/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 EqDomain -i ../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M1-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 12:29:58,310 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 12:29:58,312 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 12:29:58,339 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 12:29:58,339 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 12:29:58,340 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 12:29:58,341 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 12:29:58,342 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 12:29:58,344 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 12:29:58,344 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 12:29:58,345 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 12:29:58,346 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 12:29:58,346 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 12:29:58,347 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 12:29:58,348 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 12:29:58,349 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 12:29:58,349 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 12:29:58,350 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 12:29:58,351 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 12:29:58,352 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 12:29:58,353 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 12:29:58,354 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 12:29:58,355 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 12:29:58,356 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 12:29:58,359 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 12:29:58,359 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 12:29:58,359 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 12:29:58,360 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 12:29:58,360 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 12:29:58,361 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 12:29:58,361 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 12:29:58,362 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 12:29:58,362 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 12:29:58,363 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 12:29:58,364 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 12:29:58,364 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 12:29:58,364 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 12:29:58,365 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 12:29:58,365 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 12:29:58,365 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 12:29:58,366 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 12:29:58,367 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 12:29:58,389 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 12:29:58,389 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 12:29:58,393 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 12:29:58,394 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 12:29:58,394 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 12:29:58,395 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 12:29:58,395 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 12:29:58,395 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 12:29:58,395 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 12:29:58,395 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 12:29:58,396 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 12:29:58,396 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 12:29:58,396 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 12:29:58,396 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 12:29:58,397 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 12:29:58,397 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 12:29:58,397 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 12:29:58,397 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 12:29:58,397 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 12:29:58,398 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 12:29:58,398 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 12:29:58,398 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 12:29:58,398 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 12:29:58,398 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 12:29:58,398 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 12:29:58,399 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 12:29:58,399 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 12:29:58,399 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 12:29:58,399 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 12:29:58,399 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 12:29:58,399 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 12:29:58,400 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 12:29:58,400 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 12:29:58,400 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 12:29:58,400 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 12:29:58,400 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 12:29:58,400 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 12:29:58,400 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 12:29:58,401 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 12:29:58,401 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 12:29:58,401 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 12:29:58,401 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> EqDomain [2023-04-01 12:29:58,658 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 12:29:58,683 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 12:29:58,685 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 12:29:58,686 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 12:29:58,687 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 12:29:58,688 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M1-1.c [2023-04-01 12:29:59,811 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 12:30:00,117 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 12:30:00,118 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M1-1.c [2023-04-01 12:30:00,138 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b80eb9181/8d5acb5d1be34392beb569319a551176/FLAG86ad66e0a [2023-04-01 12:30:00,150 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b80eb9181/8d5acb5d1be34392beb569319a551176 [2023-04-01 12:30:00,152 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 12:30:00,153 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 12:30:00,156 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 12:30:00,157 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 12:30:00,160 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 12:30:00,160 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 12:30:00" (1/1) ... [2023-04-01 12:30:00,161 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58cdc551 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:30:00, skipping insertion in model container [2023-04-01 12:30:00,161 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 12:30:00" (1/1) ... [2023-04-01 12:30:00,167 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 12:30:00,221 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 12:30:00,374 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.2.M1-1.c[2020,2033] [2023-04-01 12:30:00,690 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 12:30:00,707 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 12:30:00,732 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.2.M1-1.c[2020,2033] [2023-04-01 12:30:00,935 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 12:30:00,960 INFO L208 MainTranslator]: Completed translation [2023-04-01 12:30:00,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:30:00 WrapperNode [2023-04-01 12:30:00,961 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 12:30:00,962 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 12:30:00,962 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 12:30:00,962 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 12:30:00,969 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:30:00" (1/1) ... [2023-04-01 12:30:00,969 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:30:00" (1/1) ... [2023-04-01 12:30:01,019 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:30:00" (1/1) ... [2023-04-01 12:30:01,020 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:30:00" (1/1) ... [2023-04-01 12:30:01,132 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:30:00" (1/1) ... [2023-04-01 12:30:01,152 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:30:00" (1/1) ... [2023-04-01 12:30:01,180 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:30:00" (1/1) ... [2023-04-01 12:30:01,197 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:30:00" (1/1) ... [2023-04-01 12:30:01,216 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 12:30:01,217 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 12:30:01,217 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 12:30:01,217 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 12:30:01,219 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:30:00" (1/1) ... [2023-04-01 12:30:01,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 12:30:01,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 12:30:01,247 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 12:30:01,258 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 12:30:01,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 12:30:01,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 12:30:01,286 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 12:30:01,286 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-01 12:30:01,286 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-04-01 12:30:01,286 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_init [2023-04-01 12:30:01,286 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_control [2023-04-01 12:30:01,287 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2023-04-01 12:30:01,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2023-04-01 12:30:01,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2023-04-01 12:30:01,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_read_bt_packet [2023-04-01 12:30:01,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_battery_voltage [2023-04-01 12:30:01,287 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts1 [2023-04-01 12:30:01,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_sonar_sensor [2023-04-01 12:30:01,287 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts2 [2023-04-01 12:30:01,287 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-04-01 12:30:01,287 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts2 [2023-04-01 12:30:01,287 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-04-01 12:30:01,288 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts1 [2023-04-01 12:30:01,288 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_Background [2023-04-01 12:30:01,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2023-04-01 12:30:01,288 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_Background [2023-04-01 12:30:01,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_schedule_jobs [2023-04-01 12:30:01,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_globals [2023-04-01 12:30:01,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2023-04-01 12:30:01,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2023-04-01 12:30:01,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2023-04-01 12:30:01,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_assert_i0 [2023-04-01 12:30:01,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_check_assumptions [2023-04-01 12:30:01,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_init [2023-04-01 12:30:01,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_final [2023-04-01 12:30:01,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_check_assertions [2023-04-01 12:30:01,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __main [2023-04-01 12:30:01,289 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 12:30:01,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2023-04-01 12:30:01,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2023-04-01 12:30:01,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_observer_obstacle_flag [2023-04-01 12:30:01,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2023-04-01 12:30:01,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2023-04-01 12:30:01,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_observer_obstacle_flag [2023-04-01 12:30:01,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_shared [2023-04-01 12:30:01,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_bt_data_logger [2023-04-01 12:30:01,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_sound_tone [2023-04-01 12:30:01,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_status_monitor [2023-04-01 12:30:01,291 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2023-04-01 12:30:01,291 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2023-04-01 12:30:01,292 INFO L138 BoogieDeclarations]: Found implementation of procedure write_mode_on_lcd [2023-04-01 12:30:01,292 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 12:30:01,292 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 12:30:01,292 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 12:30:01,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 12:30:01,292 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_shared [2023-04-01 12:30:01,292 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_assert_i0 [2023-04-01 12:30:01,292 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2023-04-01 12:30:01,293 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2023-04-01 12:30:01,293 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2023-04-01 12:30:01,293 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-01 12:30:01,293 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2023-04-01 12:30:01,293 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 12:30:01,294 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-01 12:30:01,294 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cpu_lock [2023-04-01 12:30:01,294 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cpu_unlock [2023-04-01 12:30:01,294 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-04-01 12:30:01,294 INFO L130 BoogieDeclarations]: Found specification of procedure balance_init [2023-04-01 12:30:01,294 INFO L130 BoogieDeclarations]: Found specification of procedure balance_control [2023-04-01 12:30:01,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-01 12:30:01,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 12:30:01,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 12:30:01,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 12:30:01,295 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2023-04-01 12:30:01,295 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-04-01 12:30:01,295 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2023-04-01 12:30:01,295 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2023-04-01 12:30:01,295 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2023-04-01 12:30:01,295 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2023-04-01 12:30:01,295 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_observer_obstacle_flag [2023-04-01 12:30:01,295 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_observer_obstacle_flag [2023-04-01 12:30:01,295 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2023-04-01 12:30:01,296 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2023-04-01 12:30:01,296 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2023-04-01 12:30:01,296 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2023-04-01 12:30:01,296 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_sound_tone [2023-04-01 12:30:01,296 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_status_monitor [2023-04-01 12:30:01,297 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_read_bt_packet [2023-04-01 12:30:01,297 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_battery_voltage [2023-04-01 12:30:01,297 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2023-04-01 12:30:01,297 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_bt_data_logger [2023-04-01 12:30:01,297 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts1 [2023-04-01 12:30:01,298 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_sonar_sensor [2023-04-01 12:30:01,298 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts2 [2023-04-01 12:30:01,298 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-04-01 12:30:01,298 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts2 [2023-04-01 12:30:01,298 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-04-01 12:30:01,298 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts1 [2023-04-01 12:30:01,298 INFO L130 BoogieDeclarations]: Found specification of procedure write_mode_on_lcd [2023-04-01 12:30:01,298 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_Background [2023-04-01 12:30:01,298 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2023-04-01 12:30:01,298 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_Background [2023-04-01 12:30:01,299 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_schedule_jobs [2023-04-01 12:30:01,299 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_globals [2023-04-01 12:30:01,299 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_check_assumptions [2023-04-01 12:30:01,299 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_init [2023-04-01 12:30:01,299 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_final [2023-04-01 12:30:01,299 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_check_assertions [2023-04-01 12:30:01,299 INFO L130 BoogieDeclarations]: Found specification of procedure __main [2023-04-01 12:30:01,299 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 12:30:01,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 12:30:01,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 12:30:01,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 12:30:01,756 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 12:30:01,759 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 12:30:08,983 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 12:30:09,138 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 12:30:09,138 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-01 12:30:09,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 12:30:09 BoogieIcfgContainer [2023-04-01 12:30:09,143 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 12:30:09,147 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 12:30:09,147 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 12:30:09,150 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 12:30:09,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 12:30:00" (1/3) ... [2023-04-01 12:30:09,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@767a359b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 12:30:09, skipping insertion in model container [2023-04-01 12:30:09,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:30:00" (2/3) ... [2023-04-01 12:30:09,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@767a359b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 12:30:09, skipping insertion in model container [2023-04-01 12:30:09,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 12:30:09" (3/3) ... [2023-04-01 12:30:09,161 INFO L112 eAbstractionObserver]: Analyzing ICFG rekcba_nxt.2.M1-1.c [2023-04-01 12:30:09,176 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 12:30:09,176 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 12:30:09,260 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 12:30:09,267 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;@763b823f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 12:30:09,267 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 12:30:09,279 INFO L276 IsEmpty]: Start isEmpty. Operand has 1324 states, 798 states have (on average 1.2656641604010026) internal successors, (1010), 833 states have internal predecessors, (1010), 479 states have call successors, (479), 42 states have call predecessors, (479), 42 states have return successors, (479), 476 states have call predecessors, (479), 479 states have call successors, (479) [2023-04-01 12:30:09,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 676 [2023-04-01 12:30:09,333 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 12:30:09,334 INFO L195 NwaCegarLoop]: trace histogram [111, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 12:30:09,335 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 12:30:09,339 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 12:30:09,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1466012345, now seen corresponding path program 1 times [2023-04-01 12:30:09,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 12:30:09,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976429223] [2023-04-01 12:30:09,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 12:30:09,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms