./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-pthread/cs_queue-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ee17f-e701-4b25-ad95-d763ed0b29d4/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ee17f-e701-4b25-ad95-d763ed0b29d4/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ee17f-e701-4b25-ad95-d763ed0b29d4/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ee17f-e701-4b25-ad95-d763ed0b29d4/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-pthread/cs_queue-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ee17f-e701-4b25-ad95-d763ed0b29d4/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ee17f-e701-4b25-ad95-d763ed0b29d4/bin/utaipan-ByfvJB40ur --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 38d92478d67c3996e3815aaa6d0075347cfc456da7f20d1b1bb733d11593b6cf --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 23:16:24,427 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:16:24,429 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:16:24,464 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:16:24,465 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:16:24,466 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:16:24,467 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:16:24,469 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:16:24,470 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:16:24,472 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:16:24,473 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:16:24,474 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:16:24,474 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:16:24,475 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:16:24,476 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:16:24,478 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:16:24,479 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:16:24,480 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:16:24,481 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:16:24,483 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:16:24,485 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:16:24,488 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:16:24,493 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:16:24,494 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:16:24,497 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:16:24,504 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:16:24,505 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:16:24,506 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:16:24,506 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:16:24,507 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:16:24,508 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:16:24,508 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:16:24,509 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:16:24,510 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:16:24,513 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:16:24,514 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:16:24,515 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:16:24,516 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:16:24,517 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:16:24,518 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:16:24,520 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:16:24,521 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ee17f-e701-4b25-ad95-d763ed0b29d4/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-25 23:16:24,540 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:16:24,540 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:16:24,541 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:16:24,541 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:16:24,555 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:16:24,556 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:16:24,556 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:16:24,556 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:16:24,556 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:16:24,557 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:16:24,557 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:16:24,557 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:16:24,557 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:16:24,558 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:16:24,558 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:16:24,560 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:16:24,561 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:16:24,561 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:16:24,562 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:16:24,562 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 23:16:24,562 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:16:24,563 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 23:16:24,563 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:16:24,563 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:16:24,563 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:16:24,564 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:16:24,564 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 23:16:24,564 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:16:24,565 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:16:24,565 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:16:24,565 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:16:24,566 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:16:24,566 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:16:24,566 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:16:24,567 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:16:24,567 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:16:24,567 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:16:24,567 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:16:24,568 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:16:24,568 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:16:24,568 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:16:24,569 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_ca6ee17f-e701-4b25-ad95-d763ed0b29d4/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ee17f-e701-4b25-ad95-d763ed0b29d4/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 38d92478d67c3996e3815aaa6d0075347cfc456da7f20d1b1bb733d11593b6cf [2022-11-25 23:16:24,877 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:16:24,912 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:16:24,914 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:16:24,916 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:16:24,916 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:16:24,918 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ee17f-e701-4b25-ad95-d763ed0b29d4/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/seq-pthread/cs_queue-1.i [2022-11-25 23:16:27,928 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:16:28,275 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:16:28,291 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ee17f-e701-4b25-ad95-d763ed0b29d4/sv-benchmarks/c/seq-pthread/cs_queue-1.i [2022-11-25 23:16:28,316 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ee17f-e701-4b25-ad95-d763ed0b29d4/bin/utaipan-ByfvJB40ur/data/713cfdc97/43df3149d8244006ae0bb89c390e3feb/FLAG827bf22f0 [2022-11-25 23:16:28,335 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ee17f-e701-4b25-ad95-d763ed0b29d4/bin/utaipan-ByfvJB40ur/data/713cfdc97/43df3149d8244006ae0bb89c390e3feb [2022-11-25 23:16:28,341 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:16:28,342 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:16:28,346 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:16:28,346 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:16:28,350 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:16:28,351 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:16:28" (1/1) ... [2022-11-25 23:16:28,352 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@768274aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:16:28, skipping insertion in model container [2022-11-25 23:16:28,352 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:16:28" (1/1) ... [2022-11-25 23:16:28,360 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:16:28,422 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:16:28,959 WARN L237 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_ca6ee17f-e701-4b25-ad95-d763ed0b29d4/sv-benchmarks/c/seq-pthread/cs_queue-1.i[34744,34757] [2022-11-25 23:16:29,125 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:16:29,141 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:16:29,177 WARN L237 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_ca6ee17f-e701-4b25-ad95-d763ed0b29d4/sv-benchmarks/c/seq-pthread/cs_queue-1.i[34744,34757] [2022-11-25 23:16:29,326 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:16:29,403 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:16:29,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:16:29 WrapperNode [2022-11-25 23:16:29,404 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:16:29,406 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:16:29,406 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:16:29,407 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:16:29,415 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:16:29" (1/1) ... [2022-11-25 23:16:29,487 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:16:29" (1/1) ... [2022-11-25 23:16:29,538 INFO L138 Inliner]: procedures = 251, calls = 534, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 1154 [2022-11-25 23:16:29,538 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:16:29,539 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:16:29,539 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:16:29,539 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:16:29,549 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:16:29" (1/1) ... [2022-11-25 23:16:29,549 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:16:29" (1/1) ... [2022-11-25 23:16:29,556 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:16:29" (1/1) ... [2022-11-25 23:16:29,557 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:16:29" (1/1) ... [2022-11-25 23:16:29,671 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:16:29" (1/1) ... [2022-11-25 23:16:29,679 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:16:29" (1/1) ... [2022-11-25 23:16:29,683 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:16:29" (1/1) ... [2022-11-25 23:16:29,687 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:16:29" (1/1) ... [2022-11-25 23:16:29,695 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:16:29,696 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:16:29,697 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:16:29,697 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:16:29,699 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:16:29" (1/1) ... [2022-11-25 23:16:29,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:16:29,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ee17f-e701-4b25-ad95-d763ed0b29d4/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:16:29,741 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ee17f-e701-4b25-ad95-d763ed0b29d4/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:16:29,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6ee17f-e701-4b25-ad95-d763ed0b29d4/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:16:29,795 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-25 23:16:29,796 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-25 23:16:29,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:16:29,797 INFO L130 BoogieDeclarations]: Found specification of procedure empty [2022-11-25 23:16:29,797 INFO L138 BoogieDeclarations]: Found implementation of procedure empty [2022-11-25 23:16:29,797 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_lock [2022-11-25 23:16:29,798 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_lock [2022-11-25 23:16:29,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 23:16:29,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:16:29,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 23:16:29,798 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_unlock [2022-11-25 23:16:29,798 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_unlock [2022-11-25 23:16:29,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 23:16:29,799 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-25 23:16:29,799 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-25 23:16:29,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 23:16:29,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:16:29,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 23:16:29,800 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2022-11-25 23:16:29,800 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2022-11-25 23:16:29,801 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2022-11-25 23:16:29,801 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2022-11-25 23:16:29,802 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2022-11-25 23:16:29,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2022-11-25 23:16:29,803 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2022-11-25 23:16:29,803 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2022-11-25 23:16:29,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:16:29,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:16:29,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:16:30,031 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:16:30,033 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:16:30,125 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume !(0 != ~__CS_ret~0 % 256); [2022-11-25 23:16:30,125 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !(0 != ~__CS_ret~0 % 256); [2022-11-25 23:16:30,125 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume 0 != ~__CS_ret~0 % 256;#res := 0; [2022-11-25 23:16:30,125 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume 0 != ~__CS_ret~0 % 256;#res := 0; [2022-11-25 23:16:30,692 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L1093: SUMMARY for call __CS_cs(); srcloc: null [2022-11-25 23:16:30,693 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L1093-1: assume 0 != ~__CS_ret~0 % 256;t2_#res#1.base, t2_#res#1.offset := 0, 0; [2022-11-25 23:16:30,693 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L1093-1: assume !(0 != ~__CS_ret~0 % 256); [2022-11-25 23:16:30,693 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L1129: SUMMARY for call __CS_cs(); srcloc: null [2022-11-25 23:16:30,693 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L1129-1: 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; [2022-11-25 23:16:30,693 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L1129-1: assume !(0 != ~__CS_ret~0 % 256); [2022-11-25 23:16:30,694 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume 0 != ~__CS_ret~0 % 256;t2_#res#1.base, t2_#res#1.offset := 0, 0; [2022-11-25 23:16:30,694 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !(0 != ~__CS_ret~0 % 256); [2022-11-25 23:16:30,694 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##83: assume !(0 != ~__CS_ret~0 % 256); [2022-11-25 23:16:30,694 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##82: assume 0 != ~__CS_ret~0 % 256;dequeue_#res#1 := 0; [2022-11-25 23:16:30,694 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##89: assume !(0 != ~__CS_ret~0 % 256); [2022-11-25 23:16:30,694 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume 0 != ~__CS_ret~0 % 256;t2_#res#1.base, t2_#res#1.offset := 0, 0; [2022-11-25 23:16:30,695 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume !(0 != ~__CS_ret~0 % 256); [2022-11-25 23:16:30,695 INFO L769 $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; [2022-11-25 23:16:30,695 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##24: assume !(0 != ~__CS_ret~0 % 256); [2022-11-25 23:16:30,695 INFO L769 $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; [2022-11-25 23:16:30,695 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##149: assume 0 != ~__CS_ret~0 % 256;enqueue_#res#1 := 0; [2022-11-25 23:16:30,696 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##150: assume !(0 != ~__CS_ret~0 % 256); [2022-11-25 23:16:30,696 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##166: assume 0 != ~__CS_ret~0 % 256;t1_#res#1.base, t1_#res#1.offset := 0, 0; [2022-11-25 23:16:30,696 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##167: assume !(0 != ~__CS_ret~0 % 256); [2022-11-25 23:16:30,696 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##109: assume 0 != ~__CS_ret~0 % 256;t2_#res#1.base, t2_#res#1.offset := 0, 0; [2022-11-25 23:16:30,696 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##110: assume !(0 != ~__CS_ret~0 % 256); [2022-11-25 23:16:35,353 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:16:35,570 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:16:35,570 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-25 23:16:35,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:16:35 BoogieIcfgContainer [2022-11-25 23:16:35,577 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:16:35,581 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:16:35,581 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:16:35,584 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:16:35,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:16:28" (1/3) ... [2022-11-25 23:16:35,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77df291f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:16:35, skipping insertion in model container [2022-11-25 23:16:35,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:16:29" (2/3) ... [2022-11-25 23:16:35,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77df291f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:16:35, skipping insertion in model container [2022-11-25 23:16:35,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:16:35" (3/3) ... [2022-11-25 23:16:35,590 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_queue-1.i [2022-11-25 23:16:35,643 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:16:35,643 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 23:16:35,724 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:16:35,732 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@57469a99, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:16:35,733 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 23:16:35,739 INFO L276 IsEmpty]: Start isEmpty. Operand has 316 states, 173 states have (on average 1.416184971098266) internal successors, (245), 175 states have internal predecessors, (245), 132 states have call successors, (132), 9 states have call predecessors, (132), 9 states have return successors, (132), 132 states have call predecessors, (132), 132 states have call successors, (132) [2022-11-25 23:16:35,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2022-11-25 23:16:35,787 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:16:35,788 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1] [2022-11-25 23:16:35,788 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:16:35,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:16:35,795 INFO L85 PathProgramCache]: Analyzing trace with hash 590775463, now seen corresponding path program 1 times [2022-11-25 23:16:35,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:16:35,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670343742] [2022-11-25 23:16:35,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:16:35,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms