/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M1-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 05:34:55,386 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 05:34:55,388 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 05:34:55,422 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 05:34:55,422 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 05:34:55,425 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 05:34:55,427 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 05:34:55,429 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 05:34:55,430 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 05:34:55,434 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 05:34:55,435 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 05:34:55,436 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 05:34:55,437 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 05:34:55,438 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 05:34:55,439 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 05:34:55,440 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 05:34:55,441 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 05:34:55,441 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 05:34:55,442 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 05:34:55,446 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 05:34:55,447 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 05:34:55,448 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 05:34:55,448 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 05:34:55,449 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 05:34:55,455 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 05:34:55,456 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 05:34:55,456 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 05:34:55,457 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 05:34:55,457 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 05:34:55,458 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 05:34:55,458 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 05:34:55,458 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 05:34:55,459 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 05:34:55,460 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 05:34:55,460 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 05:34:55,460 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 05:34:55,461 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 05:34:55,461 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 05:34:55,461 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 05:34:55,461 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 05:34:55,462 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 05:34:55,463 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-04-02 05:34:55,487 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 05:34:55,487 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 05:34:55,487 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 05:34:55,487 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 05:34:55,489 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 05:34:55,489 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 05:34:55,489 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 05:34:55,489 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 05:34:55,489 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 05:34:55,489 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 05:34:55,490 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 05:34:55,490 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 05:34:55,490 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 05:34:55,490 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 05:34:55,490 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 05:34:55,490 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 05:34:55,490 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 05:34:55,490 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 05:34:55,491 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 05:34:55,491 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 05:34:55,491 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 05:34:55,491 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 05:34:55,491 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 05:34:55,491 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 05:34:55,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 05:34:55,491 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 05:34:55,491 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 05:34:55,491 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 05:34:55,491 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 05:34:55,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 05:34:55,492 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 05:34:55,492 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 05:34:55,492 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 05:34:55,492 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 05:34:55,492 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 05:34:55,492 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 05:34:55,692 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 05:34:55,713 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 05:34:55,715 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 05:34:55,716 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 05:34:55,716 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 05:34:55,717 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M1-2.c [2023-04-02 05:34:56,706 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 05:34:56,937 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 05:34:56,937 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M1-2.c [2023-04-02 05:34:56,960 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/973992a30/a3513e9e9e944aa083a394ff47d91ca3/FLAG14dfdfdb7 [2023-04-02 05:34:56,975 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/973992a30/a3513e9e9e944aa083a394ff47d91ca3 [2023-04-02 05:34:56,977 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 05:34:56,978 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 05:34:56,980 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 05:34:56,980 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 05:34:56,982 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 05:34:56,983 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 05:34:56" (1/1) ... [2023-04-02 05:34:56,984 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cf49866 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:34:56, skipping insertion in model container [2023-04-02 05:34:56,984 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 05:34:56" (1/1) ... [2023-04-02 05:34:56,990 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 05:34:57,036 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 05:34:57,146 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M1-2.c[1673,1686] [2023-04-02 05:34:57,412 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 05:34:57,423 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 05:34:57,432 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M1-2.c[1673,1686] [2023-04-02 05:34:57,626 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 05:34:57,643 INFO L208 MainTranslator]: Completed translation [2023-04-02 05:34:57,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:34:57 WrapperNode [2023-04-02 05:34:57,644 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 05:34:57,645 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 05:34:57,645 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 05:34:57,645 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 05:34:57,653 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:34:57" (1/1) ... [2023-04-02 05:34:57,653 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:34:57" (1/1) ... [2023-04-02 05:34:57,695 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:34:57" (1/1) ... [2023-04-02 05:34:57,695 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:34:57" (1/1) ... [2023-04-02 05:34:57,791 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:34:57" (1/1) ... [2023-04-02 05:34:57,808 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:34:57" (1/1) ... [2023-04-02 05:34:57,831 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:34:57" (1/1) ... [2023-04-02 05:34:57,844 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:34:57" (1/1) ... [2023-04-02 05:34:57,866 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 05:34:57,867 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 05:34:57,867 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 05:34:57,867 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 05:34:57,868 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:34:57" (1/1) ... [2023-04-02 05:34:57,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 05:34:57,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:34:57,894 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-02 05:34:57,913 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-02 05:34:57,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 05:34:57,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 05:34:57,938 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 05:34:57,938 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-02 05:34:57,938 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-04-02 05:34:57,938 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_init [2023-04-02 05:34:57,938 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_control [2023-04-02 05:34:57,938 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2023-04-02 05:34:57,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2023-04-02 05:34:57,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2023-04-02 05:34:57,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_read_bt_packet [2023-04-02 05:34:57,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_battery_voltage [2023-04-02 05:34:57,939 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts1 [2023-04-02 05:34:57,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_sonar_sensor [2023-04-02 05:34:57,939 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts2 [2023-04-02 05:34:57,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_final [2023-04-02 05:34:57,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-04-02 05:34:57,939 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts2 [2023-04-02 05:34:57,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-04-02 05:34:57,939 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts1 [2023-04-02 05:34:57,939 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_Background [2023-04-02 05:34:57,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2023-04-02 05:34:57,940 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_Background [2023-04-02 05:34:57,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_schedule_jobs [2023-04-02 05:34:57,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_globals [2023-04-02 05:34:57,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2023-04-02 05:34:57,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2023-04-02 05:34:57,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2023-04-02 05:34:57,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_check_assumptions [2023-04-02 05:34:57,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_init [2023-04-02 05:34:57,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_check_assertions [2023-04-02 05:34:57,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __main [2023-04-02 05:34:57,940 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 05:34:57,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2023-04-02 05:34:57,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2023-04-02 05:34:57,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2023-04-02 05:34:57,941 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2023-04-02 05:34:57,941 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_shared [2023-04-02 05:34:57,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_bt_data_logger [2023-04-02 05:34:57,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_sound_tone [2023-04-02 05:34:57,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_status_monitor [2023-04-02 05:34:57,941 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2023-04-02 05:34:57,941 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2023-04-02 05:34:57,941 INFO L138 BoogieDeclarations]: Found implementation of procedure write_mode_on_lcd [2023-04-02 05:34:57,941 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 05:34:57,941 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 05:34:57,941 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 05:34:57,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 05:34:57,941 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_shared [2023-04-02 05:34:57,942 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2023-04-02 05:34:57,942 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2023-04-02 05:34:57,942 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2023-04-02 05:34:57,942 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-02 05:34:57,942 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2023-04-02 05:34:57,942 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 05:34:57,942 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-02 05:34:57,942 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-04-02 05:34:57,942 INFO L130 BoogieDeclarations]: Found specification of procedure balance_init [2023-04-02 05:34:57,942 INFO L130 BoogieDeclarations]: Found specification of procedure balance_control [2023-04-02 05:34:57,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-02 05:34:57,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 05:34:57,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 05:34:57,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 05:34:57,943 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2023-04-02 05:34:57,943 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-04-02 05:34:57,943 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2023-04-02 05:34:57,943 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2023-04-02 05:34:57,943 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2023-04-02 05:34:57,943 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2023-04-02 05:34:57,943 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2023-04-02 05:34:57,943 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2023-04-02 05:34:57,943 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2023-04-02 05:34:57,943 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2023-04-02 05:34:57,943 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_sound_tone [2023-04-02 05:34:57,943 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_status_monitor [2023-04-02 05:34:57,943 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_read_bt_packet [2023-04-02 05:34:57,944 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_battery_voltage [2023-04-02 05:34:57,944 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2023-04-02 05:34:57,944 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_bt_data_logger [2023-04-02 05:34:57,944 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts1 [2023-04-02 05:34:57,944 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_sonar_sensor [2023-04-02 05:34:57,944 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts2 [2023-04-02 05:34:57,944 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_final [2023-04-02 05:34:57,944 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-04-02 05:34:57,944 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts2 [2023-04-02 05:34:57,944 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-04-02 05:34:57,944 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts1 [2023-04-02 05:34:57,944 INFO L130 BoogieDeclarations]: Found specification of procedure write_mode_on_lcd [2023-04-02 05:34:57,944 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_Background [2023-04-02 05:34:57,945 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2023-04-02 05:34:57,945 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_Background [2023-04-02 05:34:57,945 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_schedule_jobs [2023-04-02 05:34:57,945 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_globals [2023-04-02 05:34:57,945 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_check_assumptions [2023-04-02 05:34:57,945 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_init [2023-04-02 05:34:57,945 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_check_assertions [2023-04-02 05:34:57,945 INFO L130 BoogieDeclarations]: Found specification of procedure __main [2023-04-02 05:34:57,945 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 05:34:57,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 05:34:57,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 05:34:57,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 05:34:58,264 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 05:34:58,268 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 05:35:04,362 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 05:35:04,378 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 05:35:04,379 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-02 05:35:04,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 05:35:04 BoogieIcfgContainer [2023-04-02 05:35:04,382 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 05:35:04,384 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 05:35:04,385 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 05:35:04,387 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 05:35:04,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 05:34:56" (1/3) ... [2023-04-02 05:35:04,388 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29342825 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 05:35:04, skipping insertion in model container [2023-04-02 05:35:04,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:34:57" (2/3) ... [2023-04-02 05:35:04,388 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29342825 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 05:35:04, skipping insertion in model container [2023-04-02 05:35:04,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 05:35:04" (3/3) ... [2023-04-02 05:35:04,389 INFO L112 eAbstractionObserver]: Analyzing ICFG rekcba_nxt.1.M1-2.c [2023-04-02 05:35:04,402 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 05:35:04,402 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 05:35:04,487 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 05:35:04,493 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;@2fc70214, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 05:35:04,493 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 05:35:04,502 INFO L276 IsEmpty]: Start isEmpty. Operand has 1221 states, 761 states have (on average 1.2772667542706964) internal successors, (972), 795 states have internal predecessors, (972), 416 states have call successors, (416), 39 states have call predecessors, (416), 39 states have return successors, (416), 413 states have call predecessors, (416), 416 states have call successors, (416) [2023-04-02 05:35:04,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 750 [2023-04-02 05:35:04,547 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:35:04,549 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:35:04,550 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:35:04,556 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:35:04,557 INFO L85 PathProgramCache]: Analyzing trace with hash -977956617, now seen corresponding path program 1 times [2023-04-02 05:35:04,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:35:04,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589577136] [2023-04-02 05:35:04,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:35:04,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms