/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.M4-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 05:35:48,007 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 05:35:48,008 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 05:35:48,037 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 05:35:48,037 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 05:35:48,038 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 05:35:48,039 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 05:35:48,040 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 05:35:48,041 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 05:35:48,041 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 05:35:48,042 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 05:35:48,044 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 05:35:48,044 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 05:35:48,050 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 05:35:48,050 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 05:35:48,051 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 05:35:48,051 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 05:35:48,052 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 05:35:48,052 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 05:35:48,053 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 05:35:48,054 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 05:35:48,057 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 05:35:48,059 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 05:35:48,060 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 05:35:48,077 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 05:35:48,077 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 05:35:48,077 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 05:35:48,078 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 05:35:48,078 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 05:35:48,079 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 05:35:48,079 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 05:35:48,079 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 05:35:48,080 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 05:35:48,080 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 05:35:48,081 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 05:35:48,081 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 05:35:48,082 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 05:35:48,082 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 05:35:48,082 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 05:35:48,082 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 05:35:48,083 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 05:35:48,084 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 05:35:48,113 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 05:35:48,114 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 05:35:48,114 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 05:35:48,114 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 05:35:48,115 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 05:35:48,115 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 05:35:48,115 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 05:35:48,116 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 05:35:48,116 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 05:35:48,116 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 05:35:48,116 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 05:35:48,116 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 05:35:48,116 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 05:35:48,117 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 05:35:48,117 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 05:35:48,117 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 05:35:48,117 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 05:35:48,117 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 05:35:48,117 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 05:35:48,117 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 05:35:48,117 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 05:35:48,117 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 05:35:48,117 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 05:35:48,118 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 05:35:48,118 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 05:35:48,118 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 05:35:48,118 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 05:35:48,118 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 05:35:48,118 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 05:35:48,118 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 05:35:48,118 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 05:35:48,119 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 05:35:48,119 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 05:35:48,119 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 05:35:48,119 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 05:35:48,119 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 05:35:48,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 05:35:48,300 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 05:35:48,302 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 05:35:48,302 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 05:35:48,303 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 05:35:48,303 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M4-2.c [2023-04-02 05:35:49,499 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 05:35:49,923 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 05:35:49,924 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M4-2.c [2023-04-02 05:35:49,967 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f00e1333/31416a82eb824591aae26d9e5e35d14f/FLAGb952cbb84 [2023-04-02 05:35:49,982 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f00e1333/31416a82eb824591aae26d9e5e35d14f [2023-04-02 05:35:49,984 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 05:35:49,986 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 05:35:49,987 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 05:35:49,987 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 05:35:49,990 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 05:35:49,990 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 05:35:49" (1/1) ... [2023-04-02 05:35:49,992 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c08b857 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:35:49, skipping insertion in model container [2023-04-02 05:35:49,992 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 05:35:49" (1/1) ... [2023-04-02 05:35:49,997 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 05:35:50,135 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 05:35:50,343 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.M4-2.c[1674,1687] [2023-04-02 05:35:51,244 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 05:35:51,259 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 05:35:51,279 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.M4-2.c[1674,1687] [2023-04-02 05:35:51,946 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 05:35:51,963 INFO L208 MainTranslator]: Completed translation [2023-04-02 05:35:51,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:35:51 WrapperNode [2023-04-02 05:35:51,964 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 05:35:51,965 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 05:35:51,965 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 05:35:51,965 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 05:35:51,973 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:35:51" (1/1) ... [2023-04-02 05:35:51,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:35:51" (1/1) ... [2023-04-02 05:35:52,406 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:35:51" (1/1) ... [2023-04-02 05:35:52,407 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:35:51" (1/1) ... [2023-04-02 05:35:53,176 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:35:51" (1/1) ... [2023-04-02 05:35:53,249 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:35:51" (1/1) ... [2023-04-02 05:35:53,331 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:35:51" (1/1) ... [2023-04-02 05:35:53,395 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:35:51" (1/1) ... [2023-04-02 05:35:53,688 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 05:35:53,689 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 05:35:53,689 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 05:35:53,689 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 05:35:53,690 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:35:51" (1/1) ... [2023-04-02 05:35:53,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 05:35:53,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:35:53,722 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 05:35:53,753 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 05:35:53,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 05:35:53,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 05:35:53,772 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 05:35:53,772 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-02 05:35:53,772 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-04-02 05:35:53,772 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_init [2023-04-02 05:35:53,772 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_control [2023-04-02 05:35:53,772 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2023-04-02 05:35:53,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2023-04-02 05:35:53,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2023-04-02 05:35:53,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_read_bt_packet [2023-04-02 05:35:53,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_battery_voltage [2023-04-02 05:35:53,773 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts1 [2023-04-02 05:35:53,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_sonar_sensor [2023-04-02 05:35:53,773 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts2 [2023-04-02 05:35:53,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_final [2023-04-02 05:35:53,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-04-02 05:35:53,773 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts2 [2023-04-02 05:35:53,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-04-02 05:35:53,773 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts1 [2023-04-02 05:35:53,773 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_Background [2023-04-02 05:35:53,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2023-04-02 05:35:53,773 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_Background [2023-04-02 05:35:53,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_schedule_jobs [2023-04-02 05:35:53,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_globals [2023-04-02 05:35:53,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2023-04-02 05:35:53,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2023-04-02 05:35:53,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2023-04-02 05:35:53,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_check_assumptions [2023-04-02 05:35:53,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_init [2023-04-02 05:35:53,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_check_assertions [2023-04-02 05:35:53,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __main [2023-04-02 05:35:53,774 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 05:35:53,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2023-04-02 05:35:53,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2023-04-02 05:35:53,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2023-04-02 05:35:53,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2023-04-02 05:35:53,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_shared [2023-04-02 05:35:53,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_bt_data_logger [2023-04-02 05:35:53,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_sound_tone [2023-04-02 05:35:53,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_status_monitor [2023-04-02 05:35:53,774 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2023-04-02 05:35:53,774 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2023-04-02 05:35:53,774 INFO L138 BoogieDeclarations]: Found implementation of procedure write_mode_on_lcd [2023-04-02 05:35:53,774 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 05:35:53,775 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 05:35:53,775 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 05:35:53,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 05:35:53,775 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_shared [2023-04-02 05:35:53,775 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2023-04-02 05:35:53,775 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2023-04-02 05:35:53,775 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2023-04-02 05:35:53,775 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-02 05:35:53,775 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2023-04-02 05:35:53,775 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 05:35:53,775 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-02 05:35:53,775 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-04-02 05:35:53,775 INFO L130 BoogieDeclarations]: Found specification of procedure balance_init [2023-04-02 05:35:53,775 INFO L130 BoogieDeclarations]: Found specification of procedure balance_control [2023-04-02 05:35:53,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-02 05:35:53,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 05:35:53,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 05:35:53,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 05:35:53,776 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2023-04-02 05:35:53,776 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-04-02 05:35:53,776 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2023-04-02 05:35:53,776 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2023-04-02 05:35:53,776 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2023-04-02 05:35:53,776 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2023-04-02 05:35:53,776 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2023-04-02 05:35:53,776 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2023-04-02 05:35:53,776 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2023-04-02 05:35:53,776 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2023-04-02 05:35:53,776 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_sound_tone [2023-04-02 05:35:53,776 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_status_monitor [2023-04-02 05:35:53,776 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_read_bt_packet [2023-04-02 05:35:53,776 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_battery_voltage [2023-04-02 05:35:53,776 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2023-04-02 05:35:53,777 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_bt_data_logger [2023-04-02 05:35:53,777 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts1 [2023-04-02 05:35:53,777 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_sonar_sensor [2023-04-02 05:35:53,777 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts2 [2023-04-02 05:35:53,777 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_final [2023-04-02 05:35:53,777 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-04-02 05:35:53,777 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts2 [2023-04-02 05:35:53,777 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-04-02 05:35:53,777 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts1 [2023-04-02 05:35:53,777 INFO L130 BoogieDeclarations]: Found specification of procedure write_mode_on_lcd [2023-04-02 05:35:53,777 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_Background [2023-04-02 05:35:53,777 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2023-04-02 05:35:53,777 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_Background [2023-04-02 05:35:53,777 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_schedule_jobs [2023-04-02 05:35:53,777 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_globals [2023-04-02 05:35:53,777 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_check_assumptions [2023-04-02 05:35:53,778 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_init [2023-04-02 05:35:53,778 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_check_assertions [2023-04-02 05:35:53,778 INFO L130 BoogieDeclarations]: Found specification of procedure __main [2023-04-02 05:35:53,778 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 05:35:53,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 05:35:53,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 05:35:53,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 05:35:55,349 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 05:35:55,351 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 05:36:26,545 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 05:36:26,593 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 05:36:26,593 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-02 05:36:26,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 05:36:26 BoogieIcfgContainer [2023-04-02 05:36:26,606 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 05:36:26,608 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 05:36:26,609 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 05:36:26,611 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 05:36:26,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 05:35:49" (1/3) ... [2023-04-02 05:36:26,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7de191a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 05:36:26, skipping insertion in model container [2023-04-02 05:36:26,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:35:51" (2/3) ... [2023-04-02 05:36:26,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7de191a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 05:36:26, skipping insertion in model container [2023-04-02 05:36:26,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 05:36:26" (3/3) ... [2023-04-02 05:36:26,613 INFO L112 eAbstractionObserver]: Analyzing ICFG rekcba_nxt.1.M4-2.c [2023-04-02 05:36:26,627 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 05:36:26,628 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 05:36:26,870 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 05:36:26,877 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;@26f18396, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 05:36:26,877 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 05:36:26,912 INFO L276 IsEmpty]: Start isEmpty. Operand has 12096 states, 7910 states have (on average 1.318331226295828) internal successors, (10428), 8025 states have internal predecessors, (10428), 4142 states have call successors, (4142), 39 states have call predecessors, (4142), 39 states have return successors, (4142), 4139 states have call predecessors, (4142), 4142 states have call successors, (4142) [2023-04-02 05:36:27,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4644 [2023-04-02 05:36:27,519 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:36:27,522 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, 1, 1, 1, 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 05:36:27,523 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:36:27,535 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:36:27,538 INFO L85 PathProgramCache]: Analyzing trace with hash 70252091, now seen corresponding path program 1 times [2023-04-02 05:36:27,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:36:27,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008201220] [2023-04-02 05:36:27,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:36:27,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms