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.M1-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:25:08,047 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:25:08,049 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:25:08,062 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:25:08,062 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:25:08,064 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:25:08,065 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:25:08,067 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:25:08,068 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:25:08,069 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:25:08,070 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:25:08,071 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:25:08,071 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:25:08,072 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:25:08,073 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:25:08,074 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:25:08,075 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:25:08,076 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:25:08,078 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:25:08,079 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:25:08,081 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:25:08,082 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:25:08,083 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:25:08,084 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:25:08,085 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:25:08,086 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:25:08,086 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:25:08,087 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:25:08,087 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:25:08,088 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:25:08,088 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:25:08,089 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:25:08,089 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:25:08,090 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:25:08,091 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:25:08,091 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:25:08,092 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:25:08,092 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:25:08,093 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:25:08,093 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:25:08,094 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:25:08,096 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 01:25:08,110 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:25:08,110 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:25:08,111 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:25:08,112 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:25:08,112 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:25:08,112 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:25:08,112 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:25:08,112 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:25:08,113 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:25:08,113 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:25:08,113 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:25:08,113 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:25:08,113 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:25:08,114 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:25:08,114 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:25:08,114 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:25:08,114 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:25:08,114 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:25:08,115 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:25:08,115 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:25:08,115 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:25:08,115 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:25:08,115 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:25:08,116 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:25:08,116 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:25:08,116 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:25:08,116 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:25:08,116 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:25:08,117 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 01:25:08,456 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:25:08,473 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:25:08,477 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:25:08,479 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:25:08,479 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:25:08,480 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/rekcba_nxt.1.M1-1.c [2019-10-15 01:25:08,544 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b28f520c/58a52fd44b4f4c44b865f920dbf65c4f/FLAGce0a3e386 [2019-10-15 01:25:09,115 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:25:09,116 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/rekcba_nxt.1.M1-1.c [2019-10-15 01:25:09,141 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b28f520c/58a52fd44b4f4c44b865f920dbf65c4f/FLAGce0a3e386 [2019-10-15 01:25:09,404 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b28f520c/58a52fd44b4f4c44b865f920dbf65c4f [2019-10-15 01:25:09,417 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:25:09,418 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:25:09,419 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:25:09,420 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:25:09,423 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:25:09,425 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:25:09" (1/1) ... [2019-10-15 01:25:09,428 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@318fb035 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:25:09, skipping insertion in model container [2019-10-15 01:25:09,428 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:25:09" (1/1) ... [2019-10-15 01:25:09,436 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:25:09,508 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:25:10,295 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:25:10,314 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:25:10,587 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:25:10,636 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:25:10,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:25:10 WrapperNode [2019-10-15 01:25:10,636 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:25:10,637 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:25:10,637 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:25:10,638 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:25:10,649 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:25:10" (1/1) ... [2019-10-15 01:25:10,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:25:10" (1/1) ... [2019-10-15 01:25:10,729 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:25:10" (1/1) ... [2019-10-15 01:25:10,730 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:25:10" (1/1) ... [2019-10-15 01:25:10,884 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:25:10" (1/1) ... [2019-10-15 01:25:10,920 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:25:10" (1/1) ... [2019-10-15 01:25:10,947 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:25:10" (1/1) ... [2019-10-15 01:25:10,976 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:25:10,977 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:25:10,977 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:25:10,977 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:25:10,978 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:25:10" (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 01:25:11,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:25:11,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:25:11,059 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2019-10-15 01:25:11,059 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_init [2019-10-15 01:25:11,059 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_control [2019-10-15 01:25:11,060 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2019-10-15 01:25:11,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2019-10-15 01:25:11,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2019-10-15 01:25:11,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_read_bt_packet [2019-10-15 01:25:11,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_battery_voltage [2019-10-15 01:25:11,062 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts1 [2019-10-15 01:25:11,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_sonar_sensor [2019-10-15 01:25:11,062 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts2 [2019-10-15 01:25:11,063 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_final [2019-10-15 01:25:11,063 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2019-10-15 01:25:11,064 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts2 [2019-10-15 01:25:11,066 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2019-10-15 01:25:11,066 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts1 [2019-10-15 01:25:11,066 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_Background [2019-10-15 01:25:11,066 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2019-10-15 01:25:11,066 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_Background [2019-10-15 01:25:11,067 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_schedule_jobs [2019-10-15 01:25:11,067 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_globals [2019-10-15 01:25:11,067 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2019-10-15 01:25:11,067 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2019-10-15 01:25:11,067 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2019-10-15 01:25:11,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_check_assumptions [2019-10-15 01:25:11,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_init [2019-10-15 01:25:11,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_check_assertions [2019-10-15 01:25:11,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __main [2019-10-15 01:25:11,069 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:25:11,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2019-10-15 01:25:11,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2019-10-15 01:25:11,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2019-10-15 01:25:11,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2019-10-15 01:25:11,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_shared [2019-10-15 01:25:11,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_bt_data_logger [2019-10-15 01:25:11,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_sound_tone [2019-10-15 01:25:11,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_status_monitor [2019-10-15 01:25:11,071 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2019-10-15 01:25:11,071 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2019-10-15 01:25:11,071 INFO L138 BoogieDeclarations]: Found implementation of procedure write_mode_on_lcd [2019-10-15 01:25:11,071 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:25:11,071 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_shared [2019-10-15 01:25:11,072 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2019-10-15 01:25:11,072 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2019-10-15 01:25:11,072 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2019-10-15 01:25:11,072 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-15 01:25:11,072 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2019-10-15 01:25:11,072 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:25:11,073 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-15 01:25:11,073 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-10-15 01:25:11,073 INFO L130 BoogieDeclarations]: Found specification of procedure balance_init [2019-10-15 01:25:11,073 INFO L130 BoogieDeclarations]: Found specification of procedure balance_control [2019-10-15 01:25:11,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:25:11,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:25:11,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:25:11,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:25:11,074 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-15 01:25:11,075 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-10-15 01:25:11,075 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2019-10-15 01:25:11,075 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2019-10-15 01:25:11,076 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2019-10-15 01:25:11,076 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2019-10-15 01:25:11,076 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2019-10-15 01:25:11,076 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2019-10-15 01:25:11,076 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2019-10-15 01:25:11,077 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2019-10-15 01:25:11,077 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_sound_tone [2019-10-15 01:25:11,077 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_status_monitor [2019-10-15 01:25:11,077 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_read_bt_packet [2019-10-15 01:25:11,077 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_battery_voltage [2019-10-15 01:25:11,078 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2019-10-15 01:25:11,078 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_bt_data_logger [2019-10-15 01:25:11,078 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts1 [2019-10-15 01:25:11,079 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_sonar_sensor [2019-10-15 01:25:11,079 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts2 [2019-10-15 01:25:11,079 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_final [2019-10-15 01:25:11,079 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2019-10-15 01:25:11,080 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts2 [2019-10-15 01:25:11,080 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2019-10-15 01:25:11,080 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts1 [2019-10-15 01:25:11,081 INFO L130 BoogieDeclarations]: Found specification of procedure write_mode_on_lcd [2019-10-15 01:25:11,081 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_Background [2019-10-15 01:25:11,081 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2019-10-15 01:25:11,082 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_Background [2019-10-15 01:25:11,082 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_schedule_jobs [2019-10-15 01:25:11,083 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_globals [2019-10-15 01:25:11,083 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_check_assumptions [2019-10-15 01:25:11,083 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_init [2019-10-15 01:25:11,083 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_check_assertions [2019-10-15 01:25:11,083 INFO L130 BoogieDeclarations]: Found specification of procedure __main [2019-10-15 01:25:11,084 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:25:11,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:25:11,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:25:11,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:25:16,423 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:25:16,424 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-15 01:25:16,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:25:16 BoogieIcfgContainer [2019-10-15 01:25:16,426 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:25:16,427 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:25:16,427 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:25:16,432 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:25:16,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:25:09" (1/3) ... [2019-10-15 01:25:16,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55366b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:25:16, skipping insertion in model container [2019-10-15 01:25:16,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:25:10" (2/3) ... [2019-10-15 01:25:16,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55366b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:25:16, skipping insertion in model container [2019-10-15 01:25:16,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:25:16" (3/3) ... [2019-10-15 01:25:16,440 INFO L109 eAbstractionObserver]: Analyzing ICFG rekcba_nxt.1.M1-1.c [2019-10-15 01:25:16,452 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:25:16,466 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:25:16,481 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:25:16,531 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:25:16,531 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:25:16,531 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:25:16,531 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:25:16,532 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:25:16,532 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:25:16,532 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:25:16,532 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:25:16,579 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states. [2019-10-15 01:25:16,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2019-10-15 01:25:16,620 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:25:16,623 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] [2019-10-15 01:25:16,626 INFO L410 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:25:16,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:25:16,633 INFO L82 PathProgramCache]: Analyzing trace with hash 1480491864, now seen corresponding path program 1 times [2019-10-15 01:25:16,644 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:25:16,644 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028463304] [2019-10-15 01:25:16,644 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:25:16,645 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:25:16,645 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:25:24,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat