./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/mix016.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_8ed48ddf-c5dc-4e33-93dc-518533502da2/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ed48ddf-c5dc-4e33-93dc-518533502da2/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_8ed48ddf-c5dc-4e33-93dc-518533502da2/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ed48ddf-c5dc-4e33-93dc-518533502da2/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix016.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ed48ddf-c5dc-4e33-93dc-518533502da2/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_8ed48ddf-c5dc-4e33-93dc-518533502da2/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 19a854e56177f3540c5827f949efdd83ec94b87c6cd0ec772115563b836c4c8b --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:19:40,571 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:19:40,576 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:19:40,622 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:19:40,623 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:19:40,625 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:19:40,628 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:19:40,631 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:19:40,634 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:19:40,636 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:19:40,638 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:19:40,640 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:19:40,641 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:19:40,643 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:19:40,646 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:19:40,648 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:19:40,650 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:19:40,652 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:19:40,655 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:19:40,659 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:19:40,662 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:19:40,664 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:19:40,666 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:19:40,668 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:19:40,674 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:19:40,674 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:19:40,675 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:19:40,677 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:19:40,678 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:19:40,680 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:19:40,680 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:19:40,682 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:19:40,683 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:19:40,685 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:19:40,687 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:19:40,688 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:19:40,689 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:19:40,692 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:19:40,693 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:19:40,695 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:19:40,698 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:19:40,700 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ed48ddf-c5dc-4e33-93dc-518533502da2/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:19:40,766 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:19:40,769 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:19:40,782 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:19:40,782 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:19:40,783 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:19:40,784 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:19:40,784 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:19:40,785 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:19:40,785 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:19:40,785 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:19:40,787 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:19:40,787 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:19:40,787 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:19:40,788 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:19:40,788 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:19:40,789 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:19:40,789 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:19:40,789 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:19:40,790 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:19:40,791 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:19:40,791 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:19:40,791 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:19:40,792 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:19:40,792 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:19:40,792 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:19:40,793 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:19:40,795 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:19:40,795 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:19:40,796 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:19:40,796 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:19:40,796 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:19:40,797 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:19:40,797 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:19:40,798 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:19:40,798 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:19:40,798 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:19:40,799 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:19:40,799 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:19:40,799 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:19:40,800 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:19:40,800 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:19:40,800 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_8ed48ddf-c5dc-4e33-93dc-518533502da2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ed48ddf-c5dc-4e33-93dc-518533502da2/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 19a854e56177f3540c5827f949efdd83ec94b87c6cd0ec772115563b836c4c8b [2021-11-23 17:19:41,239 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:19:41,289 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:19:41,292 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:19:41,294 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:19:41,295 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:19:41,297 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ed48ddf-c5dc-4e33-93dc-518533502da2/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/pthread-wmm/mix016.oepc.i [2021-11-23 17:19:41,384 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ed48ddf-c5dc-4e33-93dc-518533502da2/bin/utaipan-fb15Y9Yzbl/data/92a2343a8/e029143b15cb451ab8bffefc17c5ca22/FLAGa0f9de518 [2021-11-23 17:19:42,111 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:19:42,112 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ed48ddf-c5dc-4e33-93dc-518533502da2/sv-benchmarks/c/pthread-wmm/mix016.oepc.i [2021-11-23 17:19:42,127 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ed48ddf-c5dc-4e33-93dc-518533502da2/bin/utaipan-fb15Y9Yzbl/data/92a2343a8/e029143b15cb451ab8bffefc17c5ca22/FLAGa0f9de518 [2021-11-23 17:19:42,370 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ed48ddf-c5dc-4e33-93dc-518533502da2/bin/utaipan-fb15Y9Yzbl/data/92a2343a8/e029143b15cb451ab8bffefc17c5ca22 [2021-11-23 17:19:42,373 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:19:42,374 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:19:42,376 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:19:42,377 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:19:42,381 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:19:42,382 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:19:42" (1/1) ... [2021-11-23 17:19:42,383 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c170eea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:42, skipping insertion in model container [2021-11-23 17:19:42,383 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:19:42" (1/1) ... [2021-11-23 17:19:42,391 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:19:42,436 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:19:42,661 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_8ed48ddf-c5dc-4e33-93dc-518533502da2/sv-benchmarks/c/pthread-wmm/mix016.oepc.i[945,958] [2021-11-23 17:19:42,987 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:19:42,996 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:19:43,009 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_8ed48ddf-c5dc-4e33-93dc-518533502da2/sv-benchmarks/c/pthread-wmm/mix016.oepc.i[945,958] [2021-11-23 17:19:43,081 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:19:43,125 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:19:43,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:43 WrapperNode [2021-11-23 17:19:43,126 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:19:43,128 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:19:43,128 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:19:43,128 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:19:43,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:43" (1/1) ... [2021-11-23 17:19:43,179 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:43" (1/1) ... [2021-11-23 17:19:43,223 INFO L137 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 178 [2021-11-23 17:19:43,224 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:19:43,225 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:19:43,226 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:19:43,226 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:19:43,236 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:43" (1/1) ... [2021-11-23 17:19:43,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:43" (1/1) ... [2021-11-23 17:19:43,254 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:43" (1/1) ... [2021-11-23 17:19:43,268 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:43" (1/1) ... [2021-11-23 17:19:43,279 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:43" (1/1) ... [2021-11-23 17:19:43,283 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:43" (1/1) ... [2021-11-23 17:19:43,287 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:43" (1/1) ... [2021-11-23 17:19:43,308 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:19:43,309 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:19:43,310 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:19:43,310 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:19:43,322 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:43" (1/1) ... [2021-11-23 17:19:43,331 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:19:43,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ed48ddf-c5dc-4e33-93dc-518533502da2/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:19:43,360 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ed48ddf-c5dc-4e33-93dc-518533502da2/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:19:43,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ed48ddf-c5dc-4e33-93dc-518533502da2/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:19:43,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 17:19:43,423 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-23 17:19:43,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:19:43,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 17:19:43,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 17:19:43,424 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-11-23 17:19:43,424 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-11-23 17:19:43,425 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-11-23 17:19:43,425 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-11-23 17:19:43,425 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-11-23 17:19:43,425 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-11-23 17:19:43,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:19:43,426 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-23 17:19:43,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:19:43,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:19:43,429 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 17:19:43,658 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:19:43,660 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:19:44,314 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:19:44,494 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 17:19:44,498 INFO L158 Benchmark]: Toolchain (without parser) took 2122.99ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 72.9MB in the beginning and 52.3MB in the end (delta: 20.6MB). Peak memory consumption was 41.4MB. Max. memory is 16.1GB. [2021-11-23 17:19:44,499 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 107.0MB. Free memory was 61.6MB in the beginning and 61.5MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:19:44,500 INFO L158 Benchmark]: CACSL2BoogieTranslator took 750.27ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 72.6MB in the beginning and 90.6MB in the end (delta: -18.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 17:19:44,501 INFO L158 Benchmark]: Boogie Procedure Inliner took 96.97ms. Allocated memory is still 130.0MB. Free memory was 90.6MB in the beginning and 88.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:19:44,502 INFO L158 Benchmark]: Boogie Preprocessor took 83.35ms. Allocated memory is still 130.0MB. Free memory was 88.0MB in the beginning and 85.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:19:44,505 INFO L158 Benchmark]: RCFGBuilder took 1187.03ms. Allocated memory is still 130.0MB. Free memory was 85.9MB in the beginning and 52.3MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2021-11-23 17:19:44,508 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 107.0MB. Free memory was 61.6MB in the beginning and 61.5MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 750.27ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 72.6MB in the beginning and 90.6MB in the end (delta: -18.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 96.97ms. Allocated memory is still 130.0MB. Free memory was 90.6MB in the beginning and 88.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 83.35ms. Allocated memory is still 130.0MB. Free memory was 88.0MB in the beginning and 85.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1187.03ms. Allocated memory is still 130.0MB. Free memory was 85.9MB in the beginning and 52.3MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. 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 17:19:44,556 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ed48ddf-c5dc-4e33-93dc-518533502da2/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_8ed48ddf-c5dc-4e33-93dc-518533502da2/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ed48ddf-c5dc-4e33-93dc-518533502da2/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_8ed48ddf-c5dc-4e33-93dc-518533502da2/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ed48ddf-c5dc-4e33-93dc-518533502da2/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix016.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ed48ddf-c5dc-4e33-93dc-518533502da2/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_8ed48ddf-c5dc-4e33-93dc-518533502da2/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 19a854e56177f3540c5827f949efdd83ec94b87c6cd0ec772115563b836c4c8b --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:19:46,888 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:19:46,890 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:19:46,939 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:19:46,940 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:19:46,944 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:19:46,947 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:19:46,955 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:19:46,959 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:19:46,966 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:19:46,967 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:19:46,968 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:19:46,969 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:19:46,970 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:19:46,971 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:19:46,973 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:19:46,974 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:19:46,975 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:19:46,977 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:19:46,991 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:19:46,992 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:19:46,999 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:19:47,000 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:19:47,002 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:19:47,009 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:19:47,013 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:19:47,014 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:19:47,015 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:19:47,017 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:19:47,018 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:19:47,019 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:19:47,020 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:19:47,022 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:19:47,023 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:19:47,025 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:19:47,025 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:19:47,026 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:19:47,026 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:19:47,027 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:19:47,029 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:19:47,030 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:19:47,030 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ed48ddf-c5dc-4e33-93dc-518533502da2/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:19:47,070 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:19:47,070 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:19:47,070 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:19:47,070 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:19:47,071 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:19:47,071 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:19:47,071 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:19:47,072 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:19:47,072 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:19:47,072 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:19:47,072 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:19:47,072 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:19:47,073 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:19:47,073 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:19:47,073 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:19:47,074 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:19:47,074 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:19:47,074 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:19:47,074 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:19:47,074 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:19:47,074 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:19:47,074 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:19:47,075 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:19:47,075 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:19:47,075 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:19:47,075 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:19:47,075 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:19:47,075 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:19:47,075 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:19:47,075 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:19:47,076 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:19:47,076 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:19:47,076 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:19:47,076 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:19:47,076 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:19:47,076 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:19:47,076 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:19:47,077 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:19:47,077 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_8ed48ddf-c5dc-4e33-93dc-518533502da2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ed48ddf-c5dc-4e33-93dc-518533502da2/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 19a854e56177f3540c5827f949efdd83ec94b87c6cd0ec772115563b836c4c8b [2021-11-23 17:19:47,498 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:19:47,534 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:19:47,537 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:19:47,539 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:19:47,539 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:19:47,541 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ed48ddf-c5dc-4e33-93dc-518533502da2/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/pthread-wmm/mix016.oepc.i [2021-11-23 17:19:47,618 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ed48ddf-c5dc-4e33-93dc-518533502da2/bin/utaipan-fb15Y9Yzbl/data/1ba005477/4d1d13d1927444d9ba926fb66f177a1b/FLAGf37ab2fac [2021-11-23 17:19:48,205 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:19:48,206 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ed48ddf-c5dc-4e33-93dc-518533502da2/sv-benchmarks/c/pthread-wmm/mix016.oepc.i [2021-11-23 17:19:48,225 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ed48ddf-c5dc-4e33-93dc-518533502da2/bin/utaipan-fb15Y9Yzbl/data/1ba005477/4d1d13d1927444d9ba926fb66f177a1b/FLAGf37ab2fac [2021-11-23 17:19:48,469 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ed48ddf-c5dc-4e33-93dc-518533502da2/bin/utaipan-fb15Y9Yzbl/data/1ba005477/4d1d13d1927444d9ba926fb66f177a1b [2021-11-23 17:19:48,471 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:19:48,473 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:19:48,477 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:19:48,477 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:19:48,481 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:19:48,483 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:19:48" (1/1) ... [2021-11-23 17:19:48,485 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57f3735a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:48, skipping insertion in model container [2021-11-23 17:19:48,486 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:19:48" (1/1) ... [2021-11-23 17:19:48,493 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:19:48,564 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:19:48,732 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_8ed48ddf-c5dc-4e33-93dc-518533502da2/sv-benchmarks/c/pthread-wmm/mix016.oepc.i[945,958] [2021-11-23 17:19:49,065 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:19:49,089 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:19:49,108 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_8ed48ddf-c5dc-4e33-93dc-518533502da2/sv-benchmarks/c/pthread-wmm/mix016.oepc.i[945,958] [2021-11-23 17:19:49,181 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:19:49,227 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:19:49,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:49 WrapperNode [2021-11-23 17:19:49,227 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:19:49,229 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:19:49,229 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:19:49,229 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:19:49,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:49" (1/1) ... [2021-11-23 17:19:49,258 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:49" (1/1) ... [2021-11-23 17:19:49,298 INFO L137 Inliner]: procedures = 179, calls = 56, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 179 [2021-11-23 17:19:49,302 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:19:49,304 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:19:49,304 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:19:49,305 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:19:49,313 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:49" (1/1) ... [2021-11-23 17:19:49,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:49" (1/1) ... [2021-11-23 17:19:49,331 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:49" (1/1) ... [2021-11-23 17:19:49,339 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:49" (1/1) ... [2021-11-23 17:19:49,353 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:49" (1/1) ... [2021-11-23 17:19:49,376 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:49" (1/1) ... [2021-11-23 17:19:49,382 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:49" (1/1) ... [2021-11-23 17:19:49,395 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:19:49,399 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:19:49,400 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:19:49,400 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:19:49,401 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:49" (1/1) ... [2021-11-23 17:19:49,409 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:19:49,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ed48ddf-c5dc-4e33-93dc-518533502da2/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:19:49,439 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ed48ddf-c5dc-4e33-93dc-518533502da2/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:19:49,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ed48ddf-c5dc-4e33-93dc-518533502da2/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:19:49,495 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-23 17:19:49,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:19:49,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 17:19:49,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 17:19:49,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 17:19:49,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:19:49,496 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-11-23 17:19:49,497 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-11-23 17:19:49,497 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-11-23 17:19:49,497 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-11-23 17:19:49,497 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-11-23 17:19:49,497 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-11-23 17:19:49,497 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-23 17:19:49,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:19:49,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:19:49,500 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 17:19:49,751 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:19:49,763 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:19:50,235 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:19:50,389 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 17:19:50,393 INFO L158 Benchmark]: Toolchain (without parser) took 1919.19ms. Allocated memory is still 77.6MB. Free memory was 52.0MB in the beginning and 54.9MB in the end (delta: -2.9MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. [2021-11-23 17:19:50,393 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 52.4MB. Free memory is still 32.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:19:50,394 INFO L158 Benchmark]: CACSL2BoogieTranslator took 750.81ms. Allocated memory is still 77.6MB. Free memory was 51.8MB in the beginning and 47.2MB in the end (delta: 4.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-23 17:19:50,395 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.19ms. Allocated memory is still 77.6MB. Free memory was 47.2MB in the beginning and 44.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:19:50,396 INFO L158 Benchmark]: Boogie Preprocessor took 95.08ms. Allocated memory is still 77.6MB. Free memory was 44.6MB in the beginning and 42.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:19:50,397 INFO L158 Benchmark]: RCFGBuilder took 991.83ms. Allocated memory is still 77.6MB. Free memory was 41.9MB in the beginning and 54.9MB in the end (delta: -13.0MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. [2021-11-23 17:19:50,400 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 52.4MB. Free memory is still 32.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 750.81ms. Allocated memory is still 77.6MB. Free memory was 51.8MB in the beginning and 47.2MB in the end (delta: 4.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.19ms. Allocated memory is still 77.6MB. Free memory was 47.2MB in the beginning and 44.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 95.08ms. Allocated memory is still 77.6MB. Free memory was 44.6MB in the beginning and 42.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 991.83ms. Allocated memory is still 77.6MB. Free memory was 41.9MB in the beginning and 54.9MB in the end (delta: -13.0MB). Peak memory consumption was 15.4MB. 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 17:19:50,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ed48ddf-c5dc-4e33-93dc-518533502da2/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