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/rekh_ctm.1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:24:30,274 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:24:30,277 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:24:30,290 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:24:30,290 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:24:30,291 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:24:30,293 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:24:30,295 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:24:30,296 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:24:30,297 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:24:30,298 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:24:30,299 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:24:30,300 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:24:30,301 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:24:30,302 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:24:30,303 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:24:30,304 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:24:30,304 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:24:30,306 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:24:30,309 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:24:30,314 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:24:30,315 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:24:30,316 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:24:30,317 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:24:30,325 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:24:30,325 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:24:30,326 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:24:30,328 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:24:30,328 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:24:30,329 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:24:30,331 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:24:30,333 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:24:30,334 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:24:30,335 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:24:30,336 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:24:30,336 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:24:30,337 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:24:30,337 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:24:30,337 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:24:30,338 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:24:30,339 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:24:30,340 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 [2019-10-13 23:24:30,354 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:24:30,354 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:24:30,356 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:24:30,356 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:24:30,356 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:24:30,356 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:24:30,357 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:24:30,357 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:24:30,357 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:24:30,357 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:24:30,357 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:24:30,358 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:24:30,358 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:24:30,358 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:24:30,358 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:24:30,358 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:24:30,358 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:24:30,359 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:24:30,359 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:24:30,359 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:24:30,359 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:24:30,359 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:24:30,360 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:24:30,360 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:24:30,360 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:24:30,360 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:24:30,361 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:24:30,361 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:24:30,361 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 [2019-10-13 23:24:30,649 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:24:30,662 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:24:30,666 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:24:30,667 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:24:30,668 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:24:30,668 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/rekh_ctm.1.c [2019-10-13 23:24:30,733 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c26eea8c/00303d31d1054b92bec09c764156daff/FLAGfcf68fcf2 [2019-10-13 23:24:31,484 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:24:31,487 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/rekh_ctm.1.c [2019-10-13 23:24:31,520 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c26eea8c/00303d31d1054b92bec09c764156daff/FLAGfcf68fcf2 [2019-10-13 23:24:31,562 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c26eea8c/00303d31d1054b92bec09c764156daff [2019-10-13 23:24:31,573 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:24:31,577 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:24:31,578 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:24:31,578 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:24:31,582 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:24:31,583 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:24:31" (1/1) ... [2019-10-13 23:24:31,586 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@345a22c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:24:31, skipping insertion in model container [2019-10-13 23:24:31,586 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:24:31" (1/1) ... [2019-10-13 23:24:31,595 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:24:31,681 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:24:32,655 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:24:32,688 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:24:33,104 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:24:33,363 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:24:33,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:24:33 WrapperNode [2019-10-13 23:24:33,364 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:24:33,366 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:24:33,366 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:24:33,367 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:24:33,385 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:24:33" (1/1) ... [2019-10-13 23:24:33,385 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:24:33" (1/1) ... [2019-10-13 23:24:33,496 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:24:33" (1/1) ... [2019-10-13 23:24:33,497 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:24:33" (1/1) ... [2019-10-13 23:24:33,664 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:24:33" (1/1) ... [2019-10-13 23:24:33,690 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:24:33" (1/1) ... [2019-10-13 23:24:33,720 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:24:33" (1/1) ... [2019-10-13 23:24:33,765 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:24:33,765 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:24:33,766 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:24:33,766 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:24:33,775 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:24:33" (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 [2019-10-13 23:24:33,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:24:33,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:24:33,848 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2019-10-13 23:24:33,848 INFO L138 BoogieDeclarations]: Found implementation of procedure calibrate [2019-10-13 23:24:33,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2019-10-13 23:24:33,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_nxtcolorsensor_mode [2019-10-13 23:24:33,850 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2019-10-13 23:24:33,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_is_ENTER_button_pressed [2019-10-13 23:24:33,850 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2019-10-13 23:24:33,851 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2019-10-13 23:24:33,851 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2019-10-13 23:24:33,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_nxtcolorsensor_light [2019-10-13 23:24:33,852 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2019-10-13 23:24:33,852 INFO L138 BoogieDeclarations]: Found implementation of procedure transition [2019-10-13 23:24:33,852 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2019-10-13 23:24:33,852 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2019-10-13 23:24:33,855 INFO L138 BoogieDeclarations]: Found implementation of procedure Controller [2019-10-13 23:24:33,855 INFO L138 BoogieDeclarations]: Found implementation of procedure Reader [2019-10-13 23:24:33,855 INFO L138 BoogieDeclarations]: Found implementation of procedure Writer [2019-10-13 23:24:33,855 INFO L138 BoogieDeclarations]: Found implementation of procedure TapeMover [2019-10-13 23:24:33,856 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2019-10-13 23:24:33,856 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperController [2019-10-13 23:24:33,856 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2019-10-13 23:24:33,856 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperTapeMover [2019-10-13 23:24:33,856 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2019-10-13 23:24:33,857 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperReader [2019-10-13 23:24:33,857 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2019-10-13 23:24:33,857 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperWriter [2019-10-13 23:24:33,857 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_schedule_jobs [2019-10-13 23:24:33,857 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_globals [2019-10-13 23:24:33,857 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2019-10-13 23:24:33,857 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2019-10-13 23:24:33,858 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2019-10-13 23:24:33,858 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2019-10-13 23:24:33,858 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_assert_i0 [2019-10-13 23:24:33,858 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_init [2019-10-13 23:24:33,859 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_final [2019-10-13 23:24:33,859 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2019-10-13 23:24:33,859 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:24:33,859 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2019-10-13 23:24:33,859 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2019-10-13 23:24:33,859 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2019-10-13 23:24:33,860 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2019-10-13 23:24:33,860 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2019-10-13 23:24:33,860 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2019-10-13 23:24:33,860 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2019-10-13 23:24:33,860 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2019-10-13 23:24:33,860 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2019-10-13 23:24:33,860 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2019-10-13 23:24:33,861 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2019-10-13 23:24:33,861 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_dir [2019-10-13 23:24:33,861 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_read [2019-10-13 23:24:33,861 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2019-10-13 23:24:33,861 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2019-10-13 23:24:33,861 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2019-10-13 23:24:33,861 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2019-10-13 23:24:33,862 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2019-10-13 23:24:33,862 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_job_count_Controller [2019-10-13 23:24:33,862 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_job_count_TapeMover [2019-10-13 23:24:33,863 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_job_count_Reader [2019-10-13 23:24:33,863 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_job_count_Writer [2019-10-13 23:24:33,863 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2019-10-13 23:24:33,863 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2019-10-13 23:24:33,863 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_speed [2019-10-13 23:24:33,864 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2019-10-13 23:24:33,864 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_speed [2019-10-13 23:24:33,864 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2019-10-13 23:24:33,864 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_speed [2019-10-13 23:24:33,864 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtcolorsensor_data_mode [2019-10-13 23:24:33,864 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtcolorsensor_mode [2019-10-13 23:24:33,864 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2019-10-13 23:24:33,865 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2019-10-13 23:24:33,865 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2019-10-13 23:24:33,866 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2019-10-13 23:24:33,866 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2019-10-13 23:24:33,866 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_threshold [2019-10-13 23:24:33,866 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2019-10-13 23:24:33,867 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2019-10-13 23:24:33,867 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2019-10-13 23:24:33,867 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_job_count_Controller [2019-10-13 23:24:33,867 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_job_count_TapeMover [2019-10-13 23:24:33,868 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_job_count_Reader [2019-10-13 23:24:33,868 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_job_count_Writer [2019-10-13 23:24:33,868 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_shared [2019-10-13 23:24:33,869 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:24:33,869 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_shared [2019-10-13 23:24:33,870 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_assert_i0 [2019-10-13 23:24:33,870 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2019-10-13 23:24:33,870 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2019-10-13 23:24:33,870 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2019-10-13 23:24:33,870 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2019-10-13 23:24:33,870 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ushort [2019-10-13 23:24:33,871 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-13 23:24:33,871 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:24:33,871 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-10-13 23:24:33,871 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2019-10-13 23:24:33,871 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cpu_lock [2019-10-13 23:24:33,871 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cpu_unlock [2019-10-13 23:24:33,871 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 23:24:33,872 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-10-13 23:24:33,872 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2019-10-13 23:24:33,872 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2019-10-13 23:24:33,872 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2019-10-13 23:24:33,872 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2019-10-13 23:24:33,872 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2019-10-13 23:24:33,872 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_speed [2019-10-13 23:24:33,873 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2019-10-13 23:24:33,873 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2019-10-13 23:24:33,873 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2019-10-13 23:24:33,873 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_speed [2019-10-13 23:24:33,873 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2019-10-13 23:24:33,873 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2019-10-13 23:24:33,873 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2019-10-13 23:24:33,874 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_speed [2019-10-13 23:24:33,874 INFO L130 BoogieDeclarations]: Found specification of procedure calibrate [2019-10-13 23:24:33,874 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2019-10-13 23:24:33,874 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtcolorsensor_data_mode [2019-10-13 23:24:33,875 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2019-10-13 23:24:33,875 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtcolorsensor_mode [2019-10-13 23:24:33,875 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2019-10-13 23:24:33,876 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_nxtcolorsensor_mode [2019-10-13 23:24:33,876 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2019-10-13 23:24:33,876 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_is_ENTER_button_pressed [2019-10-13 23:24:33,876 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2019-10-13 23:24:33,877 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2019-10-13 23:24:33,878 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2019-10-13 23:24:33,878 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_nxtcolorsensor_light [2019-10-13 23:24:33,878 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2019-10-13 23:24:33,878 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2019-10-13 23:24:33,878 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2019-10-13 23:24:33,878 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2019-10-13 23:24:33,879 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2019-10-13 23:24:33,879 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_dir [2019-10-13 23:24:33,880 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2019-10-13 23:24:33,883 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_read [2019-10-13 23:24:33,884 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2019-10-13 23:24:33,884 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2019-10-13 23:24:33,884 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2019-10-13 23:24:33,885 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2019-10-13 23:24:33,885 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_threshold [2019-10-13 23:24:33,885 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2019-10-13 23:24:33,885 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2019-10-13 23:24:33,885 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2019-10-13 23:24:33,886 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2019-10-13 23:24:33,893 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2019-10-13 23:24:33,893 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2019-10-13 23:24:33,894 INFO L130 BoogieDeclarations]: Found specification of procedure transition [2019-10-13 23:24:33,894 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-10-13 23:24:33,894 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2019-10-13 23:24:33,894 INFO L130 BoogieDeclarations]: Found specification of procedure Controller [2019-10-13 23:24:33,895 INFO L130 BoogieDeclarations]: Found specification of procedure Reader [2019-10-13 23:24:33,895 INFO L130 BoogieDeclarations]: Found specification of procedure Writer [2019-10-13 23:24:33,895 INFO L130 BoogieDeclarations]: Found specification of procedure TapeMover [2019-10-13 23:24:33,895 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_job_count_Controller [2019-10-13 23:24:33,895 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_job_count_Controller [2019-10-13 23:24:33,895 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2019-10-13 23:24:33,895 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperController [2019-10-13 23:24:33,895 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_job_count_TapeMover [2019-10-13 23:24:33,896 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_job_count_TapeMover [2019-10-13 23:24:33,896 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2019-10-13 23:24:33,896 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperTapeMover [2019-10-13 23:24:33,896 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_job_count_Reader [2019-10-13 23:24:33,896 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_job_count_Reader [2019-10-13 23:24:33,896 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2019-10-13 23:24:33,896 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperReader [2019-10-13 23:24:33,896 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_job_count_Writer [2019-10-13 23:24:33,897 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_job_count_Writer [2019-10-13 23:24:33,897 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2019-10-13 23:24:33,897 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperWriter [2019-10-13 23:24:33,897 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_schedule_jobs [2019-10-13 23:24:33,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:24:33,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:24:33,897 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_globals [2019-10-13 23:24:33,898 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_init [2019-10-13 23:24:33,898 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_final [2019-10-13 23:24:33,898 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2019-10-13 23:24:33,898 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:24:33,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:24:33,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:24:33,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:24:33,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:24:33,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:25:07,225 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:25:07,226 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-13 23:25:07,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:25:07 BoogieIcfgContainer [2019-10-13 23:25:07,228 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:25:07,229 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:25:07,229 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:25:07,233 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:25:07,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:24:31" (1/3) ... [2019-10-13 23:25:07,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a666443 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:25:07, skipping insertion in model container [2019-10-13 23:25:07,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:24:33" (2/3) ... [2019-10-13 23:25:07,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a666443 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:25:07, skipping insertion in model container [2019-10-13 23:25:07,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:25:07" (3/3) ... [2019-10-13 23:25:07,236 INFO L109 eAbstractionObserver]: Analyzing ICFG rekh_ctm.1.c [2019-10-13 23:25:07,246 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:25:07,256 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:25:07,268 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:25:07,302 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:25:07,303 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:25:07,303 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:25:07,303 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:25:07,303 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:25:07,303 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:25:07,303 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:25:07,303 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:25:07,348 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states. [2019-10-13 23:25:07,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-10-13 23:25:07,355 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:25:07,356 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:25:07,358 INFO L410 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:25:07,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:25:07,364 INFO L82 PathProgramCache]: Analyzing trace with hash 1000201154, now seen corresponding path program 1 times [2019-10-13 23:25:07,374 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:25:07,374 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347563797] [2019-10-13 23:25:07,375 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:25:07,375 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:25:07,375 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:25:07,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat