./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M4-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ec6d63b-3429-49dd-9a22-ea026d6f3913/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ec6d63b-3429-49dd-9a22-ea026d6f3913/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ec6d63b-3429-49dd-9a22-ea026d6f3913/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ec6d63b-3429-49dd-9a22-ea026d6f3913/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M4-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ec6d63b-3429-49dd-9a22-ea026d6f3913/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ec6d63b-3429-49dd-9a22-ea026d6f3913/bin/uautomizer-tPACEb0tL8 --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 59e3e46f44c4af6b4c125f352948304d54499979006c079b47d74ff56c39a104 --- 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-e04fb08 [2022-11-16 10:54:14,311 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 10:54:14,313 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 10:54:14,358 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 10:54:14,358 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 10:54:14,359 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 10:54:14,361 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 10:54:14,363 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 10:54:14,365 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 10:54:14,366 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 10:54:14,370 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 10:54:14,374 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 10:54:14,375 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 10:54:14,380 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 10:54:14,384 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 10:54:14,387 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 10:54:14,388 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 10:54:14,391 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 10:54:14,394 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 10:54:14,401 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 10:54:14,403 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 10:54:14,405 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 10:54:14,409 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 10:54:14,410 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 10:54:14,418 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 10:54:14,421 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 10:54:14,421 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 10:54:14,422 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 10:54:14,424 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 10:54:14,425 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 10:54:14,425 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 10:54:14,426 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 10:54:14,428 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 10:54:14,429 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 10:54:14,430 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 10:54:14,430 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 10:54:14,431 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 10:54:14,431 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 10:54:14,432 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 10:54:14,433 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 10:54:14,434 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 10:54:14,435 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ec6d63b-3429-49dd-9a22-ea026d6f3913/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-16 10:54:14,474 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 10:54:14,475 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 10:54:14,475 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 10:54:14,476 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 10:54:14,477 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 10:54:14,477 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 10:54:14,478 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 10:54:14,478 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 10:54:14,478 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 10:54:14,478 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 10:54:14,480 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 10:54:14,480 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 10:54:14,480 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 10:54:14,480 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 10:54:14,480 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 10:54:14,481 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 10:54:14,481 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 10:54:14,481 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 10:54:14,481 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 10:54:14,481 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 10:54:14,482 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 10:54:14,482 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 10:54:14,482 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 10:54:14,482 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 10:54:14,483 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 10:54:14,483 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 10:54:14,484 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 10:54:14,485 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 10:54:14,485 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 10:54:14,485 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 10:54:14,485 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 10:54:14,486 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 10:54:14,486 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 10:54:14,486 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_8ec6d63b-3429-49dd-9a22-ea026d6f3913/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ec6d63b-3429-49dd-9a22-ea026d6f3913/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 59e3e46f44c4af6b4c125f352948304d54499979006c079b47d74ff56c39a104 [2022-11-16 10:54:14,795 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 10:54:14,818 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 10:54:14,821 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 10:54:14,823 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 10:54:14,823 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 10:54:14,825 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ec6d63b-3429-49dd-9a22-ea026d6f3913/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M4-1.c [2022-11-16 10:54:14,906 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ec6d63b-3429-49dd-9a22-ea026d6f3913/bin/uautomizer-tPACEb0tL8/data/79f60ee5f/9f8518b4eab14f3cacae7a3f1a06894b/FLAGeedc14f02 [2022-11-16 10:54:15,935 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 10:54:15,936 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ec6d63b-3429-49dd-9a22-ea026d6f3913/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M4-1.c [2022-11-16 10:54:16,018 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ec6d63b-3429-49dd-9a22-ea026d6f3913/bin/uautomizer-tPACEb0tL8/data/79f60ee5f/9f8518b4eab14f3cacae7a3f1a06894b/FLAGeedc14f02 [2022-11-16 10:54:16,314 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ec6d63b-3429-49dd-9a22-ea026d6f3913/bin/uautomizer-tPACEb0tL8/data/79f60ee5f/9f8518b4eab14f3cacae7a3f1a06894b [2022-11-16 10:54:16,317 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 10:54:16,320 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 10:54:16,323 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 10:54:16,323 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 10:54:16,327 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 10:54:16,328 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:54:16" (1/1) ... [2022-11-16 10:54:16,329 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a3b2627 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:16, skipping insertion in model container [2022-11-16 10:54:16,329 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:54:16" (1/1) ... [2022-11-16 10:54:16,337 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 10:54:16,553 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 10:54:16,864 WARN L229 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_8ec6d63b-3429-49dd-9a22-ea026d6f3913/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M4-1.c[1673,1686] [2022-11-16 10:54:17,999 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 10:54:18,012 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 10:54:18,038 WARN L229 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_8ec6d63b-3429-49dd-9a22-ea026d6f3913/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M4-1.c[1673,1686] [2022-11-16 10:54:18,891 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 10:54:18,916 INFO L208 MainTranslator]: Completed translation [2022-11-16 10:54:18,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:18 WrapperNode [2022-11-16 10:54:18,917 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 10:54:18,918 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 10:54:18,918 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 10:54:18,919 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 10:54:18,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:18" (1/1) ... [2022-11-16 10:54:19,394 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:18" (1/1) ... [2022-11-16 10:54:20,953 INFO L138 Inliner]: procedures = 57, calls = 17866, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 39403 [2022-11-16 10:54:20,953 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 10:54:20,954 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 10:54:20,954 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 10:54:20,955 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 10:54:20,976 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:18" (1/1) ... [2022-11-16 10:54:20,976 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:18" (1/1) ... [2022-11-16 10:54:21,332 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:18" (1/1) ... [2022-11-16 10:54:21,333 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:18" (1/1) ... [2022-11-16 10:54:22,201 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:18" (1/1) ... [2022-11-16 10:54:22,277 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:18" (1/1) ... [2022-11-16 10:54:22,382 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:18" (1/1) ... [2022-11-16 10:54:22,566 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:18" (1/1) ... [2022-11-16 10:54:22,720 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 10:54:22,722 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 10:54:22,722 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 10:54:22,722 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 10:54:22,723 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:18" (1/1) ... [2022-11-16 10:54:22,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 10:54:22,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ec6d63b-3429-49dd-9a22-ea026d6f3913/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 10:54:22,764 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ec6d63b-3429-49dd-9a22-ea026d6f3913/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 10:54:22,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ec6d63b-3429-49dd-9a22-ea026d6f3913/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 10:54:22,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 10:54:22,822 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-11-16 10:54:22,822 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-11-16 10:54:22,822 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-11-16 10:54:22,822 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-11-16 10:54:22,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 10:54:22,822 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-11-16 10:54:22,822 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-11-16 10:54:22,823 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-11-16 10:54:22,823 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-11-16 10:54:22,823 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-11-16 10:54:22,823 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-11-16 10:54:22,823 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 10:54:22,823 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-11-16 10:54:22,823 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-11-16 10:54:22,823 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-11-16 10:54:22,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-11-16 10:54:22,824 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-11-16 10:54:22,824 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-11-16 10:54:22,824 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-11-16 10:54:22,824 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-11-16 10:54:22,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 10:54:22,824 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2022-11-16 10:54:22,824 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2022-11-16 10:54:22,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 10:54:22,825 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-11-16 10:54:22,825 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-11-16 10:54:22,825 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-16 10:54:22,825 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-16 10:54:22,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 10:54:22,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 10:54:22,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 10:54:22,826 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-11-16 10:54:22,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-11-16 10:54:22,826 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-11-16 10:54:22,826 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-11-16 10:54:22,826 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-11-16 10:54:22,826 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-11-16 10:54:25,042 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 10:54:25,045 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 10:55:20,373 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 10:55:20,434 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 10:55:20,434 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 10:55:20,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 10:55:20 BoogieIcfgContainer [2022-11-16 10:55:20,448 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 10:55:20,452 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 10:55:20,452 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 10:55:20,456 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 10:55:20,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 10:54:16" (1/3) ... [2022-11-16 10:55:20,457 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bc158dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:55:20, skipping insertion in model container [2022-11-16 10:55:20,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:18" (2/3) ... [2022-11-16 10:55:20,458 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bc158dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:55:20, skipping insertion in model container [2022-11-16 10:55:20,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 10:55:20" (3/3) ... [2022-11-16 10:55:20,459 INFO L112 eAbstractionObserver]: Analyzing ICFG rekcba_nxt.1.M4-1.c [2022-11-16 10:55:20,480 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 10:55:20,481 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 10:55:20,752 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 10:55:20,761 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;@176cdf34, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 10:55:20,761 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 10:55:20,799 INFO L276 IsEmpty]: Start isEmpty. Operand has 12013 states, 7878 states have (on average 1.3196242701193197) internal successors, (10396), 7991 states have internal predecessors, (10396), 4118 states have call successors, (4118), 15 states have call predecessors, (4118), 15 states have return successors, (4118), 4116 states have call predecessors, (4118), 4118 states have call successors, (4118) [2022-11-16 10:55:21,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4617 [2022-11-16 10:55:21,415 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 10:55:21,419 INFO L195 NwaCegarLoop]: trace histogram [337, 337, 337, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1] [2022-11-16 10:55:21,420 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 10:55:21,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:55:21,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1611338198, now seen corresponding path program 1 times [2022-11-16 10:55:21,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:55:21,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169882515] [2022-11-16 10:55:21,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:55:21,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms