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.M1-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 05:24:21,058 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 05:24:21,060 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 05:24:21,072 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 05:24:21,072 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 05:24:21,073 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 05:24:21,075 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 05:24:21,078 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 05:24:21,080 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 05:24:21,082 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 05:24:21,083 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 05:24:21,085 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 05:24:21,086 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 05:24:21,087 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 05:24:21,088 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 05:24:21,089 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 05:24:21,090 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 05:24:21,091 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 05:24:21,092 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 05:24:21,095 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 05:24:21,096 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 05:24:21,097 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 05:24:21,099 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 05:24:21,099 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 05:24:21,102 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 05:24:21,102 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 05:24:21,103 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 05:24:21,104 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 05:24:21,104 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 05:24:21,105 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 05:24:21,106 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 05:24:21,106 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 05:24:21,107 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 05:24:21,108 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 05:24:21,109 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 05:24:21,109 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 05:24:21,111 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 05:24:21,111 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 05:24:21,111 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 05:24:21,112 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 05:24:21,113 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 05:24:21,115 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 05:24:21,147 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 05:24:21,147 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 05:24:21,148 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 05:24:21,148 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 05:24:21,148 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 05:24:21,149 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 05:24:21,149 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 05:24:21,149 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 05:24:21,149 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 05:24:21,149 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 05:24:21,151 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 05:24:21,151 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 05:24:21,151 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 05:24:21,151 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 05:24:21,152 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 05:24:21,152 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 05:24:21,152 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 05:24:21,152 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 05:24:21,152 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 05:24:21,153 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 05:24:21,153 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 05:24:21,153 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 05:24:21,153 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 05:24:21,154 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 05:24:21,154 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 05:24:21,154 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 05:24:21,154 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 05:24:21,155 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 05:24:21,155 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 05:24:21,156 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 05:24:21,195 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 05:24:21,210 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 05:24:21,214 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 05:24:21,215 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 05:24:21,215 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 05:24:21,216 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/rekcba_nxt.2.M1-2.c [2019-09-10 05:24:21,274 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc5d285c2/ab060602395c494ab8e017cc8628af80/FLAG602756e8e [2019-09-10 05:24:21,913 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 05:24:21,914 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/rekcba_nxt.2.M1-2.c [2019-09-10 05:24:21,931 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc5d285c2/ab060602395c494ab8e017cc8628af80/FLAG602756e8e [2019-09-10 05:24:22,116 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc5d285c2/ab060602395c494ab8e017cc8628af80 [2019-09-10 05:24:22,124 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 05:24:22,125 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 05:24:22,127 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 05:24:22,127 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 05:24:22,130 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 05:24:22,131 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 05:24:22" (1/1) ... [2019-09-10 05:24:22,134 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d179f7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 05:24:22, skipping insertion in model container [2019-09-10 05:24:22,134 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 05:24:22" (1/1) ... [2019-09-10 05:24:22,142 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 05:24:22,209 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 05:24:22,855 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 05:24:22,884 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 05:24:23,116 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 05:24:23,179 INFO L192 MainTranslator]: Completed translation [2019-09-10 05:24:23,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 05:24:23 WrapperNode [2019-09-10 05:24:23,179 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 05:24:23,180 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 05:24:23,180 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 05:24:23,181 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 05:24:23,195 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 05:24:23" (1/1) ... [2019-09-10 05:24:23,197 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 05:24:23" (1/1) ... [2019-09-10 05:24:23,255 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 05:24:23" (1/1) ... [2019-09-10 05:24:23,255 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 05:24:23" (1/1) ... [2019-09-10 05:24:23,379 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 05:24:23" (1/1) ... [2019-09-10 05:24:23,412 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 05:24:23" (1/1) ... [2019-09-10 05:24:23,438 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 05:24:23" (1/1) ... [2019-09-10 05:24:23,461 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 05:24:23,461 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 05:24:23,462 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 05:24:23,462 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 05:24:23,463 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 05:24:23" (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 05:24:23,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 05:24:23,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 05:24:23,533 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2019-09-10 05:24:23,533 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_init [2019-09-10 05:24:23,534 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_control [2019-09-10 05:24:23,534 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2019-09-10 05:24:23,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2019-09-10 05:24:23,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2019-09-10 05:24:23,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_read_bt_packet [2019-09-10 05:24:23,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_battery_voltage [2019-09-10 05:24:23,535 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts1 [2019-09-10 05:24:23,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_sonar_sensor [2019-09-10 05:24:23,536 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts2 [2019-09-10 05:24:23,537 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2019-09-10 05:24:23,537 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts2 [2019-09-10 05:24:23,538 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2019-09-10 05:24:23,538 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts1 [2019-09-10 05:24:23,538 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_Background [2019-09-10 05:24:23,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2019-09-10 05:24:23,539 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_Background [2019-09-10 05:24:23,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_schedule_jobs [2019-09-10 05:24:23,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_globals [2019-09-10 05:24:23,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2019-09-10 05:24:23,540 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2019-09-10 05:24:23,540 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2019-09-10 05:24:23,541 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_assert_i0 [2019-09-10 05:24:23,541 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_check_assumptions [2019-09-10 05:24:23,541 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_init [2019-09-10 05:24:23,541 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_final [2019-09-10 05:24:23,541 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_check_assertions [2019-09-10 05:24:23,541 INFO L138 BoogieDeclarations]: Found implementation of procedure __main [2019-09-10 05:24:23,542 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 05:24:23,542 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2019-09-10 05:24:23,542 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2019-09-10 05:24:23,542 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2019-09-10 05:24:23,542 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2019-09-10 05:24:23,542 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_shared [2019-09-10 05:24:23,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_bt_data_logger [2019-09-10 05:24:23,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_sound_tone [2019-09-10 05:24:23,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_status_monitor [2019-09-10 05:24:23,543 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2019-09-10 05:24:23,543 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2019-09-10 05:24:23,544 INFO L138 BoogieDeclarations]: Found implementation of procedure write_mode_on_lcd [2019-09-10 05:24:23,544 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 05:24:23,544 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_shared [2019-09-10 05:24:23,544 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_assert_i0 [2019-09-10 05:24:23,545 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2019-09-10 05:24:23,545 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2019-09-10 05:24:23,545 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2019-09-10 05:24:23,545 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-09-10 05:24:23,545 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2019-09-10 05:24:23,546 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 05:24:23,546 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-10 05:24:23,546 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-09-10 05:24:23,546 INFO L130 BoogieDeclarations]: Found specification of procedure balance_init [2019-09-10 05:24:23,546 INFO L130 BoogieDeclarations]: Found specification of procedure balance_control [2019-09-10 05:24:23,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 05:24:23,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 05:24:23,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 05:24:23,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 05:24:23,547 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-09-10 05:24:23,547 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-09-10 05:24:23,547 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2019-09-10 05:24:23,548 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2019-09-10 05:24:23,548 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2019-09-10 05:24:23,548 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2019-09-10 05:24:23,548 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2019-09-10 05:24:23,549 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2019-09-10 05:24:23,549 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2019-09-10 05:24:23,549 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2019-09-10 05:24:23,549 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_sound_tone [2019-09-10 05:24:23,549 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_status_monitor [2019-09-10 05:24:23,549 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_read_bt_packet [2019-09-10 05:24:23,550 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_battery_voltage [2019-09-10 05:24:23,550 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2019-09-10 05:24:23,551 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_bt_data_logger [2019-09-10 05:24:23,551 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts1 [2019-09-10 05:24:23,551 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_sonar_sensor [2019-09-10 05:24:23,551 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts2 [2019-09-10 05:24:23,552 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2019-09-10 05:24:23,552 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts2 [2019-09-10 05:24:23,552 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2019-09-10 05:24:23,552 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts1 [2019-09-10 05:24:23,552 INFO L130 BoogieDeclarations]: Found specification of procedure write_mode_on_lcd [2019-09-10 05:24:23,553 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_Background [2019-09-10 05:24:23,553 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2019-09-10 05:24:23,554 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_Background [2019-09-10 05:24:23,554 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_schedule_jobs [2019-09-10 05:24:23,554 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_globals [2019-09-10 05:24:23,555 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_check_assumptions [2019-09-10 05:24:23,555 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_init [2019-09-10 05:24:23,555 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_final [2019-09-10 05:24:23,555 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_check_assertions [2019-09-10 05:24:23,555 INFO L130 BoogieDeclarations]: Found specification of procedure __main [2019-09-10 05:24:23,555 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 05:24:23,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 05:24:23,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 05:24:23,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 05:24:29,049 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 05:24:29,050 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-10 05:24:29,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 05:24:29 BoogieIcfgContainer [2019-09-10 05:24:29,052 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 05:24:29,054 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 05:24:29,054 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 05:24:29,057 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 05:24:29,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 05:24:22" (1/3) ... [2019-09-10 05:24:29,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f1d5ac8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 05:24:29, skipping insertion in model container [2019-09-10 05:24:29,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 05:24:23" (2/3) ... [2019-09-10 05:24:29,060 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f1d5ac8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 05:24:29, skipping insertion in model container [2019-09-10 05:24:29,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 05:24:29" (3/3) ... [2019-09-10 05:24:29,063 INFO L109 eAbstractionObserver]: Analyzing ICFG rekcba_nxt.2.M1-2.c [2019-09-10 05:24:29,073 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 05:24:29,088 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 05:24:29,105 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 05:24:29,127 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 05:24:29,127 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 05:24:29,127 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 05:24:29,127 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 05:24:29,128 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 05:24:29,128 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 05:24:29,128 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 05:24:29,128 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 05:24:29,163 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states. [2019-09-10 05:24:29,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2019-09-10 05:24:29,205 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 05:24:29,207 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] [2019-09-10 05:24:29,210 INFO L418 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 05:24:29,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 05:24:29,216 INFO L82 PathProgramCache]: Analyzing trace with hash -720211581, now seen corresponding path program 1 times [2019-09-10 05:24:29,218 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 05:24:29,269 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 05:24:29,269 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 05:24:29,269 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 05:24:29,270 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 05:24:32,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat