/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.1.M4-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 00:21:47,151 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 00:21:47,153 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 00:21:47,193 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 00:21:47,194 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 00:21:47,197 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 00:21:47,198 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 00:21:47,199 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 00:21:47,200 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 00:21:47,201 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 00:21:47,202 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 00:21:47,203 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 00:21:47,203 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 00:21:47,204 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 00:21:47,205 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 00:21:47,205 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 00:21:47,206 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 00:21:47,207 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 00:21:47,208 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 00:21:47,210 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 00:21:47,211 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 00:21:47,214 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 00:21:47,217 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 00:21:47,218 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 00:21:47,221 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 00:21:47,221 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 00:21:47,221 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 00:21:47,222 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 00:21:47,222 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 00:21:47,223 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 00:21:47,223 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 00:21:47,225 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 00:21:47,226 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 00:21:47,226 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 00:21:47,227 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 00:21:47,227 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 00:21:47,228 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 00:21:47,228 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 00:21:47,228 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 00:21:47,229 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 00:21:47,229 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 00:21:47,234 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 00:21:47,260 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 00:21:47,260 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 00:21:47,261 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 00:21:47,261 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 00:21:47,262 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 00:21:47,262 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 00:21:47,262 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 00:21:47,262 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 00:21:47,262 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 00:21:47,263 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 00:21:47,263 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 00:21:47,263 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 00:21:47,264 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 00:21:47,264 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 00:21:47,264 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 00:21:47,264 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 00:21:47,264 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 00:21:47,264 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 00:21:47,265 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 00:21:47,265 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 00:21:47,265 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 00:21:47,266 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 00:21:47,266 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 00:21:47,266 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 00:21:47,266 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 00:21:47,266 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 00:21:47,266 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 00:21:47,266 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 00:21:47,266 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 00:21:47,267 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 00:21:47,267 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 00:21:47,267 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 00:21:47,267 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 00:21:47,267 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 00:21:47,267 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 00:21:47,267 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 00:21:47,268 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 00:21:47,268 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 00:21:47,268 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 00:21:47,268 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 00:21:47,268 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 00:21:47,268 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2023-04-01 00:21:47,504 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 00:21:47,525 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 00:21:47,527 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 00:21:47,528 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 00:21:47,529 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 00:21:47,531 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_nxt.1.M4-2.c [2023-04-01 00:21:48,684 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 00:21:48,998 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 00:21:48,998 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_nxt.1.M4-2.c [2023-04-01 00:21:49,029 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e51841c97/bb95a6fe78f647e9952921b73cf1ae2d/FLAG7e0a2f2dd [2023-04-01 00:21:49,046 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e51841c97/bb95a6fe78f647e9952921b73cf1ae2d [2023-04-01 00:21:49,049 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 00:21:49,051 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 00:21:49,054 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 00:21:49,054 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 00:21:49,057 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 00:21:49,058 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 12:21:49" (1/1) ... [2023-04-01 00:21:49,060 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cdf9de8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:21:49, skipping insertion in model container [2023-04-01 00:21:49,060 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 12:21:49" (1/1) ... [2023-04-01 00:21:49,066 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 00:21:49,122 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 00:21:49,307 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_nxt.1.M4-2.c[1509,1522] [2023-04-01 00:21:49,645 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 00:21:49,659 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 00:21:49,671 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_nxt.1.M4-2.c[1509,1522] [2023-04-01 00:21:49,861 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 00:21:49,881 INFO L208 MainTranslator]: Completed translation [2023-04-01 00:21:49,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:21:49 WrapperNode [2023-04-01 00:21:49,881 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 00:21:49,883 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 00:21:49,883 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 00:21:49,883 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 00:21:49,893 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:21:49" (1/1) ... [2023-04-01 00:21:49,894 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:21:49" (1/1) ... [2023-04-01 00:21:49,950 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:21:49" (1/1) ... [2023-04-01 00:21:49,951 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:21:49" (1/1) ... [2023-04-01 00:21:50,067 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:21:49" (1/1) ... [2023-04-01 00:21:50,146 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:21:49" (1/1) ... [2023-04-01 00:21:50,181 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:21:49" (1/1) ... [2023-04-01 00:21:50,196 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:21:49" (1/1) ... [2023-04-01 00:21:50,226 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 00:21:50,228 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 00:21:50,228 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 00:21:50,228 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 00:21:50,230 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:21:49" (1/1) ... [2023-04-01 00:21:50,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 00:21:50,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 00:21:50,263 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 00:21:50,272 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 00:21:50,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 00:21:50,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 00:21:50,305 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 00:21:50,305 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-01 00:21:50,305 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-04-01 00:21:50,305 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_init [2023-04-01 00:21:50,305 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_control [2023-04-01 00:21:50,305 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2023-04-01 00:21:50,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2023-04-01 00:21:50,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2023-04-01 00:21:50,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_read_bt_packet [2023-04-01 00:21:50,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_battery_voltage [2023-04-01 00:21:50,305 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts1 [2023-04-01 00:21:50,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_sonar_sensor [2023-04-01 00:21:50,306 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts2 [2023-04-01 00:21:50,306 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_final [2023-04-01 00:21:50,306 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-04-01 00:21:50,306 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts2 [2023-04-01 00:21:50,306 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-04-01 00:21:50,306 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts1 [2023-04-01 00:21:50,306 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_Background [2023-04-01 00:21:50,306 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2023-04-01 00:21:50,307 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_Background [2023-04-01 00:21:50,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_schedule_jobs [2023-04-01 00:21:50,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_globals [2023-04-01 00:21:50,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2023-04-01 00:21:50,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2023-04-01 00:21:50,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2023-04-01 00:21:50,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_init [2023-04-01 00:21:50,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2023-04-01 00:21:50,307 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 00:21:50,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2023-04-01 00:21:50,308 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2023-04-01 00:21:50,308 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2023-04-01 00:21:50,308 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2023-04-01 00:21:50,308 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_shared [2023-04-01 00:21:50,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_bt_data_logger [2023-04-01 00:21:50,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_sound_tone [2023-04-01 00:21:50,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_status_monitor [2023-04-01 00:21:50,309 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2023-04-01 00:21:50,309 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2023-04-01 00:21:50,309 INFO L138 BoogieDeclarations]: Found implementation of procedure write_mode_on_lcd [2023-04-01 00:21:50,309 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 00:21:50,309 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 00:21:50,310 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 00:21:50,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 00:21:50,310 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_shared [2023-04-01 00:21:50,310 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2023-04-01 00:21:50,311 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2023-04-01 00:21:50,311 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2023-04-01 00:21:50,311 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-01 00:21:50,311 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2023-04-01 00:21:50,311 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 00:21:50,311 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-01 00:21:50,311 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-04-01 00:21:50,312 INFO L130 BoogieDeclarations]: Found specification of procedure balance_init [2023-04-01 00:21:50,312 INFO L130 BoogieDeclarations]: Found specification of procedure balance_control [2023-04-01 00:21:50,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-01 00:21:50,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 00:21:50,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 00:21:50,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 00:21:50,312 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2023-04-01 00:21:50,312 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-04-01 00:21:50,312 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2023-04-01 00:21:50,312 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2023-04-01 00:21:50,312 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2023-04-01 00:21:50,312 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2023-04-01 00:21:50,312 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2023-04-01 00:21:50,313 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2023-04-01 00:21:50,313 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2023-04-01 00:21:50,313 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2023-04-01 00:21:50,313 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_sound_tone [2023-04-01 00:21:50,313 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_status_monitor [2023-04-01 00:21:50,313 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_read_bt_packet [2023-04-01 00:21:50,313 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_battery_voltage [2023-04-01 00:21:50,313 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2023-04-01 00:21:50,313 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_bt_data_logger [2023-04-01 00:21:50,313 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts1 [2023-04-01 00:21:50,313 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_sonar_sensor [2023-04-01 00:21:50,314 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts2 [2023-04-01 00:21:50,314 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_final [2023-04-01 00:21:50,314 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-04-01 00:21:50,314 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts2 [2023-04-01 00:21:50,315 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-04-01 00:21:50,315 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts1 [2023-04-01 00:21:50,315 INFO L130 BoogieDeclarations]: Found specification of procedure write_mode_on_lcd [2023-04-01 00:21:50,315 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_Background [2023-04-01 00:21:50,316 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2023-04-01 00:21:50,316 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_Background [2023-04-01 00:21:50,316 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_schedule_jobs [2023-04-01 00:21:50,316 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_globals [2023-04-01 00:21:50,316 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_init [2023-04-01 00:21:50,316 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2023-04-01 00:21:50,316 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 00:21:50,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 00:21:50,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 00:21:50,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 00:21:50,796 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 00:21:50,798 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 00:21:59,712 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 00:21:59,776 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 00:21:59,776 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-01 00:21:59,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 12:21:59 BoogieIcfgContainer [2023-04-01 00:21:59,781 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 00:21:59,783 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 00:21:59,784 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 00:21:59,787 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 00:21:59,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 12:21:49" (1/3) ... [2023-04-01 00:21:59,788 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@361e0255 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 12:21:59, skipping insertion in model container [2023-04-01 00:21:59,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:21:49" (2/3) ... [2023-04-01 00:21:59,788 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@361e0255 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 12:21:59, skipping insertion in model container [2023-04-01 00:21:59,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 12:21:59" (3/3) ... [2023-04-01 00:21:59,789 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_nxt.1.M4-2.c [2023-04-01 00:21:59,805 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 00:21:59,806 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 00:21:59,890 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 00:21:59,897 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;@28a479b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 00:21:59,898 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 00:21:59,911 INFO L276 IsEmpty]: Start isEmpty. Operand has 1641 states, 965 states have (on average 1.2269430051813472) internal successors, (1184), 971 states have internal predecessors, (1184), 634 states have call successors, (634), 37 states have call predecessors, (634), 37 states have return successors, (634), 631 states have call predecessors, (634), 634 states have call successors, (634) [2023-04-01 00:22:00,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6597 [2023-04-01 00:22:00,454 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 00:22:00,458 INFO L195 NwaCegarLoop]: trace histogram [964, 108, 108, 108, 108, 108, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 00:22:00,458 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 00:22:00,463 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 00:22:00,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1245597921, now seen corresponding path program 1 times [2023-04-01 00:22:00,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 00:22:00,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722206405] [2023-04-01 00:22:00,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 00:22:00,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms