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.1.M4-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 09:15:38,520 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 09:15:38,523 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 09:15:38,540 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-08 09:15:38,540 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-08 09:15:38,541 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-08 09:15:38,544 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-08 09:15:38,555 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-08 09:15:38,557 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-08 09:15:38,558 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-08 09:15:38,559 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-08 09:15:38,560 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-08 09:15:38,560 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 09:15:38,561 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 09:15:38,562 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 09:15:38,563 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 09:15:38,564 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 09:15:38,564 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 09:15:38,566 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 09:15:38,568 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 09:15:38,569 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 09:15:38,570 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 09:15:38,571 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 09:15:38,572 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 09:15:38,573 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-08 09:15:38,574 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-08 09:15:38,574 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-08 09:15:38,575 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-08 09:15:38,575 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-08 09:15:38,576 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-08 09:15:38,576 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-08 09:15:38,577 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-08 09:15:38,577 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-08 09:15:38,578 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-08 09:15:38,579 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-08 09:15:38,579 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-08 09:15:38,580 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-08 09:15:38,580 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-08 09:15:38,580 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 09:15:38,581 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 09:15:38,582 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 09:15:38,583 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 [2019-09-08 09:15:38,596 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 09:15:38,596 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 09:15:38,597 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 09:15:38,597 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 09:15:38,598 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 09:15:38,598 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 09:15:38,598 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 09:15:38,598 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 09:15:38,598 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 09:15:38,599 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 09:15:38,599 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 09:15:38,599 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 09:15:38,599 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 09:15:38,599 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 09:15:38,600 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 09:15:38,600 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 09:15:38,600 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 09:15:38,600 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 09:15:38,600 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 09:15:38,601 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 09:15:38,601 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 09:15:38,601 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 09:15:38,601 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 09:15:38,601 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 09:15:38,602 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 09:15:38,602 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 09:15:38,602 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 09:15:38,602 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 09:15:38,602 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 09:15:38,629 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 09:15:38,640 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 09:15:38,646 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 09:15:38,649 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 09:15:38,649 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 09:15:38,650 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/rekh_nxt.1.M4-2.c [2019-09-08 09:15:38,722 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1b6d41a0/b7c3c097eaa54bbdb5fbef41adf5770e/FLAG392254659 [2019-09-08 09:15:39,327 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 09:15:39,328 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/rekh_nxt.1.M4-2.c [2019-09-08 09:15:39,345 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1b6d41a0/b7c3c097eaa54bbdb5fbef41adf5770e/FLAG392254659 [2019-09-08 09:15:39,541 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1b6d41a0/b7c3c097eaa54bbdb5fbef41adf5770e [2019-09-08 09:15:39,551 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 09:15:39,552 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 09:15:39,553 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 09:15:39,554 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 09:15:39,557 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 09:15:39,558 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 09:15:39" (1/1) ... [2019-09-08 09:15:39,561 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@328a7f88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:15:39, skipping insertion in model container [2019-09-08 09:15:39,561 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 09:15:39" (1/1) ... [2019-09-08 09:15:39,568 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 09:15:39,632 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 09:15:40,293 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 09:15:40,310 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 09:15:40,571 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 09:15:40,607 INFO L192 MainTranslator]: Completed translation [2019-09-08 09:15:40,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:15:40 WrapperNode [2019-09-08 09:15:40,608 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 09:15:40,609 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 09:15:40,609 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 09:15:40,609 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 09:15:40,623 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:15:40" (1/1) ... [2019-09-08 09:15:40,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:15:40" (1/1) ... [2019-09-08 09:15:40,680 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:15:40" (1/1) ... [2019-09-08 09:15:40,681 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:15:40" (1/1) ... [2019-09-08 09:15:40,809 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:15:40" (1/1) ... [2019-09-08 09:15:40,825 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:15:40" (1/1) ... [2019-09-08 09:15:40,852 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:15:40" (1/1) ... [2019-09-08 09:15:40,882 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 09:15:40,882 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 09:15:40,882 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 09:15:40,883 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 09:15:40,884 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:15:40" (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 [2019-09-08 09:15:40,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 09:15:40,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 09:15:40,960 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2019-09-08 09:15:40,960 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_init [2019-09-08 09:15:40,961 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_control [2019-09-08 09:15:40,961 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2019-09-08 09:15:40,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2019-09-08 09:15:40,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2019-09-08 09:15:40,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_read_bt_packet [2019-09-08 09:15:40,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_battery_voltage [2019-09-08 09:15:40,963 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts1 [2019-09-08 09:15:40,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_sonar_sensor [2019-09-08 09:15:40,964 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts2 [2019-09-08 09:15:40,964 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_final [2019-09-08 09:15:40,965 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2019-09-08 09:15:40,965 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts2 [2019-09-08 09:15:40,967 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2019-09-08 09:15:40,967 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts1 [2019-09-08 09:15:40,967 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_Background [2019-09-08 09:15:40,967 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2019-09-08 09:15:40,968 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_Background [2019-09-08 09:15:40,968 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_schedule_jobs [2019-09-08 09:15:40,968 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_globals [2019-09-08 09:15:40,968 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2019-09-08 09:15:40,968 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2019-09-08 09:15:40,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2019-09-08 09:15:40,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_init [2019-09-08 09:15:40,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2019-09-08 09:15:40,969 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 09:15:40,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2019-09-08 09:15:40,970 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2019-09-08 09:15:40,970 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2019-09-08 09:15:40,970 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2019-09-08 09:15:40,970 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_shared [2019-09-08 09:15:40,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_bt_data_logger [2019-09-08 09:15:40,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_sound_tone [2019-09-08 09:15:40,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_status_monitor [2019-09-08 09:15:40,971 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2019-09-08 09:15:40,971 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2019-09-08 09:15:40,971 INFO L138 BoogieDeclarations]: Found implementation of procedure write_mode_on_lcd [2019-09-08 09:15:40,972 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 09:15:40,972 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_shared [2019-09-08 09:15:40,972 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2019-09-08 09:15:40,972 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2019-09-08 09:15:40,973 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2019-09-08 09:15:40,973 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-09-08 09:15:40,973 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2019-09-08 09:15:40,973 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-08 09:15:40,973 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-08 09:15:40,973 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-09-08 09:15:40,974 INFO L130 BoogieDeclarations]: Found specification of procedure balance_init [2019-09-08 09:15:40,974 INFO L130 BoogieDeclarations]: Found specification of procedure balance_control [2019-09-08 09:15:40,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-08 09:15:40,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-08 09:15:40,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-08 09:15:40,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-08 09:15:40,975 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-09-08 09:15:40,975 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-09-08 09:15:40,976 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2019-09-08 09:15:40,976 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2019-09-08 09:15:40,976 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2019-09-08 09:15:40,976 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2019-09-08 09:15:40,976 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2019-09-08 09:15:40,977 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2019-09-08 09:15:40,977 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2019-09-08 09:15:40,977 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2019-09-08 09:15:40,977 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_sound_tone [2019-09-08 09:15:40,977 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_status_monitor [2019-09-08 09:15:40,978 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_read_bt_packet [2019-09-08 09:15:40,978 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_battery_voltage [2019-09-08 09:15:40,978 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2019-09-08 09:15:40,978 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_bt_data_logger [2019-09-08 09:15:40,979 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts1 [2019-09-08 09:15:40,979 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_sonar_sensor [2019-09-08 09:15:40,979 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts2 [2019-09-08 09:15:40,980 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_final [2019-09-08 09:15:40,980 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2019-09-08 09:15:40,980 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts2 [2019-09-08 09:15:40,980 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2019-09-08 09:15:40,980 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts1 [2019-09-08 09:15:40,981 INFO L130 BoogieDeclarations]: Found specification of procedure write_mode_on_lcd [2019-09-08 09:15:40,981 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_Background [2019-09-08 09:15:40,982 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2019-09-08 09:15:40,982 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_Background [2019-09-08 09:15:40,982 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_schedule_jobs [2019-09-08 09:15:40,982 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_globals [2019-09-08 09:15:40,983 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_init [2019-09-08 09:15:40,984 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2019-09-08 09:15:40,984 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 09:15:40,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 09:15:40,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-08 09:15:40,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 09:15:47,776 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 09:15:47,776 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-08 09:15:47,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 09:15:47 BoogieIcfgContainer [2019-09-08 09:15:47,778 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 09:15:47,779 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 09:15:47,779 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 09:15:47,782 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 09:15:47,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 09:15:39" (1/3) ... [2019-09-08 09:15:47,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a02c06d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 09:15:47, skipping insertion in model container [2019-09-08 09:15:47,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:15:40" (2/3) ... [2019-09-08 09:15:47,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a02c06d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 09:15:47, skipping insertion in model container [2019-09-08 09:15:47,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 09:15:47" (3/3) ... [2019-09-08 09:15:47,785 INFO L109 eAbstractionObserver]: Analyzing ICFG rekh_nxt.1.M4-2.c [2019-09-08 09:15:47,794 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 09:15:47,805 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 09:15:47,821 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 09:15:47,869 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 09:15:47,870 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 09:15:47,870 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 09:15:47,870 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 09:15:47,870 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 09:15:47,871 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 09:15:47,871 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 09:15:47,871 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 09:15:47,871 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 09:15:47,910 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states. [2019-09-08 09:15:48,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2943 [2019-09-08 09:15:48,079 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 09:15:48,082 INFO L399 BasicCegarLoop]: trace histogram [108, 108, 108, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 12, 12, 12, 12, 12, 12, 12, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 09:15:48,084 INFO L418 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 09:15:48,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 09:15:48,089 INFO L82 PathProgramCache]: Analyzing trace with hash 139427707, now seen corresponding path program 1 times [2019-09-08 09:15:48,091 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 09:15:48,092 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 09:15:48,140 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 09:15:48,140 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 09:15:48,140 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 09:15:48,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat