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.1.M4-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 16:17:09,249 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 16:17:09,252 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 16:17:09,267 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 16:17:09,267 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 16:17:09,268 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 16:17:09,270 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 16:17:09,274 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 16:17:09,277 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 16:17:09,280 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 16:17:09,281 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 16:17:09,289 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 16:17:09,290 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 16:17:09,291 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 16:17:09,293 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 16:17:09,294 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 16:17:09,296 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 16:17:09,296 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 16:17:09,299 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 16:17:09,302 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 16:17:09,304 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 16:17:09,305 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 16:17:09,307 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 16:17:09,308 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 16:17:09,312 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 16:17:09,312 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 16:17:09,312 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 16:17:09,314 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 16:17:09,315 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 16:17:09,317 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 16:17:09,317 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 16:17:09,318 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 16:17:09,319 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 16:17:09,321 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 16:17:09,324 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 16:17:09,324 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 16:17:09,325 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 16:17:09,325 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 16:17:09,326 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 16:17:09,328 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 16:17:09,330 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 16:17:09,331 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 16:17:09,364 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 16:17:09,364 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 16:17:09,368 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 16:17:09,368 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 16:17:09,368 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 16:17:09,368 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 16:17:09,369 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 16:17:09,369 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 16:17:09,369 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 16:17:09,369 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 16:17:09,370 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 16:17:09,370 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 16:17:09,370 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 16:17:09,372 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 16:17:09,372 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 16:17:09,373 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 16:17:09,373 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 16:17:09,373 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 16:17:09,373 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 16:17:09,373 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 16:17:09,374 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 16:17:09,374 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 16:17:09,374 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 16:17:09,374 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 16:17:09,375 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 16:17:09,375 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 16:17:09,376 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 16:17:09,376 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 16:17:09,376 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 16:17:09,666 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 16:17:09,680 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 16:17:09,684 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 16:17:09,685 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 16:17:09,685 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 16:17:09,686 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/rekcba_nxt.1.M4-2.c [2019-10-07 16:17:09,757 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7d69c9bd/317910197c874f3bb92bdaed1a451ecd/FLAG5f9bdc6c2 [2019-10-07 16:17:10,543 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 16:17:10,544 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/rekcba_nxt.1.M4-2.c [2019-10-07 16:17:10,585 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7d69c9bd/317910197c874f3bb92bdaed1a451ecd/FLAG5f9bdc6c2 [2019-10-07 16:17:10,606 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7d69c9bd/317910197c874f3bb92bdaed1a451ecd [2019-10-07 16:17:10,617 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 16:17:10,620 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 16:17:10,624 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 16:17:10,624 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 16:17:10,628 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 16:17:10,629 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 04:17:10" (1/1) ... [2019-10-07 16:17:10,632 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54268d74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 04:17:10, skipping insertion in model container [2019-10-07 16:17:10,632 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 04:17:10" (1/1) ... [2019-10-07 16:17:10,640 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 16:17:10,839 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 16:17:12,694 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 16:17:12,722 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 16:17:13,835 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 16:17:13,875 INFO L192 MainTranslator]: Completed translation [2019-10-07 16:17:13,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 04:17:13 WrapperNode [2019-10-07 16:17:13,876 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 16:17:13,877 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 16:17:13,877 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 16:17:13,877 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 16:17:13,891 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 04:17:13" (1/1) ... [2019-10-07 16:17:13,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 04:17:13" (1/1) ... [2019-10-07 16:17:14,150 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 04:17:13" (1/1) ... [2019-10-07 16:17:14,152 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 04:17:13" (1/1) ... [2019-10-07 16:17:15,828 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 04:17:13" (1/1) ... [2019-10-07 16:17:15,919 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 04:17:13" (1/1) ... [2019-10-07 16:17:16,042 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 04:17:13" (1/1) ... [2019-10-07 16:17:16,216 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 16:17:16,216 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 16:17:16,216 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 16:17:16,217 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 16:17:16,218 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 04:17:13" (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 16:17:16,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 16:17:16,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 16:17:16,283 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2019-10-07 16:17:16,283 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_init [2019-10-07 16:17:16,283 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_control [2019-10-07 16:17:16,283 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2019-10-07 16:17:16,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2019-10-07 16:17:16,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2019-10-07 16:17:16,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_read_bt_packet [2019-10-07 16:17:16,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_battery_voltage [2019-10-07 16:17:16,284 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts1 [2019-10-07 16:17:16,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_sonar_sensor [2019-10-07 16:17:16,285 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts2 [2019-10-07 16:17:16,285 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_final [2019-10-07 16:17:16,285 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2019-10-07 16:17:16,285 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts2 [2019-10-07 16:17:16,285 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2019-10-07 16:17:16,286 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts1 [2019-10-07 16:17:16,286 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_Background [2019-10-07 16:17:16,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2019-10-07 16:17:16,288 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_Background [2019-10-07 16:17:16,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_schedule_jobs [2019-10-07 16:17:16,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_globals [2019-10-07 16:17:16,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2019-10-07 16:17:16,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2019-10-07 16:17:16,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2019-10-07 16:17:16,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_check_assumptions [2019-10-07 16:17:16,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_init [2019-10-07 16:17:16,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_check_assertions [2019-10-07 16:17:16,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __main [2019-10-07 16:17:16,291 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 16:17:16,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2019-10-07 16:17:16,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2019-10-07 16:17:16,292 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2019-10-07 16:17:16,292 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2019-10-07 16:17:16,292 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_shared [2019-10-07 16:17:16,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_bt_data_logger [2019-10-07 16:17:16,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_sound_tone [2019-10-07 16:17:16,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_status_monitor [2019-10-07 16:17:16,292 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2019-10-07 16:17:16,293 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2019-10-07 16:17:16,293 INFO L138 BoogieDeclarations]: Found implementation of procedure write_mode_on_lcd [2019-10-07 16:17:16,293 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 16:17:16,293 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_shared [2019-10-07 16:17:16,293 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2019-10-07 16:17:16,293 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2019-10-07 16:17:16,293 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2019-10-07 16:17:16,294 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-07 16:17:16,294 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2019-10-07 16:17:16,294 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 16:17:16,294 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-07 16:17:16,294 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-10-07 16:17:16,294 INFO L130 BoogieDeclarations]: Found specification of procedure balance_init [2019-10-07 16:17:16,294 INFO L130 BoogieDeclarations]: Found specification of procedure balance_control [2019-10-07 16:17:16,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 16:17:16,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 16:17:16,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 16:17:16,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 16:17:16,295 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-07 16:17:16,296 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-10-07 16:17:16,296 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2019-10-07 16:17:16,296 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2019-10-07 16:17:16,296 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2019-10-07 16:17:16,296 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2019-10-07 16:17:16,296 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2019-10-07 16:17:16,297 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2019-10-07 16:17:16,297 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2019-10-07 16:17:16,297 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2019-10-07 16:17:16,297 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_sound_tone [2019-10-07 16:17:16,297 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_status_monitor [2019-10-07 16:17:16,298 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_read_bt_packet [2019-10-07 16:17:16,298 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_battery_voltage [2019-10-07 16:17:16,298 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2019-10-07 16:17:16,299 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_bt_data_logger [2019-10-07 16:17:16,299 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts1 [2019-10-07 16:17:16,299 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_sonar_sensor [2019-10-07 16:17:16,300 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts2 [2019-10-07 16:17:16,300 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_final [2019-10-07 16:17:16,300 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2019-10-07 16:17:16,300 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts2 [2019-10-07 16:17:16,300 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2019-10-07 16:17:16,301 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts1 [2019-10-07 16:17:16,301 INFO L130 BoogieDeclarations]: Found specification of procedure write_mode_on_lcd [2019-10-07 16:17:16,301 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_Background [2019-10-07 16:17:16,302 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2019-10-07 16:17:16,302 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_Background [2019-10-07 16:17:16,302 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_schedule_jobs [2019-10-07 16:17:16,303 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_globals [2019-10-07 16:17:16,303 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_check_assumptions [2019-10-07 16:17:16,303 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_init [2019-10-07 16:17:16,303 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_check_assertions [2019-10-07 16:17:16,303 INFO L130 BoogieDeclarations]: Found specification of procedure __main [2019-10-07 16:17:16,303 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 16:17:16,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 16:17:16,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 16:17:16,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 16:21:28,628 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 16:21:28,628 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-07 16:21:28,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 04:21:28 BoogieIcfgContainer [2019-10-07 16:21:28,630 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 16:21:28,631 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 16:21:28,631 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 16:21:28,634 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 16:21:28,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 04:17:10" (1/3) ... [2019-10-07 16:21:28,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@135cd188 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 04:21:28, skipping insertion in model container [2019-10-07 16:21:28,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 04:17:13" (2/3) ... [2019-10-07 16:21:28,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@135cd188 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 04:21:28, skipping insertion in model container [2019-10-07 16:21:28,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 04:21:28" (3/3) ... [2019-10-07 16:21:28,637 INFO L109 eAbstractionObserver]: Analyzing ICFG rekcba_nxt.1.M4-2.c [2019-10-07 16:21:28,646 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 16:21:28,657 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 16:21:28,669 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 16:21:28,706 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 16:21:28,706 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 16:21:28,706 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 16:21:28,706 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 16:21:28,706 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 16:21:28,706 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 16:21:28,707 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 16:21:28,707 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 16:21:28,747 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states. [2019-10-07 16:21:28,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2019-10-07 16:21:28,778 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 16:21:28,779 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, 1, 1, 1, 1] [2019-10-07 16:21:28,781 INFO L410 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 16:21:28,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 16:21:28,787 INFO L82 PathProgramCache]: Analyzing trace with hash -582169640, now seen corresponding path program 1 times [2019-10-07 16:21:28,796 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 16:21:28,796 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 16:21:28,797 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 16:21:28,797 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 16:21:28,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY