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_nxt.2.M1-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:29:51,864 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:29:51,866 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:29:51,878 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:29:51,878 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:29:51,880 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:29:51,881 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:29:51,884 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:29:51,887 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:29:51,888 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:29:51,892 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:29:51,897 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:29:51,897 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:29:51,898 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:29:51,902 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:29:51,905 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:29:51,906 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:29:51,907 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:29:51,912 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:29:51,918 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:29:51,919 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:29:51,921 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:29:51,922 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:29:51,922 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:29:51,925 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:29:51,925 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:29:51,925 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:29:51,926 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:29:51,927 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:29:51,928 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:29:51,928 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:29:51,929 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:29:51,930 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:29:51,930 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:29:51,931 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:29:51,932 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:29:51,932 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:29:51,933 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:29:51,933 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:29:51,936 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:29:51,937 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:29:51,942 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 [2019-10-15 03:29:51,958 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:29:51,958 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:29:51,960 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:29:51,960 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:29:51,960 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:29:51,961 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:29:51,961 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:29:51,961 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:29:51,961 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:29:51,962 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:29:51,962 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:29:51,962 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:29:51,962 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:29:51,962 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:29:51,963 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:29:51,963 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:29:51,963 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:29:51,963 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:29:51,964 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:29:51,964 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:29:51,964 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:29:51,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:29:51,964 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:29:51,965 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:29:51,965 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:29:51,965 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:29:51,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:29:51,966 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:29:51,966 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 [2019-10-15 03:29:52,315 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:29:52,342 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:29:52,346 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:29:52,348 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:29:52,349 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:29:52,349 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/rekh_nxt.2.M1-2.c [2019-10-15 03:29:52,435 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31e5b0dd6/2d30ea7ef0624077a2c567a10948841b/FLAG364ce2ff5 [2019-10-15 03:29:53,130 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:29:53,131 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/rekh_nxt.2.M1-2.c [2019-10-15 03:29:53,160 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31e5b0dd6/2d30ea7ef0624077a2c567a10948841b/FLAG364ce2ff5 [2019-10-15 03:29:53,305 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31e5b0dd6/2d30ea7ef0624077a2c567a10948841b [2019-10-15 03:29:53,316 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:29:53,318 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:29:53,319 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:29:53,319 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:29:53,323 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:29:53,324 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:29:53" (1/1) ... [2019-10-15 03:29:53,327 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d9af163 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:29:53, skipping insertion in model container [2019-10-15 03:29:53,327 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:29:53" (1/1) ... [2019-10-15 03:29:53,334 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:29:53,397 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:29:54,245 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:29:54,277 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:29:54,622 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:29:54,673 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:29:54,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:29:54 WrapperNode [2019-10-15 03:29:54,674 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:29:54,675 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:29:54,675 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:29:54,676 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:29:54,695 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:29:54" (1/1) ... [2019-10-15 03:29:54,696 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:29:54" (1/1) ... [2019-10-15 03:29:54,790 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:29:54" (1/1) ... [2019-10-15 03:29:54,793 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:29:54" (1/1) ... [2019-10-15 03:29:54,971 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:29:54" (1/1) ... [2019-10-15 03:29:55,001 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:29:54" (1/1) ... [2019-10-15 03:29:55,033 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:29:54" (1/1) ... [2019-10-15 03:29:55,068 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:29:55,069 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:29:55,069 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:29:55,069 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:29:55,071 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:29:54" (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 [2019-10-15 03:29:55,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:29:55,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:29:55,158 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2019-10-15 03:29:55,158 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_init [2019-10-15 03:29:55,158 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_control [2019-10-15 03:29:55,160 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2019-10-15 03:29:55,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2019-10-15 03:29:55,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2019-10-15 03:29:55,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_read_bt_packet [2019-10-15 03:29:55,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_battery_voltage [2019-10-15 03:29:55,162 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts1 [2019-10-15 03:29:55,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_sonar_sensor [2019-10-15 03:29:55,163 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts2 [2019-10-15 03:29:55,163 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2019-10-15 03:29:55,164 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts2 [2019-10-15 03:29:55,164 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2019-10-15 03:29:55,167 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts1 [2019-10-15 03:29:55,167 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_Background [2019-10-15 03:29:55,167 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2019-10-15 03:29:55,170 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_Background [2019-10-15 03:29:55,172 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_schedule_jobs [2019-10-15 03:29:55,172 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_globals [2019-10-15 03:29:55,172 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2019-10-15 03:29:55,172 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2019-10-15 03:29:55,172 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2019-10-15 03:29:55,172 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_assert_i0 [2019-10-15 03:29:55,173 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_init [2019-10-15 03:29:55,173 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_final [2019-10-15 03:29:55,173 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2019-10-15 03:29:55,173 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:29:55,173 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2019-10-15 03:29:55,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2019-10-15 03:29:55,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2019-10-15 03:29:55,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2019-10-15 03:29:55,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_shared [2019-10-15 03:29:55,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_bt_data_logger [2019-10-15 03:29:55,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_sound_tone [2019-10-15 03:29:55,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_status_monitor [2019-10-15 03:29:55,175 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2019-10-15 03:29:55,175 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2019-10-15 03:29:55,176 INFO L138 BoogieDeclarations]: Found implementation of procedure write_mode_on_lcd [2019-10-15 03:29:55,176 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:29:55,176 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_shared [2019-10-15 03:29:55,176 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_assert_i0 [2019-10-15 03:29:55,176 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2019-10-15 03:29:55,176 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2019-10-15 03:29:55,177 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2019-10-15 03:29:55,177 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-15 03:29:55,177 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2019-10-15 03:29:55,177 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:29:55,177 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-15 03:29:55,177 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-10-15 03:29:55,178 INFO L130 BoogieDeclarations]: Found specification of procedure balance_init [2019-10-15 03:29:55,178 INFO L130 BoogieDeclarations]: Found specification of procedure balance_control [2019-10-15 03:29:55,178 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:29:55,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:29:55,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:29:55,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:29:55,179 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-15 03:29:55,180 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-10-15 03:29:55,180 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2019-10-15 03:29:55,180 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2019-10-15 03:29:55,180 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2019-10-15 03:29:55,180 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2019-10-15 03:29:55,181 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2019-10-15 03:29:55,181 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2019-10-15 03:29:55,181 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2019-10-15 03:29:55,181 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2019-10-15 03:29:55,181 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_sound_tone [2019-10-15 03:29:55,181 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_status_monitor [2019-10-15 03:29:55,182 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_read_bt_packet [2019-10-15 03:29:55,182 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_battery_voltage [2019-10-15 03:29:55,182 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2019-10-15 03:29:55,183 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_bt_data_logger [2019-10-15 03:29:55,183 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts1 [2019-10-15 03:29:55,183 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_sonar_sensor [2019-10-15 03:29:55,184 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts2 [2019-10-15 03:29:55,184 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2019-10-15 03:29:55,184 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts2 [2019-10-15 03:29:55,185 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2019-10-15 03:29:55,185 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts1 [2019-10-15 03:29:55,186 INFO L130 BoogieDeclarations]: Found specification of procedure write_mode_on_lcd [2019-10-15 03:29:55,186 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_Background [2019-10-15 03:29:55,186 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2019-10-15 03:29:55,224 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_Background [2019-10-15 03:29:55,225 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_schedule_jobs [2019-10-15 03:29:55,225 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_globals [2019-10-15 03:29:55,225 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_init [2019-10-15 03:29:55,225 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_final [2019-10-15 03:29:55,225 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2019-10-15 03:29:55,225 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:29:55,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:29:55,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:29:55,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:30:32,291 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:30:32,292 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-15 03:30:32,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:30:32 BoogieIcfgContainer [2019-10-15 03:30:32,294 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:30:32,295 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:30:32,296 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:30:32,299 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:30:32,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:29:53" (1/3) ... [2019-10-15 03:30:32,301 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4323d4fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:30:32, skipping insertion in model container [2019-10-15 03:30:32,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:29:54" (2/3) ... [2019-10-15 03:30:32,302 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4323d4fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:30:32, skipping insertion in model container [2019-10-15 03:30:32,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:30:32" (3/3) ... [2019-10-15 03:30:32,305 INFO L109 eAbstractionObserver]: Analyzing ICFG rekh_nxt.2.M1-2.c [2019-10-15 03:30:32,316 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:30:32,332 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:30:32,346 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:30:32,398 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:30:32,399 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:30:32,399 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:30:32,399 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:30:32,399 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:30:32,400 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:30:32,400 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:30:32,400 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:30:32,445 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states. [2019-10-15 03:30:32,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-10-15 03:30:32,463 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:30:32,465 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, 1, 1, 1, 1] [2019-10-15 03:30:32,468 INFO L410 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===