./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/thin002_rmo.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_6c40f78c-5e05-4732-8843-461f601391bc/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c40f78c-5e05-4732-8843-461f601391bc/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_6c40f78c-5e05-4732-8843-461f601391bc/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c40f78c-5e05-4732-8843-461f601391bc/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/thin002_rmo.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c40f78c-5e05-4732-8843-461f601391bc/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_6c40f78c-5e05-4732-8843-461f601391bc/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 f0d8ae33a1a7c98578096fc4895533f629cc4062ad641b886abfeea14ddb85d4 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:08:29,708 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:08:29,712 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:08:29,788 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:08:29,788 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:08:29,794 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:08:29,796 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:08:29,801 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:08:29,804 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:08:29,813 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:08:29,815 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:08:29,817 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:08:29,817 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:08:29,821 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:08:29,824 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:08:29,830 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:08:29,831 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:08:29,833 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:08:29,835 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:08:29,844 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:08:29,846 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:08:29,848 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:08:29,852 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:08:29,853 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:08:29,857 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:08:29,857 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:08:29,858 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:08:29,860 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:08:29,861 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:08:29,862 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:08:29,863 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:08:29,864 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:08:29,866 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:08:29,867 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:08:29,869 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:08:29,869 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:08:29,870 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:08:29,870 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:08:29,871 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:08:29,872 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:08:29,873 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:08:29,874 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c40f78c-5e05-4732-8843-461f601391bc/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:08:29,920 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:08:29,920 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:08:29,921 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:08:29,921 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:08:29,922 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:08:29,923 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:08:29,923 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:08:29,923 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:08:29,923 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:08:29,923 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:08:29,924 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:08:29,925 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:08:29,925 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:08:29,925 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:08:29,925 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:08:29,926 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:08:29,926 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:08:29,926 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:08:29,928 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:08:29,928 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:08:29,928 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:08:29,928 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:08:29,929 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:08:29,929 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:08:29,929 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:08:29,929 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:08:29,932 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:08:29,932 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:08:29,932 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:08:29,932 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:08:29,933 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:08:29,933 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:08:29,933 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:08:29,934 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:08:29,934 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:08:29,934 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:08:29,934 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:08:29,935 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:08:29,935 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:08:29,935 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:08:29,935 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:08:29,936 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_6c40f78c-5e05-4732-8843-461f601391bc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c40f78c-5e05-4732-8843-461f601391bc/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f0d8ae33a1a7c98578096fc4895533f629cc4062ad641b886abfeea14ddb85d4 [2021-11-23 17:08:30,243 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:08:30,272 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:08:30,275 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:08:30,276 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:08:30,277 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:08:30,278 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c40f78c-5e05-4732-8843-461f601391bc/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/pthread-wmm/thin002_rmo.i [2021-11-23 17:08:30,355 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c40f78c-5e05-4732-8843-461f601391bc/bin/utaipan-fb15Y9Yzbl/data/35f4ab414/e3ed9688bd124640a46aeadbbe7b3546/FLAGd606159d3 [2021-11-23 17:08:31,078 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:08:31,079 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c40f78c-5e05-4732-8843-461f601391bc/sv-benchmarks/c/pthread-wmm/thin002_rmo.i [2021-11-23 17:08:31,115 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c40f78c-5e05-4732-8843-461f601391bc/bin/utaipan-fb15Y9Yzbl/data/35f4ab414/e3ed9688bd124640a46aeadbbe7b3546/FLAGd606159d3 [2021-11-23 17:08:31,254 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c40f78c-5e05-4732-8843-461f601391bc/bin/utaipan-fb15Y9Yzbl/data/35f4ab414/e3ed9688bd124640a46aeadbbe7b3546 [2021-11-23 17:08:31,262 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:08:31,263 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:08:31,267 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:08:31,267 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:08:31,270 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:08:31,271 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:08:31" (1/1) ... [2021-11-23 17:08:31,274 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ba46356 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:31, skipping insertion in model container [2021-11-23 17:08:31,275 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:08:31" (1/1) ... [2021-11-23 17:08:31,283 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:08:31,363 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:08:31,627 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_6c40f78c-5e05-4732-8843-461f601391bc/sv-benchmarks/c/pthread-wmm/thin002_rmo.i[988,1001] [2021-11-23 17:08:31,881 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:08:31,893 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:08:31,910 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_6c40f78c-5e05-4732-8843-461f601391bc/sv-benchmarks/c/pthread-wmm/thin002_rmo.i[988,1001] [2021-11-23 17:08:31,998 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:08:32,073 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:08:32,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:32 WrapperNode [2021-11-23 17:08:32,074 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:08:32,075 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:08:32,076 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:08:32,076 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:08:32,086 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:32" (1/1) ... [2021-11-23 17:08:32,138 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:32" (1/1) ... [2021-11-23 17:08:32,177 INFO L137 Inliner]: procedures = 177, calls = 80, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 170 [2021-11-23 17:08:32,186 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:08:32,187 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:08:32,187 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:08:32,187 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:08:32,198 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:32" (1/1) ... [2021-11-23 17:08:32,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:32" (1/1) ... [2021-11-23 17:08:32,208 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:32" (1/1) ... [2021-11-23 17:08:32,220 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:32" (1/1) ... [2021-11-23 17:08:32,250 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:32" (1/1) ... [2021-11-23 17:08:32,254 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:32" (1/1) ... [2021-11-23 17:08:32,259 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:32" (1/1) ... [2021-11-23 17:08:32,273 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:08:32,274 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:08:32,274 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:08:32,274 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:08:32,278 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:32" (1/1) ... [2021-11-23 17:08:32,289 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:08:32,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c40f78c-5e05-4732-8843-461f601391bc/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:08:32,321 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c40f78c-5e05-4732-8843-461f601391bc/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:08:32,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c40f78c-5e05-4732-8843-461f601391bc/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:08:32,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 17:08:32,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 17:08:32,383 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-23 17:08:32,383 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:08:32,383 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 17:08:32,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 17:08:32,384 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-11-23 17:08:32,384 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-11-23 17:08:32,384 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-11-23 17:08:32,385 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-11-23 17:08:32,385 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-11-23 17:08:32,385 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-11-23 17:08:32,385 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-11-23 17:08:32,385 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-11-23 17:08:32,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:08:32,386 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-23 17:08:32,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:08:32,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:08:32,388 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 17:08:32,633 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:08:32,635 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:08:33,343 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:08:33,524 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 17:08:33,530 INFO L158 Benchmark]: Toolchain (without parser) took 2264.68ms. Allocated memory was 92.3MB in the beginning and 127.9MB in the end (delta: 35.7MB). Free memory was 54.0MB in the beginning and 55.1MB in the end (delta: -1.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2021-11-23 17:08:33,534 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 92.3MB. Free memory is still 72.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:08:33,536 INFO L158 Benchmark]: CACSL2BoogieTranslator took 807.08ms. Allocated memory was 92.3MB in the beginning and 127.9MB in the end (delta: 35.7MB). Free memory was 53.9MB in the beginning and 91.1MB in the end (delta: -37.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 17:08:33,537 INFO L158 Benchmark]: Boogie Procedure Inliner took 110.58ms. Allocated memory is still 127.9MB. Free memory was 91.1MB in the beginning and 88.6MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 17:08:33,538 INFO L158 Benchmark]: Boogie Preprocessor took 86.66ms. Allocated memory is still 127.9MB. Free memory was 88.6MB in the beginning and 86.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:08:33,542 INFO L158 Benchmark]: RCFGBuilder took 1253.14ms. Allocated memory is still 127.9MB. Free memory was 86.1MB in the beginning and 55.1MB in the end (delta: 31.1MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2021-11-23 17:08:33,548 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 92.3MB. Free memory is still 72.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 807.08ms. Allocated memory was 92.3MB in the beginning and 127.9MB in the end (delta: 35.7MB). Free memory was 53.9MB in the beginning and 91.1MB in the end (delta: -37.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 110.58ms. Allocated memory is still 127.9MB. Free memory was 91.1MB in the beginning and 88.6MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 86.66ms. Allocated memory is still 127.9MB. Free memory was 88.6MB in the beginning and 86.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1253.14ms. Allocated memory is still 127.9MB. Free memory was 86.1MB in the beginning and 55.1MB in the end (delta: 31.1MB). Peak memory consumption was 31.5MB. 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 17:08:33,597 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c40f78c-5e05-4732-8843-461f601391bc/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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_6c40f78c-5e05-4732-8843-461f601391bc/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c40f78c-5e05-4732-8843-461f601391bc/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_6c40f78c-5e05-4732-8843-461f601391bc/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c40f78c-5e05-4732-8843-461f601391bc/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/thin002_rmo.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c40f78c-5e05-4732-8843-461f601391bc/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_6c40f78c-5e05-4732-8843-461f601391bc/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 f0d8ae33a1a7c98578096fc4895533f629cc4062ad641b886abfeea14ddb85d4 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:08:36,586 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:08:36,589 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:08:36,635 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:08:36,636 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:08:36,641 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:08:36,645 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:08:36,655 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:08:36,659 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:08:36,669 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:08:36,670 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:08:36,672 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:08:36,672 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:08:36,674 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:08:36,676 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:08:36,677 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:08:36,679 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:08:36,680 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:08:36,686 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:08:36,702 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:08:36,705 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:08:36,708 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:08:36,715 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:08:36,717 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:08:36,728 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:08:36,728 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:08:36,729 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:08:36,731 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:08:36,732 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:08:36,733 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:08:36,734 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:08:36,735 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:08:36,737 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:08:36,739 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:08:36,740 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:08:36,741 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:08:36,742 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:08:36,742 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:08:36,758 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:08:36,760 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:08:36,761 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:08:36,768 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c40f78c-5e05-4732-8843-461f601391bc/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:08:36,827 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:08:36,828 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:08:36,829 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:08:36,829 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:08:36,830 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:08:36,830 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:08:36,830 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:08:36,831 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:08:36,831 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:08:36,831 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:08:36,833 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:08:36,833 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:08:36,835 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:08:36,835 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:08:36,835 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:08:36,836 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:08:36,836 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:08:36,836 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:08:36,836 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:08:36,837 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:08:36,837 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:08:36,837 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:08:36,837 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:08:36,838 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:08:36,838 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:08:36,838 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:08:36,838 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:08:36,839 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:08:36,839 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:08:36,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:08:36,839 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:08:36,840 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:08:36,840 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:08:36,841 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:08:36,841 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:08:36,841 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:08:36,841 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:08:36,842 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:08:36,842 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_6c40f78c-5e05-4732-8843-461f601391bc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c40f78c-5e05-4732-8843-461f601391bc/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f0d8ae33a1a7c98578096fc4895533f629cc4062ad641b886abfeea14ddb85d4 [2021-11-23 17:08:37,392 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:08:37,428 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:08:37,432 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:08:37,434 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:08:37,434 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:08:37,437 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c40f78c-5e05-4732-8843-461f601391bc/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/pthread-wmm/thin002_rmo.i [2021-11-23 17:08:37,545 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c40f78c-5e05-4732-8843-461f601391bc/bin/utaipan-fb15Y9Yzbl/data/442574588/30d50c66f7dc4c14b7dc3fae58f3ae1c/FLAGbbab1278a [2021-11-23 17:08:38,353 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:08:38,354 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c40f78c-5e05-4732-8843-461f601391bc/sv-benchmarks/c/pthread-wmm/thin002_rmo.i [2021-11-23 17:08:38,385 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c40f78c-5e05-4732-8843-461f601391bc/bin/utaipan-fb15Y9Yzbl/data/442574588/30d50c66f7dc4c14b7dc3fae58f3ae1c/FLAGbbab1278a [2021-11-23 17:08:38,555 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c40f78c-5e05-4732-8843-461f601391bc/bin/utaipan-fb15Y9Yzbl/data/442574588/30d50c66f7dc4c14b7dc3fae58f3ae1c [2021-11-23 17:08:38,558 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:08:38,560 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:08:38,562 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:08:38,562 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:08:38,567 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:08:38,568 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:08:38" (1/1) ... [2021-11-23 17:08:38,571 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d77fa5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:38, skipping insertion in model container [2021-11-23 17:08:38,571 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:08:38" (1/1) ... [2021-11-23 17:08:38,582 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:08:38,655 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:08:38,922 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_6c40f78c-5e05-4732-8843-461f601391bc/sv-benchmarks/c/pthread-wmm/thin002_rmo.i[988,1001] [2021-11-23 17:08:39,174 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:08:39,191 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:08:39,206 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_6c40f78c-5e05-4732-8843-461f601391bc/sv-benchmarks/c/pthread-wmm/thin002_rmo.i[988,1001] [2021-11-23 17:08:39,313 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:08:39,390 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:08:39,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:39 WrapperNode [2021-11-23 17:08:39,391 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:08:39,392 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:08:39,392 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:08:39,392 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:08:39,401 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:39" (1/1) ... [2021-11-23 17:08:39,447 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:39" (1/1) ... [2021-11-23 17:08:39,491 INFO L137 Inliner]: procedures = 181, calls = 80, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 171 [2021-11-23 17:08:39,491 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:08:39,492 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:08:39,493 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:08:39,493 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:08:39,502 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:39" (1/1) ... [2021-11-23 17:08:39,502 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:39" (1/1) ... [2021-11-23 17:08:39,527 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:39" (1/1) ... [2021-11-23 17:08:39,528 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:39" (1/1) ... [2021-11-23 17:08:39,567 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:39" (1/1) ... [2021-11-23 17:08:39,572 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:39" (1/1) ... [2021-11-23 17:08:39,577 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:39" (1/1) ... [2021-11-23 17:08:39,584 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:08:39,585 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:08:39,585 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:08:39,585 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:08:39,586 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:39" (1/1) ... [2021-11-23 17:08:39,595 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:08:39,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c40f78c-5e05-4732-8843-461f601391bc/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:08:39,636 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c40f78c-5e05-4732-8843-461f601391bc/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:08:39,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c40f78c-5e05-4732-8843-461f601391bc/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:08:39,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 17:08:39,690 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-23 17:08:39,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:08:39,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 17:08:39,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 17:08:39,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 17:08:39,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:08:39,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-23 17:08:39,691 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-11-23 17:08:39,691 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-11-23 17:08:39,691 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-11-23 17:08:39,691 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-11-23 17:08:39,691 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-11-23 17:08:39,692 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-11-23 17:08:39,692 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-11-23 17:08:39,692 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-11-23 17:08:39,692 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-23 17:08:39,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:08:39,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:08:39,694 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 17:08:39,923 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:08:39,925 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:08:40,681 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:08:40,828 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 17:08:40,837 INFO L158 Benchmark]: Toolchain (without parser) took 2275.22ms. Allocated memory was 60.8MB in the beginning and 79.7MB in the end (delta: 18.9MB). Free memory was 37.1MB in the beginning and 46.0MB in the end (delta: -8.9MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. [2021-11-23 17:08:40,839 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 60.8MB. Free memory was 41.1MB in the beginning and 41.1MB in the end (delta: 42.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:08:40,841 INFO L158 Benchmark]: CACSL2BoogieTranslator took 829.45ms. Allocated memory is still 60.8MB. Free memory was 36.9MB in the beginning and 29.8MB in the end (delta: 7.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 17:08:40,842 INFO L158 Benchmark]: Boogie Procedure Inliner took 99.57ms. Allocated memory is still 60.8MB. Free memory was 29.6MB in the beginning and 27.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:08:40,843 INFO L158 Benchmark]: Boogie Preprocessor took 92.01ms. Allocated memory is still 60.8MB. Free memory was 27.0MB in the beginning and 41.6MB in the end (delta: -14.6MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2021-11-23 17:08:40,845 INFO L158 Benchmark]: RCFGBuilder took 1248.81ms. Allocated memory was 60.8MB in the beginning and 79.7MB in the end (delta: 18.9MB). Free memory was 41.6MB in the beginning and 46.0MB in the end (delta: -4.4MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. [2021-11-23 17:08:40,857 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 60.8MB. Free memory was 41.1MB in the beginning and 41.1MB in the end (delta: 42.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 829.45ms. Allocated memory is still 60.8MB. Free memory was 36.9MB in the beginning and 29.8MB in the end (delta: 7.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 99.57ms. Allocated memory is still 60.8MB. Free memory was 29.6MB in the beginning and 27.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 92.01ms. Allocated memory is still 60.8MB. Free memory was 27.0MB in the beginning and 41.6MB in the end (delta: -14.6MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. * RCFGBuilder took 1248.81ms. Allocated memory was 60.8MB in the beginning and 79.7MB in the end (delta: 18.9MB). Free memory was 41.6MB in the beginning and 46.0MB in the end (delta: -4.4MB). Peak memory consumption was 21.2MB. 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 17:08:40,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c40f78c-5e05-4732-8843-461f601391bc/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