./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-complex/bounded_buffer.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcd5dcc-4d9b-4b37-8683-e5a404e241f3/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcd5dcc-4d9b-4b37-8683-e5a404e241f3/bin/utaipan-6cKwYrpEi9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcd5dcc-4d9b-4b37-8683-e5a404e241f3/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcd5dcc-4d9b-4b37-8683-e5a404e241f3/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-complex/bounded_buffer.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcd5dcc-4d9b-4b37-8683-e5a404e241f3/bin/utaipan-6cKwYrpEi9/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcd5dcc-4d9b-4b37-8683-e5a404e241f3/bin/utaipan-6cKwYrpEi9 --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 6780d9b269575eab8bb01b5a192a21fa771f6fcc4c495cab5abe1df10d7681d5 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 20:22:15,945 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 20:22:15,947 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 20:22:15,979 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 20:22:15,980 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 20:22:15,981 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 20:22:15,983 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 20:22:15,985 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 20:22:15,987 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 20:22:15,989 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 20:22:15,990 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 20:22:15,991 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 20:22:15,992 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 20:22:15,993 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 20:22:15,995 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 20:22:15,996 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 20:22:15,997 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 20:22:15,999 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 20:22:16,001 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 20:22:16,004 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 20:22:16,006 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 20:22:16,008 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 20:22:16,009 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 20:22:16,010 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 20:22:16,015 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 20:22:16,016 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 20:22:16,017 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 20:22:16,018 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 20:22:16,019 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 20:22:16,020 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 20:22:16,020 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 20:22:16,021 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 20:22:16,022 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 20:22:16,023 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 20:22:16,025 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 20:22:16,025 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 20:22:16,026 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 20:22:16,027 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 20:22:16,027 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 20:22:16,028 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 20:22:16,029 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 20:22:16,038 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcd5dcc-4d9b-4b37-8683-e5a404e241f3/bin/utaipan-6cKwYrpEi9/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-20 20:22:16,087 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 20:22:16,088 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 20:22:16,089 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 20:22:16,089 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 20:22:16,090 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 20:22:16,091 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 20:22:16,091 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 20:22:16,091 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 20:22:16,091 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 20:22:16,092 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-20 20:22:16,093 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 20:22:16,093 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 20:22:16,093 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-20 20:22:16,094 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-20 20:22:16,094 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 20:22:16,094 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-20 20:22:16,094 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-20 20:22:16,095 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-20 20:22:16,095 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 20:22:16,096 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 20:22:16,096 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 20:22:16,096 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 20:22:16,096 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 20:22:16,097 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 20:22:16,097 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 20:22:16,097 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 20:22:16,098 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 20:22:16,098 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 20:22:16,098 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 20:22:16,099 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 20:22:16,099 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 20:22:16,099 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 20:22:16,100 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 20:22:16,100 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 20:22:16,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:22:16,100 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 20:22:16,101 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-20 20:22:16,101 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 20:22:16,101 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 20:22:16,101 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-20 20:22:16,102 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 20:22:16,102 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 20:22:16,102 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 20:22:16,102 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_0dcd5dcc-4d9b-4b37-8683-e5a404e241f3/bin/utaipan-6cKwYrpEi9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcd5dcc-4d9b-4b37-8683-e5a404e241f3/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6780d9b269575eab8bb01b5a192a21fa771f6fcc4c495cab5abe1df10d7681d5 [2022-11-20 20:22:16,451 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 20:22:16,493 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 20:22:16,498 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 20:22:16,500 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 20:22:16,500 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 20:22:16,502 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcd5dcc-4d9b-4b37-8683-e5a404e241f3/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/pthread-complex/bounded_buffer.i [2022-11-20 20:22:20,265 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 20:22:20,854 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 20:22:20,861 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcd5dcc-4d9b-4b37-8683-e5a404e241f3/sv-benchmarks/c/pthread-complex/bounded_buffer.i [2022-11-20 20:22:20,897 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcd5dcc-4d9b-4b37-8683-e5a404e241f3/bin/utaipan-6cKwYrpEi9/data/4c916e6a2/5a7066549b5e4ebb861df61fcdd2d6e6/FLAGce501c515 [2022-11-20 20:22:20,916 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcd5dcc-4d9b-4b37-8683-e5a404e241f3/bin/utaipan-6cKwYrpEi9/data/4c916e6a2/5a7066549b5e4ebb861df61fcdd2d6e6 [2022-11-20 20:22:20,924 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 20:22:20,926 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 20:22:20,932 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 20:22:20,932 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 20:22:20,938 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 20:22:20,938 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:22:20" (1/1) ... [2022-11-20 20:22:20,940 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7acebd7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:22:20, skipping insertion in model container [2022-11-20 20:22:20,941 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:22:20" (1/1) ... [2022-11-20 20:22:20,950 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 20:22:21,042 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 20:22:22,028 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcd5dcc-4d9b-4b37-8683-e5a404e241f3/sv-benchmarks/c/pthread-complex/bounded_buffer.i[70002,70015] [2022-11-20 20:22:22,102 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:22:22,117 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 20:22:22,272 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcd5dcc-4d9b-4b37-8683-e5a404e241f3/sv-benchmarks/c/pthread-complex/bounded_buffer.i[70002,70015] [2022-11-20 20:22:22,331 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:22:22,488 INFO L208 MainTranslator]: Completed translation [2022-11-20 20:22:22,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:22:22 WrapperNode [2022-11-20 20:22:22,489 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 20:22:22,491 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 20:22:22,491 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 20:22:22,491 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 20:22:22,501 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:22:22" (1/1) ... [2022-11-20 20:22:22,568 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:22:22" (1/1) ... [2022-11-20 20:22:22,716 INFO L138 Inliner]: procedures = 428, calls = 126, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 873 [2022-11-20 20:22:22,717 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 20:22:22,718 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 20:22:22,718 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 20:22:22,718 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 20:22:22,765 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:22:22" (1/1) ... [2022-11-20 20:22:22,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:22:22" (1/1) ... [2022-11-20 20:22:22,798 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:22:22" (1/1) ... [2022-11-20 20:22:22,799 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:22:22" (1/1) ... [2022-11-20 20:22:22,870 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:22:22" (1/1) ... [2022-11-20 20:22:22,880 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:22:22" (1/1) ... [2022-11-20 20:22:22,886 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:22:22" (1/1) ... [2022-11-20 20:22:22,892 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:22:22" (1/1) ... [2022-11-20 20:22:22,904 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 20:22:22,905 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 20:22:22,905 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 20:22:22,905 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 20:22:22,906 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:22:22" (1/1) ... [2022-11-20 20:22:22,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:22:22,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcd5dcc-4d9b-4b37-8683-e5a404e241f3/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:22:22,948 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcd5dcc-4d9b-4b37-8683-e5a404e241f3/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 20:22:22,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcd5dcc-4d9b-4b37-8683-e5a404e241f3/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 20:22:23,022 INFO L130 BoogieDeclarations]: Found specification of procedure producer_routine [2022-11-20 20:22:23,022 INFO L138 BoogieDeclarations]: Found implementation of procedure producer_routine [2022-11-20 20:22:23,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 20:22:23,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 20:22:23,023 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 20:22:23,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 20:22:23,023 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2022-11-20 20:22:23,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 20:22:23,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 20:22:23,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 20:22:23,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 20:22:23,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 20:22:23,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 20:22:23,025 INFO L130 BoogieDeclarations]: Found specification of procedure consumer_routine [2022-11-20 20:22:23,025 INFO L138 BoogieDeclarations]: Found implementation of procedure consumer_routine [2022-11-20 20:22:23,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 20:22:23,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 20:22:23,028 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 20:22:23,339 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 20:22:23,342 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 20:22:25,298 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 20:22:25,330 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 20:22:25,331 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2022-11-20 20:22:25,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:22:25 BoogieIcfgContainer [2022-11-20 20:22:25,352 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 20:22:25,367 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 20:22:25,368 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 20:22:25,375 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 20:22:25,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 08:22:20" (1/3) ... [2022-11-20 20:22:25,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@697d6341 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:22:25, skipping insertion in model container [2022-11-20 20:22:25,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:22:22" (2/3) ... [2022-11-20 20:22:25,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@697d6341 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:22:25, skipping insertion in model container [2022-11-20 20:22:25,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:22:25" (3/3) ... [2022-11-20 20:22:25,379 INFO L112 eAbstractionObserver]: Analyzing ICFG bounded_buffer.i [2022-11-20 20:22:25,394 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 20:22:25,407 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 20:22:25,407 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 75 error locations. [2022-11-20 20:22:25,407 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 20:22:25,748 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-20 20:22:25,826 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-20 20:22:25,863 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 924 places, 968 transitions, 1958 flow [2022-11-20 20:22:25,871 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 924 places, 968 transitions, 1958 flow [2022-11-20 20:22:25,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 924 places, 968 transitions, 1958 flow [2022-11-20 20:22:27,398 INFO L130 PetriNetUnfolder]: 109/2052 cut-off events. [2022-11-20 20:22:27,400 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-20 20:22:27,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2072 conditions, 2052 events. 109/2052 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 12886 event pairs, 0 based on Foata normal form. 0/1778 useless extension candidates. Maximal degree in co-relation 1072. Up to 16 conditions per place. [2022-11-20 20:22:27,800 INFO L119 LiptonReduction]: Number of co-enabled transitions 421734 [2022-11-20 20:23:28,373 WARN L233 SmtUtils]: Spent 5.49s on a formula simplification that was a NOOP. DAG size: 104 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-20 20:23:59,313 WARN L233 SmtUtils]: Spent 12.39s on a formula simplification that was a NOOP. DAG size: 119 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-20 20:24:10,140 WARN L233 SmtUtils]: Spent 10.82s on a formula simplification that was a NOOP. DAG size: 115 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-20 20:24:22,069 WARN L233 SmtUtils]: Spent 11.93s on a formula simplification that was a NOOP. DAG size: 119 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-20 20:24:31,778 WARN L233 SmtUtils]: Spent 9.71s on a formula simplification that was a NOOP. DAG size: 115 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-20 20:25:10,127 WARN L233 SmtUtils]: Spent 37.58s on a formula simplification that was a NOOP. DAG size: 161 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-20 20:25:28,877 WARN L233 SmtUtils]: Spent 18.75s on a formula simplification that was a NOOP. DAG size: 143 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-20 20:26:08,844 WARN L233 SmtUtils]: Spent 39.96s on a formula simplification that was a NOOP. DAG size: 161 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-20 20:26:29,895 WARN L233 SmtUtils]: Spent 21.05s on a formula simplification that was a NOOP. DAG size: 143 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-20 20:29:22,533 WARN L233 SmtUtils]: Spent 2.87m on a formula simplification. DAG size of input: 203 DAG size of output: 201 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-20 20:30:21,873 WARN L233 SmtUtils]: Spent 59.34s on a formula simplification that was a NOOP. DAG size: 195 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-20 20:33:17,047 WARN L233 SmtUtils]: Spent 2.92m on a formula simplification. DAG size of input: 203 DAG size of output: 201 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-20 20:34:24,581 WARN L233 SmtUtils]: Spent 1.13m on a formula simplification that was a NOOP. DAG size: 195 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-20 20:36:37,603 WARN L233 SmtUtils]: Spent 2.21m on a formula simplification that was a NOOP. DAG size: 264 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)