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 --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/seq-mthreaded/rekcba_nxt.1.M4-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:25:08,499 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:25:08,501 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:25:08,515 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:25:08,516 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:25:08,517 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:25:08,518 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:25:08,520 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:25:08,522 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:25:08,523 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:25:08,524 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:25:08,525 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:25:08,526 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:25:08,527 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:25:08,528 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:25:08,529 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:25:08,530 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:25:08,531 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:25:08,533 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:25:08,536 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:25:08,537 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:25:08,539 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:25:08,540 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:25:08,541 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:25:08,544 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:25:08,544 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:25:08,544 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:25:08,545 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:25:08,546 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:25:08,547 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:25:08,547 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:25:08,548 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:25:08,549 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:25:08,550 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:25:08,551 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:25:08,551 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:25:08,552 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:25:08,552 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:25:08,553 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:25:08,554 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:25:08,554 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:25:08,555 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 [2019-10-15 01:25:08,575 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:25:08,575 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:25:08,577 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:25:08,578 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:25:08,578 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:25:08,578 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:25:08,578 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:25:08,579 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:25:08,579 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:25:08,579 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:25:08,580 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:25:08,580 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:25:08,580 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:25:08,580 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:25:08,581 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:25:08,581 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:25:08,581 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:25:08,581 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:25:08,581 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:25:08,582 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:25:08,582 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:25:08,583 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:25:08,584 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:25:08,584 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:25:08,584 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:25:08,584 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:25:08,585 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:25:08,585 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:25:08,585 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:25:08,887 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:25:08,901 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:25:08,904 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:25:08,906 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:25:08,906 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:25:08,907 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/rekcba_nxt.1.M4-1.c [2019-10-15 01:25:08,987 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecf9acd7b/32f72d6ba30b4dfa8bdca81f931594d7/FLAGcc19a2de5 [2019-10-15 01:25:09,865 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:25:09,865 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/rekcba_nxt.1.M4-1.c [2019-10-15 01:25:09,918 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecf9acd7b/32f72d6ba30b4dfa8bdca81f931594d7/FLAGcc19a2de5 [2019-10-15 01:25:10,343 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecf9acd7b/32f72d6ba30b4dfa8bdca81f931594d7 [2019-10-15 01:25:10,354 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:25:10,356 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:25:10,357 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:25:10,357 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:25:10,362 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:25:10,363 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:25:10" (1/1) ... [2019-10-15 01:25:10,366 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a513961 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:25:10, skipping insertion in model container [2019-10-15 01:25:10,366 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:25:10" (1/1) ... [2019-10-15 01:25:10,373 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:25:10,557 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:25:12,118 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:25:12,147 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:25:13,175 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:25:13,217 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:25:13,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:25:13 WrapperNode [2019-10-15 01:25:13,218 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:25:13,219 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:25:13,219 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:25:13,219 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:25:13,236 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:25:13" (1/1) ... [2019-10-15 01:25:13,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:25:13" (1/1) ... [2019-10-15 01:25:13,508 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:25:13" (1/1) ... [2019-10-15 01:25:13,509 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:25:13" (1/1) ... [2019-10-15 01:25:15,098 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:25:13" (1/1) ... [2019-10-15 01:25:15,204 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:25:13" (1/1) ... [2019-10-15 01:25:15,312 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:25:13" (1/1) ... [2019-10-15 01:25:15,469 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:25:15,470 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:25:15,470 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:25:15,470 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:25:15,472 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:25:13" (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 [2019-10-15 01:25:15,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:25:15,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:25:15,559 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2019-10-15 01:25:15,559 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_init [2019-10-15 01:25:15,559 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_control [2019-10-15 01:25:15,559 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2019-10-15 01:25:15,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2019-10-15 01:25:15,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2019-10-15 01:25:15,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_read_bt_packet [2019-10-15 01:25:15,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_battery_voltage [2019-10-15 01:25:15,562 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts1 [2019-10-15 01:25:15,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_sonar_sensor [2019-10-15 01:25:15,562 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts2 [2019-10-15 01:25:15,563 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_final [2019-10-15 01:25:15,564 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2019-10-15 01:25:15,564 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts2 [2019-10-15 01:25:15,565 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2019-10-15 01:25:15,565 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts1 [2019-10-15 01:25:15,565 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_Background [2019-10-15 01:25:15,566 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2019-10-15 01:25:15,566 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_Background [2019-10-15 01:25:15,566 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_schedule_jobs [2019-10-15 01:25:15,566 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_globals [2019-10-15 01:25:15,567 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2019-10-15 01:25:15,567 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2019-10-15 01:25:15,567 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2019-10-15 01:25:15,568 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_check_assumptions [2019-10-15 01:25:15,568 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_init [2019-10-15 01:25:15,568 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_check_assertions [2019-10-15 01:25:15,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __main [2019-10-15 01:25:15,569 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:25:15,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2019-10-15 01:25:15,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2019-10-15 01:25:15,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2019-10-15 01:25:15,570 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2019-10-15 01:25:15,570 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_shared [2019-10-15 01:25:15,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_bt_data_logger [2019-10-15 01:25:15,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_sound_tone [2019-10-15 01:25:15,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_status_monitor [2019-10-15 01:25:15,571 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2019-10-15 01:25:15,571 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2019-10-15 01:25:15,571 INFO L138 BoogieDeclarations]: Found implementation of procedure write_mode_on_lcd [2019-10-15 01:25:15,571 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:25:15,572 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_shared [2019-10-15 01:25:15,572 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2019-10-15 01:25:15,572 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2019-10-15 01:25:15,572 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2019-10-15 01:25:15,573 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-15 01:25:15,573 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2019-10-15 01:25:15,573 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:25:15,574 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-15 01:25:15,574 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-10-15 01:25:15,574 INFO L130 BoogieDeclarations]: Found specification of procedure balance_init [2019-10-15 01:25:15,574 INFO L130 BoogieDeclarations]: Found specification of procedure balance_control [2019-10-15 01:25:15,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:25:15,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:25:15,575 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:25:15,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:25:15,575 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-15 01:25:15,575 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-10-15 01:25:15,575 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2019-10-15 01:25:15,575 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2019-10-15 01:25:15,576 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2019-10-15 01:25:15,576 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2019-10-15 01:25:15,576 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2019-10-15 01:25:15,576 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2019-10-15 01:25:15,577 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2019-10-15 01:25:15,577 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2019-10-15 01:25:15,577 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_sound_tone [2019-10-15 01:25:15,577 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_status_monitor [2019-10-15 01:25:15,577 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_read_bt_packet [2019-10-15 01:25:15,577 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_battery_voltage [2019-10-15 01:25:15,577 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2019-10-15 01:25:15,578 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_bt_data_logger [2019-10-15 01:25:15,578 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts1 [2019-10-15 01:25:15,579 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_sonar_sensor [2019-10-15 01:25:15,579 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts2 [2019-10-15 01:25:15,579 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_final [2019-10-15 01:25:15,579 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2019-10-15 01:25:15,580 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts2 [2019-10-15 01:25:15,580 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2019-10-15 01:25:15,580 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts1 [2019-10-15 01:25:15,580 INFO L130 BoogieDeclarations]: Found specification of procedure write_mode_on_lcd [2019-10-15 01:25:15,580 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_Background [2019-10-15 01:25:15,581 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2019-10-15 01:25:15,581 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_Background [2019-10-15 01:25:15,581 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_schedule_jobs [2019-10-15 01:25:15,582 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_globals [2019-10-15 01:25:15,582 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_check_assumptions [2019-10-15 01:25:15,582 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_init [2019-10-15 01:25:15,583 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_check_assertions [2019-10-15 01:25:15,583 INFO L130 BoogieDeclarations]: Found specification of procedure __main [2019-10-15 01:25:15,583 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:25:15,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:25:15,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:25:15,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:25:40,250 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:25:40,250 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-15 01:25:40,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:25:40 BoogieIcfgContainer [2019-10-15 01:25:40,254 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:25:40,255 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:25:40,255 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:25:40,259 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:25:40,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:25:10" (1/3) ... [2019-10-15 01:25:40,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2288a264 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:25:40, skipping insertion in model container [2019-10-15 01:25:40,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:25:13" (2/3) ... [2019-10-15 01:25:40,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2288a264 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:25:40, skipping insertion in model container [2019-10-15 01:25:40,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:25:40" (3/3) ... [2019-10-15 01:25:40,264 INFO L109 eAbstractionObserver]: Analyzing ICFG rekcba_nxt.1.M4-1.c [2019-10-15 01:25:40,274 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:25:40,288 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:25:40,301 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:25:40,359 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:25:40,360 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:25:40,360 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:25:40,360 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:25:40,360 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:25:40,360 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:25:40,360 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:25:40,361 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:25:40,451 INFO L276 IsEmpty]: Start isEmpty. Operand 4246 states. [2019-10-15 01:25:40,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2622 [2019-10-15 01:25:40,618 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:25:40,621 INFO L380 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] [2019-10-15 01:25:40,624 INFO L410 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:25:40,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:25:40,632 INFO L82 PathProgramCache]: Analyzing trace with hash 1788523670, now seen corresponding path program 1 times [2019-10-15 01:25:40,641 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:25:40,642 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40424233] [2019-10-15 01:25:40,643 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:25:40,643 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:25:40,644 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY