java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/rekh_nxt.2.M1-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:48:21,882 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:48:21,886 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:48:21,899 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:48:21,899 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:48:21,900 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:48:21,902 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:48:21,904 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:48:21,905 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:48:21,906 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:48:21,907 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:48:21,908 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:48:21,908 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:48:21,909 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:48:21,910 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:48:21,911 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:48:21,912 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:48:21,913 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:48:21,915 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:48:21,916 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:48:21,918 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:48:21,920 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:48:21,921 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:48:21,922 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:48:21,927 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 23:48:21,927 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 23:48:21,927 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 23:48:21,928 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 23:48:21,929 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 23:48:21,931 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 23:48:21,931 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:48:21,932 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:48:21,933 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:48:21,936 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:48:21,937 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:48:21,937 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:48:21,938 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:48:21,938 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:48:21,938 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:48:21,939 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:48:21,943 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:48:21,945 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-14 23:48:21,965 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:48:21,965 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:48:21,967 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:48:21,967 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:48:21,967 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:48:21,968 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:48:21,968 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:48:21,968 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:48:21,968 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:48:21,969 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:48:21,969 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:48:21,970 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:48:21,970 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:48:21,970 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:48:21,971 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:48:21,971 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:48:21,971 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:48:21,971 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:48:21,971 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:48:21,972 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:48:21,972 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:48:21,972 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:48:21,973 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:48:21,973 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:48:21,973 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:48:21,973 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:48:21,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:48:21,973 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:48:21,974 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 23:48:22,239 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:48:22,261 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:48:22,264 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:48:22,266 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:48:22,266 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:48:22,267 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/rekh_nxt.2.M1-1.c [2019-10-14 23:48:22,335 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/801c2830c/0f9f0c84d4004eaa8a1252e5c66b9a14/FLAG47d97f74d [2019-10-14 23:48:22,933 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:48:22,933 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/rekh_nxt.2.M1-1.c [2019-10-14 23:48:22,952 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/801c2830c/0f9f0c84d4004eaa8a1252e5c66b9a14/FLAG47d97f74d [2019-10-14 23:48:23,176 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/801c2830c/0f9f0c84d4004eaa8a1252e5c66b9a14 [2019-10-14 23:48:23,185 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:48:23,187 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:48:23,189 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:48:23,189 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:48:23,193 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:48:23,194 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:48:23" (1/1) ... [2019-10-14 23:48:23,197 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7789f9f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:48:23, skipping insertion in model container [2019-10-14 23:48:23,197 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:48:23" (1/1) ... [2019-10-14 23:48:23,203 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:48:23,274 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:48:24,041 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:48:24,069 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:48:24,295 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:48:24,339 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:48:24,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:48:24 WrapperNode [2019-10-14 23:48:24,341 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:48:24,342 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:48:24,342 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:48:24,342 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:48:24,356 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:48:24" (1/1) ... [2019-10-14 23:48:24,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:48:24" (1/1) ... [2019-10-14 23:48:24,434 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:48:24" (1/1) ... [2019-10-14 23:48:24,436 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:48:24" (1/1) ... [2019-10-14 23:48:24,595 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:48:24" (1/1) ... [2019-10-14 23:48:24,669 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:48:24" (1/1) ... [2019-10-14 23:48:24,687 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:48:24" (1/1) ... [2019-10-14 23:48:24,709 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:48:24,709 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:48:24,710 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:48:24,710 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:48:24,711 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:48:24" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:48:24,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:48:24,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:48:24,784 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2019-10-14 23:48:24,784 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_init [2019-10-14 23:48:24,785 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_control [2019-10-14 23:48:24,785 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2019-10-14 23:48:24,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2019-10-14 23:48:24,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2019-10-14 23:48:24,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_read_bt_packet [2019-10-14 23:48:24,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_battery_voltage [2019-10-14 23:48:24,786 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts1 [2019-10-14 23:48:24,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_sonar_sensor [2019-10-14 23:48:24,786 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts2 [2019-10-14 23:48:24,786 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2019-10-14 23:48:24,786 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts2 [2019-10-14 23:48:24,786 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2019-10-14 23:48:24,787 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts1 [2019-10-14 23:48:24,787 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_Background [2019-10-14 23:48:24,787 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2019-10-14 23:48:24,787 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_Background [2019-10-14 23:48:24,787 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_schedule_jobs [2019-10-14 23:48:24,788 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_globals [2019-10-14 23:48:24,788 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2019-10-14 23:48:24,788 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2019-10-14 23:48:24,788 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2019-10-14 23:48:24,788 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_assert_i0 [2019-10-14 23:48:24,788 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_init [2019-10-14 23:48:24,789 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_final [2019-10-14 23:48:24,789 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2019-10-14 23:48:24,789 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:48:24,789 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2019-10-14 23:48:24,789 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2019-10-14 23:48:24,789 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_observer_obstacle_flag [2019-10-14 23:48:24,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2019-10-14 23:48:24,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2019-10-14 23:48:24,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_observer_obstacle_flag [2019-10-14 23:48:24,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_shared [2019-10-14 23:48:24,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_bt_data_logger [2019-10-14 23:48:24,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_sound_tone [2019-10-14 23:48:24,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_status_monitor [2019-10-14 23:48:24,791 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2019-10-14 23:48:24,791 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2019-10-14 23:48:24,791 INFO L138 BoogieDeclarations]: Found implementation of procedure write_mode_on_lcd [2019-10-14 23:48:24,791 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:48:24,791 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_shared [2019-10-14 23:48:24,791 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_assert_i0 [2019-10-14 23:48:24,791 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2019-10-14 23:48:24,792 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2019-10-14 23:48:24,792 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2019-10-14 23:48:24,792 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-14 23:48:24,792 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2019-10-14 23:48:24,792 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 23:48:24,792 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-14 23:48:24,792 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cpu_lock [2019-10-14 23:48:24,793 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cpu_unlock [2019-10-14 23:48:24,793 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-10-14 23:48:24,793 INFO L130 BoogieDeclarations]: Found specification of procedure balance_init [2019-10-14 23:48:24,793 INFO L130 BoogieDeclarations]: Found specification of procedure balance_control [2019-10-14 23:48:24,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 23:48:24,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 23:48:24,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 23:48:24,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 23:48:24,794 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-14 23:48:24,794 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-10-14 23:48:24,794 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2019-10-14 23:48:24,794 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2019-10-14 23:48:24,794 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2019-10-14 23:48:24,794 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2019-10-14 23:48:24,795 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_observer_obstacle_flag [2019-10-14 23:48:24,795 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_observer_obstacle_flag [2019-10-14 23:48:24,795 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2019-10-14 23:48:24,795 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2019-10-14 23:48:24,795 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2019-10-14 23:48:24,795 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2019-10-14 23:48:24,795 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_sound_tone [2019-10-14 23:48:24,796 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_status_monitor [2019-10-14 23:48:24,796 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_read_bt_packet [2019-10-14 23:48:24,796 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_battery_voltage [2019-10-14 23:48:24,796 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2019-10-14 23:48:24,796 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_bt_data_logger [2019-10-14 23:48:24,796 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts1 [2019-10-14 23:48:24,796 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_sonar_sensor [2019-10-14 23:48:24,797 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts2 [2019-10-14 23:48:24,797 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2019-10-14 23:48:24,797 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts2 [2019-10-14 23:48:24,797 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2019-10-14 23:48:24,797 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts1 [2019-10-14 23:48:24,797 INFO L130 BoogieDeclarations]: Found specification of procedure write_mode_on_lcd [2019-10-14 23:48:24,797 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_Background [2019-10-14 23:48:24,798 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2019-10-14 23:48:24,798 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_Background [2019-10-14 23:48:24,798 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_schedule_jobs [2019-10-14 23:48:24,798 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_globals [2019-10-14 23:48:24,798 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_init [2019-10-14 23:48:24,798 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_final [2019-10-14 23:48:24,799 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2019-10-14 23:48:24,799 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:48:24,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:48:24,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-14 23:48:24,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:48:32,758 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:48:32,758 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-14 23:48:32,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:48:32 BoogieIcfgContainer [2019-10-14 23:48:32,760 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:48:32,761 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:48:32,761 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:48:32,765 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:48:32,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:48:23" (1/3) ... [2019-10-14 23:48:32,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e47d58d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:48:32, skipping insertion in model container [2019-10-14 23:48:32,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:48:24" (2/3) ... [2019-10-14 23:48:32,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e47d58d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:48:32, skipping insertion in model container [2019-10-14 23:48:32,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:48:32" (3/3) ... [2019-10-14 23:48:32,768 INFO L109 eAbstractionObserver]: Analyzing ICFG rekh_nxt.2.M1-1.c [2019-10-14 23:48:32,777 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:48:32,788 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:48:32,798 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:48:32,833 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:48:32,833 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:48:32,834 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:48:32,834 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:48:32,835 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:48:32,835 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:48:32,835 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:48:32,835 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:48:32,876 INFO L276 IsEmpty]: Start isEmpty. Operand 660 states. [2019-10-14 23:48:32,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-10-14 23:48:32,892 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:48:32,893 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:48:32,895 INFO L410 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:48:32,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:48:32,901 INFO L82 PathProgramCache]: Analyzing trace with hash 1612546541, now seen corresponding path program 1 times [2019-10-14 23:48:32,909 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:48:32,910 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429060905] [2019-10-14 23:48:32,910 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:48:32,910 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:48:32,910 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:48:33,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat