/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/rekh_nxt.2.M4-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 01:40:41,219 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 01:40:41,220 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 01:40:41,251 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 01:40:41,251 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 01:40:41,252 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 01:40:41,258 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 01:40:41,261 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 01:40:41,262 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 01:40:41,267 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 01:40:41,269 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 01:40:41,270 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 01:40:41,270 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 01:40:41,275 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 01:40:41,275 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 01:40:41,276 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 01:40:41,277 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 01:40:41,278 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 01:40:41,280 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 01:40:41,283 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 01:40:41,284 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 01:40:41,286 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 01:40:41,287 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 01:40:41,287 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 01:40:41,291 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 01:40:41,291 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 01:40:41,292 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 01:40:41,293 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 01:40:41,293 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 01:40:41,294 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 01:40:41,294 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 01:40:41,294 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 01:40:41,295 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 01:40:41,296 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 01:40:41,297 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 01:40:41,297 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 01:40:41,297 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 01:40:41,297 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 01:40:41,297 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 01:40:41,298 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 01:40:41,298 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 01:40:41,300 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 01:40:41,324 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 01:40:41,324 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 01:40:41,324 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 01:40:41,325 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 01:40:41,326 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 01:40:41,326 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 01:40:41,326 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-31 01:40:41,326 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-31 01:40:41,326 INFO L138 SettingsManager]: * Use SBE=true [2023-03-31 01:40:41,326 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 01:40:41,327 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 01:40:41,327 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 01:40:41,327 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 01:40:41,327 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 01:40:41,327 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 01:40:41,328 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 01:40:41,328 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 01:40:41,328 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 01:40:41,328 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 01:40:41,328 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 01:40:41,328 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 01:40:41,328 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 01:40:41,328 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-31 01:40:41,328 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 01:40:41,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 01:40:41,329 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 01:40:41,329 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 01:40:41,329 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 01:40:41,329 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-31 01:40:41,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 01:40:41,329 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-31 01:40:41,329 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 01:40:41,330 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-31 01:40:41,330 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-31 01:40:41,330 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-31 01:40:41,330 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-03-31 01:40:41,526 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 01:40:41,544 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 01:40:41,546 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 01:40:41,547 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 01:40:41,548 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 01:40:41,549 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_nxt.2.M4-1.c [2023-03-31 01:40:42,581 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 01:40:42,878 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 01:40:42,878 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_nxt.2.M4-1.c [2023-03-31 01:40:42,895 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4cf16272c/ad388ee7b98249d99075dfeb7cf3e356/FLAG141175986 [2023-03-31 01:40:42,909 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4cf16272c/ad388ee7b98249d99075dfeb7cf3e356 [2023-03-31 01:40:42,911 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 01:40:42,912 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 01:40:42,913 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 01:40:42,913 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 01:40:42,916 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 01:40:42,916 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 01:40:42" (1/1) ... [2023-03-31 01:40:42,917 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59168845 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:40:42, skipping insertion in model container [2023-03-31 01:40:42,917 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 01:40:42" (1/1) ... [2023-03-31 01:40:42,923 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 01:40:42,977 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 01:40:43,110 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/rekh_nxt.2.M4-1.c[1682,1695] [2023-03-31 01:40:43,437 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 01:40:43,449 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 01:40:43,459 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/rekh_nxt.2.M4-1.c[1682,1695] [2023-03-31 01:40:43,632 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 01:40:43,648 INFO L208 MainTranslator]: Completed translation [2023-03-31 01:40:43,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:40:43 WrapperNode [2023-03-31 01:40:43,648 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 01:40:43,649 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 01:40:43,649 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 01:40:43,649 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 01:40:43,657 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:40:43" (1/1) ... [2023-03-31 01:40:43,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:40:43" (1/1) ... [2023-03-31 01:40:43,710 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:40:43" (1/1) ... [2023-03-31 01:40:43,710 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:40:43" (1/1) ... [2023-03-31 01:40:43,776 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:40:43" (1/1) ... [2023-03-31 01:40:43,793 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:40:43" (1/1) ... [2023-03-31 01:40:43,813 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:40:43" (1/1) ... [2023-03-31 01:40:43,827 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:40:43" (1/1) ... [2023-03-31 01:40:43,846 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 01:40:43,847 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 01:40:43,847 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 01:40:43,848 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 01:40:43,848 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:40:43" (1/1) ... [2023-03-31 01:40:43,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 01:40:43,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 01:40:43,872 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 01:40:43,892 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 01:40:43,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 01:40:43,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 01:40:43,907 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 01:40:43,907 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-03-31 01:40:43,907 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-03-31 01:40:43,907 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_init [2023-03-31 01:40:43,907 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_control [2023-03-31 01:40:43,907 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2023-03-31 01:40:43,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2023-03-31 01:40:43,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2023-03-31 01:40:43,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_read_bt_packet [2023-03-31 01:40:43,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_battery_voltage [2023-03-31 01:40:43,908 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts1 [2023-03-31 01:40:43,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_sonar_sensor [2023-03-31 01:40:43,908 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts2 [2023-03-31 01:40:43,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-03-31 01:40:43,908 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts2 [2023-03-31 01:40:43,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-03-31 01:40:43,908 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts1 [2023-03-31 01:40:43,908 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_Background [2023-03-31 01:40:43,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2023-03-31 01:40:43,908 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_Background [2023-03-31 01:40:43,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_schedule_jobs [2023-03-31 01:40:43,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_globals [2023-03-31 01:40:43,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2023-03-31 01:40:43,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2023-03-31 01:40:43,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2023-03-31 01:40:43,909 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_assert_i0 [2023-03-31 01:40:43,909 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_init [2023-03-31 01:40:43,909 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_final [2023-03-31 01:40:43,909 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2023-03-31 01:40:43,909 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 01:40:43,909 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2023-03-31 01:40:43,909 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2023-03-31 01:40:43,909 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2023-03-31 01:40:43,909 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2023-03-31 01:40:43,909 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_shared [2023-03-31 01:40:43,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_bt_data_logger [2023-03-31 01:40:43,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_sound_tone [2023-03-31 01:40:43,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_status_monitor [2023-03-31 01:40:43,910 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2023-03-31 01:40:43,910 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2023-03-31 01:40:43,910 INFO L138 BoogieDeclarations]: Found implementation of procedure write_mode_on_lcd [2023-03-31 01:40:43,910 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 01:40:43,910 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 01:40:43,910 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 01:40:43,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 01:40:43,910 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_shared [2023-03-31 01:40:43,910 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_assert_i0 [2023-03-31 01:40:43,910 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2023-03-31 01:40:43,910 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2023-03-31 01:40:43,911 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2023-03-31 01:40:43,911 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-03-31 01:40:43,911 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2023-03-31 01:40:43,912 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 01:40:43,912 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-03-31 01:40:43,912 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-03-31 01:40:43,912 INFO L130 BoogieDeclarations]: Found specification of procedure balance_init [2023-03-31 01:40:43,912 INFO L130 BoogieDeclarations]: Found specification of procedure balance_control [2023-03-31 01:40:43,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-03-31 01:40:43,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 01:40:43,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 01:40:43,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 01:40:43,913 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2023-03-31 01:40:43,913 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-03-31 01:40:43,913 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2023-03-31 01:40:43,913 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2023-03-31 01:40:43,913 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2023-03-31 01:40:43,913 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2023-03-31 01:40:43,913 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2023-03-31 01:40:43,913 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2023-03-31 01:40:43,913 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2023-03-31 01:40:43,913 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2023-03-31 01:40:43,913 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_sound_tone [2023-03-31 01:40:43,913 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_status_monitor [2023-03-31 01:40:43,913 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_read_bt_packet [2023-03-31 01:40:43,914 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_battery_voltage [2023-03-31 01:40:43,914 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2023-03-31 01:40:43,914 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_bt_data_logger [2023-03-31 01:40:43,914 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts1 [2023-03-31 01:40:43,914 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_sonar_sensor [2023-03-31 01:40:43,914 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts2 [2023-03-31 01:40:43,914 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-03-31 01:40:43,914 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts2 [2023-03-31 01:40:43,914 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-03-31 01:40:43,914 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts1 [2023-03-31 01:40:43,914 INFO L130 BoogieDeclarations]: Found specification of procedure write_mode_on_lcd [2023-03-31 01:40:43,914 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_Background [2023-03-31 01:40:43,914 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2023-03-31 01:40:43,914 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_Background [2023-03-31 01:40:43,915 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_schedule_jobs [2023-03-31 01:40:43,915 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_globals [2023-03-31 01:40:43,915 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_init [2023-03-31 01:40:43,915 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_final [2023-03-31 01:40:43,915 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2023-03-31 01:40:43,915 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 01:40:43,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 01:40:43,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 01:40:43,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 01:40:44,308 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 01:40:44,310 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 01:40:51,230 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 01:40:51,249 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 01:40:51,249 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-03-31 01:40:51,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 01:40:51 BoogieIcfgContainer [2023-03-31 01:40:51,252 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 01:40:51,254 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 01:40:51,254 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 01:40:51,257 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 01:40:51,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 01:40:42" (1/3) ... [2023-03-31 01:40:51,257 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@767151a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 01:40:51, skipping insertion in model container [2023-03-31 01:40:51,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:40:43" (2/3) ... [2023-03-31 01:40:51,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@767151a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 01:40:51, skipping insertion in model container [2023-03-31 01:40:51,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 01:40:51" (3/3) ... [2023-03-31 01:40:51,259 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_nxt.2.M4-1.c [2023-03-31 01:40:51,271 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 01:40:51,272 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 01:40:51,330 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 01:40:51,335 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;@4ec8141d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-03-31 01:40:51,335 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 01:40:51,344 INFO L276 IsEmpty]: Start isEmpty. Operand has 1733 states, 1029 states have (on average 1.2196307094266279) internal successors, (1255), 1035 states have internal predecessors, (1255), 661 states have call successors, (661), 38 states have call predecessors, (661), 38 states have return successors, (661), 658 states have call predecessors, (661), 661 states have call successors, (661) [2023-03-31 01:40:51,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1329 [2023-03-31 01:40:51,401 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:40:51,402 INFO L195 NwaCegarLoop]: trace histogram [209, 209, 209, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:40:51,402 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:40:51,406 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:40:51,406 INFO L85 PathProgramCache]: Analyzing trace with hash -861597774, now seen corresponding path program 1 times [2023-03-31 01:40:51,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:40:51,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146695176] [2023-03-31 01:40:51,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:40:51,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms