./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/mix036.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6a47aea7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0377c758-76a4-4256-a6b0-2b533c4eefbf/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0377c758-76a4-4256-a6b0-2b533c4eefbf/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_0377c758-76a4-4256-a6b0-2b533c4eefbf/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0377c758-76a4-4256-a6b0-2b533c4eefbf/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix036.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0377c758-76a4-4256-a6b0-2b533c4eefbf/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0377c758-76a4-4256-a6b0-2b533c4eefbf/bin/utaipan-fb15Y9Yzbl --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e3d3e405a2d3cb3ab8b02ed87788ef59412b7b81517118cc37c044f334087868 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:02:22,857 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:02:22,860 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:02:22,920 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:02:22,922 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:02:22,926 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:02:22,928 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:02:22,932 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:02:22,935 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:02:22,941 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:02:22,943 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:02:22,945 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:02:22,945 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:02:22,948 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:02:22,950 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:02:22,955 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:02:22,956 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:02:22,958 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:02:22,960 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:02:22,968 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:02:22,970 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:02:22,971 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:02:22,974 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:02:22,976 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:02:22,985 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:02:22,985 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:02:22,986 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:02:22,988 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:02:22,989 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:02:22,991 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:02:22,991 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:02:22,993 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:02:22,995 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:02:22,996 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:02:22,998 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:02:22,998 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:02:22,999 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:02:23,000 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:02:23,000 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:02:23,001 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:02:23,002 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:02:23,006 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0377c758-76a4-4256-a6b0-2b533c4eefbf/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:02:23,048 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:02:23,048 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:02:23,049 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:02:23,049 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:02:23,050 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:02:23,050 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:02:23,050 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:02:23,051 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:02:23,051 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:02:23,051 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:02:23,052 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:02:23,052 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:02:23,053 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:02:23,053 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:02:23,053 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:02:23,053 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:02:23,054 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:02:23,054 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:02:23,055 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:02:23,055 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:02:23,056 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:02:23,056 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:02:23,056 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:02:23,056 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:02:23,056 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:02:23,057 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:02:23,058 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:02:23,058 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:02:23,059 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:02:23,059 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:02:23,059 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:02:23,060 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:02:23,060 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:02:23,060 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:02:23,060 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:02:23,060 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:02:23,061 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:02:23,061 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:02:23,061 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:02:23,061 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:02:23,062 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:02:23,062 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_0377c758-76a4-4256-a6b0-2b533c4eefbf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0377c758-76a4-4256-a6b0-2b533c4eefbf/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3d3e405a2d3cb3ab8b02ed87788ef59412b7b81517118cc37c044f334087868 [2021-11-23 17:02:23,373 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:02:23,410 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:02:23,413 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:02:23,414 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:02:23,415 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:02:23,416 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0377c758-76a4-4256-a6b0-2b533c4eefbf/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/pthread-wmm/mix036.oepc.i [2021-11-23 17:02:23,503 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0377c758-76a4-4256-a6b0-2b533c4eefbf/bin/utaipan-fb15Y9Yzbl/data/3966ddfa3/cd054b228e614dda999e06f9d8538ef3/FLAGb5566afed [2021-11-23 17:02:24,088 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:02:24,089 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0377c758-76a4-4256-a6b0-2b533c4eefbf/sv-benchmarks/c/pthread-wmm/mix036.oepc.i [2021-11-23 17:02:24,117 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0377c758-76a4-4256-a6b0-2b533c4eefbf/bin/utaipan-fb15Y9Yzbl/data/3966ddfa3/cd054b228e614dda999e06f9d8538ef3/FLAGb5566afed [2021-11-23 17:02:24,317 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0377c758-76a4-4256-a6b0-2b533c4eefbf/bin/utaipan-fb15Y9Yzbl/data/3966ddfa3/cd054b228e614dda999e06f9d8538ef3 [2021-11-23 17:02:24,320 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:02:24,322 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:02:24,327 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:02:24,327 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:02:24,330 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:02:24,331 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:02:24" (1/1) ... [2021-11-23 17:02:24,332 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5881d706 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:02:24, skipping insertion in model container [2021-11-23 17:02:24,332 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:02:24" (1/1) ... [2021-11-23 17:02:24,340 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:02:24,406 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:02:24,619 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_0377c758-76a4-4256-a6b0-2b533c4eefbf/sv-benchmarks/c/pthread-wmm/mix036.oepc.i[945,958] [2021-11-23 17:02:24,846 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:02:24,855 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:02:24,868 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_0377c758-76a4-4256-a6b0-2b533c4eefbf/sv-benchmarks/c/pthread-wmm/mix036.oepc.i[945,958] [2021-11-23 17:02:24,918 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:02:24,972 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:02:24,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:02:24 WrapperNode [2021-11-23 17:02:24,973 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:02:24,974 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:02:24,975 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:02:24,975 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:02:24,983 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:02:24" (1/1) ... [2021-11-23 17:02:25,015 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:02:24" (1/1) ... [2021-11-23 17:02:25,051 INFO L137 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 195 [2021-11-23 17:02:25,051 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:02:25,052 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:02:25,052 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:02:25,052 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:02:25,060 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:02:24" (1/1) ... [2021-11-23 17:02:25,060 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:02:24" (1/1) ... [2021-11-23 17:02:25,079 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:02:24" (1/1) ... [2021-11-23 17:02:25,079 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:02:24" (1/1) ... [2021-11-23 17:02:25,105 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:02:24" (1/1) ... [2021-11-23 17:02:25,117 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:02:24" (1/1) ... [2021-11-23 17:02:25,121 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:02:24" (1/1) ... [2021-11-23 17:02:25,126 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:02:25,127 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:02:25,127 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:02:25,128 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:02:25,140 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:02:24" (1/1) ... [2021-11-23 17:02:25,151 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:02:25,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0377c758-76a4-4256-a6b0-2b533c4eefbf/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:02:25,172 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0377c758-76a4-4256-a6b0-2b533c4eefbf/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:02:25,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0377c758-76a4-4256-a6b0-2b533c4eefbf/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:02:25,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 17:02:25,217 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-23 17:02:25,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:02:25,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 17:02:25,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 17:02:25,217 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-11-23 17:02:25,217 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-11-23 17:02:25,218 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-11-23 17:02:25,218 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-11-23 17:02:25,218 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-11-23 17:02:25,218 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-11-23 17:02:25,218 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-11-23 17:02:25,218 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-11-23 17:02:25,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:02:25,219 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-23 17:02:25,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:02:25,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:02:25,221 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 17:02:25,347 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:02:25,348 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:02:26,103 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:02:26,225 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 17:02:26,230 INFO L158 Benchmark]: Toolchain (without parser) took 1906.56ms. Allocated memory is still 94.4MB. Free memory was 57.7MB in the beginning and 49.7MB in the end (delta: 8.0MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. [2021-11-23 17:02:26,230 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 94.4MB. Free memory was 75.6MB in the beginning and 75.5MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:02:26,231 INFO L158 Benchmark]: CACSL2BoogieTranslator took 646.93ms. Allocated memory is still 94.4MB. Free memory was 57.5MB in the beginning and 58.5MB in the end (delta: -957.4kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 17:02:26,232 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.78ms. Allocated memory is still 94.4MB. Free memory was 58.1MB in the beginning and 55.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:02:26,233 INFO L158 Benchmark]: Boogie Preprocessor took 74.79ms. Allocated memory is still 94.4MB. Free memory was 55.6MB in the beginning and 53.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:02:26,234 INFO L158 Benchmark]: RCFGBuilder took 1100.44ms. Allocated memory is still 94.4MB. Free memory was 53.1MB in the beginning and 49.7MB in the end (delta: 3.4MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. [2021-11-23 17:02:26,240 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 94.4MB. Free memory was 75.6MB in the beginning and 75.5MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 646.93ms. Allocated memory is still 94.4MB. Free memory was 57.5MB in the beginning and 58.5MB in the end (delta: -957.4kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.78ms. Allocated memory is still 94.4MB. Free memory was 58.1MB in the beginning and 55.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.79ms. Allocated memory is still 94.4MB. Free memory was 55.6MB in the beginning and 53.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1100.44ms. Allocated memory is still 94.4MB. Free memory was 53.1MB in the beginning and 49.7MB in the end (delta: 3.4MB). Peak memory consumption was 20.3MB. 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 17:02:26,297 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0377c758-76a4-4256-a6b0-2b533c4eefbf/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_0377c758-76a4-4256-a6b0-2b533c4eefbf/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0377c758-76a4-4256-a6b0-2b533c4eefbf/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_0377c758-76a4-4256-a6b0-2b533c4eefbf/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0377c758-76a4-4256-a6b0-2b533c4eefbf/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix036.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0377c758-76a4-4256-a6b0-2b533c4eefbf/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0377c758-76a4-4256-a6b0-2b533c4eefbf/bin/utaipan-fb15Y9Yzbl --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e3d3e405a2d3cb3ab8b02ed87788ef59412b7b81517118cc37c044f334087868 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:02:28,878 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:02:28,882 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:02:28,939 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:02:28,939 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:02:28,945 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:02:28,947 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:02:28,953 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:02:28,956 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:02:28,968 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:02:28,969 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:02:28,971 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:02:28,972 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:02:28,975 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:02:28,978 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:02:28,984 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:02:28,986 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:02:28,988 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:02:28,990 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:02:28,997 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:02:29,000 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:02:29,002 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:02:29,004 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:02:29,007 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:02:29,014 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:02:29,015 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:02:29,015 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:02:29,017 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:02:29,018 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:02:29,019 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:02:29,020 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:02:29,021 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:02:29,023 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:02:29,024 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:02:29,025 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:02:29,026 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:02:29,027 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:02:29,027 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:02:29,027 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:02:29,029 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:02:29,030 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:02:29,031 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0377c758-76a4-4256-a6b0-2b533c4eefbf/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:02:29,074 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:02:29,075 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:02:29,076 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:02:29,076 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:02:29,077 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:02:29,077 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:02:29,077 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:02:29,077 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:02:29,078 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:02:29,078 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:02:29,079 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:02:29,079 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:02:29,081 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:02:29,081 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:02:29,081 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:02:29,082 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:02:29,082 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:02:29,082 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:02:29,082 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:02:29,082 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:02:29,083 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:02:29,083 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:02:29,083 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:02:29,083 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:02:29,084 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:02:29,084 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:02:29,084 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:02:29,084 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:02:29,085 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:02:29,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:02:29,085 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:02:29,085 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:02:29,086 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:02:29,086 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:02:29,086 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:02:29,086 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:02:29,087 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:02:29,087 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:02:29,087 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_0377c758-76a4-4256-a6b0-2b533c4eefbf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0377c758-76a4-4256-a6b0-2b533c4eefbf/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3d3e405a2d3cb3ab8b02ed87788ef59412b7b81517118cc37c044f334087868 [2021-11-23 17:02:29,546 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:02:29,581 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:02:29,583 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:02:29,585 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:02:29,586 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:02:29,588 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0377c758-76a4-4256-a6b0-2b533c4eefbf/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/pthread-wmm/mix036.oepc.i [2021-11-23 17:02:29,671 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0377c758-76a4-4256-a6b0-2b533c4eefbf/bin/utaipan-fb15Y9Yzbl/data/70ed954e6/05dbb45132b34cd080b5a9b434311e9d/FLAG161e600b9 [2021-11-23 17:02:30,376 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:02:30,378 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0377c758-76a4-4256-a6b0-2b533c4eefbf/sv-benchmarks/c/pthread-wmm/mix036.oepc.i [2021-11-23 17:02:30,400 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0377c758-76a4-4256-a6b0-2b533c4eefbf/bin/utaipan-fb15Y9Yzbl/data/70ed954e6/05dbb45132b34cd080b5a9b434311e9d/FLAG161e600b9 [2021-11-23 17:02:30,609 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0377c758-76a4-4256-a6b0-2b533c4eefbf/bin/utaipan-fb15Y9Yzbl/data/70ed954e6/05dbb45132b34cd080b5a9b434311e9d [2021-11-23 17:02:30,613 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:02:30,615 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:02:30,619 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:02:30,619 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:02:30,623 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:02:30,625 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:02:30" (1/1) ... [2021-11-23 17:02:30,627 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5121ed29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:02:30, skipping insertion in model container [2021-11-23 17:02:30,627 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:02:30" (1/1) ... [2021-11-23 17:02:30,635 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:02:30,711 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:02:30,904 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_0377c758-76a4-4256-a6b0-2b533c4eefbf/sv-benchmarks/c/pthread-wmm/mix036.oepc.i[945,958] [2021-11-23 17:02:31,207 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:02:31,235 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:02:31,254 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_0377c758-76a4-4256-a6b0-2b533c4eefbf/sv-benchmarks/c/pthread-wmm/mix036.oepc.i[945,958] [2021-11-23 17:02:31,374 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:02:31,430 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:02:31,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:02:31 WrapperNode [2021-11-23 17:02:31,430 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:02:31,431 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:02:31,432 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:02:31,432 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:02:31,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:02:31" (1/1) ... [2021-11-23 17:02:31,480 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:02:31" (1/1) ... [2021-11-23 17:02:31,536 INFO L137 Inliner]: procedures = 180, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 196 [2021-11-23 17:02:31,536 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:02:31,537 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:02:31,538 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:02:31,538 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:02:31,547 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:02:31" (1/1) ... [2021-11-23 17:02:31,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:02:31" (1/1) ... [2021-11-23 17:02:31,563 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:02:31" (1/1) ... [2021-11-23 17:02:31,563 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:02:31" (1/1) ... [2021-11-23 17:02:31,593 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:02:31" (1/1) ... [2021-11-23 17:02:31,611 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:02:31" (1/1) ... [2021-11-23 17:02:31,615 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:02:31" (1/1) ... [2021-11-23 17:02:31,621 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:02:31,638 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:02:31,638 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:02:31,638 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:02:31,639 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:02:31" (1/1) ... [2021-11-23 17:02:31,650 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:02:31,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0377c758-76a4-4256-a6b0-2b533c4eefbf/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:02:31,675 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0377c758-76a4-4256-a6b0-2b533c4eefbf/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:02:31,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0377c758-76a4-4256-a6b0-2b533c4eefbf/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:02:31,729 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-23 17:02:31,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:02:31,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 17:02:31,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 17:02:31,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 17:02:31,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:02:31,731 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-11-23 17:02:31,731 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-11-23 17:02:31,731 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-11-23 17:02:31,731 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-11-23 17:02:31,731 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-11-23 17:02:31,732 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-11-23 17:02:31,732 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-11-23 17:02:31,732 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-11-23 17:02:31,732 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-23 17:02:31,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:02:31,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:02:31,735 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 17:02:32,030 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:02:32,036 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:02:32,693 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:02:32,805 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 17:02:32,810 INFO L158 Benchmark]: Toolchain (without parser) took 2193.41ms. Allocated memory was 62.9MB in the beginning and 86.0MB in the end (delta: 23.1MB). Free memory was 41.2MB in the beginning and 63.4MB in the end (delta: -22.1MB). Peak memory consumption was 29.9MB. Max. memory is 16.1GB. [2021-11-23 17:02:32,810 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 62.9MB. Free memory is still 44.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:02:32,811 INFO L158 Benchmark]: CACSL2BoogieTranslator took 811.83ms. Allocated memory is still 62.9MB. Free memory was 41.0MB in the beginning and 32.0MB in the end (delta: 9.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 17:02:32,812 INFO L158 Benchmark]: Boogie Procedure Inliner took 105.05ms. Allocated memory is still 62.9MB. Free memory was 32.0MB in the beginning and 29.2MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:02:32,812 INFO L158 Benchmark]: Boogie Preprocessor took 83.58ms. Allocated memory is still 62.9MB. Free memory was 29.2MB in the beginning and 26.3MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:02:32,813 INFO L158 Benchmark]: RCFGBuilder took 1169.74ms. Allocated memory was 62.9MB in the beginning and 86.0MB in the end (delta: 23.1MB). Free memory was 26.3MB in the beginning and 63.4MB in the end (delta: -37.0MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. [2021-11-23 17:02:32,816 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 62.9MB. Free memory is still 44.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 811.83ms. Allocated memory is still 62.9MB. Free memory was 41.0MB in the beginning and 32.0MB in the end (delta: 9.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 105.05ms. Allocated memory is still 62.9MB. Free memory was 32.0MB in the beginning and 29.2MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 83.58ms. Allocated memory is still 62.9MB. Free memory was 29.2MB in the beginning and 26.3MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1169.74ms. Allocated memory was 62.9MB in the beginning and 86.0MB in the end (delta: 23.1MB). Free memory was 26.3MB in the beginning and 63.4MB in the end (delta: -37.0MB). Peak memory consumption was 18.0MB. 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 17:02:32,853 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0377c758-76a4-4256-a6b0-2b533c4eefbf/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