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.M1-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 16:16:21,156 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 16:16:21,159 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 16:16:21,178 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 16:16:21,179 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 16:16:21,181 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 16:16:21,183 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 16:16:21,193 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 16:16:21,198 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 16:16:21,201 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 16:16:21,203 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 16:16:21,204 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 16:16:21,204 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 16:16:21,206 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 16:16:21,208 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 16:16:21,210 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 16:16:21,211 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 16:16:21,212 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 16:16:21,214 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 16:16:21,219 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 16:16:21,223 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 16:16:21,226 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 16:16:21,229 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 16:16:21,230 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 16:16:21,232 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 16:16:21,233 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 16:16:21,233 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 16:16:21,235 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 16:16:21,236 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 16:16:21,237 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 16:16:21,238 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 16:16:21,240 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 16:16:21,241 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 16:16:21,241 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 16:16:21,243 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 16:16:21,243 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 16:16:21,244 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 16:16:21,244 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 16:16:21,244 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 16:16:21,245 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 16:16:21,247 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 16:16:21,248 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 16:16:21,273 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 16:16:21,274 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 16:16:21,275 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 16:16:21,276 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 16:16:21,276 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 16:16:21,276 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 16:16:21,276 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 16:16:21,277 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 16:16:21,277 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 16:16:21,277 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 16:16:21,279 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 16:16:21,280 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 16:16:21,280 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 16:16:21,280 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 16:16:21,280 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 16:16:21,281 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 16:16:21,281 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 16:16:21,281 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 16:16:21,281 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 16:16:21,281 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 16:16:21,282 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 16:16:21,282 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 16:16:21,282 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 16:16:21,282 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 16:16:21,282 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 16:16:21,283 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 16:16:21,283 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 16:16:21,283 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 16:16:21,288 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 16:16:21,573 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 16:16:21,586 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 16:16:21,590 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 16:16:21,592 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 16:16:21,592 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 16:16:21,593 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/rekcba_nxt.1.M1-2.c [2019-10-07 16:16:21,657 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8e25f58b/25396f33556d4c8ca1b074ded3382ec0/FLAGf53657fee [2019-10-07 16:16:22,301 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 16:16:22,302 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/rekcba_nxt.1.M1-2.c [2019-10-07 16:16:22,328 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8e25f58b/25396f33556d4c8ca1b074ded3382ec0/FLAGf53657fee [2019-10-07 16:16:22,539 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8e25f58b/25396f33556d4c8ca1b074ded3382ec0 [2019-10-07 16:16:22,547 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 16:16:22,549 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 16:16:22,550 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 16:16:22,550 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 16:16:22,554 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 16:16:22,555 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 04:16:22" (1/1) ... [2019-10-07 16:16:22,557 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67df4a77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 04:16:22, skipping insertion in model container [2019-10-07 16:16:22,557 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 04:16:22" (1/1) ... [2019-10-07 16:16:22,564 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 16:16:22,620 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 16:16:23,316 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 16:16:23,340 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 16:16:23,604 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 16:16:23,651 INFO L192 MainTranslator]: Completed translation [2019-10-07 16:16:23,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 04:16:23 WrapperNode [2019-10-07 16:16:23,651 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 16:16:23,653 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 16:16:23,653 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 16:16:23,653 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 16:16:23,671 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 04:16:23" (1/1) ... [2019-10-07 16:16:23,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 04:16:23" (1/1) ... [2019-10-07 16:16:23,741 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 04:16:23" (1/1) ... [2019-10-07 16:16:23,743 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 04:16:23" (1/1) ... [2019-10-07 16:16:23,894 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 04:16:23" (1/1) ... [2019-10-07 16:16:23,930 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 04:16:23" (1/1) ... [2019-10-07 16:16:23,952 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 04:16:23" (1/1) ... [2019-10-07 16:16:23,976 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 16:16:23,977 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 16:16:23,977 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 16:16:23,977 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 16:16:23,978 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 04:16:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 16:16:24,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 16:16:24,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 16:16:24,059 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2019-10-07 16:16:24,060 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_init [2019-10-07 16:16:24,060 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_control [2019-10-07 16:16:24,060 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2019-10-07 16:16:24,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2019-10-07 16:16:24,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2019-10-07 16:16:24,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_read_bt_packet [2019-10-07 16:16:24,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_battery_voltage [2019-10-07 16:16:24,062 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts1 [2019-10-07 16:16:24,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_sonar_sensor [2019-10-07 16:16:24,063 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts2 [2019-10-07 16:16:24,064 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_final [2019-10-07 16:16:24,064 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2019-10-07 16:16:24,064 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts2 [2019-10-07 16:16:24,065 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2019-10-07 16:16:24,065 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts1 [2019-10-07 16:16:24,066 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_Background [2019-10-07 16:16:24,066 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2019-10-07 16:16:24,066 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_Background [2019-10-07 16:16:24,066 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_schedule_jobs [2019-10-07 16:16:24,067 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_globals [2019-10-07 16:16:24,067 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2019-10-07 16:16:24,067 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2019-10-07 16:16:24,067 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2019-10-07 16:16:24,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_check_assumptions [2019-10-07 16:16:24,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_init [2019-10-07 16:16:24,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_check_assertions [2019-10-07 16:16:24,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __main [2019-10-07 16:16:24,069 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 16:16:24,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2019-10-07 16:16:24,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2019-10-07 16:16:24,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2019-10-07 16:16:24,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2019-10-07 16:16:24,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_shared [2019-10-07 16:16:24,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_bt_data_logger [2019-10-07 16:16:24,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_sound_tone [2019-10-07 16:16:24,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_status_monitor [2019-10-07 16:16:24,071 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2019-10-07 16:16:24,071 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2019-10-07 16:16:24,072 INFO L138 BoogieDeclarations]: Found implementation of procedure write_mode_on_lcd [2019-10-07 16:16:24,072 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 16:16:24,072 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_shared [2019-10-07 16:16:24,072 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2019-10-07 16:16:24,073 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2019-10-07 16:16:24,073 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2019-10-07 16:16:24,073 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-07 16:16:24,073 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2019-10-07 16:16:24,073 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 16:16:24,074 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-07 16:16:24,074 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-10-07 16:16:24,074 INFO L130 BoogieDeclarations]: Found specification of procedure balance_init [2019-10-07 16:16:24,074 INFO L130 BoogieDeclarations]: Found specification of procedure balance_control [2019-10-07 16:16:24,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 16:16:24,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 16:16:24,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 16:16:24,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 16:16:24,075 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-07 16:16:24,076 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-10-07 16:16:24,076 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2019-10-07 16:16:24,076 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2019-10-07 16:16:24,076 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2019-10-07 16:16:24,077 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2019-10-07 16:16:24,077 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2019-10-07 16:16:24,077 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2019-10-07 16:16:24,077 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2019-10-07 16:16:24,077 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2019-10-07 16:16:24,078 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_sound_tone [2019-10-07 16:16:24,078 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_status_monitor [2019-10-07 16:16:24,078 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_read_bt_packet [2019-10-07 16:16:24,078 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_battery_voltage [2019-10-07 16:16:24,078 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2019-10-07 16:16:24,079 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_bt_data_logger [2019-10-07 16:16:24,079 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts1 [2019-10-07 16:16:24,080 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_sonar_sensor [2019-10-07 16:16:24,080 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts2 [2019-10-07 16:16:24,081 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_final [2019-10-07 16:16:24,081 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2019-10-07 16:16:24,081 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts2 [2019-10-07 16:16:24,082 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2019-10-07 16:16:24,082 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts1 [2019-10-07 16:16:24,082 INFO L130 BoogieDeclarations]: Found specification of procedure write_mode_on_lcd [2019-10-07 16:16:24,082 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_Background [2019-10-07 16:16:24,083 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2019-10-07 16:16:24,083 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_Background [2019-10-07 16:16:24,083 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_schedule_jobs [2019-10-07 16:16:24,084 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_globals [2019-10-07 16:16:24,084 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_check_assumptions [2019-10-07 16:16:24,084 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_init [2019-10-07 16:16:24,085 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_check_assertions [2019-10-07 16:16:24,085 INFO L130 BoogieDeclarations]: Found specification of procedure __main [2019-10-07 16:16:24,085 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 16:16:24,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 16:16:24,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 16:16:24,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 16:17:10,170 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 16:17:10,170 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-07 16:17:10,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 04:17:10 BoogieIcfgContainer [2019-10-07 16:17:10,172 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 16:17:10,173 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 16:17:10,173 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 16:17:10,176 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 16:17:10,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 04:16:22" (1/3) ... [2019-10-07 16:17:10,178 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49f01dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 04:17:10, skipping insertion in model container [2019-10-07 16:17:10,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 04:16:23" (2/3) ... [2019-10-07 16:17:10,178 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49f01dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 04:17:10, skipping insertion in model container [2019-10-07 16:17:10,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 04:17:10" (3/3) ... [2019-10-07 16:17:10,181 INFO L109 eAbstractionObserver]: Analyzing ICFG rekcba_nxt.1.M1-2.c [2019-10-07 16:17:10,190 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 16:17:10,201 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 16:17:10,210 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 16:17:10,242 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 16:17:10,242 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 16:17:10,243 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 16:17:10,243 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 16:17:10,243 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 16:17:10,243 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 16:17:10,243 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 16:17:10,243 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 16:17:10,276 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states. [2019-10-07 16:17:10,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2019-10-07 16:17:10,313 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 16:17:10,315 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] [2019-10-07 16:17:10,319 INFO L410 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 16:17:10,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 16:17:10,327 INFO L82 PathProgramCache]: Analyzing trace with hash 1589296195, now seen corresponding path program 1 times [2019-10-07 16:17:10,336 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 16:17:10,336 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 16:17:10,337 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 16:17:10,337 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 16:17:10,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 16:17:20,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat