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/rekh_nxt.2.M4-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:48:24,551 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:48:24,553 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:48:24,565 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:48:24,565 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:48:24,566 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:48:24,568 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:48:24,569 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:48:24,571 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:48:24,572 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:48:24,573 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:48:24,574 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:48:24,574 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:48:24,575 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:48:24,576 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:48:24,577 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:48:24,578 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:48:24,579 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:48:24,580 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:48:24,582 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:48:24,583 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:48:24,585 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:48:24,586 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:48:24,586 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:48:24,589 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 23:48:24,589 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 23:48:24,589 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 23:48:24,590 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 23:48:24,590 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 23:48:24,591 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 23:48:24,591 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:48:24,592 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:48:24,593 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:48:24,594 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:48:24,595 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:48:24,595 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:48:24,595 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:48:24,596 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:48:24,596 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:48:24,597 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:48:24,597 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:48:24,598 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 [2019-10-14 23:48:24,618 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:48:24,619 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:48:24,620 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:48:24,621 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:48:24,621 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:48:24,621 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:48:24,621 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:48:24,622 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:48:24,622 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:48:24,622 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:48:24,623 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:48:24,623 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:48:24,623 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:48:24,624 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:48:24,624 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:48:24,624 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:48:24,624 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:48:24,625 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:48:24,625 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:48:24,625 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:48:24,625 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:48:24,626 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:48:24,626 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:48:24,626 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:48:24,626 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:48:24,626 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:48:24,627 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:48:24,627 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:48:24,627 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 23:48:24,915 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:48:24,927 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:48:24,930 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:48:24,932 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:48:24,932 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:48:24,933 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/rekh_nxt.2.M4-1.c [2019-10-14 23:48:25,004 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11cbc8565/0355a581d34a48659582cc8f710136e0/FLAG2c27816b2 [2019-10-14 23:48:25,616 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:48:25,620 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/rekh_nxt.2.M4-1.c [2019-10-14 23:48:25,651 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11cbc8565/0355a581d34a48659582cc8f710136e0/FLAG2c27816b2 [2019-10-14 23:48:25,882 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11cbc8565/0355a581d34a48659582cc8f710136e0 [2019-10-14 23:48:25,891 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:48:25,893 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:48:25,893 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:48:25,894 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:48:25,897 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:48:25,898 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:48:25" (1/1) ... [2019-10-14 23:48:25,901 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bb33164 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:48:25, skipping insertion in model container [2019-10-14 23:48:25,901 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:48:25" (1/1) ... [2019-10-14 23:48:25,909 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:48:25,984 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:48:26,684 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:48:26,700 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:48:26,970 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:48:27,007 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:48:27,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:48:27 WrapperNode [2019-10-14 23:48:27,008 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:48:27,008 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:48:27,009 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:48:27,009 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:48:27,023 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:48:27" (1/1) ... [2019-10-14 23:48:27,023 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:48:27" (1/1) ... [2019-10-14 23:48:27,078 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:48:27" (1/1) ... [2019-10-14 23:48:27,079 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:48:27" (1/1) ... [2019-10-14 23:48:27,198 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:48:27" (1/1) ... [2019-10-14 23:48:27,226 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:48:27" (1/1) ... [2019-10-14 23:48:27,249 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:48:27" (1/1) ... [2019-10-14 23:48:27,275 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:48:27,275 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:48:27,276 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:48:27,276 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:48:27,277 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:48:27" (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 [2019-10-14 23:48:27,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:48:27,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:48:27,342 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2019-10-14 23:48:27,343 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_init [2019-10-14 23:48:27,343 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_control [2019-10-14 23:48:27,343 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2019-10-14 23:48:27,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2019-10-14 23:48:27,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2019-10-14 23:48:27,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_read_bt_packet [2019-10-14 23:48:27,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_battery_voltage [2019-10-14 23:48:27,344 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts1 [2019-10-14 23:48:27,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_sonar_sensor [2019-10-14 23:48:27,345 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts2 [2019-10-14 23:48:27,345 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2019-10-14 23:48:27,346 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts2 [2019-10-14 23:48:27,346 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2019-10-14 23:48:27,347 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts1 [2019-10-14 23:48:27,347 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_Background [2019-10-14 23:48:27,347 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2019-10-14 23:48:27,348 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_Background [2019-10-14 23:48:27,348 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_schedule_jobs [2019-10-14 23:48:27,348 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_globals [2019-10-14 23:48:27,348 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2019-10-14 23:48:27,348 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2019-10-14 23:48:27,349 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2019-10-14 23:48:27,349 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_assert_i0 [2019-10-14 23:48:27,350 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_init [2019-10-14 23:48:27,350 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_final [2019-10-14 23:48:27,350 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2019-10-14 23:48:27,350 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:48:27,350 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2019-10-14 23:48:27,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2019-10-14 23:48:27,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2019-10-14 23:48:27,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2019-10-14 23:48:27,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_shared [2019-10-14 23:48:27,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_bt_data_logger [2019-10-14 23:48:27,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_sound_tone [2019-10-14 23:48:27,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_status_monitor [2019-10-14 23:48:27,352 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2019-10-14 23:48:27,352 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2019-10-14 23:48:27,352 INFO L138 BoogieDeclarations]: Found implementation of procedure write_mode_on_lcd [2019-10-14 23:48:27,353 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:48:27,353 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_shared [2019-10-14 23:48:27,353 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_assert_i0 [2019-10-14 23:48:27,353 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2019-10-14 23:48:27,354 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2019-10-14 23:48:27,354 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2019-10-14 23:48:27,354 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-14 23:48:27,354 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2019-10-14 23:48:27,354 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 23:48:27,354 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-14 23:48:27,355 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-10-14 23:48:27,355 INFO L130 BoogieDeclarations]: Found specification of procedure balance_init [2019-10-14 23:48:27,355 INFO L130 BoogieDeclarations]: Found specification of procedure balance_control [2019-10-14 23:48:27,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 23:48:27,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 23:48:27,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 23:48:27,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 23:48:27,356 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-14 23:48:27,356 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-10-14 23:48:27,356 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2019-10-14 23:48:27,356 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2019-10-14 23:48:27,357 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2019-10-14 23:48:27,357 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2019-10-14 23:48:27,357 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2019-10-14 23:48:27,357 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2019-10-14 23:48:27,358 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2019-10-14 23:48:27,358 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2019-10-14 23:48:27,358 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_sound_tone [2019-10-14 23:48:27,358 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_status_monitor [2019-10-14 23:48:27,359 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_read_bt_packet [2019-10-14 23:48:27,359 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_battery_voltage [2019-10-14 23:48:27,359 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2019-10-14 23:48:27,359 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_bt_data_logger [2019-10-14 23:48:27,360 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts1 [2019-10-14 23:48:27,360 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_sonar_sensor [2019-10-14 23:48:27,360 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts2 [2019-10-14 23:48:27,360 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2019-10-14 23:48:27,360 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts2 [2019-10-14 23:48:27,361 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2019-10-14 23:48:27,361 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts1 [2019-10-14 23:48:27,361 INFO L130 BoogieDeclarations]: Found specification of procedure write_mode_on_lcd [2019-10-14 23:48:27,362 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_Background [2019-10-14 23:48:27,362 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2019-10-14 23:48:27,362 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_Background [2019-10-14 23:48:27,362 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_schedule_jobs [2019-10-14 23:48:27,362 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_globals [2019-10-14 23:48:27,363 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_init [2019-10-14 23:48:27,363 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_final [2019-10-14 23:48:27,363 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2019-10-14 23:48:27,364 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:48:27,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:48:27,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-14 23:48:27,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:48:34,240 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:48:34,240 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-14 23:48:34,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:48:34 BoogieIcfgContainer [2019-10-14 23:48:34,242 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:48:34,243 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:48:34,243 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:48:34,246 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:48:34,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:48:25" (1/3) ... [2019-10-14 23:48:34,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b8b5e11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:48:34, skipping insertion in model container [2019-10-14 23:48:34,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:48:27" (2/3) ... [2019-10-14 23:48:34,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b8b5e11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:48:34, skipping insertion in model container [2019-10-14 23:48:34,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:48:34" (3/3) ... [2019-10-14 23:48:34,250 INFO L109 eAbstractionObserver]: Analyzing ICFG rekh_nxt.2.M4-1.c [2019-10-14 23:48:34,260 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:48:34,269 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:48:34,280 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:48:34,311 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:48:34,311 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:48:34,311 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:48:34,311 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:48:34,311 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:48:34,311 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:48:34,311 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:48:34,312 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:48:34,343 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states. [2019-10-14 23:48:34,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-10-14 23:48:34,357 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:48:34,358 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] [2019-10-14 23:48:34,360 INFO L410 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:48:34,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:48:34,368 INFO L82 PathProgramCache]: Analyzing trace with hash 1797592405, now seen corresponding path program 1 times [2019-10-14 23:48:34,376 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:48:34,377 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439948542] [2019-10-14 23:48:34,377 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:48:34,377 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:48:34,377 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:48:34,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat