/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/seq-mthreaded/rekcba_nxt.1.M4-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 06:18:55,907 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 06:18:55,910 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 06:18:55,944 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 06:18:55,944 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 06:18:55,946 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 06:18:55,947 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 06:18:55,950 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 06:18:55,952 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 06:18:55,953 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 06:18:55,954 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 06:18:55,955 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 06:18:55,956 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 06:18:55,957 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 06:18:55,958 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 06:18:55,960 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 06:18:55,961 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 06:18:55,962 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 06:18:55,964 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 06:18:55,966 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 06:18:55,968 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 06:18:55,969 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 06:18:55,970 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 06:18:55,974 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 06:18:55,981 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 06:18:55,981 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 06:18:55,981 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 06:18:55,986 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 06:18:55,986 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 06:18:55,987 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 06:18:55,987 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 06:18:55,988 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 06:18:55,989 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 06:18:55,990 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 06:18:55,991 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 06:18:55,991 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 06:18:55,992 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 06:18:55,992 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 06:18:55,993 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 06:18:55,994 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 06:18:55,994 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 06:18:55,996 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-27 06:18:56,044 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 06:18:56,044 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 06:18:56,046 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 06:18:56,046 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 06:18:56,047 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 06:18:56,047 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 06:18:56,047 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 06:18:56,047 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 06:18:56,047 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 06:18:56,047 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 06:18:56,048 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 06:18:56,049 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 06:18:56,050 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 06:18:56,050 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 06:18:56,050 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 06:18:56,050 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 06:18:56,050 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 06:18:56,051 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 06:18:56,051 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 06:18:56,051 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 06:18:56,051 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 06:18:56,052 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 06:18:56,052 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 06:18:56,052 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 06:18:56,053 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 06:18:56,053 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 06:18:56,053 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 06:18:56,053 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 06:18:56,054 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 06:18:56,054 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 06:18:56,429 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 06:18:56,453 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 06:18:56,456 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 06:18:56,458 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 06:18:56,459 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 06:18:56,460 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/rekcba_nxt.1.M4-2.c [2020-10-27 06:18:56,540 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c6cd3f2f4/1601aca49fd040129008412d4e7af86a/FLAGd9f9a1d8d [2020-10-27 06:18:57,520 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 06:18:57,521 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/rekcba_nxt.1.M4-2.c [2020-10-27 06:18:57,593 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c6cd3f2f4/1601aca49fd040129008412d4e7af86a/FLAGd9f9a1d8d [2020-10-27 06:18:57,973 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c6cd3f2f4/1601aca49fd040129008412d4e7af86a [2020-10-27 06:18:57,976 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 06:18:57,982 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 06:18:57,983 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 06:18:57,984 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 06:18:57,987 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 06:18:57,988 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 06:18:57" (1/1) ... [2020-10-27 06:18:57,992 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50ad4e30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:18:57, skipping insertion in model container [2020-10-27 06:18:57,992 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 06:18:57" (1/1) ... [2020-10-27 06:18:58,000 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 06:18:58,224 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 06:18:59,982 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 06:18:59,996 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 06:19:01,162 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 06:19:01,201 INFO L208 MainTranslator]: Completed translation [2020-10-27 06:19:01,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:19:01 WrapperNode [2020-10-27 06:19:01,202 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 06:19:01,203 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 06:19:01,204 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 06:19:01,204 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 06:19:01,219 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:19:01" (1/1) ... [2020-10-27 06:19:01,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:19:01" (1/1) ... [2020-10-27 06:19:02,007 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:19:01" (1/1) ... [2020-10-27 06:19:02,007 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:19:01" (1/1) ... [2020-10-27 06:19:02,840 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:19:01" (1/1) ... [2020-10-27 06:19:02,935 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:19:01" (1/1) ... [2020-10-27 06:19:03,123 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:19:01" (1/1) ... [2020-10-27 06:19:03,296 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 06:19:03,298 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 06:19:03,299 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 06:19:03,299 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 06:19:03,300 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:19:01" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-27 06:19:03,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 06:19:03,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 06:19:03,397 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 06:19:03,397 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 06:19:03,397 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-27 06:19:03,397 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_init [2020-10-27 06:19:03,398 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_control [2020-10-27 06:19:03,398 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2020-10-27 06:19:03,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2020-10-27 06:19:03,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2020-10-27 06:19:03,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_read_bt_packet [2020-10-27 06:19:03,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_battery_voltage [2020-10-27 06:19:03,399 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts1 [2020-10-27 06:19:03,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_sonar_sensor [2020-10-27 06:19:03,400 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts2 [2020-10-27 06:19:03,401 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_final [2020-10-27 06:19:03,401 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2020-10-27 06:19:03,401 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts2 [2020-10-27 06:19:03,401 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2020-10-27 06:19:03,401 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts1 [2020-10-27 06:19:03,402 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_Background [2020-10-27 06:19:03,402 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2020-10-27 06:19:03,402 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_Background [2020-10-27 06:19:03,402 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_schedule_jobs [2020-10-27 06:19:03,402 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_globals [2020-10-27 06:19:03,402 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2020-10-27 06:19:03,402 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2020-10-27 06:19:03,403 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2020-10-27 06:19:03,403 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_check_assumptions [2020-10-27 06:19:03,403 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_init [2020-10-27 06:19:03,403 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_check_assertions [2020-10-27 06:19:03,403 INFO L138 BoogieDeclarations]: Found implementation of procedure __main [2020-10-27 06:19:03,403 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 06:19:03,403 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2020-10-27 06:19:03,403 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2020-10-27 06:19:03,404 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2020-10-27 06:19:03,404 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2020-10-27 06:19:03,404 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_shared [2020-10-27 06:19:03,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_bt_data_logger [2020-10-27 06:19:03,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_sound_tone [2020-10-27 06:19:03,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_status_monitor [2020-10-27 06:19:03,404 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2020-10-27 06:19:03,405 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2020-10-27 06:19:03,405 INFO L138 BoogieDeclarations]: Found implementation of procedure write_mode_on_lcd [2020-10-27 06:19:03,405 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 06:19:03,405 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 06:19:03,405 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 06:19:03,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 06:19:03,405 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_shared [2020-10-27 06:19:03,406 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2020-10-27 06:19:03,406 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2020-10-27 06:19:03,406 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2020-10-27 06:19:03,406 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-27 06:19:03,406 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-27 06:19:03,406 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 06:19:03,407 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 06:19:03,407 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-27 06:19:03,407 INFO L130 BoogieDeclarations]: Found specification of procedure balance_init [2020-10-27 06:19:03,407 INFO L130 BoogieDeclarations]: Found specification of procedure balance_control [2020-10-27 06:19:03,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 06:19:03,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 06:19:03,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 06:19:03,408 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-27 06:19:03,408 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-27 06:19:03,409 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2020-10-27 06:19:03,409 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2020-10-27 06:19:03,409 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2020-10-27 06:19:03,409 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2020-10-27 06:19:03,409 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2020-10-27 06:19:03,410 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2020-10-27 06:19:03,410 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2020-10-27 06:19:03,410 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2020-10-27 06:19:03,411 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_sound_tone [2020-10-27 06:19:03,412 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_status_monitor [2020-10-27 06:19:03,412 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_read_bt_packet [2020-10-27 06:19:03,412 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_battery_voltage [2020-10-27 06:19:03,412 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2020-10-27 06:19:03,412 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_bt_data_logger [2020-10-27 06:19:03,412 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts1 [2020-10-27 06:19:03,412 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_sonar_sensor [2020-10-27 06:19:03,413 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts2 [2020-10-27 06:19:03,413 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_final [2020-10-27 06:19:03,413 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2020-10-27 06:19:03,414 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts2 [2020-10-27 06:19:03,414 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2020-10-27 06:19:03,415 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts1 [2020-10-27 06:19:03,415 INFO L130 BoogieDeclarations]: Found specification of procedure write_mode_on_lcd [2020-10-27 06:19:03,415 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_Background [2020-10-27 06:19:03,415 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2020-10-27 06:19:03,415 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_Background [2020-10-27 06:19:03,415 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_schedule_jobs [2020-10-27 06:19:03,415 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_globals [2020-10-27 06:19:03,416 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_check_assumptions [2020-10-27 06:19:03,416 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_init [2020-10-27 06:19:03,416 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_check_assertions [2020-10-27 06:19:03,416 INFO L130 BoogieDeclarations]: Found specification of procedure __main [2020-10-27 06:19:03,416 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 06:19:03,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 06:19:03,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 06:19:03,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 06:19:36,636 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 06:19:36,637 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 06:19:36,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:19:36 BoogieIcfgContainer [2020-10-27 06:19:36,649 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 06:19:36,651 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 06:19:36,651 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 06:19:36,655 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 06:19:36,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 06:18:57" (1/3) ... [2020-10-27 06:19:36,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c0301b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 06:19:36, skipping insertion in model container [2020-10-27 06:19:36,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:19:01" (2/3) ... [2020-10-27 06:19:36,657 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c0301b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 06:19:36, skipping insertion in model container [2020-10-27 06:19:36,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:19:36" (3/3) ... [2020-10-27 06:19:36,658 INFO L111 eAbstractionObserver]: Analyzing ICFG rekcba_nxt.1.M4-2.c [2020-10-27 06:19:36,671 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 06:19:36,679 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 06:19:36,694 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 06:19:36,752 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 06:19:36,753 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 06:19:36,753 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 06:19:36,753 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 06:19:36,753 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 06:19:36,753 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 06:19:36,753 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 06:19:36,754 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 06:19:36,937 INFO L276 IsEmpty]: Start isEmpty. Operand 12100 states. [2020-10-27 06:19:37,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4645 [2020-10-27 06:19:37,840 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 06:19:37,845 INFO L422 BasicCegarLoop]: trace histogram [337, 337, 337, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 06:19:37,846 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 06:19:37,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 06:19:37,857 INFO L82 PathProgramCache]: Analyzing trace with hash 1801769237, now seen corresponding path program 1 times [2020-10-27 06:19:37,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 06:19:37,867 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [797512114] [2020-10-27 06:19:37,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY