./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/18_read_write_lock.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6a47aea7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb402982-fee1-4b2c-8e3b-38b1315b7cde/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb402982-fee1-4b2c-8e3b-38b1315b7cde/bin/utaipan-fb15Y9Yzbl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb402982-fee1-4b2c-8e3b-38b1315b7cde/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb402982-fee1-4b2c-8e3b-38b1315b7cde/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-ext/18_read_write_lock.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb402982-fee1-4b2c-8e3b-38b1315b7cde/bin/utaipan-fb15Y9Yzbl/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb402982-fee1-4b2c-8e3b-38b1315b7cde/bin/utaipan-fb15Y9Yzbl --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 72289b7b84ec29dc48aff6fa2f8d521998f594af518139867a01f104107e1865 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:01:23,051 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:01:23,055 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:01:23,141 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:01:23,142 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:01:23,149 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:01:23,151 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:01:23,153 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:01:23,156 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:01:23,157 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:01:23,159 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:01:23,161 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:01:23,161 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:01:23,163 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:01:23,164 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:01:23,166 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:01:23,167 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:01:23,169 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:01:23,171 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:01:23,174 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:01:23,177 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:01:23,178 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:01:23,180 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:01:23,181 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:01:23,186 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:01:23,186 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:01:23,187 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:01:23,188 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:01:23,189 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:01:23,190 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:01:23,191 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:01:23,192 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:01:23,193 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:01:23,194 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:01:23,196 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:01:23,197 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:01:23,198 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:01:23,198 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:01:23,199 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:01:23,200 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:01:23,201 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:01:23,202 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb402982-fee1-4b2c-8e3b-38b1315b7cde/bin/utaipan-fb15Y9Yzbl/config/svcomp-DataRace-32bit-Taipan_Default.epf [2021-11-23 17:01:23,229 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:01:23,229 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:01:23,230 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:01:23,230 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:01:23,231 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:01:23,231 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:01:23,231 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:01:23,232 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:01:23,232 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:01:23,232 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:01:23,232 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:01:23,233 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:01:23,233 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:01:23,233 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:01:23,233 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:01:23,234 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:01:23,234 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:01:23,234 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:01:23,235 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:01:23,235 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:01:23,236 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 17:01:23,236 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:01:23,236 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:01:23,236 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:01:23,237 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:01:23,237 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:01:23,237 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:01:23,237 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-11-23 17:01:23,238 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:01:23,238 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:01:23,238 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:01:23,238 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:01:23,239 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:01:23,239 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:01:23,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:01:23,239 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:01:23,240 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:01:23,240 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:01:23,240 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:01:23,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:01:23,241 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:01:23,241 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:01:23,241 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:01:23,241 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_cb402982-fee1-4b2c-8e3b-38b1315b7cde/bin/utaipan-fb15Y9Yzbl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb402982-fee1-4b2c-8e3b-38b1315b7cde/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 72289b7b84ec29dc48aff6fa2f8d521998f594af518139867a01f104107e1865 [2021-11-23 17:01:23,606 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:01:23,648 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:01:23,651 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:01:23,653 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:01:23,654 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:01:23,656 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb402982-fee1-4b2c-8e3b-38b1315b7cde/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/pthread-ext/18_read_write_lock.i [2021-11-23 17:01:23,761 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb402982-fee1-4b2c-8e3b-38b1315b7cde/bin/utaipan-fb15Y9Yzbl/data/f1c9343b3/95b6f2859b2d4d66a1d666add83b1aee/FLAG664ff01da [2021-11-23 17:01:24,480 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:01:24,481 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb402982-fee1-4b2c-8e3b-38b1315b7cde/sv-benchmarks/c/pthread-ext/18_read_write_lock.i [2021-11-23 17:01:24,501 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb402982-fee1-4b2c-8e3b-38b1315b7cde/bin/utaipan-fb15Y9Yzbl/data/f1c9343b3/95b6f2859b2d4d66a1d666add83b1aee/FLAG664ff01da [2021-11-23 17:01:24,731 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb402982-fee1-4b2c-8e3b-38b1315b7cde/bin/utaipan-fb15Y9Yzbl/data/f1c9343b3/95b6f2859b2d4d66a1d666add83b1aee [2021-11-23 17:01:24,734 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:01:24,736 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:01:24,739 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:01:24,739 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:01:24,744 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:01:24,747 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:01:24" (1/1) ... [2021-11-23 17:01:24,750 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2441f83c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:24, skipping insertion in model container [2021-11-23 17:01:24,751 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:01:24" (1/1) ... [2021-11-23 17:01:24,760 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:01:24,826 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:01:25,082 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-11-23 17:01:25,260 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_cb402982-fee1-4b2c-8e3b-38b1315b7cde/sv-benchmarks/c/pthread-ext/18_read_write_lock.i[31161,31174] [2021-11-23 17:01:25,267 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:01:25,277 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:01:25,296 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-11-23 17:01:25,325 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_cb402982-fee1-4b2c-8e3b-38b1315b7cde/sv-benchmarks/c/pthread-ext/18_read_write_lock.i[31161,31174] [2021-11-23 17:01:25,329 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:01:25,378 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:01:25,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:25 WrapperNode [2021-11-23 17:01:25,379 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:01:25,381 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:01:25,381 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:01:25,381 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:01:25,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:25" (1/1) ... [2021-11-23 17:01:25,407 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:25" (1/1) ... [2021-11-23 17:01:25,437 INFO L137 Inliner]: procedures = 174, calls = 32, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 118 [2021-11-23 17:01:25,438 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:01:25,439 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:01:25,439 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:01:25,439 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:01:25,449 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:25" (1/1) ... [2021-11-23 17:01:25,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:25" (1/1) ... [2021-11-23 17:01:25,453 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:25" (1/1) ... [2021-11-23 17:01:25,454 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:25" (1/1) ... [2021-11-23 17:01:25,461 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:25" (1/1) ... [2021-11-23 17:01:25,464 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:25" (1/1) ... [2021-11-23 17:01:25,467 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:25" (1/1) ... [2021-11-23 17:01:25,471 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:01:25,472 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:01:25,472 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:01:25,472 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:01:25,473 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:25" (1/1) ... [2021-11-23 17:01:25,482 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:01:25,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb402982-fee1-4b2c-8e3b-38b1315b7cde/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:01:25,515 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb402982-fee1-4b2c-8e3b-38b1315b7cde/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:01:25,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb402982-fee1-4b2c-8e3b-38b1315b7cde/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:01:25,569 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-11-23 17:01:25,569 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-11-23 17:01:25,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 17:01:25,570 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-23 17:01:25,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:01:25,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 17:01:25,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 17:01:25,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:01:25,571 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-23 17:01:25,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:01:25,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:01:25,573 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-23 17:01:25,723 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:01:25,726 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:01:25,968 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:01:26,053 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.addBranchEncoders(TransFormulaBuilder.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.parallelComposition(TransFormulaUtils.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.ParallelComposition.(ParallelComposition.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CodeBlockFactory.constructParallelComposition(CodeBlockFactory.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.composeParallel(CfgBuilder.java:1792) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.(CfgBuilder.java:1653) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:284) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 17:01:26,059 INFO L158 Benchmark]: Toolchain (without parser) took 1321.78ms. Allocated memory is still 115.3MB. Free memory was 79.8MB in the beginning and 62.8MB in the end (delta: 17.0MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. [2021-11-23 17:01:26,060 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 115.3MB. Free memory was 89.4MB in the beginning and 89.4MB in the end (delta: 28.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:01:26,061 INFO L158 Benchmark]: CACSL2BoogieTranslator took 640.97ms. Allocated memory is still 115.3MB. Free memory was 79.7MB in the beginning and 81.2MB in the end (delta: -1.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 17:01:26,062 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.36ms. Allocated memory is still 115.3MB. Free memory was 81.2MB in the beginning and 79.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:01:26,063 INFO L158 Benchmark]: Boogie Preprocessor took 32.20ms. Allocated memory is still 115.3MB. Free memory was 79.0MB in the beginning and 78.0MB in the end (delta: 974.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:01:26,064 INFO L158 Benchmark]: RCFGBuilder took 584.89ms. Allocated memory is still 115.3MB. Free memory was 78.0MB in the beginning and 62.8MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-23 17:01:26,069 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 115.3MB. Free memory was 89.4MB in the beginning and 89.4MB in the end (delta: 28.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 640.97ms. Allocated memory is still 115.3MB. Free memory was 79.7MB in the beginning and 81.2MB in the end (delta: -1.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.36ms. Allocated memory is still 115.3MB. Free memory was 81.2MB in the beginning and 79.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.20ms. Allocated memory is still 115.3MB. Free memory was 79.0MB in the beginning and 78.0MB in the end (delta: 974.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 584.89ms. Allocated memory is still 115.3MB. Free memory was 78.0MB in the beginning and 62.8MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 17:01:26,130 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb402982-fee1-4b2c-8e3b-38b1315b7cde/bin/utaipan-fb15Y9Yzbl/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb402982-fee1-4b2c-8e3b-38b1315b7cde/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb402982-fee1-4b2c-8e3b-38b1315b7cde/bin/utaipan-fb15Y9Yzbl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb402982-fee1-4b2c-8e3b-38b1315b7cde/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb402982-fee1-4b2c-8e3b-38b1315b7cde/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-ext/18_read_write_lock.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb402982-fee1-4b2c-8e3b-38b1315b7cde/bin/utaipan-fb15Y9Yzbl/config/svcomp-DataRace-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb402982-fee1-4b2c-8e3b-38b1315b7cde/bin/utaipan-fb15Y9Yzbl --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 72289b7b84ec29dc48aff6fa2f8d521998f594af518139867a01f104107e1865 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:01:28,890 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:01:28,894 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:01:28,955 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:01:28,956 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:01:28,961 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:01:28,963 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:01:28,968 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:01:28,972 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:01:28,980 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:01:28,982 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:01:28,984 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:01:28,984 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:01:28,987 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:01:28,990 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:01:28,994 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:01:28,996 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:01:28,998 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:01:29,008 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:01:29,019 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:01:29,022 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:01:29,024 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:01:29,027 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:01:29,030 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:01:29,040 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:01:29,041 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:01:29,041 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:01:29,044 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:01:29,044 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:01:29,046 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:01:29,047 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:01:29,048 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:01:29,050 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:01:29,051 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:01:29,053 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:01:29,053 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:01:29,054 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:01:29,055 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:01:29,055 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:01:29,057 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:01:29,058 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:01:29,063 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb402982-fee1-4b2c-8e3b-38b1315b7cde/bin/utaipan-fb15Y9Yzbl/config/svcomp-DataRace-32bit-Taipan_Bitvector.epf [2021-11-23 17:01:29,114 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:01:29,115 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:01:29,116 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:01:29,116 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:01:29,117 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:01:29,118 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:01:29,118 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:01:29,118 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:01:29,119 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:01:29,119 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:01:29,120 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:01:29,121 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:01:29,123 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:01:29,123 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:01:29,123 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 17:01:29,124 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:01:29,124 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:01:29,124 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:01:29,124 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:01:29,125 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:01:29,125 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-11-23 17:01:29,125 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:01:29,126 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:01:29,126 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:01:29,126 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:01:29,126 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:01:29,127 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:01:29,127 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:01:29,127 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:01:29,128 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:01:29,128 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:01:29,128 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:01:29,129 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:01:29,129 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:01:29,130 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:01:29,130 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:01:29,130 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:01:29,131 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:01:29,131 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:01:29,131 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_cb402982-fee1-4b2c-8e3b-38b1315b7cde/bin/utaipan-fb15Y9Yzbl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb402982-fee1-4b2c-8e3b-38b1315b7cde/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 72289b7b84ec29dc48aff6fa2f8d521998f594af518139867a01f104107e1865 [2021-11-23 17:01:29,542 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:01:29,582 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:01:29,585 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:01:29,587 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:01:29,589 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:01:29,590 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb402982-fee1-4b2c-8e3b-38b1315b7cde/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/pthread-ext/18_read_write_lock.i [2021-11-23 17:01:29,681 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb402982-fee1-4b2c-8e3b-38b1315b7cde/bin/utaipan-fb15Y9Yzbl/data/2c9cf0a6f/96749e91316d457da7b147e4e5cb8598/FLAGe460fb2d0 [2021-11-23 17:01:30,436 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:01:30,438 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb402982-fee1-4b2c-8e3b-38b1315b7cde/sv-benchmarks/c/pthread-ext/18_read_write_lock.i [2021-11-23 17:01:30,458 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb402982-fee1-4b2c-8e3b-38b1315b7cde/bin/utaipan-fb15Y9Yzbl/data/2c9cf0a6f/96749e91316d457da7b147e4e5cb8598/FLAGe460fb2d0 [2021-11-23 17:01:30,700 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb402982-fee1-4b2c-8e3b-38b1315b7cde/bin/utaipan-fb15Y9Yzbl/data/2c9cf0a6f/96749e91316d457da7b147e4e5cb8598 [2021-11-23 17:01:30,704 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:01:30,707 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:01:30,713 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:01:30,714 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:01:30,719 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:01:30,720 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:01:30" (1/1) ... [2021-11-23 17:01:30,722 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f37de27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:30, skipping insertion in model container [2021-11-23 17:01:30,722 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:01:30" (1/1) ... [2021-11-23 17:01:30,732 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:01:30,798 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:01:31,008 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-11-23 17:01:31,233 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_cb402982-fee1-4b2c-8e3b-38b1315b7cde/sv-benchmarks/c/pthread-ext/18_read_write_lock.i[31161,31174] [2021-11-23 17:01:31,244 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:01:31,276 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:01:31,311 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-11-23 17:01:31,355 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_cb402982-fee1-4b2c-8e3b-38b1315b7cde/sv-benchmarks/c/pthread-ext/18_read_write_lock.i[31161,31174] [2021-11-23 17:01:31,359 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:01:31,404 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:01:31,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:31 WrapperNode [2021-11-23 17:01:31,405 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:01:31,406 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:01:31,406 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:01:31,407 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:01:31,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:31" (1/1) ... [2021-11-23 17:01:31,433 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:31" (1/1) ... [2021-11-23 17:01:31,466 INFO L137 Inliner]: procedures = 177, calls = 32, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 119 [2021-11-23 17:01:31,469 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:01:31,470 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:01:31,471 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:01:31,471 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:01:31,480 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:31" (1/1) ... [2021-11-23 17:01:31,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:31" (1/1) ... [2021-11-23 17:01:31,500 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:31" (1/1) ... [2021-11-23 17:01:31,502 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:31" (1/1) ... [2021-11-23 17:01:31,511 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:31" (1/1) ... [2021-11-23 17:01:31,523 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:31" (1/1) ... [2021-11-23 17:01:31,527 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:31" (1/1) ... [2021-11-23 17:01:31,545 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:01:31,546 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:01:31,547 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:01:31,547 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:01:31,548 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:31" (1/1) ... [2021-11-23 17:01:31,556 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:01:31,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb402982-fee1-4b2c-8e3b-38b1315b7cde/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:01:31,587 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb402982-fee1-4b2c-8e3b-38b1315b7cde/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:01:31,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb402982-fee1-4b2c-8e3b-38b1315b7cde/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:01:31,654 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-11-23 17:01:31,655 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-11-23 17:01:31,655 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-23 17:01:31,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:01:31,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 17:01:31,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 17:01:31,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 17:01:31,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:01:31,656 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-23 17:01:31,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:01:31,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:01:31,658 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 17:01:31,871 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:01:31,873 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:01:32,191 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:01:32,255 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.addBranchEncoders(TransFormulaBuilder.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.parallelComposition(TransFormulaUtils.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.ParallelComposition.(ParallelComposition.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CodeBlockFactory.constructParallelComposition(CodeBlockFactory.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.composeParallel(CfgBuilder.java:1792) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.(CfgBuilder.java:1653) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:284) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 17:01:32,264 INFO L158 Benchmark]: Toolchain (without parser) took 1553.56ms. Allocated memory was 62.9MB in the beginning and 90.2MB in the end (delta: 27.3MB). Free memory was 41.8MB in the beginning and 65.7MB in the end (delta: -23.9MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. [2021-11-23 17:01:32,265 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 62.9MB. Free memory was 43.6MB in the beginning and 43.5MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:01:32,267 INFO L158 Benchmark]: CACSL2BoogieTranslator took 691.95ms. Allocated memory is still 62.9MB. Free memory was 41.6MB in the beginning and 37.9MB in the end (delta: 3.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-23 17:01:32,268 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.98ms. Allocated memory is still 62.9MB. Free memory was 37.9MB in the beginning and 35.6MB in the end (delta: 2.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 17:01:32,269 INFO L158 Benchmark]: Boogie Preprocessor took 75.39ms. Allocated memory is still 62.9MB. Free memory was 35.6MB in the beginning and 34.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:01:32,270 INFO L158 Benchmark]: RCFGBuilder took 713.80ms. Allocated memory was 62.9MB in the beginning and 90.2MB in the end (delta: 27.3MB). Free memory was 33.8MB in the beginning and 65.7MB in the end (delta: -31.9MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. [2021-11-23 17:01:32,279 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 62.9MB. Free memory was 43.6MB in the beginning and 43.5MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 691.95ms. Allocated memory is still 62.9MB. Free memory was 41.6MB in the beginning and 37.9MB in the end (delta: 3.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.98ms. Allocated memory is still 62.9MB. Free memory was 37.9MB in the beginning and 35.6MB in the end (delta: 2.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 75.39ms. Allocated memory is still 62.9MB. Free memory was 35.6MB in the beginning and 34.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 713.80ms. Allocated memory was 62.9MB in the beginning and 90.2MB in the end (delta: 27.3MB). Free memory was 33.8MB in the beginning and 65.7MB in the end (delta: -31.9MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 17:01:32,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb402982-fee1-4b2c-8e3b-38b1315b7cde/bin/utaipan-fb15Y9Yzbl/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: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable