/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/rekh_nxt.2.M4-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 00:22:06,223 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 00:22:06,226 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 00:22:06,267 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 00:22:06,267 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 00:22:06,270 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 00:22:06,271 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 00:22:06,273 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 00:22:06,274 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 00:22:06,280 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 00:22:06,282 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 00:22:06,284 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 00:22:06,285 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 00:22:06,288 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 00:22:06,288 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 00:22:06,290 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 00:22:06,291 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 00:22:06,292 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 00:22:06,294 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 00:22:06,299 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 00:22:06,300 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 00:22:06,301 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 00:22:06,302 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 00:22:06,303 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 00:22:06,311 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 00:22:06,312 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 00:22:06,312 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 00:22:06,314 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 00:22:06,314 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 00:22:06,315 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 00:22:06,315 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 00:22:06,315 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 00:22:06,317 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 00:22:06,317 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 00:22:06,318 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 00:22:06,318 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 00:22:06,319 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 00:22:06,319 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 00:22:06,319 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 00:22:06,320 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 00:22:06,320 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 00:22:06,322 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 00:22:06,346 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 00:22:06,346 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 00:22:06,347 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 00:22:06,347 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 00:22:06,348 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 00:22:06,348 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 00:22:06,348 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 00:22:06,348 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 00:22:06,348 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 00:22:06,348 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 00:22:06,349 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 00:22:06,349 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 00:22:06,349 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 00:22:06,350 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 00:22:06,350 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 00:22:06,350 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 00:22:06,350 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 00:22:06,350 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 00:22:06,351 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 00:22:06,351 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 00:22:06,351 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 00:22:06,351 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 00:22:06,351 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 00:22:06,351 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 00:22:06,351 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 00:22:06,351 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 00:22:06,352 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 00:22:06,352 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 00:22:06,352 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 00:22:06,352 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 00:22:06,352 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 00:22:06,352 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 00:22:06,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 00:22:06,353 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 00:22:06,353 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 00:22:06,353 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 00:22:06,353 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 00:22:06,353 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 00:22:06,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 00:22:06,353 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 00:22:06,354 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 00:22:06,354 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2023-04-01 00:22:06,615 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 00:22:06,644 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 00:22:06,647 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 00:22:06,648 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 00:22:06,649 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 00:22:06,650 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_nxt.2.M4-1.c [2023-04-01 00:22:07,759 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 00:22:08,112 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 00:22:08,113 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_nxt.2.M4-1.c [2023-04-01 00:22:08,137 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31f71208d/cdc682c3ec39432b9d3e2284369097cf/FLAG93bb1a0d3 [2023-04-01 00:22:08,154 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31f71208d/cdc682c3ec39432b9d3e2284369097cf [2023-04-01 00:22:08,156 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 00:22:08,159 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 00:22:08,161 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 00:22:08,161 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 00:22:08,164 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 00:22:08,164 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 12:22:08" (1/1) ... [2023-04-01 00:22:08,165 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2daf5b9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:22:08, skipping insertion in model container [2023-04-01 00:22:08,165 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 12:22:08" (1/1) ... [2023-04-01 00:22:08,171 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 00:22:08,226 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 00:22:08,358 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_nxt.2.M4-1.c[1682,1695] [2023-04-01 00:22:08,685 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 00:22:08,711 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 00:22:08,726 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_nxt.2.M4-1.c[1682,1695] [2023-04-01 00:22:09,007 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 00:22:09,028 INFO L208 MainTranslator]: Completed translation [2023-04-01 00:22:09,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:22:09 WrapperNode [2023-04-01 00:22:09,029 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 00:22:09,030 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 00:22:09,030 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 00:22:09,030 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 00:22:09,041 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:22:09" (1/1) ... [2023-04-01 00:22:09,041 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:22:09" (1/1) ... [2023-04-01 00:22:09,118 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:22:09" (1/1) ... [2023-04-01 00:22:09,118 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:22:09" (1/1) ... [2023-04-01 00:22:09,256 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:22:09" (1/1) ... [2023-04-01 00:22:09,266 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:22:09" (1/1) ... [2023-04-01 00:22:09,294 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:22:09" (1/1) ... [2023-04-01 00:22:09,306 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:22:09" (1/1) ... [2023-04-01 00:22:09,340 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 00:22:09,342 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 00:22:09,342 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 00:22:09,342 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 00:22:09,342 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:22:09" (1/1) ... [2023-04-01 00:22:09,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 00:22:09,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 00:22:09,372 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 00:22:09,400 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 00:22:09,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 00:22:09,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 00:22:09,418 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 00:22:09,420 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-01 00:22:09,420 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-04-01 00:22:09,420 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_init [2023-04-01 00:22:09,420 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_control [2023-04-01 00:22:09,420 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2023-04-01 00:22:09,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2023-04-01 00:22:09,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2023-04-01 00:22:09,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_read_bt_packet [2023-04-01 00:22:09,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_battery_voltage [2023-04-01 00:22:09,421 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts1 [2023-04-01 00:22:09,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_sonar_sensor [2023-04-01 00:22:09,421 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts2 [2023-04-01 00:22:09,421 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-04-01 00:22:09,421 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts2 [2023-04-01 00:22:09,421 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-04-01 00:22:09,421 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts1 [2023-04-01 00:22:09,421 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_Background [2023-04-01 00:22:09,421 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2023-04-01 00:22:09,421 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_Background [2023-04-01 00:22:09,421 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_schedule_jobs [2023-04-01 00:22:09,421 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_globals [2023-04-01 00:22:09,422 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2023-04-01 00:22:09,422 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2023-04-01 00:22:09,422 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2023-04-01 00:22:09,422 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_assert_i0 [2023-04-01 00:22:09,422 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_init [2023-04-01 00:22:09,422 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_final [2023-04-01 00:22:09,422 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2023-04-01 00:22:09,422 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 00:22:09,422 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2023-04-01 00:22:09,422 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2023-04-01 00:22:09,422 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2023-04-01 00:22:09,422 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2023-04-01 00:22:09,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_shared [2023-04-01 00:22:09,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_bt_data_logger [2023-04-01 00:22:09,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_sound_tone [2023-04-01 00:22:09,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_status_monitor [2023-04-01 00:22:09,424 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2023-04-01 00:22:09,424 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2023-04-01 00:22:09,424 INFO L138 BoogieDeclarations]: Found implementation of procedure write_mode_on_lcd [2023-04-01 00:22:09,424 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 00:22:09,424 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 00:22:09,425 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 00:22:09,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 00:22:09,425 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_shared [2023-04-01 00:22:09,425 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_assert_i0 [2023-04-01 00:22:09,425 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2023-04-01 00:22:09,425 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2023-04-01 00:22:09,425 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2023-04-01 00:22:09,426 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-01 00:22:09,426 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2023-04-01 00:22:09,426 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 00:22:09,426 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-01 00:22:09,426 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-04-01 00:22:09,426 INFO L130 BoogieDeclarations]: Found specification of procedure balance_init [2023-04-01 00:22:09,427 INFO L130 BoogieDeclarations]: Found specification of procedure balance_control [2023-04-01 00:22:09,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-01 00:22:09,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 00:22:09,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 00:22:09,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 00:22:09,428 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2023-04-01 00:22:09,428 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-04-01 00:22:09,428 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2023-04-01 00:22:09,428 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2023-04-01 00:22:09,428 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2023-04-01 00:22:09,428 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2023-04-01 00:22:09,428 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2023-04-01 00:22:09,428 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2023-04-01 00:22:09,429 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2023-04-01 00:22:09,429 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2023-04-01 00:22:09,429 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_sound_tone [2023-04-01 00:22:09,429 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_status_monitor [2023-04-01 00:22:09,429 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_read_bt_packet [2023-04-01 00:22:09,429 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_battery_voltage [2023-04-01 00:22:09,429 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2023-04-01 00:22:09,429 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_bt_data_logger [2023-04-01 00:22:09,430 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts1 [2023-04-01 00:22:09,430 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_sonar_sensor [2023-04-01 00:22:09,430 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts2 [2023-04-01 00:22:09,431 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-04-01 00:22:09,431 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts2 [2023-04-01 00:22:09,431 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-04-01 00:22:09,431 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts1 [2023-04-01 00:22:09,431 INFO L130 BoogieDeclarations]: Found specification of procedure write_mode_on_lcd [2023-04-01 00:22:09,432 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_Background [2023-04-01 00:22:09,432 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2023-04-01 00:22:09,432 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_Background [2023-04-01 00:22:09,432 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_schedule_jobs [2023-04-01 00:22:09,432 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_globals [2023-04-01 00:22:09,432 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_init [2023-04-01 00:22:09,432 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_final [2023-04-01 00:22:09,432 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2023-04-01 00:22:09,432 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 00:22:09,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 00:22:09,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 00:22:09,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 00:22:09,899 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 00:22:09,902 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 00:22:18,523 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 00:22:18,648 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 00:22:18,649 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-01 00:22:18,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 12:22:18 BoogieIcfgContainer [2023-04-01 00:22:18,656 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 00:22:18,659 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 00:22:18,659 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 00:22:18,663 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 00:22:18,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 12:22:08" (1/3) ... [2023-04-01 00:22:18,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c952066 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 12:22:18, skipping insertion in model container [2023-04-01 00:22:18,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:22:09" (2/3) ... [2023-04-01 00:22:18,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c952066 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 12:22:18, skipping insertion in model container [2023-04-01 00:22:18,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 12:22:18" (3/3) ... [2023-04-01 00:22:18,666 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_nxt.2.M4-1.c [2023-04-01 00:22:18,683 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 00:22:18,684 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 00:22:18,794 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 00:22:18,802 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;@7ef62df, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 00:22:18,802 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 00:22:18,817 INFO L276 IsEmpty]: Start isEmpty. Operand has 1693 states, 989 states have (on average 1.2214357937310414) internal successors, (1208), 995 states have internal predecessors, (1208), 661 states have call successors, (661), 38 states have call predecessors, (661), 38 states have return successors, (661), 658 states have call predecessors, (661), 661 states have call successors, (661) [2023-04-01 00:22:18,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 904 [2023-04-01 00:22:18,883 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 00:22:18,885 INFO L195 NwaCegarLoop]: trace histogram [209, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 00:22:18,890 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 00:22:18,895 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 00:22:18,896 INFO L85 PathProgramCache]: Analyzing trace with hash -699593838, now seen corresponding path program 1 times [2023-04-01 00:22:18,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 00:22:18,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840981513] [2023-04-01 00:22:18,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 00:22:18,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms