./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-lit/fk2012.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_a79a39a9-cbcc-4bc2-b4e3-b4caedff01db/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a79a39a9-cbcc-4bc2-b4e3-b4caedff01db/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_a79a39a9-cbcc-4bc2-b4e3-b4caedff01db/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a79a39a9-cbcc-4bc2-b4e3-b4caedff01db/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-lit/fk2012.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a79a39a9-cbcc-4bc2-b4e3-b4caedff01db/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_a79a39a9-cbcc-4bc2-b4e3-b4caedff01db/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 25a65bfeb78eff83ae0d8a23f733f9dc95190d8c8aa20c7c495d09a2bd7eb6f0 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:34:18,327 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:34:18,328 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:34:18,363 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:34:18,363 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:34:18,364 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:34:18,366 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:34:18,369 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:34:18,371 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:34:18,372 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:34:18,373 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:34:18,375 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:34:18,375 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:34:18,377 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:34:18,378 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:34:18,380 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:34:18,380 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:34:18,381 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:34:18,384 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:34:18,386 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:34:18,388 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:34:18,390 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:34:18,391 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:34:18,392 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:34:18,396 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:34:18,396 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:34:18,397 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:34:18,398 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:34:18,398 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:34:18,399 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:34:18,400 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:34:18,401 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:34:18,402 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:34:18,402 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:34:18,404 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:34:18,404 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:34:18,405 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:34:18,405 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:34:18,406 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:34:18,407 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:34:18,407 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:34:18,408 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a79a39a9-cbcc-4bc2-b4e3-b4caedff01db/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:34:18,435 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:34:18,436 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:34:18,436 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:34:18,436 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:34:18,437 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:34:18,437 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:34:18,438 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:34:18,438 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:34:18,438 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:34:18,438 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:34:18,439 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:34:18,439 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:34:18,439 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:34:18,439 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:34:18,440 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:34:18,440 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:34:18,440 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:34:18,440 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:34:18,441 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:34:18,441 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:34:18,441 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:34:18,442 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:34:18,442 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:34:18,442 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:34:18,442 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:34:18,443 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:34:18,443 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:34:18,443 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:34:18,443 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:34:18,444 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:34:18,444 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:34:18,444 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:34:18,444 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:34:18,445 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:34:18,445 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:34:18,445 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:34:18,445 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:34:18,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:34:18,446 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:34:18,446 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:34:18,446 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:34:18,446 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_a79a39a9-cbcc-4bc2-b4e3-b4caedff01db/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a79a39a9-cbcc-4bc2-b4e3-b4caedff01db/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 25a65bfeb78eff83ae0d8a23f733f9dc95190d8c8aa20c7c495d09a2bd7eb6f0 [2021-11-23 17:34:18,762 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:34:18,784 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:34:18,788 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:34:18,789 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:34:18,790 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:34:18,791 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a79a39a9-cbcc-4bc2-b4e3-b4caedff01db/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/pthread-lit/fk2012.i [2021-11-23 17:34:18,865 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a79a39a9-cbcc-4bc2-b4e3-b4caedff01db/bin/utaipan-fb15Y9Yzbl/data/332820eaa/cc9ba5e1d90a4b959ff8388c55bc20a9/FLAG3f04b05bc [2021-11-23 17:34:19,470 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:34:19,471 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a79a39a9-cbcc-4bc2-b4e3-b4caedff01db/sv-benchmarks/c/pthread-lit/fk2012.i [2021-11-23 17:34:19,494 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a79a39a9-cbcc-4bc2-b4e3-b4caedff01db/bin/utaipan-fb15Y9Yzbl/data/332820eaa/cc9ba5e1d90a4b959ff8388c55bc20a9/FLAG3f04b05bc [2021-11-23 17:34:19,700 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a79a39a9-cbcc-4bc2-b4e3-b4caedff01db/bin/utaipan-fb15Y9Yzbl/data/332820eaa/cc9ba5e1d90a4b959ff8388c55bc20a9 [2021-11-23 17:34:19,702 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:34:19,705 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:34:19,709 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:34:19,709 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:34:19,713 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:34:19,714 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:34:19" (1/1) ... [2021-11-23 17:34:19,716 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@675d5d07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:19, skipping insertion in model container [2021-11-23 17:34:19,716 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:34:19" (1/1) ... [2021-11-23 17:34:19,724 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:34:19,788 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:34:20,017 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_a79a39a9-cbcc-4bc2-b4e3-b4caedff01db/sv-benchmarks/c/pthread-lit/fk2012.i[800,813] [2021-11-23 17:34:20,326 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:34:20,334 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:34:20,359 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_a79a39a9-cbcc-4bc2-b4e3-b4caedff01db/sv-benchmarks/c/pthread-lit/fk2012.i[800,813] [2021-11-23 17:34:20,413 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:34:20,499 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:34:20,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:20 WrapperNode [2021-11-23 17:34:20,499 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:34:20,501 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:34:20,501 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:34:20,501 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:34:20,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:20" (1/1) ... [2021-11-23 17:34:20,545 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:20" (1/1) ... [2021-11-23 17:34:20,577 INFO L137 Inliner]: procedures = 277, calls = 35, calls flagged for inlining = 16, calls inlined = 21, statements flattened = 158 [2021-11-23 17:34:20,577 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:34:20,578 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:34:20,578 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:34:20,578 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:34:20,585 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:20" (1/1) ... [2021-11-23 17:34:20,585 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:20" (1/1) ... [2021-11-23 17:34:20,589 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:20" (1/1) ... [2021-11-23 17:34:20,589 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:20" (1/1) ... [2021-11-23 17:34:20,596 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:20" (1/1) ... [2021-11-23 17:34:20,600 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:20" (1/1) ... [2021-11-23 17:34:20,603 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:20" (1/1) ... [2021-11-23 17:34:20,607 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:34:20,607 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:34:20,608 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:34:20,608 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:34:20,609 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:20" (1/1) ... [2021-11-23 17:34:20,624 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:34:20,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a79a39a9-cbcc-4bc2-b4e3-b4caedff01db/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:34:20,652 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a79a39a9-cbcc-4bc2-b4e3-b4caedff01db/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:34:20,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a79a39a9-cbcc-4bc2-b4e3-b4caedff01db/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:34:20,689 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-23 17:34:20,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 17:34:20,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 17:34:20,689 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-23 17:34:20,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 17:34:20,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:34:20,689 INFO L130 BoogieDeclarations]: Found specification of procedure producer [2021-11-23 17:34:20,690 INFO L138 BoogieDeclarations]: Found implementation of procedure producer [2021-11-23 17:34:20,690 INFO L130 BoogieDeclarations]: Found specification of procedure consumer [2021-11-23 17:34:20,690 INFO L138 BoogieDeclarations]: Found implementation of procedure consumer [2021-11-23 17:34:20,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:34:20,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:34:20,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:34:20,692 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 17:34:20,799 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:34:20,801 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:34:21,100 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:34:21,142 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 17:34:21,147 INFO L158 Benchmark]: Toolchain (without parser) took 1440.99ms. Allocated memory was 100.7MB in the beginning and 140.5MB in the end (delta: 39.8MB). Free memory was 58.4MB in the beginning and 111.6MB in the end (delta: -53.2MB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. [2021-11-23 17:34:21,148 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 100.7MB. Free memory is still 77.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:34:21,149 INFO L158 Benchmark]: CACSL2BoogieTranslator took 791.23ms. Allocated memory is still 100.7MB. Free memory was 58.2MB in the beginning and 57.8MB in the end (delta: 318.7kB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. [2021-11-23 17:34:21,149 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.63ms. Allocated memory is still 100.7MB. Free memory was 57.8MB in the beginning and 55.2MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 17:34:21,150 INFO L158 Benchmark]: Boogie Preprocessor took 28.87ms. Allocated memory is still 100.7MB. Free memory was 55.2MB in the beginning and 53.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:34:21,151 INFO L158 Benchmark]: RCFGBuilder took 537.44ms. Allocated memory was 100.7MB in the beginning and 140.5MB in the end (delta: 39.8MB). Free memory was 53.7MB in the beginning and 111.6MB in the end (delta: -57.9MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. [2021-11-23 17:34:21,156 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 100.7MB. Free memory is still 77.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 791.23ms. Allocated memory is still 100.7MB. Free memory was 58.2MB in the beginning and 57.8MB in the end (delta: 318.7kB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.63ms. Allocated memory is still 100.7MB. Free memory was 57.8MB in the beginning and 55.2MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.87ms. Allocated memory is still 100.7MB. Free memory was 55.2MB in the beginning and 53.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 537.44ms. Allocated memory was 100.7MB in the beginning and 140.5MB in the end (delta: 39.8MB). Free memory was 53.7MB in the beginning and 111.6MB in the end (delta: -57.9MB). Peak memory consumption was 22.1MB. 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 17:34:21,195 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a79a39a9-cbcc-4bc2-b4e3-b4caedff01db/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_a79a39a9-cbcc-4bc2-b4e3-b4caedff01db/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a79a39a9-cbcc-4bc2-b4e3-b4caedff01db/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_a79a39a9-cbcc-4bc2-b4e3-b4caedff01db/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a79a39a9-cbcc-4bc2-b4e3-b4caedff01db/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-lit/fk2012.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a79a39a9-cbcc-4bc2-b4e3-b4caedff01db/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_a79a39a9-cbcc-4bc2-b4e3-b4caedff01db/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 25a65bfeb78eff83ae0d8a23f733f9dc95190d8c8aa20c7c495d09a2bd7eb6f0 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:34:23,698 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:34:23,701 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:34:23,758 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:34:23,758 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:34:23,763 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:34:23,766 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:34:23,770 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:34:23,774 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:34:23,782 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:34:23,783 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:34:23,785 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:34:23,786 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:34:23,788 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:34:23,790 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:34:23,795 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:34:23,796 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:34:23,797 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:34:23,799 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:34:23,807 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:34:23,809 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:34:23,811 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:34:23,813 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:34:23,815 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:34:23,819 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:34:23,820 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:34:23,820 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:34:23,822 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:34:23,823 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:34:23,824 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:34:23,824 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:34:23,825 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:34:23,827 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:34:23,828 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:34:23,829 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:34:23,829 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:34:23,830 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:34:23,830 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:34:23,831 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:34:23,833 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:34:23,833 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:34:23,840 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a79a39a9-cbcc-4bc2-b4e3-b4caedff01db/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:34:23,887 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:34:23,888 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:34:23,888 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:34:23,889 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:34:23,890 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:34:23,890 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:34:23,890 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:34:23,890 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:34:23,891 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:34:23,891 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:34:23,892 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:34:23,892 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:34:23,894 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:34:23,894 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:34:23,894 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:34:23,894 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:34:23,894 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:34:23,895 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:34:23,895 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:34:23,895 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:34:23,895 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:34:23,896 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:34:23,896 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:34:23,896 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:34:23,896 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:34:23,896 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:34:23,897 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:34:23,897 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:34:23,897 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:34:23,897 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:34:23,898 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:34:23,898 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:34:23,899 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:34:23,899 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:34:23,899 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:34:23,899 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:34:23,900 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:34:23,900 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:34:23,900 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_a79a39a9-cbcc-4bc2-b4e3-b4caedff01db/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a79a39a9-cbcc-4bc2-b4e3-b4caedff01db/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 25a65bfeb78eff83ae0d8a23f733f9dc95190d8c8aa20c7c495d09a2bd7eb6f0 [2021-11-23 17:34:24,362 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:34:24,392 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:34:24,395 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:34:24,396 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:34:24,397 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:34:24,398 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a79a39a9-cbcc-4bc2-b4e3-b4caedff01db/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/pthread-lit/fk2012.i [2021-11-23 17:34:24,476 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a79a39a9-cbcc-4bc2-b4e3-b4caedff01db/bin/utaipan-fb15Y9Yzbl/data/01ba1cd65/152f23e1daad46c781604a853a8b0642/FLAGe4da4d046 [2021-11-23 17:34:25,158 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:34:25,171 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a79a39a9-cbcc-4bc2-b4e3-b4caedff01db/sv-benchmarks/c/pthread-lit/fk2012.i [2021-11-23 17:34:25,198 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a79a39a9-cbcc-4bc2-b4e3-b4caedff01db/bin/utaipan-fb15Y9Yzbl/data/01ba1cd65/152f23e1daad46c781604a853a8b0642/FLAGe4da4d046 [2021-11-23 17:34:25,410 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a79a39a9-cbcc-4bc2-b4e3-b4caedff01db/bin/utaipan-fb15Y9Yzbl/data/01ba1cd65/152f23e1daad46c781604a853a8b0642 [2021-11-23 17:34:25,413 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:34:25,414 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:34:25,415 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:34:25,415 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:34:25,420 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:34:25,425 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:34:25" (1/1) ... [2021-11-23 17:34:25,426 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f79ed71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:25, skipping insertion in model container [2021-11-23 17:34:25,426 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:34:25" (1/1) ... [2021-11-23 17:34:25,436 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:34:25,511 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:34:25,699 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_a79a39a9-cbcc-4bc2-b4e3-b4caedff01db/sv-benchmarks/c/pthread-lit/fk2012.i[800,813] [2021-11-23 17:34:25,991 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:34:26,003 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:34:26,015 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_a79a39a9-cbcc-4bc2-b4e3-b4caedff01db/sv-benchmarks/c/pthread-lit/fk2012.i[800,813] [2021-11-23 17:34:26,089 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:34:26,152 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:34:26,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:26 WrapperNode [2021-11-23 17:34:26,153 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:34:26,154 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:34:26,154 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:34:26,154 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:34:26,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:26" (1/1) ... [2021-11-23 17:34:26,181 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:26" (1/1) ... [2021-11-23 17:34:26,248 INFO L137 Inliner]: procedures = 280, calls = 35, calls flagged for inlining = 16, calls inlined = 21, statements flattened = 157 [2021-11-23 17:34:26,248 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:34:26,250 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:34:26,250 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:34:26,250 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:34:26,258 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:26" (1/1) ... [2021-11-23 17:34:26,259 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:26" (1/1) ... [2021-11-23 17:34:26,283 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:26" (1/1) ... [2021-11-23 17:34:26,284 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:26" (1/1) ... [2021-11-23 17:34:26,293 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:26" (1/1) ... [2021-11-23 17:34:26,309 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:26" (1/1) ... [2021-11-23 17:34:26,312 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:26" (1/1) ... [2021-11-23 17:34:26,317 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:34:26,318 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:34:26,318 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:34:26,318 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:34:26,319 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:26" (1/1) ... [2021-11-23 17:34:26,343 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:34:26,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a79a39a9-cbcc-4bc2-b4e3-b4caedff01db/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:34:26,368 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a79a39a9-cbcc-4bc2-b4e3-b4caedff01db/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:34:26,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a79a39a9-cbcc-4bc2-b4e3-b4caedff01db/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:34:26,417 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-23 17:34:26,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 17:34:26,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 17:34:26,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 17:34:26,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:34:26,422 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-23 17:34:26,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:34:26,423 INFO L130 BoogieDeclarations]: Found specification of procedure producer [2021-11-23 17:34:26,423 INFO L138 BoogieDeclarations]: Found implementation of procedure producer [2021-11-23 17:34:26,423 INFO L130 BoogieDeclarations]: Found specification of procedure consumer [2021-11-23 17:34:26,423 INFO L138 BoogieDeclarations]: Found implementation of procedure consumer [2021-11-23 17:34:26,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:34:26,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:34:26,425 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 17:34:26,556 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:34:26,557 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:34:26,901 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:34:26,971 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 17:34:26,980 INFO L158 Benchmark]: Toolchain (without parser) took 1563.50ms. Allocated memory was 67.1MB in the beginning and 96.5MB in the end (delta: 29.4MB). Free memory was 44.7MB in the beginning and 58.6MB in the end (delta: -13.9MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. [2021-11-23 17:34:26,981 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 67.1MB. Free memory is still 48.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:34:26,982 INFO L158 Benchmark]: CACSL2BoogieTranslator took 737.92ms. Allocated memory is still 67.1MB. Free memory was 44.6MB in the beginning and 31.0MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 17:34:26,984 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.37ms. Allocated memory was 67.1MB in the beginning and 96.5MB in the end (delta: 29.4MB). Free memory was 30.7MB in the beginning and 77.1MB in the end (delta: -46.3MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2021-11-23 17:34:26,985 INFO L158 Benchmark]: Boogie Preprocessor took 67.80ms. Allocated memory is still 96.5MB. Free memory was 77.1MB in the beginning and 75.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:34:26,986 INFO L158 Benchmark]: RCFGBuilder took 658.78ms. Allocated memory is still 96.5MB. Free memory was 75.0MB in the beginning and 58.6MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-23 17:34:26,994 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 67.1MB. Free memory is still 48.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 737.92ms. Allocated memory is still 67.1MB. Free memory was 44.6MB in the beginning and 31.0MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 94.37ms. Allocated memory was 67.1MB in the beginning and 96.5MB in the end (delta: 29.4MB). Free memory was 30.7MB in the beginning and 77.1MB in the end (delta: -46.3MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.80ms. Allocated memory is still 96.5MB. Free memory was 77.1MB in the beginning and 75.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 658.78ms. Allocated memory is still 96.5MB. Free memory was 75.0MB in the beginning and 58.6MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. 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 17:34:27,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a79a39a9-cbcc-4bc2-b4e3-b4caedff01db/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