/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/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.3.M4.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-03 02:14:58,605 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-03 02:14:58,607 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-03 02:14:58,623 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-03 02:14:58,624 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-03 02:14:58,627 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-03 02:14:58,631 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-03 02:14:58,634 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-03 02:14:58,635 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-03 02:14:58,638 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-03 02:14:58,639 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-03 02:14:58,640 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-03 02:14:58,641 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-03 02:14:58,644 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-03 02:14:58,644 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-03 02:14:58,645 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-03 02:14:58,646 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-03 02:14:58,647 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-03 02:14:58,648 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-03 02:14:58,652 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-03 02:14:58,652 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-03 02:14:58,653 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-03 02:14:58,654 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-03 02:14:58,655 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-03 02:14:58,660 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-03 02:14:58,660 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-03 02:14:58,660 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-03 02:14:58,661 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-03 02:14:58,661 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-03 02:14:58,662 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-03 02:14:58,663 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-03 02:14:58,663 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-03 02:14:58,664 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-03 02:14:58,665 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-03 02:14:58,665 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-03 02:14:58,665 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-03 02:14:58,666 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-03 02:14:58,666 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-03 02:14:58,666 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-03 02:14:58,667 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-03 02:14:58,667 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-03 02:14:58,668 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-03 02:14:58,694 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-03 02:14:58,694 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-03 02:14:58,694 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-03 02:14:58,694 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-03 02:14:58,695 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-03 02:14:58,695 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-03 02:14:58,695 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-03 02:14:58,695 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-03 02:14:58,695 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-03 02:14:58,695 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-03 02:14:58,696 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-03 02:14:58,696 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-03 02:14:58,696 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-03 02:14:58,696 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-03 02:14:58,696 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-03 02:14:58,696 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-03 02:14:58,696 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-03 02:14:58,697 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-03 02:14:58,697 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-03 02:14:58,697 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-03 02:14:58,697 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-03 02:14:58,697 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-03 02:14:58,697 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-03 02:14:58,697 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-03 02:14:58,697 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-03 02:14:58,698 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-03 02:14:58,698 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-03 02:14:58,698 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-03 02:14:58,698 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-03 02:14:58,698 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-03 02:14:58,698 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-03 02:14:58,698 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-03 02:14:58,698 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 02:14:58,699 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-03 02:14:58,699 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-03 02:14:58,699 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-03 02:14:58,699 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-03 02:14:58,699 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-03 02:14:58,699 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-03 02:14:58,699 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-03 02:14:58,699 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-03 02:14:58,699 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-03 02:14:58,876 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-03 02:14:58,897 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-03 02:14:58,898 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-03 02:14:58,899 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-03 02:14:58,899 INFO L275 PluginConnector]: CDTParser initialized [2023-04-03 02:14:58,900 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.3.M4.c [2023-04-03 02:14:59,867 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-03 02:15:00,272 INFO L351 CDTParser]: Found 1 translation units. [2023-04-03 02:15:00,273 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.3.M4.c [2023-04-03 02:15:00,309 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df870665b/8b071ad344174501b07a1fd80d57c468/FLAG2d99335a3 [2023-04-03 02:15:00,323 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df870665b/8b071ad344174501b07a1fd80d57c468 [2023-04-03 02:15:00,325 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-03 02:15:00,326 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-03 02:15:00,329 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-03 02:15:00,329 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-03 02:15:00,331 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-03 02:15:00,332 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 02:15:00" (1/1) ... [2023-04-03 02:15:00,332 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52a3099d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 02:15:00, skipping insertion in model container [2023-04-03 02:15:00,332 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 02:15:00" (1/1) ... [2023-04-03 02:15:00,337 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-03 02:15:00,474 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-03 02:15:00,674 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.3.M4.c[2275,2288] [2023-04-03 02:15:01,552 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 02:15:01,573 INFO L203 MainTranslator]: Completed pre-run [2023-04-03 02:15:01,589 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.3.M4.c[2275,2288] [2023-04-03 02:15:02,161 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 02:15:02,184 INFO L208 MainTranslator]: Completed translation [2023-04-03 02:15:02,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 02:15:02 WrapperNode [2023-04-03 02:15:02,185 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-03 02:15:02,186 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-03 02:15:02,186 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-03 02:15:02,186 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-03 02:15:02,194 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 02:15:02" (1/1) ... [2023-04-03 02:15:02,194 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 02:15:02" (1/1) ... [2023-04-03 02:15:02,585 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 02:15:02" (1/1) ... [2023-04-03 02:15:02,585 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 02:15:02" (1/1) ... [2023-04-03 02:15:03,167 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 02:15:02" (1/1) ... [2023-04-03 02:15:03,230 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 02:15:02" (1/1) ... [2023-04-03 02:15:03,299 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 02:15:02" (1/1) ... [2023-04-03 02:15:03,346 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 02:15:02" (1/1) ... [2023-04-03 02:15:03,536 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-03 02:15:03,537 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-03 02:15:03,537 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-03 02:15:03,537 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-03 02:15:03,538 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 02:15:02" (1/1) ... [2023-04-03 02:15:03,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 02:15:03,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 02:15:03,570 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) [2023-04-03 02:15:03,586 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 [2023-04-03 02:15:03,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-03 02:15:03,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-03 02:15:03,594 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-03 02:15:03,594 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-03 02:15:03,594 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-04-03 02:15:03,594 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_init [2023-04-03 02:15:03,594 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_control [2023-04-03 02:15:03,594 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2023-04-03 02:15:03,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2023-04-03 02:15:03,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2023-04-03 02:15:03,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_read_bt_packet [2023-04-03 02:15:03,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_battery_voltage [2023-04-03 02:15:03,595 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts1 [2023-04-03 02:15:03,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_sonar_sensor [2023-04-03 02:15:03,595 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts2 [2023-04-03 02:15:03,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-04-03 02:15:03,595 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts2 [2023-04-03 02:15:03,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-04-03 02:15:03,595 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts1 [2023-04-03 02:15:03,595 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_Background [2023-04-03 02:15:03,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2023-04-03 02:15:03,595 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_Background [2023-04-03 02:15:03,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_schedule_jobs [2023-04-03 02:15:03,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_globals [2023-04-03 02:15:03,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2023-04-03 02:15:03,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2023-04-03 02:15:03,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2023-04-03 02:15:03,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_assert_i0 [2023-04-03 02:15:03,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_check_assumptions [2023-04-03 02:15:03,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_init [2023-04-03 02:15:03,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_final [2023-04-03 02:15:03,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_check_assertions [2023-04-03 02:15:03,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __main [2023-04-03 02:15:03,596 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-03 02:15:03,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2023-04-03 02:15:03,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2023-04-03 02:15:03,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_observer_obstacle_flag [2023-04-03 02:15:03,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2023-04-03 02:15:03,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2023-04-03 02:15:03,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_observer_obstacle_flag [2023-04-03 02:15:03,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_shared [2023-04-03 02:15:03,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_bt_data_logger [2023-04-03 02:15:03,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_sound_tone [2023-04-03 02:15:03,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_status_monitor [2023-04-03 02:15:03,597 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2023-04-03 02:15:03,597 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2023-04-03 02:15:03,597 INFO L138 BoogieDeclarations]: Found implementation of procedure write_mode_on_lcd [2023-04-03 02:15:03,597 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-03 02:15:03,597 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-03 02:15:03,597 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-03 02:15:03,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-03 02:15:03,597 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_shared [2023-04-03 02:15:03,597 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_assert_i0 [2023-04-03 02:15:03,597 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2023-04-03 02:15:03,597 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2023-04-03 02:15:03,597 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2023-04-03 02:15:03,597 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-03 02:15:03,597 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2023-04-03 02:15:03,597 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-03 02:15:03,597 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-03 02:15:03,598 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cpu_lock [2023-04-03 02:15:03,598 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cpu_unlock [2023-04-03 02:15:03,598 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-04-03 02:15:03,598 INFO L130 BoogieDeclarations]: Found specification of procedure balance_init [2023-04-03 02:15:03,598 INFO L130 BoogieDeclarations]: Found specification of procedure balance_control [2023-04-03 02:15:03,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-03 02:15:03,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-03 02:15:03,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-03 02:15:03,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-03 02:15:03,598 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2023-04-03 02:15:03,598 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-04-03 02:15:03,598 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2023-04-03 02:15:03,598 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2023-04-03 02:15:03,598 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2023-04-03 02:15:03,598 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2023-04-03 02:15:03,598 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_observer_obstacle_flag [2023-04-03 02:15:03,599 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_observer_obstacle_flag [2023-04-03 02:15:03,599 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2023-04-03 02:15:03,599 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2023-04-03 02:15:03,599 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2023-04-03 02:15:03,599 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2023-04-03 02:15:03,599 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_sound_tone [2023-04-03 02:15:03,599 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_status_monitor [2023-04-03 02:15:03,599 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_read_bt_packet [2023-04-03 02:15:03,599 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_battery_voltage [2023-04-03 02:15:03,599 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2023-04-03 02:15:03,599 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_bt_data_logger [2023-04-03 02:15:03,599 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts1 [2023-04-03 02:15:03,599 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_sonar_sensor [2023-04-03 02:15:03,599 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts2 [2023-04-03 02:15:03,599 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-04-03 02:15:03,600 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts2 [2023-04-03 02:15:03,600 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-04-03 02:15:03,600 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts1 [2023-04-03 02:15:03,600 INFO L130 BoogieDeclarations]: Found specification of procedure write_mode_on_lcd [2023-04-03 02:15:03,600 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_Background [2023-04-03 02:15:03,600 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2023-04-03 02:15:03,600 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_Background [2023-04-03 02:15:03,600 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_schedule_jobs [2023-04-03 02:15:03,600 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_globals [2023-04-03 02:15:03,600 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_check_assumptions [2023-04-03 02:15:03,600 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_init [2023-04-03 02:15:03,600 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_final [2023-04-03 02:15:03,600 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_check_assertions [2023-04-03 02:15:03,600 INFO L130 BoogieDeclarations]: Found specification of procedure __main [2023-04-03 02:15:03,600 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-03 02:15:03,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-03 02:15:03,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-03 02:15:03,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-03 02:15:05,010 INFO L236 CfgBuilder]: Building ICFG [2023-04-03 02:15:05,012 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-03 02:16:34,821 INFO L277 CfgBuilder]: Performing block encoding [2023-04-03 02:16:35,389 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-03 02:16:35,389 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-03 02:16:35,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 02:16:35 BoogieIcfgContainer [2023-04-03 02:16:35,402 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-03 02:16:35,404 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-03 02:16:35,404 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-03 02:16:35,407 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-03 02:16:35,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.04 02:15:00" (1/3) ... [2023-04-03 02:16:35,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f1b0086 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 02:16:35, skipping insertion in model container [2023-04-03 02:16:35,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 02:15:02" (2/3) ... [2023-04-03 02:16:35,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f1b0086 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 02:16:35, skipping insertion in model container [2023-04-03 02:16:35,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 02:16:35" (3/3) ... [2023-04-03 02:16:35,417 INFO L112 eAbstractionObserver]: Analyzing ICFG rekcba_nxt.3.M4.c [2023-04-03 02:16:35,431 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-03 02:16:35,431 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-03 02:16:35,651 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-03 02:16:35,655 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=FINITE_AUTOMATA, 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;@21010dd8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-03 02:16:35,655 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-03 02:16:35,689 INFO L276 IsEmpty]: Start isEmpty. Operand has 12523 states, 8109 states have (on average 1.3106424959921075) internal successors, (10628), 8224 states have internal predecessors, (10628), 4367 states have call successors, (4367), 42 states have call predecessors, (4367), 42 states have return successors, (4367), 4364 states have call predecessors, (4367), 4367 states have call successors, (4367) [2023-04-03 02:16:36,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4390 [2023-04-03 02:16:36,061 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 02:16:36,065 INFO L195 NwaCegarLoop]: trace histogram [444, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2023-04-03 02:16:36,066 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 02:16:36,070 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 02:16:36,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1189757303, now seen corresponding path program 1 times [2023-04-03 02:16:36,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 02:16:36,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222825105] [2023-04-03 02:16:36,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 02:16:36,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms