./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c --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_2a553fcd-ff40-464d-bf5f-5490cf840c9f/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a553fcd-ff40-464d-bf5f-5490cf840c9f/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_2a553fcd-ff40-464d-bf5f-5490cf840c9f/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a553fcd-ff40-464d-bf5f-5490cf840c9f/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a553fcd-ff40-464d-bf5f-5490cf840c9f/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_2a553fcd-ff40-464d-bf5f-5490cf840c9f/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 f1e7a931f8678a52ab26f5a1b74bb59e33ef4ed9c03430a4d28342e1a824b13d --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 16:44:50,470 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 16:44:50,474 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 16:44:50,523 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 16:44:50,524 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 16:44:50,527 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 16:44:50,529 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 16:44:50,533 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 16:44:50,536 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 16:44:50,541 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 16:44:50,542 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 16:44:50,544 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 16:44:50,545 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 16:44:50,548 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 16:44:50,551 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 16:44:50,555 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 16:44:50,556 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 16:44:50,557 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 16:44:50,559 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 16:44:50,561 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 16:44:50,563 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 16:44:50,564 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 16:44:50,566 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 16:44:50,566 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 16:44:50,570 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 16:44:50,570 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 16:44:50,571 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 16:44:50,572 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 16:44:50,572 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 16:44:50,573 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 16:44:50,574 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 16:44:50,575 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 16:44:50,575 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 16:44:50,576 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 16:44:50,577 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 16:44:50,578 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 16:44:50,579 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 16:44:50,579 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 16:44:50,579 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 16:44:50,580 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 16:44:50,581 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 16:44:50,582 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a553fcd-ff40-464d-bf5f-5490cf840c9f/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 16:44:50,626 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 16:44:50,626 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 16:44:50,627 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 16:44:50,627 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 16:44:50,634 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 16:44:50,635 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 16:44:50,635 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 16:44:50,635 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 16:44:50,635 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 16:44:50,636 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 16:44:50,637 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 16:44:50,637 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 16:44:50,637 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 16:44:50,637 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 16:44:50,637 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 16:44:50,638 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 16:44:50,638 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 16:44:50,638 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 16:44:50,639 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 16:44:50,639 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 16:44:50,639 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 16:44:50,640 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 16:44:50,640 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 16:44:50,640 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 16:44:50,640 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 16:44:50,640 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 16:44:50,642 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 16:44:50,642 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 16:44:50,642 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 16:44:50,643 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 16:44:50,643 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 16:44:50,643 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 16:44:50,644 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:44:50,644 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 16:44:50,644 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 16:44:50,644 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 16:44:50,644 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 16:44:50,645 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 16:44:50,645 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 16:44:50,645 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 16:44:50,645 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 16:44:50,645 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_2a553fcd-ff40-464d-bf5f-5490cf840c9f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a553fcd-ff40-464d-bf5f-5490cf840c9f/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1e7a931f8678a52ab26f5a1b74bb59e33ef4ed9c03430a4d28342e1a824b13d [2021-11-23 16:44:50,942 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 16:44:50,982 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 16:44:50,984 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 16:44:50,985 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 16:44:50,986 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 16:44:50,988 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a553fcd-ff40-464d-bf5f-5490cf840c9f/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c [2021-11-23 16:44:51,050 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a553fcd-ff40-464d-bf5f-5490cf840c9f/bin/utaipan-fb15Y9Yzbl/data/e1b2e8572/9df123c48fb44f3e80d5c206134f85e5/FLAGb5cc411a4 [2021-11-23 16:44:51,793 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 16:44:51,794 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a553fcd-ff40-464d-bf5f-5490cf840c9f/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c [2021-11-23 16:44:51,836 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a553fcd-ff40-464d-bf5f-5490cf840c9f/bin/utaipan-fb15Y9Yzbl/data/e1b2e8572/9df123c48fb44f3e80d5c206134f85e5/FLAGb5cc411a4 [2021-11-23 16:44:51,868 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a553fcd-ff40-464d-bf5f-5490cf840c9f/bin/utaipan-fb15Y9Yzbl/data/e1b2e8572/9df123c48fb44f3e80d5c206134f85e5 [2021-11-23 16:44:51,870 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 16:44:51,872 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 16:44:51,874 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 16:44:51,874 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 16:44:51,877 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 16:44:51,878 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:44:51" (1/1) ... [2021-11-23 16:44:51,879 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59f22420 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:44:51, skipping insertion in model container [2021-11-23 16:44:51,879 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:44:51" (1/1) ... [2021-11-23 16:44:51,886 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 16:44:52,049 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 16:44:52,219 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_2a553fcd-ff40-464d-bf5f-5490cf840c9f/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c[1870,1883] [2021-11-23 16:44:52,762 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:44:52,779 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 16:44:52,792 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_2a553fcd-ff40-464d-bf5f-5490cf840c9f/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c[1870,1883] [2021-11-23 16:44:53,070 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:44:53,115 INFO L208 MainTranslator]: Completed translation [2021-11-23 16:44:53,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:44:53 WrapperNode [2021-11-23 16:44:53,116 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 16:44:53,117 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 16:44:53,117 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 16:44:53,118 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 16:44:53,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:44:53" (1/1) ... [2021-11-23 16:44:53,210 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:44:53" (1/1) ... [2021-11-23 16:44:53,510 INFO L137 Inliner]: procedures = 99, calls = 2725, calls flagged for inlining = 34, calls inlined = 34, statements flattened = 8221 [2021-11-23 16:44:53,512 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 16:44:53,513 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 16:44:53,513 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 16:44:53,513 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 16:44:53,523 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:44:53" (1/1) ... [2021-11-23 16:44:53,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:44:53" (1/1) ... [2021-11-23 16:44:53,585 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:44:53" (1/1) ... [2021-11-23 16:44:53,589 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:44:53" (1/1) ... [2021-11-23 16:44:53,850 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:44:53" (1/1) ... [2021-11-23 16:44:53,902 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:44:53" (1/1) ... [2021-11-23 16:44:53,938 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:44:53" (1/1) ... [2021-11-23 16:44:53,981 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 16:44:53,982 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 16:44:53,982 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 16:44:53,983 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 16:44:53,984 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:44:53" (1/1) ... [2021-11-23 16:44:53,993 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:44:54,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a553fcd-ff40-464d-bf5f-5490cf840c9f/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 16:44:54,016 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a553fcd-ff40-464d-bf5f-5490cf840c9f/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 16:44:54,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a553fcd-ff40-464d-bf5f-5490cf840c9f/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 16:44:54,065 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2021-11-23 16:44:54,065 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2021-11-23 16:44:54,065 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2021-11-23 16:44:54,065 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2021-11-23 16:44:54,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 16:44:54,066 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2021-11-23 16:44:54,066 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2021-11-23 16:44:54,066 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2021-11-23 16:44:54,066 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2021-11-23 16:44:54,066 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2021-11-23 16:44:54,066 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2021-11-23 16:44:54,066 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2021-11-23 16:44:54,067 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2021-11-23 16:44:54,067 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2021-11-23 16:44:54,067 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2021-11-23 16:44:54,067 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2021-11-23 16:44:54,067 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2021-11-23 16:44:54,067 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2021-11-23 16:44:54,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2021-11-23 16:44:54,068 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2021-11-23 16:44:54,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2021-11-23 16:44:54,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 16:44:54,068 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2021-11-23 16:44:54,068 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2021-11-23 16:44:54,069 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2021-11-23 16:44:54,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2021-11-23 16:44:54,069 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2021-11-23 16:44:54,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2021-11-23 16:44:54,070 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2021-11-23 16:44:54,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2021-11-23 16:44:54,070 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2021-11-23 16:44:54,070 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2021-11-23 16:44:54,070 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2021-11-23 16:44:54,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2021-11-23 16:44:54,071 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2021-11-23 16:44:54,071 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2021-11-23 16:44:54,071 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 16:44:54,071 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2021-11-23 16:44:54,071 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2021-11-23 16:44:54,071 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2021-11-23 16:44:54,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2021-11-23 16:44:54,072 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2021-11-23 16:44:54,072 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2021-11-23 16:44:54,072 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2021-11-23 16:44:54,073 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2021-11-23 16:44:54,073 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2021-11-23 16:44:54,073 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2021-11-23 16:44:54,074 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2021-11-23 16:44:54,075 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2021-11-23 16:44:54,075 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2021-11-23 16:44:54,075 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2021-11-23 16:44:54,076 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2021-11-23 16:44:54,076 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2021-11-23 16:44:54,076 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2021-11-23 16:44:54,076 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2021-11-23 16:44:54,076 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2021-11-23 16:44:54,076 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2021-11-23 16:44:54,077 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2021-11-23 16:44:54,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2021-11-23 16:44:54,077 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2021-11-23 16:44:54,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2021-11-23 16:44:54,077 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2021-11-23 16:44:54,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2021-11-23 16:44:54,077 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2021-11-23 16:44:54,078 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2021-11-23 16:44:54,078 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2021-11-23 16:44:54,078 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2021-11-23 16:44:54,078 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2021-11-23 16:44:54,078 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2021-11-23 16:44:54,078 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2021-11-23 16:44:54,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2021-11-23 16:44:54,079 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2021-11-23 16:44:54,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2021-11-23 16:44:54,080 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2021-11-23 16:44:54,080 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2021-11-23 16:44:54,080 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2021-11-23 16:44:54,080 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2021-11-23 16:44:54,080 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2021-11-23 16:44:54,081 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2021-11-23 16:44:54,081 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2021-11-23 16:44:54,081 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2021-11-23 16:44:54,081 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2021-11-23 16:44:54,081 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2021-11-23 16:44:54,082 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2021-11-23 16:44:54,082 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2021-11-23 16:44:54,082 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2021-11-23 16:44:54,082 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2021-11-23 16:44:54,083 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2021-11-23 16:44:54,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2021-11-23 16:44:54,085 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_nxtcolorsensor_mode [2021-11-23 16:44:54,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_nxtcolorsensor_mode [2021-11-23 16:44:54,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 16:44:54,085 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2021-11-23 16:44:54,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2021-11-23 16:44:54,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 16:44:54,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 16:44:54,803 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 16:44:54,806 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 16:45:11,236 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 16:45:11,421 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 16:45:11,426 INFO L158 Benchmark]: Toolchain (without parser) took 19553.52ms. Allocated memory was 96.5MB in the beginning and 385.9MB in the end (delta: 289.4MB). Free memory was 52.6MB in the beginning and 143.4MB in the end (delta: -90.8MB). Peak memory consumption was 202.2MB. Max. memory is 16.1GB. [2021-11-23 16:45:11,427 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 96.5MB. Free memory is still 74.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:45:11,428 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1242.58ms. Allocated memory was 96.5MB in the beginning and 138.4MB in the end (delta: 41.9MB). Free memory was 52.4MB in the beginning and 93.0MB in the end (delta: -40.6MB). Peak memory consumption was 29.7MB. Max. memory is 16.1GB. [2021-11-23 16:45:11,429 INFO L158 Benchmark]: Boogie Procedure Inliner took 394.96ms. Allocated memory is still 138.4MB. Free memory was 93.0MB in the beginning and 78.6MB in the end (delta: 14.4MB). Peak memory consumption was 49.5MB. Max. memory is 16.1GB. [2021-11-23 16:45:11,430 INFO L158 Benchmark]: Boogie Preprocessor took 468.58ms. Allocated memory is still 138.4MB. Free memory was 78.6MB in the beginning and 60.6MB in the end (delta: 18.0MB). Peak memory consumption was 35.4MB. Max. memory is 16.1GB. [2021-11-23 16:45:11,431 INFO L158 Benchmark]: RCFGBuilder took 17442.28ms. Allocated memory was 138.4MB in the beginning and 385.9MB in the end (delta: 247.5MB). Free memory was 60.6MB in the beginning and 143.4MB in the end (delta: -82.8MB). Peak memory consumption was 165.2MB. Max. memory is 16.1GB. [2021-11-23 16:45:11,435 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 96.5MB. Free memory is still 74.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1242.58ms. Allocated memory was 96.5MB in the beginning and 138.4MB in the end (delta: 41.9MB). Free memory was 52.4MB in the beginning and 93.0MB in the end (delta: -40.6MB). Peak memory consumption was 29.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 394.96ms. Allocated memory is still 138.4MB. Free memory was 93.0MB in the beginning and 78.6MB in the end (delta: 14.4MB). Peak memory consumption was 49.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 468.58ms. Allocated memory is still 138.4MB. Free memory was 78.6MB in the beginning and 60.6MB in the end (delta: 18.0MB). Peak memory consumption was 35.4MB. Max. memory is 16.1GB. * RCFGBuilder took 17442.28ms. Allocated memory was 138.4MB in the beginning and 385.9MB in the end (delta: 247.5MB). Free memory was 60.6MB in the beginning and 143.4MB in the end (delta: -82.8MB). Peak memory consumption was 165.2MB. 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 16:45:11,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a553fcd-ff40-464d-bf5f-5490cf840c9f/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_2a553fcd-ff40-464d-bf5f-5490cf840c9f/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a553fcd-ff40-464d-bf5f-5490cf840c9f/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_2a553fcd-ff40-464d-bf5f-5490cf840c9f/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a553fcd-ff40-464d-bf5f-5490cf840c9f/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a553fcd-ff40-464d-bf5f-5490cf840c9f/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_2a553fcd-ff40-464d-bf5f-5490cf840c9f/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 f1e7a931f8678a52ab26f5a1b74bb59e33ef4ed9c03430a4d28342e1a824b13d --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 16:45:14,045 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 16:45:14,049 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 16:45:14,103 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 16:45:14,104 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 16:45:14,108 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 16:45:14,110 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 16:45:14,114 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 16:45:14,118 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 16:45:14,126 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 16:45:14,128 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 16:45:14,130 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 16:45:14,130 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 16:45:14,133 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 16:45:14,135 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 16:45:14,140 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 16:45:14,142 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 16:45:14,143 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 16:45:14,145 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 16:45:14,153 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 16:45:14,155 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 16:45:14,156 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 16:45:14,160 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 16:45:14,161 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 16:45:14,171 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 16:45:14,172 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 16:45:14,172 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 16:45:14,175 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 16:45:14,175 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 16:45:14,177 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 16:45:14,177 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 16:45:14,178 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 16:45:14,181 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 16:45:14,182 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 16:45:14,184 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 16:45:14,184 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 16:45:14,185 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 16:45:14,185 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 16:45:14,186 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 16:45:14,188 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 16:45:14,189 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 16:45:14,190 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a553fcd-ff40-464d-bf5f-5490cf840c9f/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 16:45:14,233 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 16:45:14,233 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 16:45:14,234 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 16:45:14,235 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 16:45:14,236 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 16:45:14,236 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 16:45:14,236 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 16:45:14,237 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 16:45:14,237 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 16:45:14,237 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 16:45:14,239 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 16:45:14,239 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 16:45:14,241 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 16:45:14,241 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 16:45:14,241 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 16:45:14,242 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 16:45:14,242 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 16:45:14,242 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 16:45:14,243 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 16:45:14,243 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 16:45:14,243 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 16:45:14,244 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 16:45:14,244 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 16:45:14,244 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 16:45:14,245 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 16:45:14,245 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 16:45:14,245 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 16:45:14,246 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 16:45:14,246 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 16:45:14,246 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:45:14,247 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 16:45:14,247 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 16:45:14,248 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 16:45:14,248 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 16:45:14,248 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 16:45:14,249 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 16:45:14,249 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 16:45:14,250 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 16:45:14,250 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_2a553fcd-ff40-464d-bf5f-5490cf840c9f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a553fcd-ff40-464d-bf5f-5490cf840c9f/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1e7a931f8678a52ab26f5a1b74bb59e33ef4ed9c03430a4d28342e1a824b13d [2021-11-23 16:45:14,657 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 16:45:14,683 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 16:45:14,686 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 16:45:14,687 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 16:45:14,687 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 16:45:14,689 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a553fcd-ff40-464d-bf5f-5490cf840c9f/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c [2021-11-23 16:45:14,758 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a553fcd-ff40-464d-bf5f-5490cf840c9f/bin/utaipan-fb15Y9Yzbl/data/01aa3f4bf/01569d3ce98b489898a42d1a38697cea/FLAG3e76485dc [2021-11-23 16:45:15,498 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 16:45:15,499 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a553fcd-ff40-464d-bf5f-5490cf840c9f/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c [2021-11-23 16:45:15,523 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a553fcd-ff40-464d-bf5f-5490cf840c9f/bin/utaipan-fb15Y9Yzbl/data/01aa3f4bf/01569d3ce98b489898a42d1a38697cea/FLAG3e76485dc [2021-11-23 16:45:15,634 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a553fcd-ff40-464d-bf5f-5490cf840c9f/bin/utaipan-fb15Y9Yzbl/data/01aa3f4bf/01569d3ce98b489898a42d1a38697cea [2021-11-23 16:45:15,636 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 16:45:15,638 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 16:45:15,642 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 16:45:15,642 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 16:45:15,650 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 16:45:15,651 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:45:15" (1/1) ... [2021-11-23 16:45:15,653 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69663e60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:15, skipping insertion in model container [2021-11-23 16:45:15,654 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:45:15" (1/1) ... [2021-11-23 16:45:15,661 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 16:45:15,777 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 16:45:16,019 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_2a553fcd-ff40-464d-bf5f-5490cf840c9f/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c[1870,1883] [2021-11-23 16:45:16,723 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:45:16,744 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 16:45:16,771 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_2a553fcd-ff40-464d-bf5f-5490cf840c9f/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c[1870,1883] [2021-11-23 16:45:17,108 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:45:17,183 INFO L208 MainTranslator]: Completed translation [2021-11-23 16:45:17,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:17 WrapperNode [2021-11-23 16:45:17,184 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 16:45:17,185 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 16:45:17,185 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 16:45:17,185 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 16:45:17,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:17" (1/1) ... [2021-11-23 16:45:17,339 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:17" (1/1) ... [2021-11-23 16:45:17,644 INFO L137 Inliner]: procedures = 105, calls = 2725, calls flagged for inlining = 34, calls inlined = 34, statements flattened = 8133 [2021-11-23 16:45:17,645 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 16:45:17,646 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 16:45:17,646 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 16:45:17,646 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 16:45:17,655 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:17" (1/1) ... [2021-11-23 16:45:17,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:17" (1/1) ... [2021-11-23 16:45:17,792 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:17" (1/1) ... [2021-11-23 16:45:17,792 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:17" (1/1) ... [2021-11-23 16:45:17,998 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:17" (1/1) ... [2021-11-23 16:45:18,101 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:17" (1/1) ... [2021-11-23 16:45:18,119 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:17" (1/1) ... [2021-11-23 16:45:18,166 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 16:45:18,167 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 16:45:18,167 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 16:45:18,168 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 16:45:18,168 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:17" (1/1) ... [2021-11-23 16:45:18,175 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:45:18,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a553fcd-ff40-464d-bf5f-5490cf840c9f/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 16:45:18,200 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a553fcd-ff40-464d-bf5f-5490cf840c9f/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 16:45:18,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a553fcd-ff40-464d-bf5f-5490cf840c9f/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 16:45:18,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-23 16:45:18,256 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2021-11-23 16:45:18,256 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2021-11-23 16:45:18,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 16:45:18,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-23 16:45:18,256 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2021-11-23 16:45:18,256 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2021-11-23 16:45:18,257 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2021-11-23 16:45:18,257 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2021-11-23 16:45:18,257 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2021-11-23 16:45:18,257 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2021-11-23 16:45:18,257 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2021-11-23 16:45:18,257 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2021-11-23 16:45:18,257 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2021-11-23 16:45:18,257 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2021-11-23 16:45:18,258 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2021-11-23 16:45:18,258 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2021-11-23 16:45:18,258 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2021-11-23 16:45:18,258 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2021-11-23 16:45:18,258 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2021-11-23 16:45:18,258 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2021-11-23 16:45:18,258 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2021-11-23 16:45:18,258 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2021-11-23 16:45:18,259 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2021-11-23 16:45:18,259 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2021-11-23 16:45:18,259 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2021-11-23 16:45:18,259 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2021-11-23 16:45:18,259 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2021-11-23 16:45:18,259 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2021-11-23 16:45:18,259 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2021-11-23 16:45:18,259 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2021-11-23 16:45:18,260 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2021-11-23 16:45:18,260 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2021-11-23 16:45:18,260 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2021-11-23 16:45:18,260 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2021-11-23 16:45:18,260 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2021-11-23 16:45:18,261 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2021-11-23 16:45:18,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 16:45:18,261 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2021-11-23 16:45:18,261 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2021-11-23 16:45:18,261 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2021-11-23 16:45:18,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2021-11-23 16:45:18,262 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2021-11-23 16:45:18,262 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2021-11-23 16:45:18,262 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2021-11-23 16:45:18,262 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2021-11-23 16:45:18,262 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2021-11-23 16:45:18,262 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2021-11-23 16:45:18,263 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2021-11-23 16:45:18,263 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2021-11-23 16:45:18,264 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2021-11-23 16:45:18,264 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2021-11-23 16:45:18,265 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2021-11-23 16:45:18,265 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2021-11-23 16:45:18,265 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2021-11-23 16:45:18,265 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2021-11-23 16:45:18,265 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2021-11-23 16:45:18,265 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2021-11-23 16:45:18,265 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2021-11-23 16:45:18,266 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2021-11-23 16:45:18,266 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2021-11-23 16:45:18,266 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2021-11-23 16:45:18,266 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2021-11-23 16:45:18,266 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2021-11-23 16:45:18,266 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2021-11-23 16:45:18,267 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2021-11-23 16:45:18,267 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2021-11-23 16:45:18,267 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2021-11-23 16:45:18,267 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2021-11-23 16:45:18,267 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2021-11-23 16:45:18,267 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2021-11-23 16:45:18,267 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2021-11-23 16:45:18,268 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2021-11-23 16:45:18,268 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2021-11-23 16:45:18,268 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2021-11-23 16:45:18,268 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2021-11-23 16:45:18,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-23 16:45:18,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-23 16:45:18,269 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2021-11-23 16:45:18,269 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2021-11-23 16:45:18,269 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2021-11-23 16:45:18,269 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2021-11-23 16:45:18,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 16:45:18,269 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2021-11-23 16:45:18,269 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2021-11-23 16:45:18,270 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2021-11-23 16:45:18,270 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2021-11-23 16:45:18,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-23 16:45:18,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 16:45:18,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-23 16:45:18,271 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2021-11-23 16:45:18,272 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2021-11-23 16:45:18,272 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2021-11-23 16:45:18,273 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2021-11-23 16:45:18,273 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2021-11-23 16:45:18,273 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2021-11-23 16:45:18,273 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_nxtcolorsensor_mode [2021-11-23 16:45:18,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_nxtcolorsensor_mode [2021-11-23 16:45:18,273 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2021-11-23 16:45:18,273 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2021-11-23 16:45:18,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 16:45:18,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 16:45:18,979 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 16:45:18,982 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 16:45:33,268 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 16:45:33,295 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 16:45:33,295 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-23 16:45:33,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:45:33 BoogieIcfgContainer [2021-11-23 16:45:33,301 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 16:45:33,303 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 16:45:33,303 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 16:45:33,307 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 16:45:33,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:45:15" (1/3) ... [2021-11-23 16:45:33,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38b06474 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:45:33, skipping insertion in model container [2021-11-23 16:45:33,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:17" (2/3) ... [2021-11-23 16:45:33,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38b06474 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:45:33, skipping insertion in model container [2021-11-23 16:45:33,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:45:33" (3/3) ... [2021-11-23 16:45:33,310 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_ctm.2-2.c [2021-11-23 16:45:33,316 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 16:45:33,316 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 16:45:33,375 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 16:45:33,382 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 16:45:33,383 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 16:45:33,452 INFO L276 IsEmpty]: Start isEmpty. Operand has 2460 states, 2109 states have (on average 1.4803224276908487) internal successors, (3122), 2133 states have internal predecessors, (3122), 304 states have call successors, (304), 45 states have call predecessors, (304), 45 states have return successors, (304), 294 states have call predecessors, (304), 304 states have call successors, (304) [2021-11-23 16:45:33,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-11-23 16:45:33,469 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 16:45:33,470 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:45:33,471 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 16:45:33,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 16:45:33,476 INFO L85 PathProgramCache]: Analyzing trace with hash -646402178, now seen corresponding path program 1 times [2021-11-23 16:45:33,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 16:45:33,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [905775823] [2021-11-23 16:45:33,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 16:45:33,495 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 16:45:33,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a553fcd-ff40-464d-bf5f-5490cf840c9f/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 16:45:33,498 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a553fcd-ff40-464d-bf5f-5490cf840c9f/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 16:45:33,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a553fcd-ff40-464d-bf5f-5490cf840c9f/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process