java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/rekh_nxt.3.M1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 05:55:35,851 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 05:55:35,854 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 05:55:35,871 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 05:55:35,871 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 05:55:35,873 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 05:55:35,874 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 05:55:35,884 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 05:55:35,887 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 05:55:35,890 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 05:55:35,892 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 05:55:35,895 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 05:55:35,895 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 05:55:35,897 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 05:55:35,899 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 05:55:35,900 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 05:55:35,901 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 05:55:35,903 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 05:55:35,904 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 05:55:35,909 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 05:55:35,912 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 05:55:35,914 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 05:55:35,916 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 05:55:35,917 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 05:55:35,919 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 05:55:35,919 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 05:55:35,919 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 05:55:35,921 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 05:55:35,922 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 05:55:35,923 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 05:55:35,923 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 05:55:35,924 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 05:55:35,925 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 05:55:35,926 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 05:55:35,927 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 05:55:35,928 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 05:55:35,928 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 05:55:35,928 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 05:55:35,929 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 05:55:35,929 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 05:55:35,930 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 05:55:35,931 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-10 05:55:35,968 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 05:55:35,968 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 05:55:35,969 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 05:55:35,969 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 05:55:35,972 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 05:55:35,972 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 05:55:35,972 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 05:55:35,973 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 05:55:35,973 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 05:55:35,973 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 05:55:35,974 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 05:55:35,974 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 05:55:35,974 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 05:55:35,975 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 05:55:35,975 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 05:55:35,975 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 05:55:35,976 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 05:55:35,976 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 05:55:35,976 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 05:55:35,976 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 05:55:35,976 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 05:55:35,976 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 05:55:35,977 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 05:55:35,977 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 05:55:35,978 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 05:55:35,978 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 05:55:35,978 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 05:55:35,978 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 05:55:35,978 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 05:55:35,979 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 05:55:36,024 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 05:55:36,039 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 05:55:36,042 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 05:55:36,044 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 05:55:36,044 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 05:55:36,045 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/rekh_nxt.3.M1.c [2019-09-10 05:55:36,102 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6112f1a44/c64a527672ae4341ad2eab8c1a5171e8/FLAGe2035081d [2019-09-10 05:55:36,661 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 05:55:36,662 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/rekh_nxt.3.M1.c [2019-09-10 05:55:36,680 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6112f1a44/c64a527672ae4341ad2eab8c1a5171e8/FLAGe2035081d [2019-09-10 05:55:36,922 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6112f1a44/c64a527672ae4341ad2eab8c1a5171e8 [2019-09-10 05:55:36,934 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 05:55:36,935 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 05:55:36,938 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 05:55:36,939 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 05:55:36,942 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 05:55:36,943 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 05:55:36" (1/1) ... [2019-09-10 05:55:36,946 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cea3d4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 05:55:36, skipping insertion in model container [2019-09-10 05:55:36,946 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 05:55:36" (1/1) ... [2019-09-10 05:55:36,954 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 05:55:37,039 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 05:55:37,839 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 05:55:37,877 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 05:55:38,169 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 05:55:38,234 INFO L192 MainTranslator]: Completed translation [2019-09-10 05:55:38,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 05:55:38 WrapperNode [2019-09-10 05:55:38,235 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 05:55:38,236 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 05:55:38,237 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 05:55:38,237 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 05:55:38,250 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 05:55:38" (1/1) ... [2019-09-10 05:55:38,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 05:55:38" (1/1) ... [2019-09-10 05:55:38,321 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 05:55:38" (1/1) ... [2019-09-10 05:55:38,321 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 05:55:38" (1/1) ... [2019-09-10 05:55:38,531 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 05:55:38" (1/1) ... [2019-09-10 05:55:38,558 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 05:55:38" (1/1) ... [2019-09-10 05:55:38,592 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 05:55:38" (1/1) ... [2019-09-10 05:55:38,630 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 05:55:38,630 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 05:55:38,631 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 05:55:38,631 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 05:55:38,631 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 05:55:38" (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 [2019-09-10 05:55:38,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 05:55:38,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 05:55:38,705 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2019-09-10 05:55:38,705 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_init [2019-09-10 05:55:38,705 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_control [2019-09-10 05:55:38,705 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2019-09-10 05:55:38,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2019-09-10 05:55:38,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2019-09-10 05:55:38,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_read_bt_packet [2019-09-10 05:55:38,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_battery_voltage [2019-09-10 05:55:38,706 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts1 [2019-09-10 05:55:38,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_sonar_sensor [2019-09-10 05:55:38,707 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts2 [2019-09-10 05:55:38,708 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2019-09-10 05:55:38,708 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts2 [2019-09-10 05:55:38,709 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2019-09-10 05:55:38,709 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts1 [2019-09-10 05:55:38,709 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_Background [2019-09-10 05:55:38,710 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2019-09-10 05:55:38,710 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_Background [2019-09-10 05:55:38,710 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_schedule_jobs [2019-09-10 05:55:38,710 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_globals [2019-09-10 05:55:38,710 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2019-09-10 05:55:38,711 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2019-09-10 05:55:38,711 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2019-09-10 05:55:38,711 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_assert_i0 [2019-09-10 05:55:38,712 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_init [2019-09-10 05:55:38,712 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_final [2019-09-10 05:55:38,712 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2019-09-10 05:55:38,712 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 05:55:38,712 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2019-09-10 05:55:38,712 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2019-09-10 05:55:38,712 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_observer_obstacle_flag [2019-09-10 05:55:38,713 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2019-09-10 05:55:38,713 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2019-09-10 05:55:38,713 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_observer_obstacle_flag [2019-09-10 05:55:38,713 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_shared [2019-09-10 05:55:38,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_bt_data_logger [2019-09-10 05:55:38,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_sound_tone [2019-09-10 05:55:38,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_status_monitor [2019-09-10 05:55:38,714 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2019-09-10 05:55:38,714 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2019-09-10 05:55:38,714 INFO L138 BoogieDeclarations]: Found implementation of procedure write_mode_on_lcd [2019-09-10 05:55:38,714 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 05:55:38,714 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_shared [2019-09-10 05:55:38,715 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_assert_i0 [2019-09-10 05:55:38,715 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2019-09-10 05:55:38,715 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2019-09-10 05:55:38,715 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2019-09-10 05:55:38,715 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-09-10 05:55:38,715 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2019-09-10 05:55:38,715 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 05:55:38,716 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-10 05:55:38,716 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cpu_lock [2019-09-10 05:55:38,716 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cpu_unlock [2019-09-10 05:55:38,716 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-09-10 05:55:38,716 INFO L130 BoogieDeclarations]: Found specification of procedure balance_init [2019-09-10 05:55:38,716 INFO L130 BoogieDeclarations]: Found specification of procedure balance_control [2019-09-10 05:55:38,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 05:55:38,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 05:55:38,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 05:55:38,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 05:55:38,717 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-09-10 05:55:38,717 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-09-10 05:55:38,718 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2019-09-10 05:55:38,718 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2019-09-10 05:55:38,718 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2019-09-10 05:55:38,718 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2019-09-10 05:55:38,718 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_observer_obstacle_flag [2019-09-10 05:55:38,719 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_observer_obstacle_flag [2019-09-10 05:55:38,719 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2019-09-10 05:55:38,719 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2019-09-10 05:55:38,719 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2019-09-10 05:55:38,720 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2019-09-10 05:55:38,720 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_sound_tone [2019-09-10 05:55:38,721 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_status_monitor [2019-09-10 05:55:38,721 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_read_bt_packet [2019-09-10 05:55:38,721 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_battery_voltage [2019-09-10 05:55:38,721 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2019-09-10 05:55:38,722 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_bt_data_logger [2019-09-10 05:55:38,722 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts1 [2019-09-10 05:55:38,722 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_sonar_sensor [2019-09-10 05:55:38,722 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts2 [2019-09-10 05:55:38,722 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2019-09-10 05:55:38,723 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts2 [2019-09-10 05:55:38,723 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2019-09-10 05:55:38,724 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts1 [2019-09-10 05:55:38,724 INFO L130 BoogieDeclarations]: Found specification of procedure write_mode_on_lcd [2019-09-10 05:55:38,724 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_Background [2019-09-10 05:55:38,725 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2019-09-10 05:55:38,725 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_Background [2019-09-10 05:55:38,725 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_schedule_jobs [2019-09-10 05:55:38,725 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_globals [2019-09-10 05:55:38,725 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_init [2019-09-10 05:55:38,725 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_final [2019-09-10 05:55:38,725 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2019-09-10 05:55:38,726 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 05:55:38,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 05:55:38,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 05:55:38,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 05:55:46,505 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 05:55:46,505 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-10 05:55:46,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 05:55:46 BoogieIcfgContainer [2019-09-10 05:55:46,507 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 05:55:46,508 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 05:55:46,508 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 05:55:46,511 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 05:55:46,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 05:55:36" (1/3) ... [2019-09-10 05:55:46,512 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1005adcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 05:55:46, skipping insertion in model container [2019-09-10 05:55:46,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 05:55:38" (2/3) ... [2019-09-10 05:55:46,513 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1005adcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 05:55:46, skipping insertion in model container [2019-09-10 05:55:46,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 05:55:46" (3/3) ... [2019-09-10 05:55:46,514 INFO L109 eAbstractionObserver]: Analyzing ICFG rekh_nxt.3.M1.c [2019-09-10 05:55:46,523 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 05:55:46,532 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 05:55:46,549 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 05:55:46,580 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 05:55:46,581 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 05:55:46,581 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 05:55:46,582 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 05:55:46,582 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 05:55:46,582 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 05:55:46,582 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 05:55:46,583 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 05:55:46,620 INFO L276 IsEmpty]: Start isEmpty. Operand 660 states. [2019-09-10 05:55:46,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-09-10 05:55:46,651 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 05:55:46,652 INFO L399 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] [2019-09-10 05:55:46,654 INFO L418 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 05:55:46,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 05:55:46,660 INFO L82 PathProgramCache]: Analyzing trace with hash 1612546541, now seen corresponding path program 1 times [2019-09-10 05:55:46,662 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 05:55:46,719 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 05:55:46,719 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 05:55:46,720 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 05:55:46,720 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 05:55:47,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat