./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-pthread/cs_queue-2.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_ed5fef00-5af7-4221-a6b9-b62fce2f64ca/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed5fef00-5af7-4221-a6b9-b62fce2f64ca/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_ed5fef00-5af7-4221-a6b9-b62fce2f64ca/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed5fef00-5af7-4221-a6b9-b62fce2f64ca/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-pthread/cs_queue-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed5fef00-5af7-4221-a6b9-b62fce2f64ca/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_ed5fef00-5af7-4221-a6b9-b62fce2f64ca/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 8159433f4ea1208e9ded3d30d98c55f64500f74c12655a237b65d69e94898ea5 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 16:55:16,552 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 16:55:16,555 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 16:55:16,633 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 16:55:16,634 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 16:55:16,639 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 16:55:16,641 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 16:55:16,646 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 16:55:16,649 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 16:55:16,655 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 16:55:16,657 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 16:55:16,659 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 16:55:16,660 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 16:55:16,663 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 16:55:16,666 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 16:55:16,675 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 16:55:16,678 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 16:55:16,679 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 16:55:16,682 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 16:55:16,691 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 16:55:16,693 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 16:55:16,695 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 16:55:16,699 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 16:55:16,700 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 16:55:16,712 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 16:55:16,712 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 16:55:16,713 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 16:55:16,715 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 16:55:16,716 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 16:55:16,718 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 16:55:16,719 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 16:55:16,720 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 16:55:16,723 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 16:55:16,724 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 16:55:16,726 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 16:55:16,727 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 16:55:16,728 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 16:55:16,728 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 16:55:16,728 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 16:55:16,729 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 16:55:16,730 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 16:55:16,731 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed5fef00-5af7-4221-a6b9-b62fce2f64ca/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 16:55:16,784 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 16:55:16,785 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 16:55:16,786 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 16:55:16,786 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 16:55:16,788 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 16:55:16,788 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 16:55:16,788 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 16:55:16,789 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 16:55:16,789 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 16:55:16,789 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 16:55:16,790 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 16:55:16,791 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 16:55:16,791 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 16:55:16,791 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 16:55:16,792 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 16:55:16,792 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 16:55:16,792 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 16:55:16,793 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 16:55:16,794 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 16:55:16,794 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 16:55:16,794 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 16:55:16,794 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 16:55:16,795 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 16:55:16,795 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 16:55:16,795 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 16:55:16,796 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 16:55:16,797 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 16:55:16,798 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 16:55:16,798 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 16:55:16,798 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 16:55:16,799 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 16:55:16,799 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 16:55:16,800 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:55:16,800 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 16:55:16,800 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 16:55:16,800 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 16:55:16,801 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 16:55:16,801 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 16:55:16,801 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 16:55:16,801 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 16:55:16,802 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 16:55:16,802 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_ed5fef00-5af7-4221-a6b9-b62fce2f64ca/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed5fef00-5af7-4221-a6b9-b62fce2f64ca/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8159433f4ea1208e9ded3d30d98c55f64500f74c12655a237b65d69e94898ea5 [2021-11-23 16:55:17,126 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 16:55:17,154 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 16:55:17,158 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 16:55:17,159 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 16:55:17,160 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 16:55:17,162 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed5fef00-5af7-4221-a6b9-b62fce2f64ca/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/seq-pthread/cs_queue-2.i [2021-11-23 16:55:17,266 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed5fef00-5af7-4221-a6b9-b62fce2f64ca/bin/utaipan-fb15Y9Yzbl/data/b4ef08d87/c0a5460b2cf249bfb465b2c5ae19b6c2/FLAG8f95e5af7 [2021-11-23 16:55:18,086 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 16:55:18,087 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed5fef00-5af7-4221-a6b9-b62fce2f64ca/sv-benchmarks/c/seq-pthread/cs_queue-2.i [2021-11-23 16:55:18,126 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed5fef00-5af7-4221-a6b9-b62fce2f64ca/bin/utaipan-fb15Y9Yzbl/data/b4ef08d87/c0a5460b2cf249bfb465b2c5ae19b6c2/FLAG8f95e5af7 [2021-11-23 16:55:18,191 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed5fef00-5af7-4221-a6b9-b62fce2f64ca/bin/utaipan-fb15Y9Yzbl/data/b4ef08d87/c0a5460b2cf249bfb465b2c5ae19b6c2 [2021-11-23 16:55:18,197 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 16:55:18,200 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 16:55:18,206 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 16:55:18,206 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 16:55:18,211 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 16:55:18,212 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:55:18" (1/1) ... [2021-11-23 16:55:18,215 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33c8fa8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:55:18, skipping insertion in model container [2021-11-23 16:55:18,216 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:55:18" (1/1) ... [2021-11-23 16:55:18,225 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 16:55:18,312 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 16:55:18,898 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_ed5fef00-5af7-4221-a6b9-b62fce2f64ca/sv-benchmarks/c/seq-pthread/cs_queue-2.i[34556,34569] [2021-11-23 16:55:19,198 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:55:19,223 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 16:55:19,290 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_ed5fef00-5af7-4221-a6b9-b62fce2f64ca/sv-benchmarks/c/seq-pthread/cs_queue-2.i[34556,34569] [2021-11-23 16:55:19,441 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:55:19,548 INFO L208 MainTranslator]: Completed translation [2021-11-23 16:55:19,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:55:19 WrapperNode [2021-11-23 16:55:19,549 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 16:55:19,550 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 16:55:19,550 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 16:55:19,551 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 16:55:19,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:55:19" (1/1) ... [2021-11-23 16:55:19,603 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:55:19" (1/1) ... [2021-11-23 16:55:19,705 INFO L137 Inliner]: procedures = 249, calls = 533, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 1089 [2021-11-23 16:55:19,717 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 16:55:19,719 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 16:55:19,719 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 16:55:19,719 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 16:55:19,730 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:55:19" (1/1) ... [2021-11-23 16:55:19,731 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:55:19" (1/1) ... [2021-11-23 16:55:19,756 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:55:19" (1/1) ... [2021-11-23 16:55:19,757 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:55:19" (1/1) ... [2021-11-23 16:55:19,810 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:55:19" (1/1) ... [2021-11-23 16:55:19,820 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:55:19" (1/1) ... [2021-11-23 16:55:19,825 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:55:19" (1/1) ... [2021-11-23 16:55:19,849 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 16:55:19,850 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 16:55:19,850 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 16:55:19,851 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 16:55:19,852 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:55:19" (1/1) ... [2021-11-23 16:55:19,861 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:55:19,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed5fef00-5af7-4221-a6b9-b62fce2f64ca/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 16:55:19,898 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed5fef00-5af7-4221-a6b9-b62fce2f64ca/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 16:55:19,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed5fef00-5af7-4221-a6b9-b62fce2f64ca/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 16:55:19,962 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 16:55:19,963 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 16:55:19,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 16:55:19,963 INFO L130 BoogieDeclarations]: Found specification of procedure empty [2021-11-23 16:55:19,963 INFO L138 BoogieDeclarations]: Found implementation of procedure empty [2021-11-23 16:55:19,963 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_lock [2021-11-23 16:55:19,964 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_lock [2021-11-23 16:55:19,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 16:55:19,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 16:55:19,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 16:55:19,965 INFO L130 BoogieDeclarations]: Found specification of procedure enqueue [2021-11-23 16:55:19,965 INFO L138 BoogieDeclarations]: Found implementation of procedure enqueue [2021-11-23 16:55:19,965 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_unlock [2021-11-23 16:55:19,965 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_unlock [2021-11-23 16:55:19,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 16:55:19,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 16:55:19,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 16:55:19,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 16:55:19,966 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2021-11-23 16:55:19,967 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2021-11-23 16:55:19,967 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2021-11-23 16:55:19,967 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2021-11-23 16:55:19,967 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2021-11-23 16:55:19,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2021-11-23 16:55:19,968 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2021-11-23 16:55:19,968 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2021-11-23 16:55:19,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 16:55:19,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 16:55:19,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 16:55:20,375 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 16:55:20,377 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 16:55:20,466 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume !(0 != ~__CS_ret~0 % 256); [2021-11-23 16:55:20,466 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !(0 != ~__CS_ret~0 % 256); [2021-11-23 16:55:20,466 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume 0 != ~__CS_ret~0 % 256;#res := 0; [2021-11-23 16:55:20,467 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume 0 != ~__CS_ret~0 % 256;#res := 0; [2021-11-23 16:55:20,535 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !(0 != ~__CS_ret~0 % 256); [2021-11-23 16:55:20,535 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume 0 != ~__CS_ret~0 % 256;#res := 0; [2021-11-23 16:55:21,140 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L1097: SUMMARY for call __CS_cs(); srcloc: null [2021-11-23 16:55:21,140 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L1097-1: assume 0 != ~__CS_ret~0 % 256;t2_#res#1.base, t2_#res#1.offset := 0, 0; [2021-11-23 16:55:21,140 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L1097-1: assume !(0 != ~__CS_ret~0 % 256); [2021-11-23 16:55:21,140 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L1132: SUMMARY for call __CS_cs(); srcloc: null [2021-11-23 16:55:21,141 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L1132-1: assume 0 != ~__CS_ret~0 % 256;main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset);havoc main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset);havoc main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset; [2021-11-23 16:55:21,141 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L1132-1: assume !(0 != ~__CS_ret~0 % 256); [2021-11-23 16:55:21,141 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L1075: SUMMARY for call __CS_cs(); srcloc: null [2021-11-23 16:55:21,142 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L1075-1: assume 0 != ~__CS_ret~0 % 256;t1_#res#1.base, t1_#res#1.offset := 0, 0; [2021-11-23 16:55:21,143 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L1075-1: assume !(0 != ~__CS_ret~0 % 256); [2021-11-23 16:55:21,143 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume !(0 != ~__CS_ret~0 % 256); [2021-11-23 16:55:21,144 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##86: assume 0 != ~__CS_ret~0 % 256;t2_#res#1.base, t2_#res#1.offset := 0, 0; [2021-11-23 16:55:21,144 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !(0 != ~__CS_ret~0 % 256); [2021-11-23 16:55:21,144 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume 0 != ~__CS_ret~0 % 256;t2_#res#1.base, t2_#res#1.offset := 0, 0; [2021-11-23 16:55:21,145 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##79: assume !(0 != ~__CS_ret~0 % 256); [2021-11-23 16:55:21,145 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##78: assume 0 != ~__CS_ret~0 % 256;dequeue_#res#1 := 0; [2021-11-23 16:55:21,145 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##129: assume !(0 != ~__CS_ret~0 % 256); [2021-11-23 16:55:21,145 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##128: assume 0 != ~__CS_ret~0 % 256;t1_#res#1.base, t1_#res#1.offset := 0, 0; [2021-11-23 16:55:21,146 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume !(0 != ~__CS_ret~0 % 256); [2021-11-23 16:55:21,146 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume 0 != ~__CS_ret~0 % 256;main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset);havoc main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset);havoc main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset; [2021-11-23 16:55:21,146 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##24: assume !(0 != ~__CS_ret~0 % 256); [2021-11-23 16:55:21,147 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##23: assume 0 != ~__CS_ret~0 % 256;main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset);havoc main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset);havoc main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset; [2021-11-23 16:55:21,147 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##166: assume 0 != ~__CS_ret~0 % 256;t1_#res#1.base, t1_#res#1.offset := 0, 0; [2021-11-23 16:55:21,147 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##169: assume !(0 != ~__CS_ret~0 % 256); [2021-11-23 16:55:21,147 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##168: assume 0 != ~__CS_ret~0 % 256;t1_#res#1.base, t1_#res#1.offset := 0, 0; [2021-11-23 16:55:21,148 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##167: assume !(0 != ~__CS_ret~0 % 256); [2021-11-23 16:55:21,148 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##104: assume 0 != ~__CS_ret~0 % 256;t2_#res#1.base, t2_#res#1.offset := 0, 0; [2021-11-23 16:55:21,148 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##105: assume !(0 != ~__CS_ret~0 % 256); [2021-11-23 16:55:21,148 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##118: assume !(0 != ~__CS_ret~0 % 256); [2021-11-23 16:55:21,148 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##117: assume 0 != ~__CS_ret~0 % 256;t1_#res#1.base, t1_#res#1.offset := 0, 0; [2021-11-23 16:55:26,261 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 16:55:26,498 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.addBranchEncoders(TransFormulaBuilder.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.parallelComposition(TransFormulaUtils.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.ParallelComposition.(ParallelComposition.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CodeBlockFactory.constructParallelComposition(CodeBlockFactory.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.composeParallel(CfgBuilder.java:1792) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.(CfgBuilder.java:1653) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:280) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$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 16:55:26,504 INFO L158 Benchmark]: Toolchain (without parser) took 8301.82ms. Allocated memory was 86.0MB in the beginning and 331.4MB in the end (delta: 245.4MB). Free memory was 48.4MB in the beginning and 259.2MB in the end (delta: -210.8MB). Peak memory consumption was 148.6MB. Max. memory is 16.1GB. [2021-11-23 16:55:26,505 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 86.0MB. Free memory was 57.0MB in the beginning and 57.0MB in the end (delta: 25.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:55:26,506 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1343.61ms. Allocated memory was 86.0MB in the beginning and 123.7MB in the end (delta: 37.7MB). Free memory was 48.1MB in the beginning and 65.8MB in the end (delta: -17.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2021-11-23 16:55:26,507 INFO L158 Benchmark]: Boogie Procedure Inliner took 167.65ms. Allocated memory is still 123.7MB. Free memory was 65.8MB in the beginning and 58.6MB in the end (delta: 7.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 16:55:26,509 INFO L158 Benchmark]: Boogie Preprocessor took 130.82ms. Allocated memory is still 123.7MB. Free memory was 58.6MB in the beginning and 52.3MB in the end (delta: 6.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 16:55:26,510 INFO L158 Benchmark]: RCFGBuilder took 6651.01ms. Allocated memory was 123.7MB in the beginning and 331.4MB in the end (delta: 207.6MB). Free memory was 52.3MB in the beginning and 259.2MB in the end (delta: -206.9MB). Peak memory consumption was 115.1MB. Max. memory is 16.1GB. [2021-11-23 16:55:26,516 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 86.0MB. Free memory was 57.0MB in the beginning and 57.0MB in the end (delta: 25.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1343.61ms. Allocated memory was 86.0MB in the beginning and 123.7MB in the end (delta: 37.7MB). Free memory was 48.1MB in the beginning and 65.8MB in the end (delta: -17.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 167.65ms. Allocated memory is still 123.7MB. Free memory was 65.8MB in the beginning and 58.6MB in the end (delta: 7.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 130.82ms. Allocated memory is still 123.7MB. Free memory was 58.6MB in the beginning and 52.3MB in the end (delta: 6.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 6651.01ms. Allocated memory was 123.7MB in the beginning and 331.4MB in the end (delta: 207.6MB). Free memory was 52.3MB in the beginning and 259.2MB in the end (delta: -206.9MB). Peak memory consumption was 115.1MB. 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 16:55:26,591 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed5fef00-5af7-4221-a6b9-b62fce2f64ca/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed5fef00-5af7-4221-a6b9-b62fce2f64ca/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed5fef00-5af7-4221-a6b9-b62fce2f64ca/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_ed5fef00-5af7-4221-a6b9-b62fce2f64ca/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed5fef00-5af7-4221-a6b9-b62fce2f64ca/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-pthread/cs_queue-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed5fef00-5af7-4221-a6b9-b62fce2f64ca/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_ed5fef00-5af7-4221-a6b9-b62fce2f64ca/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 8159433f4ea1208e9ded3d30d98c55f64500f74c12655a237b65d69e94898ea5 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 16:55:29,463 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 16:55:29,467 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 16:55:29,539 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 16:55:29,539 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 16:55:29,545 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 16:55:29,547 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 16:55:29,553 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 16:55:29,557 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 16:55:29,567 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 16:55:29,569 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 16:55:29,571 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 16:55:29,571 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 16:55:29,574 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 16:55:29,577 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 16:55:29,582 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 16:55:29,584 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 16:55:29,585 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 16:55:29,587 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 16:55:29,596 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 16:55:29,599 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 16:55:29,601 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 16:55:29,606 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 16:55:29,607 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 16:55:29,611 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 16:55:29,612 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 16:55:29,612 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 16:55:29,614 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 16:55:29,614 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 16:55:29,616 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 16:55:29,616 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 16:55:29,617 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 16:55:29,619 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 16:55:29,620 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 16:55:29,621 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 16:55:29,622 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 16:55:29,623 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 16:55:29,623 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 16:55:29,623 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 16:55:29,624 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 16:55:29,625 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 16:55:29,626 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed5fef00-5af7-4221-a6b9-b62fce2f64ca/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 16:55:29,658 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 16:55:29,658 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 16:55:29,659 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 16:55:29,659 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 16:55:29,660 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 16:55:29,660 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 16:55:29,660 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 16:55:29,660 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 16:55:29,661 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 16:55:29,661 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 16:55:29,661 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 16:55:29,661 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 16:55:29,662 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 16:55:29,663 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 16:55:29,663 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 16:55:29,663 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 16:55:29,663 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 16:55:29,664 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 16:55:29,664 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 16:55:29,664 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 16:55:29,664 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 16:55:29,665 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 16:55:29,665 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 16:55:29,665 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 16:55:29,665 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 16:55:29,666 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 16:55:29,666 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 16:55:29,666 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 16:55:29,666 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 16:55:29,667 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:55:29,667 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 16:55:29,667 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 16:55:29,667 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 16:55:29,668 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 16:55:29,668 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 16:55:29,668 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 16:55:29,668 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 16:55:29,669 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 16:55:29,669 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_ed5fef00-5af7-4221-a6b9-b62fce2f64ca/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed5fef00-5af7-4221-a6b9-b62fce2f64ca/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8159433f4ea1208e9ded3d30d98c55f64500f74c12655a237b65d69e94898ea5 [2021-11-23 16:55:30,231 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 16:55:30,259 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 16:55:30,263 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 16:55:30,264 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 16:55:30,265 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 16:55:30,267 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed5fef00-5af7-4221-a6b9-b62fce2f64ca/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/seq-pthread/cs_queue-2.i [2021-11-23 16:55:30,352 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed5fef00-5af7-4221-a6b9-b62fce2f64ca/bin/utaipan-fb15Y9Yzbl/data/a7c6b6a77/52220d97a30d4d9eab1edcccd6249577/FLAGa0d4100fc [2021-11-23 16:55:31,149 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 16:55:31,154 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed5fef00-5af7-4221-a6b9-b62fce2f64ca/sv-benchmarks/c/seq-pthread/cs_queue-2.i [2021-11-23 16:55:31,191 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed5fef00-5af7-4221-a6b9-b62fce2f64ca/bin/utaipan-fb15Y9Yzbl/data/a7c6b6a77/52220d97a30d4d9eab1edcccd6249577/FLAGa0d4100fc [2021-11-23 16:55:31,312 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed5fef00-5af7-4221-a6b9-b62fce2f64ca/bin/utaipan-fb15Y9Yzbl/data/a7c6b6a77/52220d97a30d4d9eab1edcccd6249577 [2021-11-23 16:55:31,317 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 16:55:31,319 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 16:55:31,324 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 16:55:31,324 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 16:55:31,328 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 16:55:31,329 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:55:31" (1/1) ... [2021-11-23 16:55:31,331 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b06d2bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:55:31, skipping insertion in model container [2021-11-23 16:55:31,332 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:55:31" (1/1) ... [2021-11-23 16:55:31,358 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 16:55:31,451 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 16:55:32,211 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_ed5fef00-5af7-4221-a6b9-b62fce2f64ca/sv-benchmarks/c/seq-pthread/cs_queue-2.i[34556,34569] [2021-11-23 16:55:32,473 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:55:32,508 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 16:55:32,553 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_ed5fef00-5af7-4221-a6b9-b62fce2f64ca/sv-benchmarks/c/seq-pthread/cs_queue-2.i[34556,34569] [2021-11-23 16:55:32,726 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:55:32,842 INFO L208 MainTranslator]: Completed translation [2021-11-23 16:55:32,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:55:32 WrapperNode [2021-11-23 16:55:32,843 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 16:55:32,845 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 16:55:32,846 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 16:55:32,846 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 16:55:32,855 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:55:32" (1/1) ... [2021-11-23 16:55:32,937 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:55:32" (1/1) ... [2021-11-23 16:55:33,018 INFO L137 Inliner]: procedures = 252, calls = 533, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 1071 [2021-11-23 16:55:33,018 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 16:55:33,019 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 16:55:33,019 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 16:55:33,020 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 16:55:33,030 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:55:32" (1/1) ... [2021-11-23 16:55:33,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:55:32" (1/1) ... [2021-11-23 16:55:33,045 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:55:32" (1/1) ... [2021-11-23 16:55:33,045 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:55:32" (1/1) ... [2021-11-23 16:55:33,109 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:55:32" (1/1) ... [2021-11-23 16:55:33,120 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:55:32" (1/1) ... [2021-11-23 16:55:33,146 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:55:32" (1/1) ... [2021-11-23 16:55:33,160 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 16:55:33,161 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 16:55:33,162 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 16:55:33,162 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 16:55:33,163 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:55:32" (1/1) ... [2021-11-23 16:55:33,186 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:55:33,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed5fef00-5af7-4221-a6b9-b62fce2f64ca/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 16:55:33,228 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed5fef00-5af7-4221-a6b9-b62fce2f64ca/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 16:55:33,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed5fef00-5af7-4221-a6b9-b62fce2f64ca/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 16:55:33,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-23 16:55:33,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 16:55:33,303 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 16:55:33,303 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 16:55:33,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 16:55:33,304 INFO L130 BoogieDeclarations]: Found specification of procedure empty [2021-11-23 16:55:33,304 INFO L138 BoogieDeclarations]: Found implementation of procedure empty [2021-11-23 16:55:33,304 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_lock [2021-11-23 16:55:33,304 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_lock [2021-11-23 16:55:33,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 16:55:33,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-23 16:55:33,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 16:55:33,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 16:55:33,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 16:55:33,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 16:55:33,306 INFO L130 BoogieDeclarations]: Found specification of procedure enqueue [2021-11-23 16:55:33,306 INFO L138 BoogieDeclarations]: Found implementation of procedure enqueue [2021-11-23 16:55:33,306 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_unlock [2021-11-23 16:55:33,306 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_unlock [2021-11-23 16:55:33,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 16:55:33,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 16:55:33,307 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2021-11-23 16:55:33,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2021-11-23 16:55:33,307 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2021-11-23 16:55:33,308 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2021-11-23 16:55:33,308 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2021-11-23 16:55:33,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2021-11-23 16:55:33,308 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2021-11-23 16:55:33,308 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2021-11-23 16:55:33,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 16:55:33,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 16:55:33,742 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 16:55:33,744 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 16:55:33,833 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume !(0bv32 != ~zero_extendFrom8To32(~__CS_ret~0)); [2021-11-23 16:55:33,833 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !(0bv32 != ~zero_extendFrom8To32(~__CS_ret~0)); [2021-11-23 16:55:33,834 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume 0bv32 != ~zero_extendFrom8To32(~__CS_ret~0);#res := 0bv32; [2021-11-23 16:55:33,834 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume 0bv32 != ~zero_extendFrom8To32(~__CS_ret~0);#res := 0bv32; [2021-11-23 16:55:33,965 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !(0bv32 != ~zero_extendFrom8To32(~__CS_ret~0)); [2021-11-23 16:55:33,965 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume 0bv32 != ~zero_extendFrom8To32(~__CS_ret~0);#res := 0bv32; [2021-11-23 16:55:34,716 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L1097: SUMMARY for call __CS_cs(); srcloc: null [2021-11-23 16:55:34,717 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L1097-1: assume 0bv32 != ~zero_extendFrom8To32(~__CS_ret~0);t2_#res#1.base, t2_#res#1.offset := 0bv32, 0bv32; [2021-11-23 16:55:34,717 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L1097-1: assume !(0bv32 != ~zero_extendFrom8To32(~__CS_ret~0)); [2021-11-23 16:55:34,717 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L1132: SUMMARY for call __CS_cs(); srcloc: null [2021-11-23 16:55:34,717 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L1132-1: assume 0bv32 != ~zero_extendFrom8To32(~__CS_ret~0);main_thread_#res#1.base, main_thread_#res#1.offset := 0bv32, 0bv32;call ULTIMATE.dealloc(main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset);havoc main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset);havoc main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset; [2021-11-23 16:55:34,717 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L1132-1: assume !(0bv32 != ~zero_extendFrom8To32(~__CS_ret~0)); [2021-11-23 16:55:34,718 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L1075: SUMMARY for call __CS_cs(); srcloc: null [2021-11-23 16:55:34,718 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L1075-1: assume 0bv32 != ~zero_extendFrom8To32(~__CS_ret~0);t1_#res#1.base, t1_#res#1.offset := 0bv32, 0bv32; [2021-11-23 16:55:34,719 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L1075-1: assume !(0bv32 != ~zero_extendFrom8To32(~__CS_ret~0)); [2021-11-23 16:55:34,719 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume !(0bv32 != ~zero_extendFrom8To32(~__CS_ret~0)); [2021-11-23 16:55:34,719 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##86: assume 0bv32 != ~zero_extendFrom8To32(~__CS_ret~0);t2_#res#1.base, t2_#res#1.offset := 0bv32, 0bv32; [2021-11-23 16:55:34,720 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !(0bv32 != ~zero_extendFrom8To32(~__CS_ret~0)); [2021-11-23 16:55:34,720 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume 0bv32 != ~zero_extendFrom8To32(~__CS_ret~0);t2_#res#1.base, t2_#res#1.offset := 0bv32, 0bv32; [2021-11-23 16:55:34,721 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##79: assume !(0bv32 != ~zero_extendFrom8To32(~__CS_ret~0)); [2021-11-23 16:55:34,722 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##78: assume 0bv32 != ~zero_extendFrom8To32(~__CS_ret~0);dequeue_#res#1 := 0bv32; [2021-11-23 16:55:34,722 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##129: assume !(0bv32 != ~zero_extendFrom8To32(~__CS_ret~0)); [2021-11-23 16:55:34,722 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##128: assume 0bv32 != ~zero_extendFrom8To32(~__CS_ret~0);t1_#res#1.base, t1_#res#1.offset := 0bv32, 0bv32; [2021-11-23 16:55:34,722 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume !(0bv32 != ~zero_extendFrom8To32(~__CS_ret~0)); [2021-11-23 16:55:34,723 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume 0bv32 != ~zero_extendFrom8To32(~__CS_ret~0);main_thread_#res#1.base, main_thread_#res#1.offset := 0bv32, 0bv32;call ULTIMATE.dealloc(main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset);havoc main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset);havoc main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset; [2021-11-23 16:55:34,723 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##24: assume !(0bv32 != ~zero_extendFrom8To32(~__CS_ret~0)); [2021-11-23 16:55:34,724 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##23: assume 0bv32 != ~zero_extendFrom8To32(~__CS_ret~0);main_thread_#res#1.base, main_thread_#res#1.offset := 0bv32, 0bv32;call ULTIMATE.dealloc(main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset);havoc main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset);havoc main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset; [2021-11-23 16:55:34,724 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##166: assume 0bv32 != ~zero_extendFrom8To32(~__CS_ret~0);t1_#res#1.base, t1_#res#1.offset := 0bv32, 0bv32; [2021-11-23 16:55:34,724 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##169: assume !(0bv32 != ~zero_extendFrom8To32(~__CS_ret~0)); [2021-11-23 16:55:34,724 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##168: assume 0bv32 != ~zero_extendFrom8To32(~__CS_ret~0);t1_#res#1.base, t1_#res#1.offset := 0bv32, 0bv32; [2021-11-23 16:55:34,725 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##167: assume !(0bv32 != ~zero_extendFrom8To32(~__CS_ret~0)); [2021-11-23 16:55:34,725 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##104: assume 0bv32 != ~zero_extendFrom8To32(~__CS_ret~0);t2_#res#1.base, t2_#res#1.offset := 0bv32, 0bv32; [2021-11-23 16:55:34,725 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##105: assume !(0bv32 != ~zero_extendFrom8To32(~__CS_ret~0)); [2021-11-23 16:55:34,725 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##118: assume !(0bv32 != ~zero_extendFrom8To32(~__CS_ret~0)); [2021-11-23 16:55:34,726 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##117: assume 0bv32 != ~zero_extendFrom8To32(~__CS_ret~0);t1_#res#1.base, t1_#res#1.offset := 0bv32, 0bv32; [2021-11-23 16:55:40,520 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 16:55:40,534 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 16:55:40,534 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 16:55:40,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:55:40 BoogieIcfgContainer [2021-11-23 16:55:40,538 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 16:55:40,540 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 16:55:40,540 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 16:55:40,544 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 16:55:40,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:55:31" (1/3) ... [2021-11-23 16:55:40,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@209eeabd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:55:40, skipping insertion in model container [2021-11-23 16:55:40,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:55:32" (2/3) ... [2021-11-23 16:55:40,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@209eeabd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:55:40, skipping insertion in model container [2021-11-23 16:55:40,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:55:40" (3/3) ... [2021-11-23 16:55:40,558 INFO L111 eAbstractionObserver]: Analyzing ICFG cs_queue-2.i [2021-11-23 16:55:40,569 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 16:55:40,569 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 16:55:40,641 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 16:55:40,650 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 [2021-11-23 16:55:40,650 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 16:55:40,684 INFO L276 IsEmpty]: Start isEmpty. Operand has 350 states, 203 states have (on average 1.477832512315271) internal successors, (300), 205 states have internal predecessors, (300), 136 states have call successors, (136), 9 states have call predecessors, (136), 9 states have return successors, (136), 136 states have call predecessors, (136), 136 states have call successors, (136) [2021-11-23 16:55:40,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2021-11-23 16:55:40,741 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 16:55:40,742 INFO L514 BasicCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 16:55:40,743 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 16:55:40,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 16:55:40,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1705444429, now seen corresponding path program 1 times [2021-11-23 16:55:40,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 16:55:40,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1178980606] [2021-11-23 16:55:40,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 16:55:40,772 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 16:55:40,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed5fef00-5af7-4221-a6b9-b62fce2f64ca/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 16:55:40,776 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed5fef00-5af7-4221-a6b9-b62fce2f64ca/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 16:55:40,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed5fef00-5af7-4221-a6b9-b62fce2f64ca/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process