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/rekcba_nxt.2.M4-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 05:24:38,076 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 05:24:38,078 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 05:24:38,089 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 05:24:38,090 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 05:24:38,091 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 05:24:38,092 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 05:24:38,094 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 05:24:38,096 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 05:24:38,097 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 05:24:38,098 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 05:24:38,099 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 05:24:38,099 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 05:24:38,100 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 05:24:38,101 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 05:24:38,102 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 05:24:38,103 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 05:24:38,104 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 05:24:38,106 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 05:24:38,113 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 05:24:38,115 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 05:24:38,116 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 05:24:38,117 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 05:24:38,117 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 05:24:38,123 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 05:24:38,123 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 05:24:38,123 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 05:24:38,124 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 05:24:38,125 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 05:24:38,127 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 05:24:38,127 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 05:24:38,128 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 05:24:38,129 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 05:24:38,130 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 05:24:38,134 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 05:24:38,135 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 05:24:38,136 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 05:24:38,136 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 05:24:38,136 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 05:24:38,139 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 05:24:38,140 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 05:24:38,141 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 05:24:38,166 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 05:24:38,167 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 05:24:38,167 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 05:24:38,168 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 05:24:38,168 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 05:24:38,169 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 05:24:38,169 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 05:24:38,169 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 05:24:38,169 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 05:24:38,169 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 05:24:38,172 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 05:24:38,172 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 05:24:38,172 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 05:24:38,173 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 05:24:38,173 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 05:24:38,173 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 05:24:38,173 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 05:24:38,173 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 05:24:38,174 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 05:24:38,174 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 05:24:38,174 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 05:24:38,174 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 05:24:38,174 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 05:24:38,175 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 05:24:38,175 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 05:24:38,175 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 05:24:38,175 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 05:24:38,176 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 05:24:38,176 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 05:24:38,176 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 05:24:38,232 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 05:24:38,250 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 05:24:38,254 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 05:24:38,256 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 05:24:38,256 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 05:24:38,257 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/rekcba_nxt.2.M4-1.c [2019-09-10 05:24:38,331 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aea589836/95f0dd054d4e4b68aad8f368d306c491/FLAG63a9e6739 [2019-09-10 05:24:39,186 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 05:24:39,186 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/rekcba_nxt.2.M4-1.c [2019-09-10 05:24:39,223 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aea589836/95f0dd054d4e4b68aad8f368d306c491/FLAG63a9e6739 [2019-09-10 05:24:39,684 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aea589836/95f0dd054d4e4b68aad8f368d306c491 [2019-09-10 05:24:39,693 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 05:24:39,694 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 05:24:39,695 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 05:24:39,696 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 05:24:39,699 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 05:24:39,700 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 05:24:39" (1/1) ... [2019-09-10 05:24:39,703 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ed68154 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 05:24:39, skipping insertion in model container [2019-09-10 05:24:39,704 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 05:24:39" (1/1) ... [2019-09-10 05:24:39,711 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 05:24:39,881 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 05:24:41,571 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 05:24:41,637 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 05:24:42,575 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 05:24:42,639 INFO L192 MainTranslator]: Completed translation [2019-09-10 05:24:42,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 05:24:42 WrapperNode [2019-09-10 05:24:42,640 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 05:24:42,641 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 05:24:42,641 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 05:24:42,641 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 05:24:42,660 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 05:24:42" (1/1) ... [2019-09-10 05:24:42,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 05:24:42" (1/1) ... [2019-09-10 05:24:42,966 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 05:24:42" (1/1) ... [2019-09-10 05:24:42,966 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 05:24:42" (1/1) ... [2019-09-10 05:24:44,459 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 05:24:42" (1/1) ... [2019-09-10 05:24:44,567 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 05:24:42" (1/1) ... [2019-09-10 05:24:44,665 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 05:24:42" (1/1) ... [2019-09-10 05:24:44,790 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 05:24:44,791 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 05:24:44,791 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 05:24:44,791 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 05:24:44,792 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 05:24:42" (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 05:24:44,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 05:24:44,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 05:24:44,880 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2019-09-10 05:24:44,881 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_init [2019-09-10 05:24:44,881 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_control [2019-09-10 05:24:44,881 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2019-09-10 05:24:44,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2019-09-10 05:24:44,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2019-09-10 05:24:44,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_read_bt_packet [2019-09-10 05:24:44,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_battery_voltage [2019-09-10 05:24:44,882 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts1 [2019-09-10 05:24:44,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_sonar_sensor [2019-09-10 05:24:44,883 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts2 [2019-09-10 05:24:44,883 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2019-09-10 05:24:44,883 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts2 [2019-09-10 05:24:44,883 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2019-09-10 05:24:44,884 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts1 [2019-09-10 05:24:44,884 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_Background [2019-09-10 05:24:44,884 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2019-09-10 05:24:44,885 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_Background [2019-09-10 05:24:44,885 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_schedule_jobs [2019-09-10 05:24:44,885 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_globals [2019-09-10 05:24:44,885 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2019-09-10 05:24:44,886 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2019-09-10 05:24:44,886 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2019-09-10 05:24:44,886 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_assert_i0 [2019-09-10 05:24:44,886 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_check_assumptions [2019-09-10 05:24:44,886 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_init [2019-09-10 05:24:44,886 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_final [2019-09-10 05:24:44,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_check_assertions [2019-09-10 05:24:44,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __main [2019-09-10 05:24:44,887 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 05:24:44,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2019-09-10 05:24:44,888 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2019-09-10 05:24:44,888 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2019-09-10 05:24:44,888 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2019-09-10 05:24:44,888 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_shared [2019-09-10 05:24:44,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_bt_data_logger [2019-09-10 05:24:44,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_sound_tone [2019-09-10 05:24:44,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_status_monitor [2019-09-10 05:24:44,889 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2019-09-10 05:24:44,889 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2019-09-10 05:24:44,890 INFO L138 BoogieDeclarations]: Found implementation of procedure write_mode_on_lcd [2019-09-10 05:24:44,890 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 05:24:44,890 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_shared [2019-09-10 05:24:44,890 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_assert_i0 [2019-09-10 05:24:44,891 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2019-09-10 05:24:44,891 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2019-09-10 05:24:44,891 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2019-09-10 05:24:44,891 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-09-10 05:24:44,891 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2019-09-10 05:24:44,892 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 05:24:44,892 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-10 05:24:44,892 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-09-10 05:24:44,892 INFO L130 BoogieDeclarations]: Found specification of procedure balance_init [2019-09-10 05:24:44,892 INFO L130 BoogieDeclarations]: Found specification of procedure balance_control [2019-09-10 05:24:44,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 05:24:44,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 05:24:44,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 05:24:44,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 05:24:44,893 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-09-10 05:24:44,893 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-09-10 05:24:44,893 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2019-09-10 05:24:44,894 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2019-09-10 05:24:44,894 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2019-09-10 05:24:44,894 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2019-09-10 05:24:44,894 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2019-09-10 05:24:44,894 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2019-09-10 05:24:44,894 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2019-09-10 05:24:44,895 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2019-09-10 05:24:44,895 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_sound_tone [2019-09-10 05:24:44,895 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_status_monitor [2019-09-10 05:24:44,895 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_read_bt_packet [2019-09-10 05:24:44,895 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_battery_voltage [2019-09-10 05:24:44,896 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2019-09-10 05:24:44,896 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_bt_data_logger [2019-09-10 05:24:44,896 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts1 [2019-09-10 05:24:44,896 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_sonar_sensor [2019-09-10 05:24:44,896 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts2 [2019-09-10 05:24:44,896 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2019-09-10 05:24:44,897 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts2 [2019-09-10 05:24:44,897 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2019-09-10 05:24:44,897 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts1 [2019-09-10 05:24:44,897 INFO L130 BoogieDeclarations]: Found specification of procedure write_mode_on_lcd [2019-09-10 05:24:44,897 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_Background [2019-09-10 05:24:44,897 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2019-09-10 05:24:44,898 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_Background [2019-09-10 05:24:44,898 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_schedule_jobs [2019-09-10 05:24:44,898 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_globals [2019-09-10 05:24:44,898 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_check_assumptions [2019-09-10 05:24:44,898 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_init [2019-09-10 05:24:44,898 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_final [2019-09-10 05:24:44,898 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_check_assertions [2019-09-10 05:24:44,899 INFO L130 BoogieDeclarations]: Found specification of procedure __main [2019-09-10 05:24:44,899 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 05:24:44,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 05:24:44,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 05:24:44,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 05:25:09,389 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 05:25:09,389 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-10 05:25:09,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 05:25:09 BoogieIcfgContainer [2019-09-10 05:25:09,393 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 05:25:09,394 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 05:25:09,394 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 05:25:09,397 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 05:25:09,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 05:24:39" (1/3) ... [2019-09-10 05:25:09,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d34da91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 05:25:09, skipping insertion in model container [2019-09-10 05:25:09,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 05:24:42" (2/3) ... [2019-09-10 05:25:09,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d34da91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 05:25:09, skipping insertion in model container [2019-09-10 05:25:09,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 05:25:09" (3/3) ... [2019-09-10 05:25:09,402 INFO L109 eAbstractionObserver]: Analyzing ICFG rekcba_nxt.2.M4-1.c [2019-09-10 05:25:09,412 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 05:25:09,428 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 05:25:09,445 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 05:25:09,475 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 05:25:09,476 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 05:25:09,476 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 05:25:09,476 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 05:25:09,477 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 05:25:09,477 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 05:25:09,478 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 05:25:09,478 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 05:25:09,559 INFO L276 IsEmpty]: Start isEmpty. Operand 4473 states. [2019-09-10 05:25:09,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2618 [2019-09-10 05:25:09,818 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 05:25:09,822 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 05:25:09,825 INFO L418 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 05:25:09,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 05:25:09,832 INFO L82 PathProgramCache]: Analyzing trace with hash -1583819715, now seen corresponding path program 1 times [2019-09-10 05:25:09,834 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 05:25:09,886 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 05:25:09,886 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 05:25:09,886 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 05:25:09,886 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 05:31:13,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat