./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-pthread/cs_read_write_lock-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8b6bc29-75c9-46f3-9971-eb0b50012df6/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8b6bc29-75c9-46f3-9971-eb0b50012df6/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8b6bc29-75c9-46f3-9971-eb0b50012df6/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8b6bc29-75c9-46f3-9971-eb0b50012df6/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-pthread/cs_read_write_lock-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8b6bc29-75c9-46f3-9971-eb0b50012df6/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8b6bc29-75c9-46f3-9971-eb0b50012df6/bin/utaipan-aC7eJsxGYH --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 1458378674bd140ace04512980940eeb05aa22f50528a181d147a292aa3349d2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:41:33,448 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:41:33,451 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:41:33,537 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:41:33,538 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:41:33,544 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:41:33,547 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:41:33,552 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:41:33,555 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:41:33,562 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:41:33,564 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:41:33,566 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:41:33,567 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:41:33,570 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:41:33,573 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:41:33,578 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:41:33,581 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:41:33,582 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:41:33,585 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:41:33,595 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:41:33,597 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:41:33,599 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:41:33,603 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:41:33,604 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:41:33,616 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:41:33,616 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:41:33,617 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:41:33,619 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:41:33,620 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:41:33,622 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:41:33,622 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:41:33,623 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:41:33,626 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:41:33,627 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:41:33,629 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:41:33,629 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:41:33,630 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:41:33,631 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:41:33,631 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:41:33,632 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:41:33,633 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:41:33,634 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8b6bc29-75c9-46f3-9971-eb0b50012df6/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-03 05:41:33,691 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:41:33,691 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:41:33,693 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:41:33,693 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:41:33,693 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:41:33,693 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:41:33,694 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 05:41:33,694 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:41:33,694 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:41:33,694 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 05:41:33,696 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 05:41:33,696 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:41:33,696 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 05:41:33,697 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 05:41:33,697 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 05:41:33,698 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:41:33,698 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 05:41:33,699 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 05:41:33,699 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 05:41:33,699 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:41:33,699 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:41:33,700 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:41:33,700 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:41:33,700 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:41:33,700 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 05:41:33,701 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:41:33,701 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:41:33,701 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:41:33,702 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:41:33,703 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:41:33,704 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:41:33,704 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:41:33,704 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:41:33,705 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:41:33,705 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 05:41:33,705 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 05:41:33,705 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:41:33,706 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:41:33,706 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:41:33,706 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_b8b6bc29-75c9-46f3-9971-eb0b50012df6/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8b6bc29-75c9-46f3-9971-eb0b50012df6/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1458378674bd140ace04512980940eeb05aa22f50528a181d147a292aa3349d2 [2021-11-03 05:41:34,074 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:41:34,101 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:41:34,104 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:41:34,107 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:41:34,108 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:41:34,109 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8b6bc29-75c9-46f3-9971-eb0b50012df6/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/seq-pthread/cs_read_write_lock-2.i [2021-11-03 05:41:34,202 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8b6bc29-75c9-46f3-9971-eb0b50012df6/bin/utaipan-aC7eJsxGYH/data/7536d4f4f/fba425f422504597b95fd17737fe542f/FLAG4c2fe0000 [2021-11-03 05:41:35,011 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:41:35,012 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8b6bc29-75c9-46f3-9971-eb0b50012df6/sv-benchmarks/c/seq-pthread/cs_read_write_lock-2.i [2021-11-03 05:41:35,046 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8b6bc29-75c9-46f3-9971-eb0b50012df6/bin/utaipan-aC7eJsxGYH/data/7536d4f4f/fba425f422504597b95fd17737fe542f/FLAG4c2fe0000 [2021-11-03 05:41:35,225 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8b6bc29-75c9-46f3-9971-eb0b50012df6/bin/utaipan-aC7eJsxGYH/data/7536d4f4f/fba425f422504597b95fd17737fe542f [2021-11-03 05:41:35,228 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:41:35,230 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:41:35,232 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:41:35,232 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:41:35,236 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:41:35,237 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:41:35" (1/1) ... [2021-11-03 05:41:35,238 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bafec82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:35, skipping insertion in model container [2021-11-03 05:41:35,239 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:41:35" (1/1) ... [2021-11-03 05:41:35,248 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:41:35,333 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:41:35,786 WARN L228 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_b8b6bc29-75c9-46f3-9971-eb0b50012df6/sv-benchmarks/c/seq-pthread/cs_read_write_lock-2.i[23469,23482] [2021-11-03 05:41:35,907 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:41:35,926 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 05:41:35,959 WARN L228 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_b8b6bc29-75c9-46f3-9971-eb0b50012df6/sv-benchmarks/c/seq-pthread/cs_read_write_lock-2.i[23469,23482] [2021-11-03 05:41:36,021 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:41:36,065 INFO L208 MainTranslator]: Completed translation [2021-11-03 05:41:36,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:36 WrapperNode [2021-11-03 05:41:36,066 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:41:36,067 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 05:41:36,067 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 05:41:36,067 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 05:41:36,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:36" (1/1) ... [2021-11-03 05:41:36,108 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:36" (1/1) ... [2021-11-03 05:41:36,386 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 05:41:36,387 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 05:41:36,387 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 05:41:36,388 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 05:41:36,398 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:36" (1/1) ... [2021-11-03 05:41:36,398 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:36" (1/1) ... [2021-11-03 05:41:36,449 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:36" (1/1) ... [2021-11-03 05:41:36,450 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:36" (1/1) ... [2021-11-03 05:41:36,557 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:36" (1/1) ... [2021-11-03 05:41:36,604 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:36" (1/1) ... [2021-11-03 05:41:36,621 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:36" (1/1) ... [2021-11-03 05:41:36,640 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 05:41:36,642 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 05:41:36,642 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 05:41:36,642 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 05:41:36,643 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:36" (1/1) ... [2021-11-03 05:41:36,652 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:41:36,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8b6bc29-75c9-46f3-9971-eb0b50012df6/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:41:36,680 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8b6bc29-75c9-46f3-9971-eb0b50012df6/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 05:41:36,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8b6bc29-75c9-46f3-9971-eb0b50012df6/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 05:41:36,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-03 05:41:36,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-03 05:41:36,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 05:41:36,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 05:41:36,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 05:41:36,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 05:41:36,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-03 05:41:36,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 05:41:36,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 05:41:37,075 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-03 05:41:37,111 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-03 05:41:37,128 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-03 05:41:37,141 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-03 05:41:37,189 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-03 05:41:43,208 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##652: assume !(0 == assume_abort_if_not_~cond); [2021-11-03 05:41:43,208 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##651: assume 0 == assume_abort_if_not_~cond;assume false; [2021-11-03 05:41:43,209 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L2-18: ~__CS_round~0 := ~__CS_round~0 % 256 + __CS_cs_~k~0 % 256;assume -2147483648 <= __CS_cs_#t~nondet6 && __CS_cs_#t~nondet6 <= 2147483647; [2021-11-03 05:41:43,209 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L2-45: ~__CS_round~0 := ~__CS_round~0 % 256 + __CS_cs_~k~0 % 256;assume -2147483648 <= __CS_cs_#t~nondet6 && __CS_cs_#t~nondet6 <= 2147483647; [2021-11-03 05:41:43,209 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L2-72: ~__CS_round~0 := ~__CS_round~0 % 256 + __CS_cs_~k~0 % 256;assume -2147483648 <= __CS_cs_#t~nondet6 && __CS_cs_#t~nondet6 <= 2147483647; [2021-11-03 05:41:43,209 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L2-99: ~__CS_round~0 := ~__CS_round~0 % 256 + __CS_cs_~k~0 % 256;assume -2147483648 <= __CS_cs_#t~nondet6 && __CS_cs_#t~nondet6 <= 2147483647; [2021-11-03 05:41:43,210 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L2-126: ~__CS_round~0 := ~__CS_round~0 % 256 + __CS_cs_~k~0 % 256;assume -2147483648 <= __CS_cs_#t~nondet6 && __CS_cs_#t~nondet6 <= 2147483647; [2021-11-03 05:41:43,210 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1135: assume 0 == assume_abort_if_not_~cond;assume false; [2021-11-03 05:41:43,210 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1136: assume !(0 == assume_abort_if_not_~cond); [2021-11-03 05:41:43,210 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L560-14: assume 0 != ~__CS_ret~0 % 256;reader_#res.base, reader_#res.offset := 0, 0; [2021-11-03 05:41:43,210 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L560-14: assume !(0 != ~__CS_ret~0 % 256); [2021-11-03 05:41:43,211 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L560-37: assume 0 != ~__CS_ret~0 % 256;reader_#res.base, reader_#res.offset := 0, 0; [2021-11-03 05:41:43,211 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L560-37: assume !(0 != ~__CS_ret~0 % 256); [2021-11-03 05:41:43,211 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L560-60: assume 0 != ~__CS_ret~0 % 256;reader_#res.base, reader_#res.offset := 0, 0; [2021-11-03 05:41:43,211 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L560-60: assume !(0 != ~__CS_ret~0 % 256); [2021-11-03 05:41:43,211 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L560-83: assume 0 != ~__CS_ret~0 % 256;reader_#res.base, reader_#res.offset := 0, 0; [2021-11-03 05:41:43,212 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L560-83: assume !(0 != ~__CS_ret~0 % 256); [2021-11-03 05:41:43,212 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L560-106: assume 0 != ~__CS_ret~0 % 256;reader_#res.base, reader_#res.offset := 0, 0; [2021-11-03 05:41:43,212 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L560-106: assume !(0 != ~__CS_ret~0 % 256); [2021-11-03 05:41:43,212 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##409: assume 0 == assume_abort_if_not_~cond;assume false; [2021-11-03 05:41:43,212 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##410: assume !(0 == assume_abort_if_not_~cond); [2021-11-03 05:41:43,213 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##894: assume !(0 == assume_abort_if_not_~cond); [2021-11-03 05:41:43,213 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##893: assume 0 == assume_abort_if_not_~cond;assume false; [2021-11-03 05:41:43,213 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L565-42: assume 0 != __CS_cs_#t~nondet6 && 1 == ~__CS_round~0 % 256;__CS_cs_#t~ite7 := ~__CS_ret_PREEMPTED~0 % 256; [2021-11-03 05:41:43,213 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L565-42: assume !(0 != __CS_cs_#t~nondet6 && 1 == ~__CS_round~0 % 256);__CS_cs_#t~ite7 := ~__CS_ret~0 % 256; [2021-11-03 05:41:43,213 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L565-44: ~__CS_ret~0 := __CS_cs_#t~ite7;havoc __CS_cs_#t~nondet6;havoc __CS_cs_#t~ite7; [2021-11-03 05:41:43,214 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L565-111: assume 0 != __CS_cs_#t~nondet6 && 1 == ~__CS_round~0 % 256;__CS_cs_#t~ite7 := ~__CS_ret_PREEMPTED~0 % 256; [2021-11-03 05:41:43,218 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L565-111: assume !(0 != __CS_cs_#t~nondet6 && 1 == ~__CS_round~0 % 256);__CS_cs_#t~ite7 := ~__CS_ret~0 % 256; [2021-11-03 05:41:43,218 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L565-113: ~__CS_ret~0 := __CS_cs_#t~ite7;havoc __CS_cs_#t~nondet6;havoc __CS_cs_#t~ite7; [2021-11-03 05:41:43,219 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L565-180: assume 0 != __CS_cs_#t~nondet6 && 1 == ~__CS_round~0 % 256;__CS_cs_#t~ite7 := ~__CS_ret_PREEMPTED~0 % 256; [2021-11-03 05:41:43,219 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L565-180: assume !(0 != __CS_cs_#t~nondet6 && 1 == ~__CS_round~0 % 256);__CS_cs_#t~ite7 := ~__CS_ret~0 % 256; [2021-11-03 05:41:43,219 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L565-182: ~__CS_ret~0 := __CS_cs_#t~ite7;havoc __CS_cs_#t~nondet6;havoc __CS_cs_#t~ite7; [2021-11-03 05:41:43,227 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L565-249: assume 0 != __CS_cs_#t~nondet6 && 1 == ~__CS_round~0 % 256;__CS_cs_#t~ite7 := ~__CS_ret_PREEMPTED~0 % 256; [2021-11-03 05:41:43,227 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L565-249: assume !(0 != __CS_cs_#t~nondet6 && 1 == ~__CS_round~0 % 256);__CS_cs_#t~ite7 := ~__CS_ret~0 % 256; [2021-11-03 05:41:43,227 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L565-251: ~__CS_ret~0 := __CS_cs_#t~ite7;havoc __CS_cs_#t~nondet6;havoc __CS_cs_#t~ite7; [2021-11-03 05:41:43,228 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L565-318: assume 0 != __CS_cs_#t~nondet6 && 1 == ~__CS_round~0 % 256;__CS_cs_#t~ite7 := ~__CS_ret_PREEMPTED~0 % 256; [2021-11-03 05:41:43,229 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L565-318: assume !(0 != __CS_cs_#t~nondet6 && 1 == ~__CS_round~0 % 256);__CS_cs_#t~ite7 := ~__CS_ret~0 % 256; [2021-11-03 05:41:43,229 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L565-320: ~__CS_ret~0 := __CS_cs_#t~ite7;havoc __CS_cs_#t~nondet6;havoc __CS_cs_#t~ite7; [2021-11-03 05:41:43,229 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##168: assume !(0 == assume_abort_if_not_~cond); [2021-11-03 05:41:43,229 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##167: assume 0 == assume_abort_if_not_~cond;assume false; [2021-11-03 05:48:33,393 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:48:33,393 INFO L299 CfgBuilder]: Removed 654 assume(true) statements. [2021-11-03 05:48:33,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:48:33 BoogieIcfgContainer [2021-11-03 05:48:33,396 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:48:33,398 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:48:33,398 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:48:33,401 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:48:33,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:41:35" (1/3) ... [2021-11-03 05:48:33,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b829272 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:48:33, skipping insertion in model container [2021-11-03 05:48:33,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:36" (2/3) ... [2021-11-03 05:48:33,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b829272 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:48:33, skipping insertion in model container [2021-11-03 05:48:33,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:48:33" (3/3) ... [2021-11-03 05:48:33,404 INFO L111 eAbstractionObserver]: Analyzing ICFG cs_read_write_lock-2.i [2021-11-03 05:48:33,410 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:48:33,410 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-03 05:48:33,462 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:48:33,467 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 05:48:33,468 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-03 05:48:33,480 INFO L276 IsEmpty]: Start isEmpty. Operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:48:33,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-03 05:48:33,485 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:48:33,486 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-03 05:48:33,487 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 05:48:33,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:48:33,492 INFO L85 PathProgramCache]: Analyzing trace with hash 4957778, now seen corresponding path program 1 times [2021-11-03 05:48:33,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 05:48:33,502 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436239482] [2021-11-03 05:48:33,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:48:33,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms