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 --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/seq-mthreaded/rekcba_nxt.3.M4.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 16:20:16,498 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 16:20:16,500 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 16:20:16,518 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 16:20:16,518 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 16:20:16,520 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 16:20:16,521 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 16:20:16,534 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 16:20:16,535 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 16:20:16,537 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 16:20:16,538 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 16:20:16,539 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 16:20:16,540 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 16:20:16,543 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 16:20:16,546 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 16:20:16,548 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 16:20:16,549 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 16:20:16,551 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 16:20:16,553 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 16:20:16,559 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 16:20:16,562 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 16:20:16,565 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 16:20:16,568 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 16:20:16,568 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 16:20:16,571 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 16:20:16,571 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 16:20:16,571 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 16:20:16,573 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 16:20:16,575 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 16:20:16,576 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 16:20:16,576 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 16:20:16,578 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 16:20:16,578 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 16:20:16,579 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 16:20:16,581 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 16:20:16,581 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 16:20:16,582 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 16:20:16,582 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 16:20:16,582 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 16:20:16,583 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 16:20:16,584 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 16:20:16,585 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 [2019-10-07 16:20:16,603 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 16:20:16,603 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 16:20:16,605 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 16:20:16,605 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 16:20:16,606 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 16:20:16,606 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 16:20:16,606 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 16:20:16,606 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 16:20:16,606 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 16:20:16,607 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 16:20:16,608 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 16:20:16,608 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 16:20:16,608 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 16:20:16,608 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 16:20:16,609 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 16:20:16,609 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 16:20:16,609 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 16:20:16,609 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 16:20:16,609 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 16:20:16,610 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 16:20:16,610 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 16:20:16,610 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 16:20:16,610 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 16:20:16,610 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 16:20:16,611 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 16:20:16,611 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 16:20:16,611 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 16:20:16,611 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 16:20:16,611 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-07 16:20:16,882 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 16:20:16,895 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 16:20:16,898 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 16:20:16,900 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 16:20:16,900 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 16:20:16,901 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/rekcba_nxt.3.M4.c [2019-10-07 16:20:16,959 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06ee30cc7/3faf86b9fb74441eb98bc37d495bd204/FLAGc379abe0a [2019-10-07 16:20:17,912 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 16:20:17,914 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/rekcba_nxt.3.M4.c [2019-10-07 16:20:17,997 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06ee30cc7/3faf86b9fb74441eb98bc37d495bd204/FLAGc379abe0a [2019-10-07 16:20:18,294 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06ee30cc7/3faf86b9fb74441eb98bc37d495bd204 [2019-10-07 16:20:18,304 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 16:20:18,306 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 16:20:18,307 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 16:20:18,308 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 16:20:18,311 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 16:20:18,312 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 04:20:18" (1/1) ... [2019-10-07 16:20:18,315 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e2e0a33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 04:20:18, skipping insertion in model container [2019-10-07 16:20:18,315 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 04:20:18" (1/1) ... [2019-10-07 16:20:18,323 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 16:20:18,499 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 16:20:20,208 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 16:20:20,251 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 16:20:21,194 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 16:20:21,257 INFO L192 MainTranslator]: Completed translation [2019-10-07 16:20:21,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 04:20:21 WrapperNode [2019-10-07 16:20:21,259 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 16:20:21,259 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 16:20:21,260 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 16:20:21,260 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 16:20:21,273 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 04:20:21" (1/1) ... [2019-10-07 16:20:21,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 04:20:21" (1/1) ... [2019-10-07 16:20:21,558 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 04:20:21" (1/1) ... [2019-10-07 16:20:21,558 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 04:20:21" (1/1) ... [2019-10-07 16:20:23,045 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 04:20:21" (1/1) ... [2019-10-07 16:20:23,137 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 04:20:21" (1/1) ... [2019-10-07 16:20:23,237 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 04:20:21" (1/1) ... [2019-10-07 16:20:23,361 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 16:20:23,362 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 16:20:23,362 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 16:20:23,362 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 16:20:23,363 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 04:20:21" (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 [2019-10-07 16:20:23,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 16:20:23,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 16:20:23,429 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2019-10-07 16:20:23,429 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_init [2019-10-07 16:20:23,429 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_control [2019-10-07 16:20:23,429 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2019-10-07 16:20:23,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2019-10-07 16:20:23,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2019-10-07 16:20:23,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_read_bt_packet [2019-10-07 16:20:23,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_battery_voltage [2019-10-07 16:20:23,430 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts1 [2019-10-07 16:20:23,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_sonar_sensor [2019-10-07 16:20:23,430 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts2 [2019-10-07 16:20:23,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2019-10-07 16:20:23,431 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts2 [2019-10-07 16:20:23,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2019-10-07 16:20:23,431 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts1 [2019-10-07 16:20:23,431 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_Background [2019-10-07 16:20:23,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2019-10-07 16:20:23,432 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_Background [2019-10-07 16:20:23,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_schedule_jobs [2019-10-07 16:20:23,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_globals [2019-10-07 16:20:23,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2019-10-07 16:20:23,433 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2019-10-07 16:20:23,433 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2019-10-07 16:20:23,433 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_assert_i0 [2019-10-07 16:20:23,433 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_check_assumptions [2019-10-07 16:20:23,433 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_init [2019-10-07 16:20:23,433 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_final [2019-10-07 16:20:23,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_check_assertions [2019-10-07 16:20:23,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __main [2019-10-07 16:20:23,434 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 16:20:23,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2019-10-07 16:20:23,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2019-10-07 16:20:23,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_observer_obstacle_flag [2019-10-07 16:20:23,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2019-10-07 16:20:23,435 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2019-10-07 16:20:23,435 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_observer_obstacle_flag [2019-10-07 16:20:23,435 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_shared [2019-10-07 16:20:23,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_bt_data_logger [2019-10-07 16:20:23,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_sound_tone [2019-10-07 16:20:23,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_status_monitor [2019-10-07 16:20:23,435 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2019-10-07 16:20:23,436 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2019-10-07 16:20:23,436 INFO L138 BoogieDeclarations]: Found implementation of procedure write_mode_on_lcd [2019-10-07 16:20:23,436 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 16:20:23,436 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_shared [2019-10-07 16:20:23,436 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_assert_i0 [2019-10-07 16:20:23,436 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2019-10-07 16:20:23,437 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2019-10-07 16:20:23,437 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2019-10-07 16:20:23,437 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-07 16:20:23,437 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2019-10-07 16:20:23,437 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 16:20:23,437 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-07 16:20:23,437 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cpu_lock [2019-10-07 16:20:23,438 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cpu_unlock [2019-10-07 16:20:23,438 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-10-07 16:20:23,438 INFO L130 BoogieDeclarations]: Found specification of procedure balance_init [2019-10-07 16:20:23,438 INFO L130 BoogieDeclarations]: Found specification of procedure balance_control [2019-10-07 16:20:23,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 16:20:23,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 16:20:23,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 16:20:23,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 16:20:23,439 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-07 16:20:23,439 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-10-07 16:20:23,439 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2019-10-07 16:20:23,439 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2019-10-07 16:20:23,440 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2019-10-07 16:20:23,440 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2019-10-07 16:20:23,440 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_observer_obstacle_flag [2019-10-07 16:20:23,440 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_observer_obstacle_flag [2019-10-07 16:20:23,440 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2019-10-07 16:20:23,440 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2019-10-07 16:20:23,441 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2019-10-07 16:20:23,441 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2019-10-07 16:20:23,441 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_sound_tone [2019-10-07 16:20:23,441 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_status_monitor [2019-10-07 16:20:23,442 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_read_bt_packet [2019-10-07 16:20:23,442 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_battery_voltage [2019-10-07 16:20:23,443 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2019-10-07 16:20:23,444 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_bt_data_logger [2019-10-07 16:20:23,444 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts1 [2019-10-07 16:20:23,444 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_sonar_sensor [2019-10-07 16:20:23,445 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts2 [2019-10-07 16:20:23,445 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2019-10-07 16:20:23,445 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts2 [2019-10-07 16:20:23,446 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2019-10-07 16:20:23,446 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts1 [2019-10-07 16:20:23,446 INFO L130 BoogieDeclarations]: Found specification of procedure write_mode_on_lcd [2019-10-07 16:20:23,446 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_Background [2019-10-07 16:20:23,447 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2019-10-07 16:20:23,447 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_Background [2019-10-07 16:20:23,447 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_schedule_jobs [2019-10-07 16:20:23,447 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_globals [2019-10-07 16:20:23,447 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_check_assumptions [2019-10-07 16:20:23,447 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_init [2019-10-07 16:20:23,447 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_final [2019-10-07 16:20:23,448 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_check_assertions [2019-10-07 16:20:23,448 INFO L130 BoogieDeclarations]: Found specification of procedure __main [2019-10-07 16:20:23,448 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 16:20:23,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 16:20:23,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 16:20:23,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 16:24:31,824 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 16:24:31,824 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-07 16:24:31,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 04:24:31 BoogieIcfgContainer [2019-10-07 16:24:31,826 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 16:24:31,827 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 16:24:31,827 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 16:24:31,830 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 16:24:31,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 04:20:18" (1/3) ... [2019-10-07 16:24:31,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ca2fea8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 04:24:31, skipping insertion in model container [2019-10-07 16:24:31,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 04:20:21" (2/3) ... [2019-10-07 16:24:31,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ca2fea8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 04:24:31, skipping insertion in model container [2019-10-07 16:24:31,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 04:24:31" (3/3) ... [2019-10-07 16:24:31,833 INFO L109 eAbstractionObserver]: Analyzing ICFG rekcba_nxt.3.M4.c [2019-10-07 16:24:31,845 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 16:24:31,856 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 16:24:31,866 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 16:24:31,900 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 16:24:31,900 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 16:24:31,901 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 16:24:31,901 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 16:24:31,902 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 16:24:31,902 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 16:24:31,902 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 16:24:31,903 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 16:24:31,938 INFO L276 IsEmpty]: Start isEmpty. Operand 885 states. [2019-10-07 16:24:31,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2019-10-07 16:24:31,969 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 16:24:31,970 INFO L385 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] [2019-10-07 16:24:31,972 INFO L410 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 16:24:31,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 16:24:31,978 INFO L82 PathProgramCache]: Analyzing trace with hash 180299113, now seen corresponding path program 1 times [2019-10-07 16:24:31,986 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 16:24:31,986 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 16:24:31,987 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 16:24:31,987 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 16:24:31,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 16:31:30,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat