java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/rekcba_nxt.1.M4-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-02 15:31:23,069 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-02 15:31:23,071 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-02 15:31:23,083 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-02 15:31:23,084 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-02 15:31:23,085 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-02 15:31:23,086 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-02 15:31:23,088 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-02 15:31:23,090 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-02 15:31:23,091 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-02 15:31:23,095 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-02 15:31:23,096 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-02 15:31:23,096 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-02 15:31:23,097 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-02 15:31:23,098 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-02 15:31:23,100 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-02 15:31:23,100 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-02 15:31:23,101 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-02 15:31:23,103 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-02 15:31:23,105 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-02 15:31:23,107 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-02 15:31:23,108 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-02 15:31:23,109 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-02 15:31:23,110 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-02 15:31:23,112 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-02 15:31:23,112 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-02 15:31:23,112 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-02 15:31:23,113 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-02 15:31:23,114 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-02 15:31:23,115 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-02 15:31:23,115 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-02 15:31:23,116 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-02 15:31:23,116 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-02 15:31:23,117 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-02 15:31:23,118 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-02 15:31:23,118 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-02 15:31:23,119 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-02 15:31:23,119 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-02 15:31:23,120 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-02 15:31:23,120 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-02 15:31:23,121 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-02 15:31:23,122 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 [2019-10-02 15:31:23,137 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-02 15:31:23,137 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-02 15:31:23,138 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-02 15:31:23,138 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-02 15:31:23,139 INFO L138 SettingsManager]: * Use SBE=true [2019-10-02 15:31:23,139 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-02 15:31:23,139 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-02 15:31:23,139 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-02 15:31:23,139 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-02 15:31:23,140 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-02 15:31:23,140 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-02 15:31:23,140 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-02 15:31:23,140 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-02 15:31:23,140 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-02 15:31:23,141 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-02 15:31:23,141 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-02 15:31:23,141 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-02 15:31:23,141 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-02 15:31:23,141 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-02 15:31:23,142 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-02 15:31:23,142 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-02 15:31:23,142 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 15:31:23,142 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-02 15:31:23,142 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-02 15:31:23,143 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-02 15:31:23,143 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-02 15:31:23,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-02 15:31:23,143 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-02 15:31:23,143 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-02 15:31:23,174 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-02 15:31:23,189 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-02 15:31:23,194 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-02 15:31:23,196 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-02 15:31:23,196 INFO L275 PluginConnector]: CDTParser initialized [2019-10-02 15:31:23,197 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/rekcba_nxt.1.M4-1.c [2019-10-02 15:31:23,274 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4964f35f2/0eefb02034be49ea9e234d288e074a59/FLAG58e646492 [2019-10-02 15:31:24,152 INFO L306 CDTParser]: Found 1 translation units. [2019-10-02 15:31:24,155 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/rekcba_nxt.1.M4-1.c [2019-10-02 15:31:24,197 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4964f35f2/0eefb02034be49ea9e234d288e074a59/FLAG58e646492 [2019-10-02 15:31:24,609 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4964f35f2/0eefb02034be49ea9e234d288e074a59 [2019-10-02 15:31:24,620 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-02 15:31:24,622 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-02 15:31:24,623 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-02 15:31:24,623 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-02 15:31:24,626 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-02 15:31:24,627 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 03:31:24" (1/1) ... [2019-10-02 15:31:24,629 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7de122ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 03:31:24, skipping insertion in model container [2019-10-02 15:31:24,630 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 03:31:24" (1/1) ... [2019-10-02 15:31:24,636 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-02 15:31:24,797 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-02 15:31:26,530 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 15:31:26,552 INFO L188 MainTranslator]: Completed pre-run [2019-10-02 15:31:28,255 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 15:31:28,297 INFO L192 MainTranslator]: Completed translation [2019-10-02 15:31:28,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 03:31:28 WrapperNode [2019-10-02 15:31:28,298 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-02 15:31:28,299 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-02 15:31:28,299 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-02 15:31:28,299 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-02 15:31:28,315 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 03:31:28" (1/1) ... [2019-10-02 15:31:28,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 03:31:28" (1/1) ... [2019-10-02 15:31:28,601 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 03:31:28" (1/1) ... [2019-10-02 15:31:28,602 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 03:31:28" (1/1) ... [2019-10-02 15:31:29,243 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 03:31:28" (1/1) ... [2019-10-02 15:31:29,351 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 03:31:28" (1/1) ... [2019-10-02 15:31:29,458 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 03:31:28" (1/1) ... [2019-10-02 15:31:29,636 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-02 15:31:29,636 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-02 15:31:29,637 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-02 15:31:29,637 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-02 15:31:29,638 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 03:31:28" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 15:31:29,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-02 15:31:29,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-02 15:31:29,707 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2019-10-02 15:31:29,707 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_init [2019-10-02 15:31:29,707 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_control [2019-10-02 15:31:29,707 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2019-10-02 15:31:29,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2019-10-02 15:31:29,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2019-10-02 15:31:29,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_read_bt_packet [2019-10-02 15:31:29,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_battery_voltage [2019-10-02 15:31:29,708 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts1 [2019-10-02 15:31:29,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_sonar_sensor [2019-10-02 15:31:29,709 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts2 [2019-10-02 15:31:29,709 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_final [2019-10-02 15:31:29,709 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2019-10-02 15:31:29,710 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts2 [2019-10-02 15:31:29,710 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2019-10-02 15:31:29,710 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts1 [2019-10-02 15:31:29,710 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_Background [2019-10-02 15:31:29,712 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2019-10-02 15:31:29,712 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_Background [2019-10-02 15:31:29,712 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_schedule_jobs [2019-10-02 15:31:29,712 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_globals [2019-10-02 15:31:29,713 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2019-10-02 15:31:29,713 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2019-10-02 15:31:29,713 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2019-10-02 15:31:29,713 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_check_assumptions [2019-10-02 15:31:29,713 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_init [2019-10-02 15:31:29,713 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_check_assertions [2019-10-02 15:31:29,714 INFO L138 BoogieDeclarations]: Found implementation of procedure __main [2019-10-02 15:31:29,714 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-02 15:31:29,714 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2019-10-02 15:31:29,714 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2019-10-02 15:31:29,715 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2019-10-02 15:31:29,715 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2019-10-02 15:31:29,715 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_shared [2019-10-02 15:31:29,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_bt_data_logger [2019-10-02 15:31:29,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_sound_tone [2019-10-02 15:31:29,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_status_monitor [2019-10-02 15:31:29,716 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2019-10-02 15:31:29,716 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2019-10-02 15:31:29,716 INFO L138 BoogieDeclarations]: Found implementation of procedure write_mode_on_lcd [2019-10-02 15:31:29,716 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-02 15:31:29,716 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_shared [2019-10-02 15:31:29,717 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2019-10-02 15:31:29,717 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2019-10-02 15:31:29,717 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2019-10-02 15:31:29,717 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-02 15:31:29,717 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2019-10-02 15:31:29,717 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-02 15:31:29,718 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-02 15:31:29,718 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-10-02 15:31:29,718 INFO L130 BoogieDeclarations]: Found specification of procedure balance_init [2019-10-02 15:31:29,718 INFO L130 BoogieDeclarations]: Found specification of procedure balance_control [2019-10-02 15:31:29,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-02 15:31:29,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-02 15:31:29,719 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-02 15:31:29,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-02 15:31:29,719 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-02 15:31:29,719 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-10-02 15:31:29,719 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2019-10-02 15:31:29,720 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2019-10-02 15:31:29,720 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2019-10-02 15:31:29,720 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2019-10-02 15:31:29,720 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2019-10-02 15:31:29,720 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2019-10-02 15:31:29,720 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2019-10-02 15:31:29,721 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2019-10-02 15:31:29,721 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_sound_tone [2019-10-02 15:31:29,721 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_status_monitor [2019-10-02 15:31:29,721 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_read_bt_packet [2019-10-02 15:31:29,721 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_battery_voltage [2019-10-02 15:31:29,722 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2019-10-02 15:31:29,722 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_bt_data_logger [2019-10-02 15:31:29,722 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts1 [2019-10-02 15:31:29,722 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_sonar_sensor [2019-10-02 15:31:29,722 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts2 [2019-10-02 15:31:29,723 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_final [2019-10-02 15:31:29,723 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2019-10-02 15:31:29,723 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts2 [2019-10-02 15:31:29,723 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2019-10-02 15:31:29,723 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts1 [2019-10-02 15:31:29,724 INFO L130 BoogieDeclarations]: Found specification of procedure write_mode_on_lcd [2019-10-02 15:31:29,724 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_Background [2019-10-02 15:31:29,724 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2019-10-02 15:31:29,724 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_Background [2019-10-02 15:31:29,724 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_schedule_jobs [2019-10-02 15:31:29,724 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_globals [2019-10-02 15:31:29,725 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_check_assumptions [2019-10-02 15:31:29,725 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_init [2019-10-02 15:31:29,725 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_check_assertions [2019-10-02 15:31:29,725 INFO L130 BoogieDeclarations]: Found specification of procedure __main [2019-10-02 15:31:29,725 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-02 15:31:29,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-02 15:31:29,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-02 15:31:29,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-02 15:31:55,711 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-02 15:31:55,711 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-02 15:31:55,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 03:31:55 BoogieIcfgContainer [2019-10-02 15:31:55,715 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-02 15:31:55,716 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-02 15:31:55,717 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-02 15:31:55,720 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-02 15:31:55,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.10 03:31:24" (1/3) ... [2019-10-02 15:31:55,721 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e18c797 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 03:31:55, skipping insertion in model container [2019-10-02 15:31:55,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 03:31:28" (2/3) ... [2019-10-02 15:31:55,722 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e18c797 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 03:31:55, skipping insertion in model container [2019-10-02 15:31:55,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 03:31:55" (3/3) ... [2019-10-02 15:31:55,724 INFO L109 eAbstractionObserver]: Analyzing ICFG rekcba_nxt.1.M4-1.c [2019-10-02 15:31:55,734 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-02 15:31:55,746 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-02 15:31:55,765 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-02 15:31:55,825 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-10-02 15:31:55,827 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-02 15:31:55,827 INFO L378 AbstractCegarLoop]: Hoare is true [2019-10-02 15:31:55,827 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-02 15:31:55,827 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-02 15:31:55,828 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-02 15:31:55,828 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-02 15:31:55,828 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-02 15:31:55,828 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-02 15:31:55,928 INFO L276 IsEmpty]: Start isEmpty. Operand 4246 states. [2019-10-02 15:31:56,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2622 [2019-10-02 15:31:56,376 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 15:31:56,381 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2019-10-02 15:31:56,385 INFO L418 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 15:31:56,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 15:31:56,394 INFO L82 PathProgramCache]: Analyzing trace with hash 1788523670, now seen corresponding path program 1 times [2019-10-02 15:31:56,396 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 15:31:56,397 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 15:31:56,511 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 15:31:56,512 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 15:31:56,512 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 15:39:27,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat