/usr/bin/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.M1-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 01:09:03,878 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 01:09:03,880 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 01:09:03,892 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 01:09:03,892 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 01:09:03,893 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 01:09:03,894 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 01:09:03,896 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 01:09:03,898 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 01:09:03,899 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 01:09:03,899 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 01:09:03,900 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 01:09:03,901 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 01:09:03,902 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 01:09:03,902 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 01:09:03,903 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 01:09:03,904 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 01:09:03,905 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 01:09:03,906 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 01:09:03,908 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 01:09:03,910 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 01:09:03,911 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 01:09:03,912 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 01:09:03,912 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 01:09:03,914 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 01:09:03,915 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 01:09:03,915 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 01:09:03,916 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 01:09:03,916 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 01:09:03,917 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 01:09:03,917 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 01:09:03,918 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 01:09:03,918 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 01:09:03,921 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 01:09:03,922 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 01:09:03,922 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 01:09:03,923 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 01:09:03,923 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 01:09:03,923 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 01:09:03,927 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 01:09:03,927 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 01:09:03,928 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 [2019-11-07 01:09:03,951 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 01:09:03,951 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 01:09:03,954 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 01:09:03,954 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 01:09:03,954 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 01:09:03,954 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 01:09:03,955 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 01:09:03,957 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 01:09:03,957 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 01:09:03,957 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 01:09:03,957 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 01:09:03,957 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 01:09:03,957 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 01:09:03,957 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 01:09:03,957 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 01:09:03,958 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 01:09:03,959 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 01:09:03,960 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 01:09:03,960 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 01:09:03,960 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 01:09:03,960 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 01:09:03,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 01:09:03,961 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 01:09:03,961 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 01:09:03,961 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 01:09:03,961 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 01:09:03,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 01:09:03,962 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 01:09:03,962 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 [2019-11-07 01:09:04,213 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 01:09:04,226 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 01:09:04,232 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 01:09:04,234 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 01:09:04,234 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 01:09:04,235 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/rekcba_nxt.1.M1-2.c [2019-11-07 01:09:04,303 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/476a8ee15/c58569e74da64575906af8b314d08cde/FLAG06afb9e74 [2019-11-07 01:09:04,862 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 01:09:04,862 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/rekcba_nxt.1.M1-2.c [2019-11-07 01:09:04,882 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/476a8ee15/c58569e74da64575906af8b314d08cde/FLAG06afb9e74 [2019-11-07 01:09:05,047 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/476a8ee15/c58569e74da64575906af8b314d08cde [2019-11-07 01:09:05,055 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 01:09:05,057 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 01:09:05,058 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 01:09:05,058 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 01:09:05,061 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 01:09:05,062 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:09:05" (1/1) ... [2019-11-07 01:09:05,065 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22e2c651 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:09:05, skipping insertion in model container [2019-11-07 01:09:05,065 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:09:05" (1/1) ... [2019-11-07 01:09:05,073 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 01:09:05,130 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 01:09:05,845 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 01:09:05,871 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 01:09:06,132 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 01:09:06,178 INFO L192 MainTranslator]: Completed translation [2019-11-07 01:09:06,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:09:06 WrapperNode [2019-11-07 01:09:06,179 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 01:09:06,179 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 01:09:06,179 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 01:09:06,179 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 01:09:06,189 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:09:06" (1/1) ... [2019-11-07 01:09:06,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:09:06" (1/1) ... [2019-11-07 01:09:06,245 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:09:06" (1/1) ... [2019-11-07 01:09:06,246 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:09:06" (1/1) ... [2019-11-07 01:09:06,367 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:09:06" (1/1) ... [2019-11-07 01:09:06,398 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:09:06" (1/1) ... [2019-11-07 01:09:06,422 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:09:06" (1/1) ... [2019-11-07 01:09:06,444 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 01:09:06,445 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 01:09:06,445 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 01:09:06,446 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 01:09:06,446 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:09:06" (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 [2019-11-07 01:09:06,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 01:09:06,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 01:09:06,512 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2019-11-07 01:09:06,512 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_init [2019-11-07 01:09:06,512 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_control [2019-11-07 01:09:06,513 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2019-11-07 01:09:06,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2019-11-07 01:09:06,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2019-11-07 01:09:06,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_read_bt_packet [2019-11-07 01:09:06,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_battery_voltage [2019-11-07 01:09:06,516 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts1 [2019-11-07 01:09:06,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_sonar_sensor [2019-11-07 01:09:06,516 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts2 [2019-11-07 01:09:06,518 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_final [2019-11-07 01:09:06,518 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2019-11-07 01:09:06,518 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts2 [2019-11-07 01:09:06,521 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2019-11-07 01:09:06,522 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts1 [2019-11-07 01:09:06,522 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_Background [2019-11-07 01:09:06,522 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2019-11-07 01:09:06,522 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_Background [2019-11-07 01:09:06,522 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_schedule_jobs [2019-11-07 01:09:06,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_globals [2019-11-07 01:09:06,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2019-11-07 01:09:06,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2019-11-07 01:09:06,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2019-11-07 01:09:06,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_check_assumptions [2019-11-07 01:09:06,524 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_init [2019-11-07 01:09:06,524 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_check_assertions [2019-11-07 01:09:06,524 INFO L138 BoogieDeclarations]: Found implementation of procedure __main [2019-11-07 01:09:06,524 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 01:09:06,524 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2019-11-07 01:09:06,525 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2019-11-07 01:09:06,525 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2019-11-07 01:09:06,525 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2019-11-07 01:09:06,525 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_shared [2019-11-07 01:09:06,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_bt_data_logger [2019-11-07 01:09:06,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_sound_tone [2019-11-07 01:09:06,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_status_monitor [2019-11-07 01:09:06,527 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2019-11-07 01:09:06,527 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2019-11-07 01:09:06,527 INFO L138 BoogieDeclarations]: Found implementation of procedure write_mode_on_lcd [2019-11-07 01:09:06,528 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 01:09:06,528 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_shared [2019-11-07 01:09:06,528 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2019-11-07 01:09:06,528 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2019-11-07 01:09:06,529 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2019-11-07 01:09:06,529 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-11-07 01:09:06,529 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2019-11-07 01:09:06,529 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 01:09:06,529 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-11-07 01:09:06,529 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-11-07 01:09:06,530 INFO L130 BoogieDeclarations]: Found specification of procedure balance_init [2019-11-07 01:09:06,530 INFO L130 BoogieDeclarations]: Found specification of procedure balance_control [2019-11-07 01:09:06,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 01:09:06,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 01:09:06,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 01:09:06,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 01:09:06,531 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-11-07 01:09:06,531 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-11-07 01:09:06,532 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2019-11-07 01:09:06,532 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2019-11-07 01:09:06,532 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2019-11-07 01:09:06,533 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2019-11-07 01:09:06,533 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2019-11-07 01:09:06,533 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2019-11-07 01:09:06,534 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2019-11-07 01:09:06,534 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2019-11-07 01:09:06,534 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_sound_tone [2019-11-07 01:09:06,534 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_status_monitor [2019-11-07 01:09:06,534 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_read_bt_packet [2019-11-07 01:09:06,535 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_battery_voltage [2019-11-07 01:09:06,535 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2019-11-07 01:09:06,536 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_bt_data_logger [2019-11-07 01:09:06,536 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts1 [2019-11-07 01:09:06,536 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_sonar_sensor [2019-11-07 01:09:06,536 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts2 [2019-11-07 01:09:06,537 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_final [2019-11-07 01:09:06,537 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2019-11-07 01:09:06,538 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts2 [2019-11-07 01:09:06,538 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2019-11-07 01:09:06,538 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts1 [2019-11-07 01:09:06,538 INFO L130 BoogieDeclarations]: Found specification of procedure write_mode_on_lcd [2019-11-07 01:09:06,539 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_Background [2019-11-07 01:09:06,539 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2019-11-07 01:09:06,540 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_Background [2019-11-07 01:09:06,541 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_schedule_jobs [2019-11-07 01:09:06,541 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_globals [2019-11-07 01:09:06,541 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_check_assumptions [2019-11-07 01:09:06,542 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_init [2019-11-07 01:09:06,542 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_check_assertions [2019-11-07 01:09:06,542 INFO L130 BoogieDeclarations]: Found specification of procedure __main [2019-11-07 01:09:06,542 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 01:09:06,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 01:09:06,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 01:09:06,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 01:09:11,855 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 01:09:11,855 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-07 01:09:11,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:09:11 BoogieIcfgContainer [2019-11-07 01:09:11,858 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 01:09:11,859 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 01:09:11,859 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 01:09:11,864 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 01:09:11,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:09:05" (1/3) ... [2019-11-07 01:09:11,866 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ce8d4aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:09:11, skipping insertion in model container [2019-11-07 01:09:11,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:09:06" (2/3) ... [2019-11-07 01:09:11,866 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ce8d4aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:09:11, skipping insertion in model container [2019-11-07 01:09:11,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:09:11" (3/3) ... [2019-11-07 01:09:11,871 INFO L109 eAbstractionObserver]: Analyzing ICFG rekcba_nxt.1.M1-2.c [2019-11-07 01:09:11,886 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 01:09:11,898 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 01:09:11,910 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 01:09:11,956 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 01:09:11,956 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 01:09:11,956 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 01:09:11,957 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 01:09:11,957 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 01:09:11,957 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 01:09:11,957 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 01:09:11,957 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 01:09:12,011 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states. [2019-11-07 01:09:12,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2019-11-07 01:09:12,061 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:09:12,062 INFO L410 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] [2019-11-07 01:09:12,066 INFO L410 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:09:12,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:09:12,075 INFO L82 PathProgramCache]: Analyzing trace with hash 1480491864, now seen corresponding path program 1 times [2019-11-07 01:09:12,087 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 01:09:12,088 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055745044] [2019-11-07 01:09:12,088 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:09:18,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat