./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M1-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_227371d7-4baf-4936-a84f-d8a1564ff7e1/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_227371d7-4baf-4936-a84f-d8a1564ff7e1/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_227371d7-4baf-4936-a84f-d8a1564ff7e1/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_227371d7-4baf-4936-a84f-d8a1564ff7e1/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M1-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_227371d7-4baf-4936-a84f-d8a1564ff7e1/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_227371d7-4baf-4936-a84f-d8a1564ff7e1/bin/uautomizer-TMbwUNV5ro --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f077881e7f4fa96e31e8798f1b4a7ec1ee00f86778c2b79845cdeaf2537e700e --- 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-8393723 [2022-11-18 20:08:08,306 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:08:08,308 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:08:08,371 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:08:08,371 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:08:08,372 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:08:08,374 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:08:08,376 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:08:08,378 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:08:08,384 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:08:08,386 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:08:08,390 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:08:08,391 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:08:08,397 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:08:08,401 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:08:08,403 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:08:08,406 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:08:08,408 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:08:08,412 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:08:08,421 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:08:08,423 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:08:08,425 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:08:08,429 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:08:08,431 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:08:08,440 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:08:08,440 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:08:08,441 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:08:08,442 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:08:08,442 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:08:08,444 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:08:08,444 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:08:08,445 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:08:08,446 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:08:08,447 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:08:08,455 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:08:08,456 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:08:08,457 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:08:08,457 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:08:08,457 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:08:08,458 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:08:08,459 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:08:08,460 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_227371d7-4baf-4936-a84f-d8a1564ff7e1/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 20:08:08,511 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:08:08,511 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:08:08,512 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:08:08,513 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:08:08,514 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:08:08,514 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:08:08,515 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:08:08,515 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:08:08,515 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:08:08,516 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:08:08,517 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:08:08,517 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:08:08,517 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:08:08,518 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:08:08,518 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:08:08,518 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:08:08,518 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:08:08,519 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:08:08,519 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:08:08,519 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:08:08,519 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:08:08,520 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:08:08,520 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:08:08,520 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:08:08,520 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:08:08,521 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:08:08,522 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:08:08,523 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:08:08,523 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:08:08,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:08:08,523 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:08:08,524 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:08:08,524 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:08:08,524 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_227371d7-4baf-4936-a84f-d8a1564ff7e1/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_227371d7-4baf-4936-a84f-d8a1564ff7e1/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f077881e7f4fa96e31e8798f1b4a7ec1ee00f86778c2b79845cdeaf2537e700e [2022-11-18 20:08:08,878 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:08:08,926 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:08:08,929 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:08:08,931 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:08:08,932 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:08:08,934 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_227371d7-4baf-4936-a84f-d8a1564ff7e1/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M1-1.c [2022-11-18 20:08:09,035 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_227371d7-4baf-4936-a84f-d8a1564ff7e1/bin/uautomizer-TMbwUNV5ro/data/60f36c4fa/e91342d410aa430999e790dd1838d9b9/FLAGd8209577e [2022-11-18 20:08:09,830 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:08:09,831 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_227371d7-4baf-4936-a84f-d8a1564ff7e1/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M1-1.c [2022-11-18 20:08:09,858 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_227371d7-4baf-4936-a84f-d8a1564ff7e1/bin/uautomizer-TMbwUNV5ro/data/60f36c4fa/e91342d410aa430999e790dd1838d9b9/FLAGd8209577e [2022-11-18 20:08:09,994 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_227371d7-4baf-4936-a84f-d8a1564ff7e1/bin/uautomizer-TMbwUNV5ro/data/60f36c4fa/e91342d410aa430999e790dd1838d9b9 [2022-11-18 20:08:09,999 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:08:10,002 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:08:10,008 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:08:10,009 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:08:10,013 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:08:10,014 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:08:09" (1/1) ... [2022-11-18 20:08:10,016 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@184884d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:08:10, skipping insertion in model container [2022-11-18 20:08:10,017 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:08:09" (1/1) ... [2022-11-18 20:08:10,026 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:08:10,094 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:08:10,352 WARN L234 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_227371d7-4baf-4936-a84f-d8a1564ff7e1/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M1-1.c[1674,1687] [2022-11-18 20:08:10,851 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:08:10,872 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:08:10,889 WARN L234 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_227371d7-4baf-4936-a84f-d8a1564ff7e1/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M1-1.c[1674,1687] [2022-11-18 20:08:11,098 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:08:11,122 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:08:11,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:08:11 WrapperNode [2022-11-18 20:08:11,124 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:08:11,125 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:08:11,125 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:08:11,126 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:08:11,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:08:11" (1/1) ... [2022-11-18 20:08:11,214 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:08:11" (1/1) ... [2022-11-18 20:08:11,456 INFO L138 Inliner]: procedures = 57, calls = 1672, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 3715 [2022-11-18 20:08:11,456 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:08:11,457 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:08:11,458 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:08:11,458 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:08:11,469 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:08:11" (1/1) ... [2022-11-18 20:08:11,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:08:11" (1/1) ... [2022-11-18 20:08:11,491 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:08:11" (1/1) ... [2022-11-18 20:08:11,492 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:08:11" (1/1) ... [2022-11-18 20:08:11,624 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:08:11" (1/1) ... [2022-11-18 20:08:11,653 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:08:11" (1/1) ... [2022-11-18 20:08:11,678 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:08:11" (1/1) ... [2022-11-18 20:08:11,693 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:08:11" (1/1) ... [2022-11-18 20:08:11,716 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:08:11,717 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:08:11,718 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:08:11,718 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:08:11,719 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:08:11" (1/1) ... [2022-11-18 20:08:11,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:08:11,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_227371d7-4baf-4936-a84f-d8a1564ff7e1/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:08:11,757 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_227371d7-4baf-4936-a84f-d8a1564ff7e1/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:08:11,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_227371d7-4baf-4936-a84f-d8a1564ff7e1/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:08:11,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:08:11,810 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-11-18 20:08:11,810 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-11-18 20:08:11,811 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-11-18 20:08:11,811 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-11-18 20:08:11,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:08:11,811 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-11-18 20:08:11,811 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-11-18 20:08:11,812 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-11-18 20:08:11,813 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-11-18 20:08:11,813 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-11-18 20:08:11,813 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-11-18 20:08:11,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:08:11,813 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-11-18 20:08:11,814 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-11-18 20:08:11,814 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-11-18 20:08:11,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-11-18 20:08:11,814 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-11-18 20:08:11,814 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-11-18 20:08:11,814 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-11-18 20:08:11,815 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-11-18 20:08:11,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:08:11,815 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2022-11-18 20:08:11,815 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2022-11-18 20:08:11,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:08:11,816 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-11-18 20:08:11,816 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-11-18 20:08:11,816 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-18 20:08:11,816 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-18 20:08:11,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:08:11,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:08:11,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:08:11,817 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-11-18 20:08:11,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-11-18 20:08:11,818 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-11-18 20:08:11,818 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-11-18 20:08:11,818 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-11-18 20:08:11,818 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-11-18 20:08:12,400 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:08:12,402 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:08:19,911 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:08:19,942 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:08:19,946 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 20:08:19,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:08:19 BoogieIcfgContainer [2022-11-18 20:08:19,951 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:08:19,954 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:08:19,954 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:08:19,982 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:08:19,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:08:09" (1/3) ... [2022-11-18 20:08:19,983 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5147cb89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:08:19, skipping insertion in model container [2022-11-18 20:08:19,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:08:11" (2/3) ... [2022-11-18 20:08:19,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5147cb89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:08:19, skipping insertion in model container [2022-11-18 20:08:19,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:08:19" (3/3) ... [2022-11-18 20:08:19,988 INFO L112 eAbstractionObserver]: Analyzing ICFG rekcba_nxt.1.M1-1.c [2022-11-18 20:08:20,027 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:08:20,027 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 20:08:20,120 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:08:20,128 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=PETRI_NET, 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;@7ca19782, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:08:20,128 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 20:08:20,138 INFO L276 IsEmpty]: Start isEmpty. Operand has 1138 states, 729 states have (on average 1.289437585733882) internal successors, (940), 761 states have internal predecessors, (940), 392 states have call successors, (392), 15 states have call predecessors, (392), 15 states have return successors, (392), 390 states have call predecessors, (392), 392 states have call successors, (392) [2022-11-18 20:08:20,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 723 [2022-11-18 20:08:20,231 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:08:20,232 INFO L195 NwaCegarLoop]: trace histogram [85, 85, 85, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:08:20,233 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:08:20,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:08:20,241 INFO L85 PathProgramCache]: Analyzing trace with hash -435675448, now seen corresponding path program 1 times [2022-11-18 20:08:20,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:08:20,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635610626] [2022-11-18 20:08:20,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:08:20,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms