/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.M4-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 01:40:42,651 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 01:40:42,653 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 01:40:42,682 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 01:40:42,682 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 01:40:42,683 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 01:40:42,684 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 01:40:42,689 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 01:40:42,690 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 01:40:42,691 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 01:40:42,692 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 01:40:42,693 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 01:40:42,693 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 01:40:42,694 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 01:40:42,695 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 01:40:42,696 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 01:40:42,696 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 01:40:42,697 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 01:40:42,699 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 01:40:42,706 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 01:40:42,710 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 01:40:42,715 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 01:40:42,716 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 01:40:42,717 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 01:40:42,720 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 01:40:42,720 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 01:40:42,721 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 01:40:42,721 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 01:40:42,722 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 01:40:42,722 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 01:40:42,723 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 01:40:42,723 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 01:40:42,724 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 01:40:42,730 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 01:40:42,732 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 01:40:42,732 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 01:40:42,733 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 01:40:42,733 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 01:40:42,734 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 01:40:42,736 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 01:40:42,737 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 01:40:42,739 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 01:40:42,774 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 01:40:42,774 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 01:40:42,775 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 01:40:42,775 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 01:40:42,775 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 01:40:42,775 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 01:40:42,776 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-31 01:40:42,776 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-31 01:40:42,776 INFO L138 SettingsManager]: * Use SBE=true [2023-03-31 01:40:42,776 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 01:40:42,776 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 01:40:42,777 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 01:40:42,777 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 01:40:42,777 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 01:40:42,777 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 01:40:42,777 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 01:40:42,777 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 01:40:42,777 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 01:40:42,777 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 01:40:42,778 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 01:40:42,778 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 01:40:42,778 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 01:40:42,778 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-31 01:40:42,778 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 01:40:42,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 01:40:42,778 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 01:40:42,778 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 01:40:42,779 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 01:40:42,779 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-31 01:40:42,779 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 01:40:42,779 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-31 01:40:42,779 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 01:40:42,779 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-31 01:40:42,779 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-31 01:40:42,779 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-31 01:40:42,779 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-03-31 01:40:43,005 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 01:40:43,027 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 01:40:43,033 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 01:40:43,034 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 01:40:43,034 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 01:40:43,035 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_nxt.2.M4-2.c [2023-03-31 01:40:44,294 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 01:40:44,641 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 01:40:44,641 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_nxt.2.M4-2.c [2023-03-31 01:40:44,671 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37a43b100/c2848befb30c467ea4b217922bcede51/FLAG55e226657 [2023-03-31 01:40:44,690 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37a43b100/c2848befb30c467ea4b217922bcede51 [2023-03-31 01:40:44,692 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 01:40:44,693 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 01:40:44,698 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 01:40:44,698 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 01:40:44,701 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 01:40:44,703 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 01:40:44" (1/1) ... [2023-03-31 01:40:44,704 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17ba5964 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:40:44, skipping insertion in model container [2023-03-31 01:40:44,704 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 01:40:44" (1/1) ... [2023-03-31 01:40:44,710 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 01:40:44,777 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 01:40:44,933 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.M4-2.c[1765,1778] [2023-03-31 01:40:45,279 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 01:40:45,294 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 01:40:45,307 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.M4-2.c[1765,1778] [2023-03-31 01:40:45,485 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 01:40:45,505 INFO L208 MainTranslator]: Completed translation [2023-03-31 01:40:45,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:40:45 WrapperNode [2023-03-31 01:40:45,506 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 01:40:45,507 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 01:40:45,507 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 01:40:45,508 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 01:40:45,517 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:40:45" (1/1) ... [2023-03-31 01:40:45,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:40:45" (1/1) ... [2023-03-31 01:40:45,591 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:40:45" (1/1) ... [2023-03-31 01:40:45,592 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:40:45" (1/1) ... [2023-03-31 01:40:45,726 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:40:45" (1/1) ... [2023-03-31 01:40:45,747 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:40:45" (1/1) ... [2023-03-31 01:40:45,771 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:40:45" (1/1) ... [2023-03-31 01:40:45,829 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:40:45" (1/1) ... [2023-03-31 01:40:45,862 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 01:40:45,863 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 01:40:45,863 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 01:40:45,863 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 01:40:45,864 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:40:45" (1/1) ... [2023-03-31 01:40:45,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 01:40:45,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 01:40:45,900 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 01:40:45,927 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 01:40:45,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 01:40:45,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 01:40:45,945 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 01:40:45,945 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-03-31 01:40:45,945 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-03-31 01:40:45,945 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_init [2023-03-31 01:40:45,945 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_control [2023-03-31 01:40:45,945 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2023-03-31 01:40:45,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2023-03-31 01:40:45,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2023-03-31 01:40:45,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_read_bt_packet [2023-03-31 01:40:45,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_battery_voltage [2023-03-31 01:40:45,946 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts1 [2023-03-31 01:40:45,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_sonar_sensor [2023-03-31 01:40:45,946 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts2 [2023-03-31 01:40:45,947 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-03-31 01:40:45,947 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts2 [2023-03-31 01:40:45,947 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-03-31 01:40:45,947 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts1 [2023-03-31 01:40:45,947 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_Background [2023-03-31 01:40:45,947 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2023-03-31 01:40:45,947 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_Background [2023-03-31 01:40:45,947 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_schedule_jobs [2023-03-31 01:40:45,947 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_globals [2023-03-31 01:40:45,947 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2023-03-31 01:40:45,947 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2023-03-31 01:40:45,947 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2023-03-31 01:40:45,948 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_assert_i0 [2023-03-31 01:40:45,948 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_init [2023-03-31 01:40:45,948 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_final [2023-03-31 01:40:45,948 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2023-03-31 01:40:45,948 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 01:40:45,948 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2023-03-31 01:40:45,948 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2023-03-31 01:40:45,948 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_observer_obstacle_flag [2023-03-31 01:40:45,948 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2023-03-31 01:40:45,948 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2023-03-31 01:40:45,948 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_observer_obstacle_flag [2023-03-31 01:40:45,948 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_shared [2023-03-31 01:40:45,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_bt_data_logger [2023-03-31 01:40:45,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_sound_tone [2023-03-31 01:40:45,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_status_monitor [2023-03-31 01:40:45,949 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2023-03-31 01:40:45,950 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2023-03-31 01:40:45,950 INFO L138 BoogieDeclarations]: Found implementation of procedure write_mode_on_lcd [2023-03-31 01:40:45,950 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 01:40:45,950 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 01:40:45,950 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 01:40:45,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 01:40:45,951 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_shared [2023-03-31 01:40:45,951 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_assert_i0 [2023-03-31 01:40:45,951 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2023-03-31 01:40:45,951 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2023-03-31 01:40:45,951 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2023-03-31 01:40:45,952 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-03-31 01:40:45,952 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2023-03-31 01:40:45,952 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 01:40:45,952 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-03-31 01:40:45,952 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cpu_lock [2023-03-31 01:40:45,952 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cpu_unlock [2023-03-31 01:40:45,953 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-03-31 01:40:45,953 INFO L130 BoogieDeclarations]: Found specification of procedure balance_init [2023-03-31 01:40:45,953 INFO L130 BoogieDeclarations]: Found specification of procedure balance_control [2023-03-31 01:40:45,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-03-31 01:40:45,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 01:40:45,953 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 01:40:45,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 01:40:45,954 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2023-03-31 01:40:45,954 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-03-31 01:40:45,954 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2023-03-31 01:40:45,954 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2023-03-31 01:40:45,954 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2023-03-31 01:40:45,954 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2023-03-31 01:40:45,954 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_observer_obstacle_flag [2023-03-31 01:40:45,954 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_observer_obstacle_flag [2023-03-31 01:40:45,954 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2023-03-31 01:40:45,954 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2023-03-31 01:40:45,954 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2023-03-31 01:40:45,954 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2023-03-31 01:40:45,955 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_sound_tone [2023-03-31 01:40:45,955 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_status_monitor [2023-03-31 01:40:45,955 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_read_bt_packet [2023-03-31 01:40:45,955 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_battery_voltage [2023-03-31 01:40:45,955 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2023-03-31 01:40:45,955 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_bt_data_logger [2023-03-31 01:40:45,955 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts1 [2023-03-31 01:40:45,955 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_sonar_sensor [2023-03-31 01:40:45,955 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts2 [2023-03-31 01:40:45,956 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-03-31 01:40:45,956 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts2 [2023-03-31 01:40:45,956 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-03-31 01:40:45,956 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts1 [2023-03-31 01:40:45,957 INFO L130 BoogieDeclarations]: Found specification of procedure write_mode_on_lcd [2023-03-31 01:40:45,957 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_Background [2023-03-31 01:40:45,957 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2023-03-31 01:40:45,957 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_Background [2023-03-31 01:40:45,957 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_schedule_jobs [2023-03-31 01:40:45,957 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_globals [2023-03-31 01:40:45,957 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_init [2023-03-31 01:40:45,957 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_final [2023-03-31 01:40:45,957 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2023-03-31 01:40:45,957 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 01:40:45,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 01:40:45,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 01:40:45,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 01:40:46,433 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 01:40:46,437 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 01:40:55,398 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 01:40:55,422 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 01:40:55,422 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-03-31 01:40:55,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 01:40:55 BoogieIcfgContainer [2023-03-31 01:40:55,427 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 01:40:55,431 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 01:40:55,431 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 01:40:55,434 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 01:40:55,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 01:40:44" (1/3) ... [2023-03-31 01:40:55,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ae92f1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 01:40:55, skipping insertion in model container [2023-03-31 01:40:55,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:40:45" (2/3) ... [2023-03-31 01:40:55,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ae92f1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 01:40:55, skipping insertion in model container [2023-03-31 01:40:55,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 01:40:55" (3/3) ... [2023-03-31 01:40:55,437 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_nxt.2.M4-2.c [2023-03-31 01:40:55,454 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 01:40:55,454 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 01:40:55,555 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 01:40:55,564 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;@7609a4c0, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-03-31 01:40:55,564 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 01:40:55,579 INFO L276 IsEmpty]: Start isEmpty. Operand has 2016 states, 1176 states have (on average 1.1981292517006803) internal successors, (1409), 1183 states have internal predecessors, (1409), 795 states have call successors, (795), 40 states have call predecessors, (795), 40 states have return successors, (795), 792 states have call predecessors, (795), 795 states have call successors, (795) [2023-03-31 01:40:55,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1329 [2023-03-31 01:40:55,659 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:40:55,660 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 01:40:55,661 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:40:55,668 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:40:55,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1520956964, now seen corresponding path program 1 times [2023-03-31 01:40:55,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:40:55,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472444335] [2023-03-31 01:40:55,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:40:55,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms