./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/ldv-races/race-1_2b-join.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a886395-7917-42ea-8f57-d7d9f1edad21/bin/ugemcutter-aZbSL5k0Dw/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a886395-7917-42ea-8f57-d7d9f1edad21/bin/ugemcutter-aZbSL5k0Dw/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a886395-7917-42ea-8f57-d7d9f1edad21/bin/ugemcutter-aZbSL5k0Dw/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a886395-7917-42ea-8f57-d7d9f1edad21/bin/ugemcutter-aZbSL5k0Dw/config/GemCutterReach.xml -i ../../sv-benchmarks/c/ldv-races/race-1_2b-join.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a886395-7917-42ea-8f57-d7d9f1edad21/bin/ugemcutter-aZbSL5k0Dw/config/svcomp-DataRace-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a886395-7917-42ea-8f57-d7d9f1edad21/bin/ugemcutter-aZbSL5k0Dw --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 475c64db2a2029c09985266553634853aa5ae7653363254bdcc8a56a9d27dc04 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 14:21:42,956 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 14:21:42,958 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 14:21:42,990 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 14:21:42,991 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 14:21:42,992 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 14:21:42,994 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 14:21:42,996 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 14:21:42,999 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 14:21:43,000 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 14:21:43,001 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 14:21:43,003 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 14:21:43,004 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 14:21:43,005 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 14:21:43,006 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 14:21:43,008 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 14:21:43,009 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 14:21:43,010 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 14:21:43,012 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 14:21:43,015 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 14:21:43,017 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 14:21:43,018 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 14:21:43,020 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 14:21:43,021 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 14:21:43,024 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 14:21:43,025 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 14:21:43,025 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 14:21:43,027 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 14:21:43,027 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 14:21:43,028 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 14:21:43,029 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 14:21:43,030 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 14:21:43,031 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 14:21:43,032 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 14:21:43,033 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 14:21:43,033 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 14:21:43,034 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 14:21:43,034 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 14:21:43,035 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 14:21:43,036 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 14:21:43,037 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 14:21:43,038 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a886395-7917-42ea-8f57-d7d9f1edad21/bin/ugemcutter-aZbSL5k0Dw/config/svcomp-DataRace-32bit-GemCutter_Default.epf [2021-11-23 14:21:43,063 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 14:21:43,063 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 14:21:43,063 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 14:21:43,064 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 14:21:43,064 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 14:21:43,065 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 14:21:43,065 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 14:21:43,066 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 14:21:43,066 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 14:21:43,066 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 14:21:43,066 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 14:21:43,066 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 14:21:43,067 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 14:21:43,067 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 14:21:43,067 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 14:21:43,067 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 14:21:43,067 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 14:21:43,067 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 14:21:43,068 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-11-23 14:21:43,068 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 14:21:43,068 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 14:21:43,068 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 14:21:43,068 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 14:21:43,068 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 14:21:43,069 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 14:21:43,069 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-11-23 14:21:43,069 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 14:21:43,069 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 14:21:43,070 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 14:21:43,070 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 14:21:43,070 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 14:21:43,070 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 14:21:43,070 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-11-23 14:21:43,070 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 14:21:43,071 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 14:21:43,071 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-11-23 14:21:43,071 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 14:21:43,071 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-11-23 14:21:43,071 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-11-23 14:21:43,071 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a886395-7917-42ea-8f57-d7d9f1edad21/bin/ugemcutter-aZbSL5k0Dw/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a886395-7917-42ea-8f57-d7d9f1edad21/bin/ugemcutter-aZbSL5k0Dw Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 475c64db2a2029c09985266553634853aa5ae7653363254bdcc8a56a9d27dc04 [2021-11-23 14:21:43,380 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 14:21:43,415 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 14:21:43,419 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 14:21:43,421 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 14:21:43,421 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 14:21:43,423 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a886395-7917-42ea-8f57-d7d9f1edad21/bin/ugemcutter-aZbSL5k0Dw/../../sv-benchmarks/c/ldv-races/race-1_2b-join.i [2021-11-23 14:21:43,492 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a886395-7917-42ea-8f57-d7d9f1edad21/bin/ugemcutter-aZbSL5k0Dw/data/64497747d/c60091664c7b44e6ae0c8725c4c65f45/FLAGa58dd18bc [2021-11-23 14:21:44,151 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 14:21:44,151 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a886395-7917-42ea-8f57-d7d9f1edad21/sv-benchmarks/c/ldv-races/race-1_2b-join.i [2021-11-23 14:21:44,191 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a886395-7917-42ea-8f57-d7d9f1edad21/bin/ugemcutter-aZbSL5k0Dw/data/64497747d/c60091664c7b44e6ae0c8725c4c65f45/FLAGa58dd18bc [2021-11-23 14:21:44,354 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a886395-7917-42ea-8f57-d7d9f1edad21/bin/ugemcutter-aZbSL5k0Dw/data/64497747d/c60091664c7b44e6ae0c8725c4c65f45 [2021-11-23 14:21:44,360 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 14:21:44,362 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 14:21:44,364 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 14:21:44,364 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 14:21:44,367 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 14:21:44,368 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:21:44" (1/1) ... [2021-11-23 14:21:44,369 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ee5a8bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:44, skipping insertion in model container [2021-11-23 14:21:44,369 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:21:44" (1/1) ... [2021-11-23 14:21:44,377 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 14:21:44,428 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 14:21:45,257 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_5a886395-7917-42ea-8f57-d7d9f1edad21/sv-benchmarks/c/ldv-races/race-1_2b-join.i[76069,76082] [2021-11-23 14:21:45,292 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 14:21:45,310 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 14:21:45,385 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_5a886395-7917-42ea-8f57-d7d9f1edad21/sv-benchmarks/c/ldv-races/race-1_2b-join.i[76069,76082] [2021-11-23 14:21:45,403 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 14:21:45,528 INFO L208 MainTranslator]: Completed translation [2021-11-23 14:21:45,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:45 WrapperNode [2021-11-23 14:21:45,529 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 14:21:45,530 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 14:21:45,530 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 14:21:45,531 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 14:21:45,539 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:45" (1/1) ... [2021-11-23 14:21:45,585 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:45" (1/1) ... [2021-11-23 14:21:45,622 INFO L137 Inliner]: procedures = 480, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 114 [2021-11-23 14:21:45,623 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 14:21:45,624 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 14:21:45,624 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 14:21:45,624 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 14:21:45,636 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:45" (1/1) ... [2021-11-23 14:21:45,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:45" (1/1) ... [2021-11-23 14:21:45,642 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:45" (1/1) ... [2021-11-23 14:21:45,652 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:45" (1/1) ... [2021-11-23 14:21:45,678 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:45" (1/1) ... [2021-11-23 14:21:45,681 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:45" (1/1) ... [2021-11-23 14:21:45,686 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:45" (1/1) ... [2021-11-23 14:21:45,693 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 14:21:45,697 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 14:21:45,698 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 14:21:45,698 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 14:21:45,699 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:45" (1/1) ... [2021-11-23 14:21:45,709 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 14:21:45,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a886395-7917-42ea-8f57-d7d9f1edad21/bin/ugemcutter-aZbSL5k0Dw/z3 [2021-11-23 14:21:45,743 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a886395-7917-42ea-8f57-d7d9f1edad21/bin/ugemcutter-aZbSL5k0Dw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 14:21:45,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a886395-7917-42ea-8f57-d7d9f1edad21/bin/ugemcutter-aZbSL5k0Dw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 14:21:45,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 14:21:45,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 14:21:45,785 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-23 14:21:45,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 14:21:45,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 14:21:45,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 14:21:45,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 14:21:45,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 14:21:45,787 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-23 14:21:45,787 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-23 14:21:45,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 14:21:45,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 14:21:45,789 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-23 14:21:46,106 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 14:21:46,108 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 14:21:46,408 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 14:21:46,418 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 14:21:46,419 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 14:21:46,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:21:46 BoogieIcfgContainer [2021-11-23 14:21:46,421 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 14:21:46,423 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 14:21:46,423 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 14:21:46,434 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 14:21:46,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:21:44" (1/3) ... [2021-11-23 14:21:46,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ae03e9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:21:46, skipping insertion in model container [2021-11-23 14:21:46,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:45" (2/3) ... [2021-11-23 14:21:46,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ae03e9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:21:46, skipping insertion in model container [2021-11-23 14:21:46,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:21:46" (3/3) ... [2021-11-23 14:21:46,444 INFO L111 eAbstractionObserver]: Analyzing ICFG race-1_2b-join.i [2021-11-23 14:21:46,449 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-23 14:21:46,450 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 14:21:46,450 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2021-11-23 14:21:46,450 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-23 14:21:46,484 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:46,484 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:46,484 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:46,485 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:46,485 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:46,485 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:46,486 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:46,486 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:46,486 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:46,487 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:46,487 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:46,487 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:46,487 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:46,488 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:46,488 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:46,488 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:46,489 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:46,489 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:46,489 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:46,489 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:46,490 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:46,490 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:46,490 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:46,491 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:46,491 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:46,491 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:46,496 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:46,497 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:46,497 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:46,497 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:46,498 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:46,499 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:46,504 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-11-23 14:21:46,572 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-23 14:21:46,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a886395-7917-42ea-8f57-d7d9f1edad21/bin/ugemcutter-aZbSL5k0Dw/z3 [2021-11-23 14:21:46,588 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a886395-7917-42ea-8f57-d7d9f1edad21/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-23 14:21:46,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a886395-7917-42ea-8f57-d7d9f1edad21/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2021-11-23 14:21:46,641 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread1Thread1of1ForFork0 ======== [2021-11-23 14:21:46,652 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=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 14:21:46,653 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 14:21:46,802 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE] === [2021-11-23 14:21:46,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:21:46,809 INFO L85 PathProgramCache]: Analyzing trace with hash 603948916, now seen corresponding path program 1 times [2021-11-23 14:21:46,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:21:46,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677674339] [2021-11-23 14:21:46,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:21:46,820 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:21:47,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:21:47,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:21:47,228 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:21:47,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677674339] [2021-11-23 14:21:47,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677674339] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:21:47,230 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:21:47,230 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 14:21:47,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010905387] [2021-11-23 14:21:47,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:21:47,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 14:21:47,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:21:47,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 14:21:47,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 14:21:47,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:21:47,261 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:21:47,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 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) [2021-11-23 14:21:47,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:21:47,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:21:47,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 14:21:47,281 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE] === [2021-11-23 14:21:47,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:21:47,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1154696425, now seen corresponding path program 1 times [2021-11-23 14:21:47,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:21:47,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507911182] [2021-11-23 14:21:47,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:21:47,283 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:21:47,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:21:47,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:21:47,471 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:21:47,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507911182] [2021-11-23 14:21:47,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507911182] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:21:47,472 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:21:47,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 14:21:47,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867249663] [2021-11-23 14:21:47,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:21:47,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 14:21:47,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:21:47,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 14:21:47,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 14:21:47,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:21:47,475 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:21:47,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 30.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2021-11-23 14:21:47,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:21:47,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:21:47,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:21:47,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:21:47,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 14:21:47,552 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE] === [2021-11-23 14:21:47,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:21:47,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1561743686, now seen corresponding path program 1 times [2021-11-23 14:21:47,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:21:47,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245813476] [2021-11-23 14:21:47,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:21:47,555 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:21:47,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 14:21:47,612 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 14:21:47,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 14:21:47,679 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 14:21:47,679 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-23 14:21:47,681 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (0 of 1 remaining) [2021-11-23 14:21:47,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 14:21:47,698 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-23 14:21:47,699 INFO L308 ceAbstractionStarter]: Result for error location thread1Thread1of1ForFork0 was UNSAFE (1/2) [2021-11-23 14:21:47,703 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-23 14:21:47,704 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 14:21:47,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:21:47 BasicIcfg [2021-11-23 14:21:47,773 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 14:21:47,774 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 14:21:47,774 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 14:21:47,774 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 14:21:47,775 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:21:46" (3/4) ... [2021-11-23 14:21:47,778 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-23 14:21:47,778 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 14:21:47,779 INFO L158 Benchmark]: Toolchain (without parser) took 3416.85ms. Allocated memory was 104.9MB in the beginning and 153.1MB in the end (delta: 48.2MB). Free memory was 71.6MB in the beginning and 104.2MB in the end (delta: -32.7MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2021-11-23 14:21:47,780 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 104.9MB. Free memory is still 61.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 14:21:47,780 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1165.47ms. Allocated memory was 104.9MB in the beginning and 153.1MB in the end (delta: 48.2MB). Free memory was 71.6MB in the beginning and 86.7MB in the end (delta: -15.1MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2021-11-23 14:21:47,781 INFO L158 Benchmark]: Boogie Procedure Inliner took 93.28ms. Allocated memory is still 153.1MB. Free memory was 86.1MB in the beginning and 83.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 14:21:47,781 INFO L158 Benchmark]: Boogie Preprocessor took 72.55ms. Allocated memory is still 153.1MB. Free memory was 82.8MB in the beginning and 80.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 14:21:47,782 INFO L158 Benchmark]: RCFGBuilder took 724.01ms. Allocated memory is still 153.1MB. Free memory was 80.7MB in the beginning and 110.8MB in the end (delta: -30.0MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. [2021-11-23 14:21:47,782 INFO L158 Benchmark]: TraceAbstraction took 1350.27ms. Allocated memory is still 153.1MB. Free memory was 109.8MB in the beginning and 104.2MB in the end (delta: 5.6MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. [2021-11-23 14:21:47,787 INFO L158 Benchmark]: Witness Printer took 4.43ms. Allocated memory is still 153.1MB. Free memory is still 104.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 14:21:47,790 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 104.9MB. Free memory is still 61.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1165.47ms. Allocated memory was 104.9MB in the beginning and 153.1MB in the end (delta: 48.2MB). Free memory was 71.6MB in the beginning and 86.7MB in the end (delta: -15.1MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 93.28ms. Allocated memory is still 153.1MB. Free memory was 86.1MB in the beginning and 83.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 72.55ms. Allocated memory is still 153.1MB. Free memory was 82.8MB in the beginning and 80.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 724.01ms. Allocated memory is still 153.1MB. Free memory was 80.7MB in the beginning and 110.8MB in the end (delta: -30.0MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1350.27ms. Allocated memory is still 153.1MB. Free memory was 109.8MB in the beginning and 104.2MB in the end (delta: 5.6MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. * Witness Printer took 4.43ms. Allocated memory is still 153.1MB. Free memory is still 104.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 383, positive: 349, positive conditional: 40, positive unconditional: 309, negative: 34, negative conditional: 25, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 372, positive: 349, positive conditional: 40, positive unconditional: 309, negative: 23, negative conditional: 14, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 372, positive: 349, positive conditional: 40, positive unconditional: 309, negative: 23, negative conditional: 14, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 374, positive: 349, positive conditional: 6, positive unconditional: 343, negative: 25, negative conditional: 2, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 374, positive: 349, positive conditional: 6, positive unconditional: 343, negative: 25, negative conditional: 2, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 374, positive: 349, positive conditional: 6, positive unconditional: 343, negative: 25, negative conditional: 2, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 321, positive: 310, positive conditional: 1, positive unconditional: 309, negative: 11, negative conditional: 1, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 321, positive: 309, positive conditional: 0, positive unconditional: 309, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 12, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 11, negative conditional: 1, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 56, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 55, negative conditional: 4, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 374, positive: 39, positive conditional: 5, positive unconditional: 34, negative: 14, negative conditional: 1, negative unconditional: 13, unknown: 321, unknown conditional: 2, unknown unconditional: 319] , Statistics on independence cache: Total cache size (in pairs): 321, Positive cache size: 310, Positive conditional cache size: 1, Positive unconditional cache size: 309, Negative cache size: 11, Negative conditional cache size: 1, Negative unconditional cache size: 10, Eliminated conditions: 0, Maximal queried relation: 1, Independence queries for same thread: 11 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.1s, Number of persistent set computation: 65, Number of trivial persistent sets: 60, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 318, positive: 309, positive conditional: 0, positive unconditional: 309, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 383, positive: 349, positive conditional: 40, positive unconditional: 309, negative: 34, negative conditional: 25, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 372, positive: 349, positive conditional: 40, positive unconditional: 309, negative: 23, negative conditional: 14, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 372, positive: 349, positive conditional: 40, positive unconditional: 309, negative: 23, negative conditional: 14, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 374, positive: 349, positive conditional: 6, positive unconditional: 343, negative: 25, negative conditional: 2, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 374, positive: 349, positive conditional: 6, positive unconditional: 343, negative: 25, negative conditional: 2, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 374, positive: 349, positive conditional: 6, positive unconditional: 343, negative: 25, negative conditional: 2, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 321, positive: 310, positive conditional: 1, positive unconditional: 309, negative: 11, negative conditional: 1, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 321, positive: 309, positive conditional: 0, positive unconditional: 309, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 12, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 11, negative conditional: 1, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 56, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 55, negative conditional: 4, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 374, positive: 39, positive conditional: 5, positive unconditional: 34, negative: 14, negative conditional: 1, negative unconditional: 13, unknown: 321, unknown conditional: 2, unknown unconditional: 319] , Statistics on independence cache: Total cache size (in pairs): 321, Positive cache size: 310, Positive conditional cache size: 1, Positive unconditional cache size: 309, Negative cache size: 11, Negative conditional cache size: 1, Negative unconditional cache size: 10, Eliminated conditions: 0, Maximal queried relation: 1, Independence queries for same thread: 11 - 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 - DataRaceFoundResult [Line: 1699]: Data race detected Data race detected The following path leads to a data race: [L1694] 0 pthread_t t1; VAL [t1={3:0}] [L1695] 0 pthread_mutex_t mutex; VAL [mutex={4:0}, t1={3:0}] [L1696] 0 int pdev; VAL [mutex={4:0}, pdev=0, t1={3:0}] [L1726] CALL 0 module_init() [L1705] 0 pdev = 1 VAL [mutex={4:0}, pdev=1, t1={3:0}] [L1706] EXPR 0 pdev==1 VAL [mutex={4:0}, pdev=1, t1={3:0}] [L1706] CALL 0 ldv_assert(pdev==1) [L1693] COND FALSE 0 !(!expression) VAL [\old(expression)=1, expression=1, mutex={4:0}, pdev=1, t1={3:0}] [L1706] RET 0 ldv_assert(pdev==1) [L1707] COND TRUE 0 __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=1, mutex={4:0}, pdev=1, t1={3:0}] [L1708] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={4:0}, pdev=1, pthread_create(&t1, ((void *)0), thread1, ((void *)0))=-1, t1={3:0}] [L1709] 0 pdev = 2 VAL [arg={0:0}, arg={0:0}, mutex={4:0}, pdev=2, t1={3:0}] [L1699] 1 pdev = 6 VAL [arg={0:0}, arg={0:0}, mutex={4:0}, pdev=6, t1={3:0}] [L1709] 0 pdev = 2 VAL [arg={0:0}, arg={0:0}, mutex={4:0}, pdev=6, pdev = 2=1152, t1={3:0}] [L1699] 1 pdev = 6 VAL [arg={0:0}, arg={0:0}, mutex={4:0}, pdev=6, pdev = 6=1152, t1={3:0}] [L1709] 0 pdev = 2 VAL [arg={0:0}, arg={0:0}, mutex={4:0}, pdev=6, pdev = 6=1152, t1={3:0}] [L1710] 0 pdev==2 VAL [arg={0:0}, arg={0:0}, mutex={4:0}, pdev=6, pdev = 6=1152, t1={3:0}] [L1699] 1 pdev = 6 VAL [arg={0:0}, arg={0:0}, mutex={4:0}, pdev=6, pdev = 6=1152, t1={3:0}] Now there is a data race on ~pdev~0 between C: pdev==2 [1710] and C: pdev = 6 [1699] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: thread1Thread1of1ForFork0 with 1 thread instances CFG has 3 procedures, 162 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.2s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 184 NumberOfCodeBlocks, 184 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 120 ConstructedInterpolants, 0 QuantifiedInterpolants, 124 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 14:21:47,888 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a886395-7917-42ea-8f57-d7d9f1edad21/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2021-11-23 14:21:48,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a886395-7917-42ea-8f57-d7d9f1edad21/bin/ugemcutter-aZbSL5k0Dw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE