/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/rekh_nxt.1.M4-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-03 02:18:38,607 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-03 02:18:38,610 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-03 02:18:38,649 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-03 02:18:38,649 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-03 02:18:38,650 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-03 02:18:38,651 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-03 02:18:38,657 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-03 02:18:38,659 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-03 02:18:38,665 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-03 02:18:38,666 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-03 02:18:38,666 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-03 02:18:38,667 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-03 02:18:38,667 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-03 02:18:38,668 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-03 02:18:38,669 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-03 02:18:38,669 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-03 02:18:38,670 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-03 02:18:38,671 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-03 02:18:38,673 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-03 02:18:38,674 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-03 02:18:38,675 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-03 02:18:38,675 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-03 02:18:38,676 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-03 02:18:38,679 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-03 02:18:38,679 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-03 02:18:38,680 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-03 02:18:38,680 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-03 02:18:38,681 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-03 02:18:38,681 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-03 02:18:38,682 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-03 02:18:38,682 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-03 02:18:38,683 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-03 02:18:38,683 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-03 02:18:38,684 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-03 02:18:38,685 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-03 02:18:38,685 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-03 02:18:38,685 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-03 02:18:38,686 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-03 02:18:38,686 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-03 02:18:38,687 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-03 02:18:38,690 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 02:18:38,721 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-03 02:18:38,722 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-03 02:18:38,722 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-03 02:18:38,722 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-03 02:18:38,723 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-03 02:18:38,723 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-03 02:18:38,723 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-03 02:18:38,723 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-03 02:18:38,723 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-03 02:18:38,724 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-03 02:18:38,724 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-03 02:18:38,724 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-03 02:18:38,724 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-03 02:18:38,724 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-03 02:18:38,724 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-03 02:18:38,724 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-03 02:18:38,724 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-03 02:18:38,725 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-03 02:18:38,725 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-03 02:18:38,725 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-03 02:18:38,725 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-03 02:18:38,726 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-03 02:18:38,726 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-03 02:18:38,726 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-03 02:18:38,726 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-03 02:18:38,726 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-03 02:18:38,726 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-03 02:18:38,726 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-03 02:18:38,726 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-03 02:18:38,727 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-03 02:18:38,727 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-03 02:18:38,727 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-03 02:18:38,727 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 02:18:38,727 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-03 02:18:38,727 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-03 02:18:38,727 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-03 02:18:38,727 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-03 02:18:38,728 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-03 02:18:38,728 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-03 02:18:38,728 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-03 02:18:38,728 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-03 02:18:38,728 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-03 02:18:38,969 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-03 02:18:38,997 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-03 02:18:38,999 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-03 02:18:39,001 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-03 02:18:39,002 INFO L275 PluginConnector]: CDTParser initialized [2023-04-03 02:18:39,003 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_nxt.1.M4-1.c [2023-04-03 02:18:40,278 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-03 02:18:40,638 INFO L351 CDTParser]: Found 1 translation units. [2023-04-03 02:18:40,639 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_nxt.1.M4-1.c [2023-04-03 02:18:40,654 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9ad3367a/c495c67d3526435f82bdebc58178258f/FLAG71a2d4eda [2023-04-03 02:18:40,668 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9ad3367a/c495c67d3526435f82bdebc58178258f [2023-04-03 02:18:40,670 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-03 02:18:40,672 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-03 02:18:40,673 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-03 02:18:40,673 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-03 02:18:40,677 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-03 02:18:40,677 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 02:18:40" (1/1) ... [2023-04-03 02:18:40,678 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41fa842e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 02:18:40, skipping insertion in model container [2023-04-03 02:18:40,679 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 02:18:40" (1/1) ... [2023-04-03 02:18:40,685 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-03 02:18:40,729 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-03 02:18:40,857 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.1.M4-1.c[1510,1523] [2023-04-03 02:18:41,183 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 02:18:41,213 INFO L203 MainTranslator]: Completed pre-run [2023-04-03 02:18:41,226 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.1.M4-1.c[1510,1523] [2023-04-03 02:18:41,473 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 02:18:41,494 INFO L208 MainTranslator]: Completed translation [2023-04-03 02:18:41,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 02:18:41 WrapperNode [2023-04-03 02:18:41,495 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-03 02:18:41,496 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-03 02:18:41,496 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-03 02:18:41,497 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-03 02:18:41,508 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 02:18:41" (1/1) ... [2023-04-03 02:18:41,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 02:18:41" (1/1) ... [2023-04-03 02:18:41,579 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 02:18:41" (1/1) ... [2023-04-03 02:18:41,580 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 02:18:41" (1/1) ... [2023-04-03 02:18:41,672 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 02:18:41" (1/1) ... [2023-04-03 02:18:41,683 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 02:18:41" (1/1) ... [2023-04-03 02:18:41,701 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 02:18:41" (1/1) ... [2023-04-03 02:18:41,718 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 02:18:41" (1/1) ... [2023-04-03 02:18:41,740 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-03 02:18:41,747 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-03 02:18:41,747 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-03 02:18:41,747 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-03 02:18:41,749 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 02:18:41" (1/1) ... [2023-04-03 02:18:41,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 02:18:41,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 02:18:41,792 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 02:18:41,813 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 02:18:41,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-03 02:18:41,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-03 02:18:41,830 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-03 02:18:41,830 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-03 02:18:41,830 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-04-03 02:18:41,830 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_init [2023-04-03 02:18:41,830 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_control [2023-04-03 02:18:41,830 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2023-04-03 02:18:41,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2023-04-03 02:18:41,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2023-04-03 02:18:41,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_read_bt_packet [2023-04-03 02:18:41,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_battery_voltage [2023-04-03 02:18:41,831 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts1 [2023-04-03 02:18:41,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_sonar_sensor [2023-04-03 02:18:41,831 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts2 [2023-04-03 02:18:41,831 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_final [2023-04-03 02:18:41,831 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-04-03 02:18:41,831 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts2 [2023-04-03 02:18:41,831 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-04-03 02:18:41,831 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts1 [2023-04-03 02:18:41,832 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_Background [2023-04-03 02:18:41,832 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2023-04-03 02:18:41,832 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_Background [2023-04-03 02:18:41,832 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_schedule_jobs [2023-04-03 02:18:41,832 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_globals [2023-04-03 02:18:41,832 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2023-04-03 02:18:41,832 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2023-04-03 02:18:41,832 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2023-04-03 02:18:41,832 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_init [2023-04-03 02:18:41,832 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2023-04-03 02:18:41,832 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-03 02:18:41,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2023-04-03 02:18:41,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2023-04-03 02:18:41,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2023-04-03 02:18:41,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2023-04-03 02:18:41,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_shared [2023-04-03 02:18:41,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_bt_data_logger [2023-04-03 02:18:41,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_sound_tone [2023-04-03 02:18:41,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_status_monitor [2023-04-03 02:18:41,834 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2023-04-03 02:18:41,834 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2023-04-03 02:18:41,834 INFO L138 BoogieDeclarations]: Found implementation of procedure write_mode_on_lcd [2023-04-03 02:18:41,834 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-03 02:18:41,835 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-03 02:18:41,835 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-03 02:18:41,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-03 02:18:41,836 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_shared [2023-04-03 02:18:41,836 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2023-04-03 02:18:41,836 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2023-04-03 02:18:41,836 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2023-04-03 02:18:41,836 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-03 02:18:41,836 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2023-04-03 02:18:41,836 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-03 02:18:41,837 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-03 02:18:41,837 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-04-03 02:18:41,837 INFO L130 BoogieDeclarations]: Found specification of procedure balance_init [2023-04-03 02:18:41,837 INFO L130 BoogieDeclarations]: Found specification of procedure balance_control [2023-04-03 02:18:41,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-03 02:18:41,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-03 02:18:41,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-03 02:18:41,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-03 02:18:41,838 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2023-04-03 02:18:41,838 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-04-03 02:18:41,838 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2023-04-03 02:18:41,838 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2023-04-03 02:18:41,838 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2023-04-03 02:18:41,838 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2023-04-03 02:18:41,838 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2023-04-03 02:18:41,838 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2023-04-03 02:18:41,838 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2023-04-03 02:18:41,838 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2023-04-03 02:18:41,839 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_sound_tone [2023-04-03 02:18:41,839 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_status_monitor [2023-04-03 02:18:41,839 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_read_bt_packet [2023-04-03 02:18:41,839 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_battery_voltage [2023-04-03 02:18:41,839 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2023-04-03 02:18:41,839 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_bt_data_logger [2023-04-03 02:18:41,839 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts1 [2023-04-03 02:18:41,840 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_sonar_sensor [2023-04-03 02:18:41,840 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts2 [2023-04-03 02:18:41,840 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_final [2023-04-03 02:18:41,840 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-04-03 02:18:41,841 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts2 [2023-04-03 02:18:41,841 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-04-03 02:18:41,841 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts1 [2023-04-03 02:18:41,842 INFO L130 BoogieDeclarations]: Found specification of procedure write_mode_on_lcd [2023-04-03 02:18:41,842 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_Background [2023-04-03 02:18:41,842 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2023-04-03 02:18:41,842 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_Background [2023-04-03 02:18:41,842 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_schedule_jobs [2023-04-03 02:18:41,842 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_globals [2023-04-03 02:18:41,842 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_init [2023-04-03 02:18:41,842 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2023-04-03 02:18:41,842 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-03 02:18:41,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-03 02:18:41,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-03 02:18:41,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-03 02:18:42,256 INFO L236 CfgBuilder]: Building ICFG [2023-04-03 02:18:42,259 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-03 02:18:52,248 INFO L277 CfgBuilder]: Performing block encoding [2023-04-03 02:18:52,330 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-03 02:18:52,331 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-03 02:18:52,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 02:18:52 BoogieIcfgContainer [2023-04-03 02:18:52,337 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-03 02:18:52,341 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-03 02:18:52,341 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-03 02:18:52,345 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-03 02:18:52,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.04 02:18:40" (1/3) ... [2023-04-03 02:18:52,346 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@274d8ef3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 02:18:52, skipping insertion in model container [2023-04-03 02:18:52,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 02:18:41" (2/3) ... [2023-04-03 02:18:52,346 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@274d8ef3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 02:18:52, skipping insertion in model container [2023-04-03 02:18:52,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 02:18:52" (3/3) ... [2023-04-03 02:18:52,348 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_nxt.1.M4-1.c [2023-04-03 02:18:52,366 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-03 02:18:52,366 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-03 02:18:52,473 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-03 02:18:52,482 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;@4e1e0489, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-03 02:18:52,482 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-03 02:18:52,495 INFO L276 IsEmpty]: Start isEmpty. Operand has 1641 states, 965 states have (on average 1.2269430051813472) internal successors, (1184), 971 states have internal predecessors, (1184), 634 states have call successors, (634), 37 states have call predecessors, (634), 37 states have return successors, (634), 631 states have call predecessors, (634), 634 states have call successors, (634) [2023-04-03 02:18:52,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6597 [2023-04-03 02:18:52,926 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 02:18:52,929 INFO L195 NwaCegarLoop]: trace histogram [964, 108, 108, 108, 108, 108, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 02:18:52,929 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 02:18:52,935 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 02:18:52,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1245597921, now seen corresponding path program 1 times [2023-04-03 02:18:52,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 02:18:52,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076822133] [2023-04-03 02:18:52,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 02:18:52,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms