/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 IntervalDomain -i ../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M4-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 00:19:54,113 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 00:19:54,115 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 00:19:54,155 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 00:19:54,156 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 00:19:54,159 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 00:19:54,164 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 00:19:54,167 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 00:19:54,170 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 00:19:54,175 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 00:19:54,176 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 00:19:54,178 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 00:19:54,179 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 00:19:54,181 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 00:19:54,182 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 00:19:54,183 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 00:19:54,184 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 00:19:54,185 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 00:19:54,187 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 00:19:54,191 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 00:19:54,193 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 00:19:54,194 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 00:19:54,195 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 00:19:54,196 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 00:19:54,204 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 00:19:54,205 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 00:19:54,205 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 00:19:54,207 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 00:19:54,207 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 00:19:54,208 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 00:19:54,208 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 00:19:54,209 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 00:19:54,210 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 00:19:54,211 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 00:19:54,211 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 00:19:54,211 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 00:19:54,212 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 00:19:54,212 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 00:19:54,212 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 00:19:54,213 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 00:19:54,214 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 00:19:54,215 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 [2023-04-01 00:19:54,244 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 00:19:54,245 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 00:19:54,245 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 00:19:54,245 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 00:19:54,246 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 00:19:54,246 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 00:19:54,247 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 00:19:54,247 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 00:19:54,247 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 00:19:54,247 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 00:19:54,248 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 00:19:54,248 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 00:19:54,248 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 00:19:54,248 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 00:19:54,249 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 00:19:54,249 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 00:19:54,249 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 00:19:54,249 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 00:19:54,251 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 00:19:54,251 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 00:19:54,251 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 00:19:54,251 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 00:19:54,251 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 00:19:54,252 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 00:19:54,252 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 00:19:54,252 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 00:19:54,252 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 00:19:54,252 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 00:19:54,253 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 00:19:54,253 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 00:19:54,253 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 00:19:54,253 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 00:19:54,253 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 00:19:54,254 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 00:19:54,254 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 00:19:54,254 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 00:19:54,254 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 00:19:54,254 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 00:19:54,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 00:19:54,254 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 00:19:54,255 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 00:19:54,255 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2023-04-01 00:19:54,480 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 00:19:54,499 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 00:19:54,502 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 00:19:54,503 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 00:19:54,503 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 00:19:54,505 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M4-2.c [2023-04-01 00:19:55,644 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 00:19:56,214 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 00:19:56,215 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M4-2.c [2023-04-01 00:19:56,274 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6306bc28e/7af4c2de11fc42c39c45d957bacc3652/FLAG1989b8f26 [2023-04-01 00:19:56,291 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6306bc28e/7af4c2de11fc42c39c45d957bacc3652 [2023-04-01 00:19:56,295 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 00:19:56,297 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 00:19:56,299 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 00:19:56,299 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 00:19:56,303 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 00:19:56,303 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 12:19:56" (1/1) ... [2023-04-01 00:19:56,304 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42764dc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:19:56, skipping insertion in model container [2023-04-01 00:19:56,305 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 12:19:56" (1/1) ... [2023-04-01 00:19:56,311 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 00:19:56,504 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 00:19:56,791 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M4-2.c[1674,1687] [2023-04-01 00:19:58,019 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 00:19:58,035 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 00:19:58,055 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M4-2.c[1674,1687] [2023-04-01 00:19:58,783 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 00:19:58,805 INFO L208 MainTranslator]: Completed translation [2023-04-01 00:19:58,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:19:58 WrapperNode [2023-04-01 00:19:58,806 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 00:19:58,807 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 00:19:58,807 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 00:19:58,807 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 00:19:58,818 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:19:58" (1/1) ... [2023-04-01 00:19:58,818 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:19:58" (1/1) ... [2023-04-01 00:19:59,311 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:19:58" (1/1) ... [2023-04-01 00:19:59,312 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:19:58" (1/1) ... [2023-04-01 00:20:00,340 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:19:58" (1/1) ... [2023-04-01 00:20:00,413 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:19:58" (1/1) ... [2023-04-01 00:20:00,510 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:19:58" (1/1) ... [2023-04-01 00:20:00,586 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:19:58" (1/1) ... [2023-04-01 00:20:00,813 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 00:20:00,815 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 00:20:00,815 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 00:20:00,815 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 00:20:00,816 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:19:58" (1/1) ... [2023-04-01 00:20:00,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 00:20:00,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 00:20:00,851 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) [2023-04-01 00:20:00,874 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 [2023-04-01 00:20:00,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 00:20:00,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 00:20:00,892 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 00:20:00,892 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-01 00:20:00,893 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-04-01 00:20:00,969 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_init [2023-04-01 00:20:00,969 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_control [2023-04-01 00:20:00,969 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2023-04-01 00:20:00,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2023-04-01 00:20:00,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2023-04-01 00:20:00,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_read_bt_packet [2023-04-01 00:20:00,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_battery_voltage [2023-04-01 00:20:00,970 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts1 [2023-04-01 00:20:00,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_sonar_sensor [2023-04-01 00:20:00,970 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts2 [2023-04-01 00:20:00,970 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_final [2023-04-01 00:20:00,970 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-04-01 00:20:00,970 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts2 [2023-04-01 00:20:00,970 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-04-01 00:20:00,970 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts1 [2023-04-01 00:20:00,970 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_Background [2023-04-01 00:20:00,970 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2023-04-01 00:20:00,970 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_Background [2023-04-01 00:20:00,971 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_schedule_jobs [2023-04-01 00:20:00,971 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_globals [2023-04-01 00:20:00,971 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2023-04-01 00:20:00,971 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2023-04-01 00:20:00,971 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2023-04-01 00:20:00,971 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_check_assumptions [2023-04-01 00:20:00,971 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_init [2023-04-01 00:20:00,971 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_check_assertions [2023-04-01 00:20:00,971 INFO L138 BoogieDeclarations]: Found implementation of procedure __main [2023-04-01 00:20:00,971 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 00:20:00,971 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2023-04-01 00:20:00,972 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2023-04-01 00:20:00,972 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2023-04-01 00:20:00,972 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2023-04-01 00:20:00,972 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_shared [2023-04-01 00:20:00,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_bt_data_logger [2023-04-01 00:20:00,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_sound_tone [2023-04-01 00:20:00,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_status_monitor [2023-04-01 00:20:00,972 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2023-04-01 00:20:00,972 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2023-04-01 00:20:00,972 INFO L138 BoogieDeclarations]: Found implementation of procedure write_mode_on_lcd [2023-04-01 00:20:00,972 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 00:20:00,972 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 00:20:00,973 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 00:20:00,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 00:20:00,973 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_shared [2023-04-01 00:20:00,973 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2023-04-01 00:20:00,973 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2023-04-01 00:20:00,973 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2023-04-01 00:20:00,973 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-01 00:20:00,973 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2023-04-01 00:20:00,973 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 00:20:00,973 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-01 00:20:00,974 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-04-01 00:20:00,974 INFO L130 BoogieDeclarations]: Found specification of procedure balance_init [2023-04-01 00:20:00,974 INFO L130 BoogieDeclarations]: Found specification of procedure balance_control [2023-04-01 00:20:00,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-01 00:20:00,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 00:20:00,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 00:20:00,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 00:20:00,974 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2023-04-01 00:20:00,974 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-04-01 00:20:00,974 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2023-04-01 00:20:00,974 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2023-04-01 00:20:00,974 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2023-04-01 00:20:00,975 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2023-04-01 00:20:00,975 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2023-04-01 00:20:00,975 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2023-04-01 00:20:00,975 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2023-04-01 00:20:00,975 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2023-04-01 00:20:00,975 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_sound_tone [2023-04-01 00:20:00,975 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_status_monitor [2023-04-01 00:20:00,975 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_read_bt_packet [2023-04-01 00:20:00,975 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_battery_voltage [2023-04-01 00:20:00,975 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2023-04-01 00:20:00,975 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_bt_data_logger [2023-04-01 00:20:00,975 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts1 [2023-04-01 00:20:00,976 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_sonar_sensor [2023-04-01 00:20:00,976 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts2 [2023-04-01 00:20:00,976 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_final [2023-04-01 00:20:00,976 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-04-01 00:20:00,976 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts2 [2023-04-01 00:20:00,976 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-04-01 00:20:00,976 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts1 [2023-04-01 00:20:00,976 INFO L130 BoogieDeclarations]: Found specification of procedure write_mode_on_lcd [2023-04-01 00:20:00,976 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_Background [2023-04-01 00:20:00,976 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2023-04-01 00:20:00,976 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_Background [2023-04-01 00:20:00,977 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_schedule_jobs [2023-04-01 00:20:00,977 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_globals [2023-04-01 00:20:00,977 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_check_assumptions [2023-04-01 00:20:00,977 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_init [2023-04-01 00:20:00,977 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_check_assertions [2023-04-01 00:20:00,977 INFO L130 BoogieDeclarations]: Found specification of procedure __main [2023-04-01 00:20:00,977 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 00:20:00,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 00:20:00,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 00:20:00,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 00:20:02,735 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 00:20:02,737 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 00:20:40,965 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 00:20:41,330 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 00:20:41,330 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-01 00:20:41,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 12:20:41 BoogieIcfgContainer [2023-04-01 00:20:41,344 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 00:20:41,347 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 00:20:41,347 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 00:20:41,350 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 00:20:41,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 12:19:56" (1/3) ... [2023-04-01 00:20:41,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@242b44de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 12:20:41, skipping insertion in model container [2023-04-01 00:20:41,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:19:58" (2/3) ... [2023-04-01 00:20:41,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@242b44de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 12:20:41, skipping insertion in model container [2023-04-01 00:20:41,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 12:20:41" (3/3) ... [2023-04-01 00:20:41,352 INFO L112 eAbstractionObserver]: Analyzing ICFG rekcba_nxt.1.M4-2.c [2023-04-01 00:20:41,369 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 00:20:41,369 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 00:20:41,659 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 00:20:41,667 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;@7272891b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 00:20:41,667 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 00:20:41,709 INFO L276 IsEmpty]: Start isEmpty. Operand has 12059 states, 7873 states have (on average 1.3190651594055633) internal successors, (10385), 7988 states have internal predecessors, (10385), 4142 states have call successors, (4142), 39 states have call predecessors, (4142), 39 states have return successors, (4142), 4139 states have call predecessors, (4142), 4142 states have call successors, (4142) [2023-04-01 00:20:41,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3966 [2023-04-01 00:20:41,979 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 00:20:41,982 INFO L195 NwaCegarLoop]: trace histogram [337, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 00:20:41,983 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 00:20:41,988 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 00:20:41,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1187561437, now seen corresponding path program 1 times [2023-04-01 00:20:41,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 00:20:41,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223317453] [2023-04-01 00:20:42,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 00:20:42,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms