/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M4-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 01:38:29,789 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 01:38:29,791 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 01:38:29,833 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 01:38:29,833 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 01:38:29,836 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 01:38:29,839 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 01:38:29,842 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 01:38:29,843 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 01:38:29,845 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 01:38:29,846 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 01:38:29,847 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 01:38:29,847 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 01:38:29,848 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 01:38:29,848 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 01:38:29,849 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 01:38:29,850 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 01:38:29,850 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 01:38:29,852 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 01:38:29,853 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 01:38:29,854 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 01:38:29,856 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 01:38:29,857 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 01:38:29,858 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 01:38:29,860 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 01:38:29,860 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 01:38:29,861 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 01:38:29,861 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 01:38:29,862 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 01:38:29,862 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 01:38:29,862 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 01:38:29,863 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 01:38:29,863 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 01:38:29,864 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 01:38:29,865 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 01:38:29,865 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 01:38:29,865 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 01:38:29,866 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 01:38:29,866 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 01:38:29,867 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 01:38:29,867 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 01:38:29,872 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 [2023-03-31 01:38:29,902 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 01:38:29,902 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 01:38:29,903 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 01:38:29,903 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 01:38:29,904 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 01:38:29,904 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 01:38:29,905 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-31 01:38:29,905 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-31 01:38:29,905 INFO L138 SettingsManager]: * Use SBE=true [2023-03-31 01:38:29,905 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 01:38:29,906 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 01:38:29,906 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 01:38:29,906 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 01:38:29,906 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 01:38:29,906 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 01:38:29,907 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 01:38:29,907 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 01:38:29,907 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 01:38:29,907 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 01:38:29,907 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 01:38:29,907 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 01:38:29,907 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 01:38:29,907 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-31 01:38:29,908 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 01:38:29,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 01:38:29,908 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 01:38:29,908 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 01:38:29,908 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 01:38:29,908 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-31 01:38:29,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 01:38:29,909 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-31 01:38:29,909 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 01:38:29,909 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-31 01:38:29,909 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-31 01:38:29,909 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-31 01:38:29,909 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-03-31 01:38:30,101 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 01:38:30,124 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 01:38:30,127 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 01:38:30,128 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 01:38:30,128 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 01:38:30,129 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M4-2.c [2023-03-31 01:38:31,438 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 01:38:31,931 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 01:38:31,932 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M4-2.c [2023-03-31 01:38:31,977 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca4c2c02d/43c782b1d2cf4eaa8265a424133e7426/FLAGaa5848f66 [2023-03-31 01:38:31,993 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca4c2c02d/43c782b1d2cf4eaa8265a424133e7426 [2023-03-31 01:38:31,995 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 01:38:31,996 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 01:38:31,997 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 01:38:31,997 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 01:38:32,000 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 01:38:32,001 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 01:38:31" (1/1) ... [2023-03-31 01:38:32,002 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@657ea4cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:38:32, skipping insertion in model container [2023-03-31 01:38:32,002 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 01:38:31" (1/1) ... [2023-03-31 01:38:32,008 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 01:38:32,154 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 01:38:32,450 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M4-2.c[1674,1687] [2023-03-31 01:38:33,607 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 01:38:33,621 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 01:38:33,646 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M4-2.c[1674,1687] [2023-03-31 01:38:34,432 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 01:38:34,455 INFO L208 MainTranslator]: Completed translation [2023-03-31 01:38:34,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:38:34 WrapperNode [2023-03-31 01:38:34,456 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 01:38:34,457 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 01:38:34,457 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 01:38:34,457 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 01:38:34,467 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:38:34" (1/1) ... [2023-03-31 01:38:34,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:38:34" (1/1) ... [2023-03-31 01:38:35,158 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:38:34" (1/1) ... [2023-03-31 01:38:35,159 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:38:34" (1/1) ... [2023-03-31 01:38:36,061 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:38:34" (1/1) ... [2023-03-31 01:38:36,164 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:38:34" (1/1) ... [2023-03-31 01:38:36,267 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:38:34" (1/1) ... [2023-03-31 01:38:36,341 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:38:34" (1/1) ... [2023-03-31 01:38:36,558 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 01:38:36,559 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 01:38:36,560 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 01:38:36,560 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 01:38:36,560 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:38:34" (1/1) ... [2023-03-31 01:38:36,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 01:38:36,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 01:38:36,589 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-03-31 01:38:36,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-03-31 01:38:36,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 01:38:36,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 01:38:36,627 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 01:38:36,628 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-03-31 01:38:36,628 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-03-31 01:38:36,628 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_init [2023-03-31 01:38:36,628 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_control [2023-03-31 01:38:36,628 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2023-03-31 01:38:36,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2023-03-31 01:38:36,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2023-03-31 01:38:36,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_read_bt_packet [2023-03-31 01:38:36,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_battery_voltage [2023-03-31 01:38:36,628 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts1 [2023-03-31 01:38:36,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_sonar_sensor [2023-03-31 01:38:36,628 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts2 [2023-03-31 01:38:36,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_final [2023-03-31 01:38:36,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-03-31 01:38:36,629 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts2 [2023-03-31 01:38:36,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-03-31 01:38:36,629 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts1 [2023-03-31 01:38:36,629 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_Background [2023-03-31 01:38:36,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2023-03-31 01:38:36,629 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_Background [2023-03-31 01:38:36,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_schedule_jobs [2023-03-31 01:38:36,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_globals [2023-03-31 01:38:36,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2023-03-31 01:38:36,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2023-03-31 01:38:36,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2023-03-31 01:38:36,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_check_assumptions [2023-03-31 01:38:36,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_init [2023-03-31 01:38:36,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_check_assertions [2023-03-31 01:38:36,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __main [2023-03-31 01:38:36,630 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 01:38:36,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2023-03-31 01:38:36,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2023-03-31 01:38:36,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2023-03-31 01:38:36,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2023-03-31 01:38:36,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_shared [2023-03-31 01:38:36,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_bt_data_logger [2023-03-31 01:38:36,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_sound_tone [2023-03-31 01:38:36,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_status_monitor [2023-03-31 01:38:36,631 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2023-03-31 01:38:36,631 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2023-03-31 01:38:36,631 INFO L138 BoogieDeclarations]: Found implementation of procedure write_mode_on_lcd [2023-03-31 01:38:36,631 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 01:38:36,632 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 01:38:36,632 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 01:38:36,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 01:38:36,632 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_shared [2023-03-31 01:38:36,632 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2023-03-31 01:38:36,632 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2023-03-31 01:38:36,632 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2023-03-31 01:38:36,633 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-03-31 01:38:36,633 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2023-03-31 01:38:36,633 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 01:38:36,633 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-03-31 01:38:36,634 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-03-31 01:38:36,634 INFO L130 BoogieDeclarations]: Found specification of procedure balance_init [2023-03-31 01:38:36,634 INFO L130 BoogieDeclarations]: Found specification of procedure balance_control [2023-03-31 01:38:36,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-03-31 01:38:36,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 01:38:36,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 01:38:36,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 01:38:36,635 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2023-03-31 01:38:36,635 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-03-31 01:38:36,635 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2023-03-31 01:38:36,635 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2023-03-31 01:38:36,635 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2023-03-31 01:38:36,635 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2023-03-31 01:38:36,635 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2023-03-31 01:38:36,635 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2023-03-31 01:38:36,635 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2023-03-31 01:38:36,635 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2023-03-31 01:38:36,635 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_sound_tone [2023-03-31 01:38:36,635 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_status_monitor [2023-03-31 01:38:36,635 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_read_bt_packet [2023-03-31 01:38:36,635 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_battery_voltage [2023-03-31 01:38:36,636 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2023-03-31 01:38:36,636 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_bt_data_logger [2023-03-31 01:38:36,636 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts1 [2023-03-31 01:38:36,636 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_sonar_sensor [2023-03-31 01:38:36,636 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts2 [2023-03-31 01:38:36,636 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_final [2023-03-31 01:38:36,637 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-03-31 01:38:36,637 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts2 [2023-03-31 01:38:36,637 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-03-31 01:38:36,637 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts1 [2023-03-31 01:38:36,637 INFO L130 BoogieDeclarations]: Found specification of procedure write_mode_on_lcd [2023-03-31 01:38:36,637 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_Background [2023-03-31 01:38:36,638 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2023-03-31 01:38:36,638 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_Background [2023-03-31 01:38:36,638 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_schedule_jobs [2023-03-31 01:38:36,638 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_globals [2023-03-31 01:38:36,638 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_check_assumptions [2023-03-31 01:38:36,638 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_init [2023-03-31 01:38:36,639 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_check_assertions [2023-03-31 01:38:36,639 INFO L130 BoogieDeclarations]: Found specification of procedure __main [2023-03-31 01:38:36,639 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 01:38:36,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 01:38:36,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 01:38:36,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 01:38:38,484 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 01:38:38,488 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 01:39:13,866 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 01:39:13,912 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 01:39:13,912 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-03-31 01:39:13,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 01:39:13 BoogieIcfgContainer [2023-03-31 01:39:13,927 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 01:39:13,930 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 01:39:13,930 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 01:39:13,933 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 01:39:13,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 01:38:31" (1/3) ... [2023-03-31 01:39:13,934 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bc8ff9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 01:39:13, skipping insertion in model container [2023-03-31 01:39:13,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:38:34" (2/3) ... [2023-03-31 01:39:13,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bc8ff9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 01:39:13, skipping insertion in model container [2023-03-31 01:39:13,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 01:39:13" (3/3) ... [2023-03-31 01:39:13,936 INFO L112 eAbstractionObserver]: Analyzing ICFG rekcba_nxt.1.M4-2.c [2023-03-31 01:39:13,951 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 01:39:13,951 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 01:39:14,264 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 01:39:14,273 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@57388d5b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-03-31 01:39:14,273 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 01:39:14,316 INFO L276 IsEmpty]: Start isEmpty. Operand has 12096 states, 7910 states have (on average 1.318331226295828) internal successors, (10428), 8025 states have internal predecessors, (10428), 4142 states have call successors, (4142), 39 states have call predecessors, (4142), 39 states have return successors, (4142), 4139 states have call predecessors, (4142), 4142 states have call successors, (4142) [2023-03-31 01:39:14,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4644 [2023-03-31 01:39:14,719 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:39:14,723 INFO L195 NwaCegarLoop]: 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, 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] [2023-03-31 01:39:14,724 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:39:14,731 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:39:14,734 INFO L85 PathProgramCache]: Analyzing trace with hash 70252091, now seen corresponding path program 1 times [2023-03-31 01:39:14,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:39:14,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537742972] [2023-03-31 01:39:14,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:39:14,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms