/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.2.M4-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 01:38:42,044 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 01:38:42,045 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 01:38:42,079 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 01:38:42,080 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 01:38:42,083 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 01:38:42,086 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 01:38:42,088 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 01:38:42,089 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 01:38:42,093 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 01:38:42,095 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 01:38:42,096 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 01:38:42,096 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 01:38:42,098 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 01:38:42,100 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 01:38:42,101 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 01:38:42,101 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 01:38:42,102 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 01:38:42,103 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 01:38:42,107 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 01:38:42,107 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 01:38:42,108 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 01:38:42,109 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 01:38:42,110 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 01:38:42,116 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 01:38:42,116 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 01:38:42,116 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 01:38:42,117 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 01:38:42,118 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 01:38:42,118 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 01:38:42,118 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 01:38:42,119 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 01:38:42,120 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 01:38:42,120 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 01:38:42,120 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 01:38:42,121 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 01:38:42,121 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 01:38:42,121 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 01:38:42,121 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 01:38:42,122 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 01:38:42,122 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 01:38:42,123 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 [2023-03-31 01:38:42,142 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 01:38:42,142 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 01:38:42,143 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 01:38:42,143 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 01:38:42,144 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 01:38:42,144 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 01:38:42,144 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-31 01:38:42,144 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-31 01:38:42,144 INFO L138 SettingsManager]: * Use SBE=true [2023-03-31 01:38:42,145 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 01:38:42,145 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 01:38:42,145 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 01:38:42,145 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 01:38:42,145 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 01:38:42,146 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 01:38:42,146 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 01:38:42,146 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 01:38:42,146 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 01:38:42,146 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 01:38:42,146 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 01:38:42,146 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 01:38:42,146 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 01:38:42,146 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-31 01:38:42,147 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 01:38:42,147 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 01:38:42,147 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 01:38:42,147 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 01:38:42,147 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 01:38:42,147 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-31 01:38:42,147 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 01:38:42,148 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-31 01:38:42,148 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 01:38:42,148 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-31 01:38:42,148 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-31 01:38:42,148 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-31 01:38:42,148 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-03-31 01:38:42,336 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 01:38:42,356 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 01:38:42,358 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 01:38:42,359 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 01:38:42,359 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 01:38:42,360 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M4-1.c [2023-03-31 01:38:43,314 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 01:38:43,633 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 01:38:43,633 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M4-1.c [2023-03-31 01:38:43,664 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29cf1b978/9448e7b8b11a4b65a76345d02795d864/FLAGb80f766dc [2023-03-31 01:38:43,677 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29cf1b978/9448e7b8b11a4b65a76345d02795d864 [2023-03-31 01:38:43,679 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 01:38:43,680 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 01:38:43,682 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 01:38:43,682 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 01:38:43,684 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 01:38:43,685 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 01:38:43" (1/1) ... [2023-03-31 01:38:43,686 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77967c55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:38:43, skipping insertion in model container [2023-03-31 01:38:43,686 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 01:38:43" (1/1) ... [2023-03-31 01:38:43,691 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 01:38:43,803 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 01:38:43,965 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.2.M4-1.c[2195,2208] [2023-03-31 01:38:44,770 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 01:38:44,791 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 01:38:44,808 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.2.M4-1.c[2195,2208] [2023-03-31 01:38:45,397 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 01:38:45,422 INFO L208 MainTranslator]: Completed translation [2023-03-31 01:38:45,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:38:45 WrapperNode [2023-03-31 01:38:45,423 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 01:38:45,424 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 01:38:45,424 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 01:38:45,424 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 01:38:45,433 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:38:45" (1/1) ... [2023-03-31 01:38:45,433 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:38:45" (1/1) ... [2023-03-31 01:38:45,844 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:38:45" (1/1) ... [2023-03-31 01:38:45,844 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:38:45" (1/1) ... [2023-03-31 01:38:46,287 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:38:45" (1/1) ... [2023-03-31 01:38:46,343 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:38:45" (1/1) ... [2023-03-31 01:38:46,493 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:38:45" (1/1) ... [2023-03-31 01:38:46,537 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:38:45" (1/1) ... [2023-03-31 01:38:46,691 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 01:38:46,691 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 01:38:46,692 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 01:38:46,692 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 01:38:46,692 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:38:45" (1/1) ... [2023-03-31 01:38:46,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 01:38:46,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 01:38:46,716 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) [2023-03-31 01:38:46,724 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 [2023-03-31 01:38:46,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 01:38:46,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 01:38:46,748 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 01:38:46,748 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-03-31 01:38:46,748 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-03-31 01:38:46,748 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_init [2023-03-31 01:38:46,748 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_control [2023-03-31 01:38:46,748 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2023-03-31 01:38:46,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2023-03-31 01:38:46,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2023-03-31 01:38:46,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_read_bt_packet [2023-03-31 01:38:46,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_battery_voltage [2023-03-31 01:38:46,749 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts1 [2023-03-31 01:38:46,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_sonar_sensor [2023-03-31 01:38:46,749 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts2 [2023-03-31 01:38:46,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-03-31 01:38:46,749 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts2 [2023-03-31 01:38:46,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-03-31 01:38:46,749 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts1 [2023-03-31 01:38:46,749 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_Background [2023-03-31 01:38:46,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2023-03-31 01:38:46,749 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_Background [2023-03-31 01:38:46,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_schedule_jobs [2023-03-31 01:38:46,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_globals [2023-03-31 01:38:46,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2023-03-31 01:38:46,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2023-03-31 01:38:46,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2023-03-31 01:38:46,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_assert_i0 [2023-03-31 01:38:46,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_check_assumptions [2023-03-31 01:38:46,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_init [2023-03-31 01:38:46,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_final [2023-03-31 01:38:46,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_check_assertions [2023-03-31 01:38:46,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __main [2023-03-31 01:38:46,750 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 01:38:46,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2023-03-31 01:38:46,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2023-03-31 01:38:46,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2023-03-31 01:38:46,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2023-03-31 01:38:46,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_shared [2023-03-31 01:38:46,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_bt_data_logger [2023-03-31 01:38:46,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_sound_tone [2023-03-31 01:38:46,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_status_monitor [2023-03-31 01:38:46,751 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2023-03-31 01:38:46,751 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2023-03-31 01:38:46,751 INFO L138 BoogieDeclarations]: Found implementation of procedure write_mode_on_lcd [2023-03-31 01:38:46,751 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 01:38:46,751 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 01:38:46,751 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 01:38:46,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 01:38:46,752 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_shared [2023-03-31 01:38:46,752 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_assert_i0 [2023-03-31 01:38:46,752 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2023-03-31 01:38:46,752 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2023-03-31 01:38:46,752 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2023-03-31 01:38:46,752 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-03-31 01:38:46,753 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2023-03-31 01:38:46,753 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 01:38:46,753 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-03-31 01:38:46,753 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-03-31 01:38:46,753 INFO L130 BoogieDeclarations]: Found specification of procedure balance_init [2023-03-31 01:38:46,753 INFO L130 BoogieDeclarations]: Found specification of procedure balance_control [2023-03-31 01:38:46,753 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-03-31 01:38:46,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 01:38:46,754 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 01:38:46,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 01:38:46,754 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2023-03-31 01:38:46,754 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-03-31 01:38:46,754 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2023-03-31 01:38:46,754 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2023-03-31 01:38:46,754 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2023-03-31 01:38:46,754 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2023-03-31 01:38:46,754 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2023-03-31 01:38:46,754 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2023-03-31 01:38:46,754 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2023-03-31 01:38:46,754 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2023-03-31 01:38:46,754 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_sound_tone [2023-03-31 01:38:46,754 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_status_monitor [2023-03-31 01:38:46,754 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_read_bt_packet [2023-03-31 01:38:46,754 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_battery_voltage [2023-03-31 01:38:46,755 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2023-03-31 01:38:46,755 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_bt_data_logger [2023-03-31 01:38:46,755 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts1 [2023-03-31 01:38:46,755 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_sonar_sensor [2023-03-31 01:38:46,755 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts2 [2023-03-31 01:38:46,755 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-03-31 01:38:46,755 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts2 [2023-03-31 01:38:46,755 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-03-31 01:38:46,756 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts1 [2023-03-31 01:38:46,756 INFO L130 BoogieDeclarations]: Found specification of procedure write_mode_on_lcd [2023-03-31 01:38:46,756 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_Background [2023-03-31 01:38:46,756 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2023-03-31 01:38:46,756 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_Background [2023-03-31 01:38:46,756 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_schedule_jobs [2023-03-31 01:38:46,757 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_globals [2023-03-31 01:38:46,757 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_check_assumptions [2023-03-31 01:38:46,757 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_init [2023-03-31 01:38:46,757 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_final [2023-03-31 01:38:46,757 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_check_assertions [2023-03-31 01:38:46,757 INFO L130 BoogieDeclarations]: Found specification of procedure __main [2023-03-31 01:38:46,757 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 01:38:46,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 01:38:46,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 01:38:46,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 01:38:48,255 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 01:38:48,258 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 01:39:19,686 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 01:39:19,726 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 01:39:19,726 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-03-31 01:39:19,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 01:39:19 BoogieIcfgContainer [2023-03-31 01:39:19,738 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 01:39:19,741 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 01:39:19,741 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 01:39:19,743 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 01:39:19,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 01:38:43" (1/3) ... [2023-03-31 01:39:19,744 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6187d01c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 01:39:19, skipping insertion in model container [2023-03-31 01:39:19,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:38:45" (2/3) ... [2023-03-31 01:39:19,744 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6187d01c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 01:39:19, skipping insertion in model container [2023-03-31 01:39:19,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 01:39:19" (3/3) ... [2023-03-31 01:39:19,745 INFO L112 eAbstractionObserver]: Analyzing ICFG rekcba_nxt.2.M4-1.c [2023-03-31 01:39:19,760 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 01:39:19,760 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 01:39:20,009 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 01:39:20,016 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;@58f98965, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-03-31 01:39:20,016 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 01:39:20,050 INFO L276 IsEmpty]: Start isEmpty. Operand has 12323 states, 8028 states have (on average 1.3143996013951171) internal successors, (10552), 8143 states have internal predecessors, (10552), 4250 states have call successors, (4250), 40 states have call predecessors, (4250), 40 states have return successors, (4250), 4247 states have call predecessors, (4250), 4250 states have call successors, (4250) [2023-03-31 01:39:20,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4640 [2023-03-31 01:39:20,598 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:39:20,602 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2023-03-31 01:39:20,603 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:39:20,616 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:39:20,621 INFO L85 PathProgramCache]: Analyzing trace with hash -187605765, now seen corresponding path program 1 times [2023-03-31 01:39:20,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:39:20,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598159264] [2023-03-31 01:39:20,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:39:20,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms