory was 77.3MB in the beginning and 62.1MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-21 00:05:58,594 INFO L158 Benchmark]: TraceAbstraction took 7475.12ms. Allocated memory was 115.3MB in the beginning and 186.6MB in the end (delta: 71.3MB). Free memory was 61.6MB in the beginning and 116.1MB in the end (delta: -54.5MB). Peak memory consumption was 18.8MB. Max. memory is 16.1GB. [2021-11-21 00:05:58,594 INFO L158 Benchmark]: Witness Printer took 49.93ms. Allocated memory is still 186.6MB. Free memory was 116.1MB in the beginning and 113.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 00:05:58,596 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 115.3MB. Free memory was 88.6MB in the beginning and 88.6MB in the end (delta: 30.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 600.56ms. Allocated memory is still 115.3MB. Free memory was 78.0MB in the beginning and 81.0MB in the end (delta: -2.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.05ms. Allocated memory is still 115.3MB. Free memory was 81.0MB in the beginning and 78.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.02ms. Allocated memory is still 115.3MB. Free memory was 78.9MB in the beginning and 77.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 632.52ms. Allocated memory is still 115.3MB. Free memory was 77.3MB in the beginning and 62.1MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 7475.12ms. Allocated memory was 115.3MB in the beginning and 186.6MB in the end (delta: 71.3MB). Free memory was 61.6MB in the beginning and 116.1MB in the end (delta: -54.5MB). Peak memory consumption was 18.8MB. Max. memory is 16.1GB. * Witness Printer took 49.93ms. Allocated memory is still 186.6MB. Free memory was 116.1MB in the beginning and 113.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.3s, 163 PlacesBefore, 62 PlacesAfterwards, 158 TransitionsBefore, 55 TransitionsAfterwards, 3576 CoEnabledTransitionPairs, 7 FixpointIterations, 80 TrivialSequentialCompositions, 42 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 0 ConcurrentYvCompositions, 2 ChoiceCompositions, 128 TotalNumberOfCompositions, 16902 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 7242, positive: 6698, positive conditional: 0, positive unconditional: 6698, negative: 544, negative conditional: 0, negative unconditional: 544, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2535, positive: 2452, positive conditional: 0, positive unconditional: 2452, negative: 83, negative conditional: 0, negative unconditional: 83, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2535, positive: 2432, positive conditional: 0, positive unconditional: 2432, negative: 103, negative conditional: 0, negative unconditional: 103, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 103, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 83, negative conditional: 0, negative unconditional: 83, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 167, positive: 33, positive conditional: 0, positive unconditional: 33, negative: 134, negative conditional: 0, negative unconditional: 134, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 7242, positive: 4246, positive conditional: 0, positive unconditional: 4246, negative: 461, negative conditional: 0, negative unconditional: 461, unknown: 2535, unknown conditional: 0, unknown unconditional: 2535] , Statistics on independence cache: Total cache size (in pairs): 643, Positive cache size: 588, Positive conditional cache size: 0, Positive unconditional cache size: 588, Negative cache size: 55, Negative conditional cache size: 0, Negative unconditional cache size: 55 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 697]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 697]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 700]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 700]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 710]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 710]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 719]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 720]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 723]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 724]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 725]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 725]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 219 locations, 24 error locations. Started 1 CEGAR loops. OverallTime: 7.2s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.4s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 124 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 124 mSDsluCounter, 250 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 174 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 420 IncrementalHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 177 mSDtfsCounter, 420 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1303occurred in iteration=0, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 8 MinimizatonAttempts, 206 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 112 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 14 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-11-21 00:05:58,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_199891e8-ead6-45c8-aeb3-c285123df610/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE