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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/rekh_nxt.1.M4-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 03:54:17,645 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 03:54:17,647 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 03:54:17,658 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 03:54:17,658 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 03:54:17,659 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 03:54:17,663 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 03:54:17,665 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 03:54:17,667 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 03:54:17,667 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 03:54:17,668 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 03:54:17,669 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 03:54:17,670 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 03:54:17,671 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 03:54:17,672 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 03:54:17,673 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 03:54:17,674 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 03:54:17,674 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 03:54:17,676 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 03:54:17,678 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 03:54:17,680 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 03:54:17,681 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 03:54:17,682 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 03:54:17,683 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 03:54:17,685 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 03:54:17,686 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 03:54:17,686 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 03:54:17,687 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 03:54:17,687 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 03:54:17,689 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 03:54:17,689 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 03:54:17,690 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 03:54:17,690 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 03:54:17,691 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 03:54:17,692 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 03:54:17,692 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 03:54:17,693 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 03:54:17,693 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 03:54:17,694 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 03:54:17,695 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 03:54:17,695 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 03:54:17,696 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-10-03 03:54:17,712 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 03:54:17,712 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 03:54:17,712 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 03:54:17,713 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 03:54:17,713 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 03:54:17,713 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 03:54:17,714 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 03:54:17,714 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 03:54:17,714 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 03:54:17,714 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 03:54:17,715 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 03:54:17,715 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 03:54:17,715 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 03:54:17,715 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 03:54:17,716 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 03:54:17,716 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 03:54:17,716 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 03:54:17,716 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 03:54:17,716 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 03:54:17,716 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 03:54:17,717 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 03:54:17,717 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 03:54:17,717 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 03:54:17,717 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 03:54:17,718 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 03:54:17,718 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 03:54:17,718 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 03:54:17,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 03:54:17,718 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 03:54:17,719 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 03:54:17,746 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 03:54:17,758 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 03:54:17,761 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 03:54:17,763 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 03:54:17,763 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 03:54:17,764 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/rekh_nxt.1.M4-2.c [2019-10-03 03:54:17,820 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2efa1c8ce/823b12c93a3a489eb136735fb5932246/FLAGde5035899 [2019-10-03 03:54:18,391 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 03:54:18,392 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/rekh_nxt.1.M4-2.c [2019-10-03 03:54:18,426 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2efa1c8ce/823b12c93a3a489eb136735fb5932246/FLAGde5035899 [2019-10-03 03:54:18,637 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2efa1c8ce/823b12c93a3a489eb136735fb5932246 [2019-10-03 03:54:18,646 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 03:54:18,647 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 03:54:18,648 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 03:54:18,649 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 03:54:18,652 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 03:54:18,653 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 03:54:18" (1/1) ... [2019-10-03 03:54:18,656 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@605515df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 03:54:18, skipping insertion in model container [2019-10-03 03:54:18,656 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 03:54:18" (1/1) ... [2019-10-03 03:54:18,663 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 03:54:18,738 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 03:54:19,490 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 03:54:19,516 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 03:54:19,825 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 03:54:19,901 INFO L192 MainTranslator]: Completed translation [2019-10-03 03:54:19,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 03:54:19 WrapperNode [2019-10-03 03:54:19,902 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 03:54:19,903 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 03:54:19,904 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 03:54:19,904 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 03:54:19,926 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 03:54:19" (1/1) ... [2019-10-03 03:54:19,928 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 03:54:19" (1/1) ... [2019-10-03 03:54:20,020 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 03:54:19" (1/1) ... [2019-10-03 03:54:20,020 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 03:54:19" (1/1) ... [2019-10-03 03:54:20,163 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 03:54:19" (1/1) ... [2019-10-03 03:54:20,192 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 03:54:19" (1/1) ... [2019-10-03 03:54:20,219 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 03:54:19" (1/1) ... [2019-10-03 03:54:20,250 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 03:54:20,250 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 03:54:20,251 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 03:54:20,251 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 03:54:20,252 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 03:54:19" (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 [2019-10-03 03:54:20,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 03:54:20,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 03:54:20,325 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2019-10-03 03:54:20,326 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_init [2019-10-03 03:54:20,326 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_control [2019-10-03 03:54:20,326 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2019-10-03 03:54:20,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2019-10-03 03:54:20,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2019-10-03 03:54:20,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_read_bt_packet [2019-10-03 03:54:20,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_battery_voltage [2019-10-03 03:54:20,327 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts1 [2019-10-03 03:54:20,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_sonar_sensor [2019-10-03 03:54:20,327 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts2 [2019-10-03 03:54:20,328 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_final [2019-10-03 03:54:20,328 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2019-10-03 03:54:20,328 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts2 [2019-10-03 03:54:20,328 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2019-10-03 03:54:20,329 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts1 [2019-10-03 03:54:20,329 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_Background [2019-10-03 03:54:20,329 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2019-10-03 03:54:20,329 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_Background [2019-10-03 03:54:20,329 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_schedule_jobs [2019-10-03 03:54:20,330 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_globals [2019-10-03 03:54:20,330 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2019-10-03 03:54:20,330 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2019-10-03 03:54:20,330 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2019-10-03 03:54:20,330 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_init [2019-10-03 03:54:20,331 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2019-10-03 03:54:20,331 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 03:54:20,331 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2019-10-03 03:54:20,331 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2019-10-03 03:54:20,331 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2019-10-03 03:54:20,331 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2019-10-03 03:54:20,332 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_shared [2019-10-03 03:54:20,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_bt_data_logger [2019-10-03 03:54:20,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_sound_tone [2019-10-03 03:54:20,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_status_monitor [2019-10-03 03:54:20,332 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2019-10-03 03:54:20,332 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2019-10-03 03:54:20,333 INFO L138 BoogieDeclarations]: Found implementation of procedure write_mode_on_lcd [2019-10-03 03:54:20,333 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 03:54:20,333 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_shared [2019-10-03 03:54:20,333 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2019-10-03 03:54:20,333 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2019-10-03 03:54:20,334 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2019-10-03 03:54:20,334 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-03 03:54:20,334 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2019-10-03 03:54:20,334 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 03:54:20,334 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-03 03:54:20,335 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-10-03 03:54:20,335 INFO L130 BoogieDeclarations]: Found specification of procedure balance_init [2019-10-03 03:54:20,335 INFO L130 BoogieDeclarations]: Found specification of procedure balance_control [2019-10-03 03:54:20,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 03:54:20,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 03:54:20,335 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 03:54:20,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 03:54:20,336 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-03 03:54:20,336 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-10-03 03:54:20,336 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2019-10-03 03:54:20,336 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2019-10-03 03:54:20,336 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2019-10-03 03:54:20,337 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2019-10-03 03:54:20,337 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2019-10-03 03:54:20,337 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2019-10-03 03:54:20,337 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2019-10-03 03:54:20,337 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2019-10-03 03:54:20,338 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_sound_tone [2019-10-03 03:54:20,338 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_status_monitor [2019-10-03 03:54:20,338 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_read_bt_packet [2019-10-03 03:54:20,338 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_battery_voltage [2019-10-03 03:54:20,338 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2019-10-03 03:54:20,339 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_bt_data_logger [2019-10-03 03:54:20,339 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts1 [2019-10-03 03:54:20,339 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_sonar_sensor [2019-10-03 03:54:20,339 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts2 [2019-10-03 03:54:20,339 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_final [2019-10-03 03:54:20,339 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2019-10-03 03:54:20,340 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts2 [2019-10-03 03:54:20,340 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2019-10-03 03:54:20,340 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts1 [2019-10-03 03:54:20,340 INFO L130 BoogieDeclarations]: Found specification of procedure write_mode_on_lcd [2019-10-03 03:54:20,340 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_Background [2019-10-03 03:54:20,341 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2019-10-03 03:54:20,341 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_Background [2019-10-03 03:54:20,341 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_schedule_jobs [2019-10-03 03:54:20,341 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_globals [2019-10-03 03:54:20,341 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_init [2019-10-03 03:54:20,341 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2019-10-03 03:54:20,342 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 03:54:20,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 03:54:20,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-03 03:54:20,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 03:54:27,525 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 03:54:27,526 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-03 03:54:27,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 03:54:27 BoogieIcfgContainer [2019-10-03 03:54:27,527 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 03:54:27,529 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 03:54:27,529 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 03:54:27,533 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 03:54:27,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 03:54:18" (1/3) ... [2019-10-03 03:54:27,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29b7b6ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 03:54:27, skipping insertion in model container [2019-10-03 03:54:27,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 03:54:19" (2/3) ... [2019-10-03 03:54:27,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29b7b6ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 03:54:27, skipping insertion in model container [2019-10-03 03:54:27,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 03:54:27" (3/3) ... [2019-10-03 03:54:27,539 INFO L109 eAbstractionObserver]: Analyzing ICFG rekh_nxt.1.M4-2.c [2019-10-03 03:54:27,549 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 03:54:27,558 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 03:54:27,575 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 03:54:27,602 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 03:54:27,602 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 03:54:27,603 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 03:54:27,603 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 03:54:27,603 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 03:54:27,603 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 03:54:27,603 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 03:54:27,603 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 03:54:27,631 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states. [2019-10-03 03:54:27,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2943 [2019-10-03 03:54:27,807 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 03:54:27,810 INFO L411 BasicCegarLoop]: trace histogram [108, 108, 108, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 12, 12, 12, 12, 12, 12, 12, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 03:54:27,812 INFO L418 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 03:54:27,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 03:54:27,818 INFO L82 PathProgramCache]: Analyzing trace with hash 139427707, now seen corresponding path program 1 times [2019-10-03 03:54:27,821 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 03:54:27,878 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 03:54:27,878 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 03:54:27,878 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 03:54:27,878 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 03:54:28,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat