./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M4-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_e1fe91d9-6ca3-41f6-8032-d7f39de4ce5d/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1fe91d9-6ca3-41f6-8032-d7f39de4ce5d/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1fe91d9-6ca3-41f6-8032-d7f39de4ce5d/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1fe91d9-6ca3-41f6-8032-d7f39de4ce5d/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M4-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1fe91d9-6ca3-41f6-8032-d7f39de4ce5d/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1fe91d9-6ca3-41f6-8032-d7f39de4ce5d/bin/uautomizer-uyxdKDjOR8 --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 6240875fd021ef86002633b5e6fdfcec4ffcbe681ff045b4f4e341a758fe554a --- 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-2329fc7 [2022-12-13 15:00:08,315 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 15:00:08,317 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 15:00:08,330 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 15:00:08,331 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 15:00:08,331 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 15:00:08,332 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 15:00:08,334 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 15:00:08,335 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 15:00:08,335 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 15:00:08,336 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 15:00:08,337 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 15:00:08,337 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 15:00:08,338 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 15:00:08,339 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 15:00:08,339 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 15:00:08,340 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 15:00:08,341 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 15:00:08,342 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 15:00:08,343 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 15:00:08,344 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 15:00:08,345 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 15:00:08,346 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 15:00:08,347 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 15:00:08,349 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 15:00:08,349 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 15:00:08,350 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 15:00:08,350 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 15:00:08,350 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 15:00:08,351 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 15:00:08,351 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 15:00:08,352 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 15:00:08,353 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 15:00:08,353 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 15:00:08,354 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 15:00:08,354 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 15:00:08,354 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 15:00:08,355 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 15:00:08,355 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 15:00:08,355 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 15:00:08,356 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 15:00:08,357 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1fe91d9-6ca3-41f6-8032-d7f39de4ce5d/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 15:00:08,381 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 15:00:08,381 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 15:00:08,382 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 15:00:08,382 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 15:00:08,382 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 15:00:08,383 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 15:00:08,383 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 15:00:08,384 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 15:00:08,384 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 15:00:08,384 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 15:00:08,384 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 15:00:08,384 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 15:00:08,385 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 15:00:08,385 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 15:00:08,385 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 15:00:08,385 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 15:00:08,386 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 15:00:08,386 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 15:00:08,386 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 15:00:08,386 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 15:00:08,386 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 15:00:08,386 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 15:00:08,387 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 15:00:08,387 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 15:00:08,387 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:00:08,387 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 15:00:08,387 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 15:00:08,387 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 15:00:08,387 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 15:00:08,388 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 15:00:08,388 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 15:00:08,388 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 15:00:08,388 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 15:00:08,388 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 15:00:08,388 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 15:00:08,389 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_e1fe91d9-6ca3-41f6-8032-d7f39de4ce5d/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1fe91d9-6ca3-41f6-8032-d7f39de4ce5d/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6240875fd021ef86002633b5e6fdfcec4ffcbe681ff045b4f4e341a758fe554a [2022-12-13 15:00:08,569 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 15:00:08,586 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 15:00:08,588 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 15:00:08,589 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 15:00:08,590 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 15:00:08,591 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1fe91d9-6ca3-41f6-8032-d7f39de4ce5d/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M4-1.c [2022-12-13 15:00:11,092 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 15:00:11,520 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 15:00:11,521 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1fe91d9-6ca3-41f6-8032-d7f39de4ce5d/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M4-1.c [2022-12-13 15:00:11,561 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1fe91d9-6ca3-41f6-8032-d7f39de4ce5d/bin/uautomizer-uyxdKDjOR8/data/001b9aa55/b4461bd88697410cb8bc0c15f7b7aad1/FLAG51bf9d9d2 [2022-12-13 15:00:11,651 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1fe91d9-6ca3-41f6-8032-d7f39de4ce5d/bin/uautomizer-uyxdKDjOR8/data/001b9aa55/b4461bd88697410cb8bc0c15f7b7aad1 [2022-12-13 15:00:11,652 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 15:00:11,653 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 15:00:11,654 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 15:00:11,654 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 15:00:11,658 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 15:00:11,658 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:00:11" (1/1) ... [2022-12-13 15:00:11,659 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f232cac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:00:11, skipping insertion in model container [2022-12-13 15:00:11,659 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:00:11" (1/1) ... [2022-12-13 15:00:11,665 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 15:00:11,800 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 15:00:11,968 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1fe91d9-6ca3-41f6-8032-d7f39de4ce5d/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M4-1.c[2195,2208] [2022-12-13 15:00:12,052 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-13 15:00:12,052 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-13 15:00:12,054 WARN L623 FunctionHandler]: Unknown extern function ecrobot_sound_tone [2022-12-13 15:00:12,059 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 15:00:12,059 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 15:00:12,060 WARN L623 FunctionHandler]: Unknown extern function ecrobot_bt_data_logger [2022-12-13 15:00:12,060 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 15:00:12,060 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 15:00:12,084 WARN L623 FunctionHandler]: Unknown extern function ecrobot_status_monitor [2022-12-13 15:00:12,084 WARN L623 FunctionHandler]: Unknown extern function write_mode_on_lcd [2022-12-13 15:00:12,592 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:00:12,605 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 15:00:12,615 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1fe91d9-6ca3-41f6-8032-d7f39de4ce5d/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M4-1.c[2195,2208] [2022-12-13 15:00:12,624 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-13 15:00:12,624 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-13 15:00:12,624 WARN L623 FunctionHandler]: Unknown extern function ecrobot_sound_tone [2022-12-13 15:00:12,625 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 15:00:12,626 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 15:00:12,626 WARN L623 FunctionHandler]: Unknown extern function ecrobot_bt_data_logger [2022-12-13 15:00:12,626 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 15:00:12,626 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 15:00:12,628 WARN L623 FunctionHandler]: Unknown extern function ecrobot_status_monitor [2022-12-13 15:00:12,629 WARN L623 FunctionHandler]: Unknown extern function write_mode_on_lcd [2022-12-13 15:00:13,128 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:00:13,144 INFO L208 MainTranslator]: Completed translation [2022-12-13 15:00:13,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:00:13 WrapperNode [2022-12-13 15:00:13,145 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 15:00:13,145 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 15:00:13,146 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 15:00:13,146 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 15:00:13,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:00:13" (1/1) ... [2022-12-13 15:00:13,319 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:00:13" (1/1) ... [2022-12-13 15:00:13,902 INFO L138 Inliner]: procedures = 58, calls = 18195, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 39852 [2022-12-13 15:00:13,902 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 15:00:13,902 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 15:00:13,903 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 15:00:13,903 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 15:00:13,910 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:00:13" (1/1) ... [2022-12-13 15:00:13,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:00:13" (1/1) ... [2022-12-13 15:00:14,067 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:00:13" (1/1) ... [2022-12-13 15:00:14,068 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:00:13" (1/1) ... [2022-12-13 15:00:14,453 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:00:13" (1/1) ... [2022-12-13 15:00:14,498 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:00:13" (1/1) ... [2022-12-13 15:00:14,540 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:00:13" (1/1) ... [2022-12-13 15:00:14,568 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:00:13" (1/1) ... [2022-12-13 15:00:14,669 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 15:00:14,669 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 15:00:14,669 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 15:00:14,670 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 15:00:14,670 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:00:13" (1/1) ... [2022-12-13 15:00:14,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:00:14,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1fe91d9-6ca3-41f6-8032-d7f39de4ce5d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:00:14,693 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1fe91d9-6ca3-41f6-8032-d7f39de4ce5d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 15:00:14,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1fe91d9-6ca3-41f6-8032-d7f39de4ce5d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 15:00:14,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 15:00:14,723 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-12-13 15:00:14,723 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-12-13 15:00:14,723 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-12-13 15:00:14,724 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-12-13 15:00:14,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 15:00:14,724 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-12-13 15:00:14,724 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-12-13 15:00:14,724 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-12-13 15:00:14,724 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-12-13 15:00:14,724 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-12-13 15:00:14,724 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-12-13 15:00:14,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 15:00:14,724 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-12-13 15:00:14,725 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-12-13 15:00:14,725 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-12-13 15:00:14,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-12-13 15:00:14,725 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-12-13 15:00:14,725 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-12-13 15:00:14,725 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-12-13 15:00:14,725 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-12-13 15:00:14,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 15:00:14,725 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2022-12-13 15:00:14,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2022-12-13 15:00:14,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 15:00:14,726 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-12-13 15:00:14,726 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-12-13 15:00:14,726 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-12-13 15:00:14,726 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-12-13 15:00:14,726 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-13 15:00:14,726 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-13 15:00:14,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 15:00:14,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 15:00:14,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 15:00:14,727 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-12-13 15:00:14,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-12-13 15:00:14,727 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-12-13 15:00:14,727 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-12-13 15:00:14,727 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-12-13 15:00:14,727 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-12-13 15:00:16,079 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 15:00:16,080 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 15:01:00,035 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 15:01:00,066 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 15:01:00,066 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 15:01:00,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:01:00 BoogieIcfgContainer [2022-12-13 15:01:00,074 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 15:01:00,076 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 15:01:00,076 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 15:01:00,078 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 15:01:00,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 03:00:11" (1/3) ... [2022-12-13 15:01:00,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c992db7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:01:00, skipping insertion in model container [2022-12-13 15:01:00,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:00:13" (2/3) ... [2022-12-13 15:01:00,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c992db7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:01:00, skipping insertion in model container [2022-12-13 15:01:00,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:01:00" (3/3) ... [2022-12-13 15:01:00,081 INFO L112 eAbstractionObserver]: Analyzing ICFG rekcba_nxt.2.M4-1.c [2022-12-13 15:01:00,095 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 15:01:00,095 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 15:01:00,383 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 15:01:00,389 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;@51b765eb, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 15:01:00,389 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 15:01:00,423 INFO L276 IsEmpty]: Start isEmpty. Operand has 12240 states, 7996 states have (on average 1.3156578289144572) internal successors, (10520), 8109 states have internal predecessors, (10520), 4226 states have call successors, (4226), 16 states have call predecessors, (4226), 16 states have return successors, (4226), 4224 states have call predecessors, (4226), 4226 states have call successors, (4226) [2022-12-13 15:01:00,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4617 [2022-12-13 15:01:00,842 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:01:00,844 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2022-12-13 15:01:00,844 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:01:00,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:01:00,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1377856296, now seen corresponding path program 1 times [2022-12-13 15:01:00,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:01:00,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615743340] [2022-12-13 15:01:00,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:01:00,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms