/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M4-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-03 02:15:27,406 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-03 02:15:27,408 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-03 02:15:27,427 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-03 02:15:27,428 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-03 02:15:27,429 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-03 02:15:27,429 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-03 02:15:27,430 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-03 02:15:27,431 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-03 02:15:27,435 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-03 02:15:27,436 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-03 02:15:27,438 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-03 02:15:27,438 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-03 02:15:27,442 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-03 02:15:27,442 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-03 02:15:27,444 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-03 02:15:27,444 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-03 02:15:27,445 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-03 02:15:27,446 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-03 02:15:27,450 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-03 02:15:27,450 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-03 02:15:27,451 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-03 02:15:27,452 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-03 02:15:27,453 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-03 02:15:27,458 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-03 02:15:27,458 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-03 02:15:27,458 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-03 02:15:27,459 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-03 02:15:27,459 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-03 02:15:27,459 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-03 02:15:27,460 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-03 02:15:27,460 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-03 02:15:27,460 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-03 02:15:27,461 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-03 02:15:27,461 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-03 02:15:27,461 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-03 02:15:27,462 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-03 02:15:27,462 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-03 02:15:27,462 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-03 02:15:27,463 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-03 02:15:27,463 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-03 02:15:27,469 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-03 02:15:27,493 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-03 02:15:27,494 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-03 02:15:27,494 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-03 02:15:27,494 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-03 02:15:27,494 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-03 02:15:27,495 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-03 02:15:27,495 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-03 02:15:27,495 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-03 02:15:27,495 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-03 02:15:27,495 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-03 02:15:27,495 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-03 02:15:27,495 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-03 02:15:27,495 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-03 02:15:27,495 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-03 02:15:27,495 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-03 02:15:27,495 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-03 02:15:27,495 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-03 02:15:27,496 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-03 02:15:27,496 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-03 02:15:27,496 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-03 02:15:27,496 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-03 02:15:27,496 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-03 02:15:27,496 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-03 02:15:27,496 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-03 02:15:27,496 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-03 02:15:27,497 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-03 02:15:27,497 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-03 02:15:27,497 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-03 02:15:27,497 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-03 02:15:27,497 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-03 02:15:27,497 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-03 02:15:27,497 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-03 02:15:27,497 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 02:15:27,497 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-03 02:15:27,497 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-03 02:15:27,498 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-03 02:15:27,498 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-03 02:15:27,498 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-03 02:15:27,498 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-03 02:15:27,498 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-03 02:15:27,498 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-03 02:15:27,498 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-03 02:15:27,692 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-03 02:15:27,717 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-03 02:15:27,721 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-03 02:15:27,722 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-03 02:15:27,723 INFO L275 PluginConnector]: CDTParser initialized [2023-04-03 02:15:27,724 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M4-1.c [2023-04-03 02:15:28,745 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-03 02:15:28,966 INFO L351 CDTParser]: Found 1 translation units. [2023-04-03 02:15:28,967 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M4-1.c [2023-04-03 02:15:28,981 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4533fe057/1d993cdf94304819957220e265b0fca6/FLAG8f03c1e30 [2023-04-03 02:15:28,991 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4533fe057/1d993cdf94304819957220e265b0fca6 [2023-04-03 02:15:28,994 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-03 02:15:28,995 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-03 02:15:28,995 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-03 02:15:28,995 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-03 02:15:28,998 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-03 02:15:28,998 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 02:15:28" (1/1) ... [2023-04-03 02:15:28,999 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21f6ae9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 02:15:28, skipping insertion in model container [2023-04-03 02:15:28,999 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 02:15:28" (1/1) ... [2023-04-03 02:15:29,004 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-03 02:15:29,065 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-03 02:15:29,189 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_aso.1.M4-1.c[1800,1813] [2023-04-03 02:15:29,497 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 02:15:29,509 INFO L203 MainTranslator]: Completed pre-run [2023-04-03 02:15:29,524 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_aso.1.M4-1.c[1800,1813] [2023-04-03 02:15:29,720 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 02:15:29,737 INFO L208 MainTranslator]: Completed translation [2023-04-03 02:15:29,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 02:15:29 WrapperNode [2023-04-03 02:15:29,737 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-03 02:15:29,738 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-03 02:15:29,738 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-03 02:15:29,738 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-03 02:15:29,747 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 02:15:29" (1/1) ... [2023-04-03 02:15:29,747 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 02:15:29" (1/1) ... [2023-04-03 02:15:29,798 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 02:15:29" (1/1) ... [2023-04-03 02:15:29,798 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 02:15:29" (1/1) ... [2023-04-03 02:15:29,889 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 02:15:29" (1/1) ... [2023-04-03 02:15:29,907 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 02:15:29" (1/1) ... [2023-04-03 02:15:29,935 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 02:15:29" (1/1) ... [2023-04-03 02:15:29,950 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 02:15:29" (1/1) ... [2023-04-03 02:15:29,980 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-03 02:15:29,981 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-03 02:15:29,981 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-03 02:15:29,981 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-03 02:15:29,982 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 02:15:29" (1/1) ... [2023-04-03 02:15:29,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 02:15:29,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 02:15:30,009 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-03 02:15:30,021 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-03 02:15:30,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-03 02:15:30,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-03 02:15:30,053 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-03 02:15:30,053 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-03 02:15:30,053 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-04-03 02:15:30,053 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_init [2023-04-03 02:15:30,053 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_control [2023-04-03 02:15:30,054 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2023-04-03 02:15:30,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2023-04-03 02:15:30,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2023-04-03 02:15:30,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_read_bt_packet [2023-04-03 02:15:30,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_battery_voltage [2023-04-03 02:15:30,054 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts1 [2023-04-03 02:15:30,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_sonar_sensor [2023-04-03 02:15:30,054 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts2 [2023-04-03 02:15:30,054 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts3 [2023-04-03 02:15:30,055 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2023-04-03 02:15:30,055 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts3 [2023-04-03 02:15:30,055 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-04-03 02:15:30,055 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts2 [2023-04-03 02:15:30,055 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-04-03 02:15:30,055 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts1 [2023-04-03 02:15:30,055 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_schedule_jobs [2023-04-03 02:15:30,055 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_globals [2023-04-03 02:15:30,055 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2023-04-03 02:15:30,055 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2023-04-03 02:15:30,055 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2023-04-03 02:15:30,055 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_assert_i0 [2023-04-03 02:15:30,055 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_init [2023-04-03 02:15:30,055 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_final [2023-04-03 02:15:30,055 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2023-04-03 02:15:30,055 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-03 02:15:30,056 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2023-04-03 02:15:30,056 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2023-04-03 02:15:30,056 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2023-04-03 02:15:30,056 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2023-04-03 02:15:30,056 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2023-04-03 02:15:30,056 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2023-04-03 02:15:30,056 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2023-04-03 02:15:30,056 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2023-04-03 02:15:30,056 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_shared [2023-04-03 02:15:30,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_bt_data_logger [2023-04-03 02:15:30,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_sound_tone [2023-04-03 02:15:30,057 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2023-04-03 02:15:30,057 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2023-04-03 02:15:30,057 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-03 02:15:30,058 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-03 02:15:30,058 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-03 02:15:30,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-03 02:15:30,058 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_shared [2023-04-03 02:15:30,058 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_assert_i0 [2023-04-03 02:15:30,058 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2023-04-03 02:15:30,058 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2023-04-03 02:15:30,058 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2023-04-03 02:15:30,058 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-04-03 02:15:30,059 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-03 02:15:30,059 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2023-04-03 02:15:30,059 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-03 02:15:30,059 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-03 02:15:30,059 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cpu_lock [2023-04-03 02:15:30,059 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cpu_unlock [2023-04-03 02:15:30,059 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-04-03 02:15:30,059 INFO L130 BoogieDeclarations]: Found specification of procedure balance_init [2023-04-03 02:15:30,059 INFO L130 BoogieDeclarations]: Found specification of procedure balance_control [2023-04-03 02:15:30,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-03 02:15:30,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-03 02:15:30,059 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-03 02:15:30,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-03 02:15:30,059 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2023-04-03 02:15:30,059 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2023-04-03 02:15:30,059 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2023-04-03 02:15:30,059 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2023-04-03 02:15:30,059 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2023-04-03 02:15:30,060 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2023-04-03 02:15:30,060 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2023-04-03 02:15:30,060 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2023-04-03 02:15:30,060 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2023-04-03 02:15:30,060 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2023-04-03 02:15:30,060 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2023-04-03 02:15:30,060 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2023-04-03 02:15:30,060 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2023-04-03 02:15:30,060 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_sound_tone [2023-04-03 02:15:30,060 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_read_bt_packet [2023-04-03 02:15:30,060 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_battery_voltage [2023-04-03 02:15:30,061 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2023-04-03 02:15:30,061 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_bt_data_logger [2023-04-03 02:15:30,061 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts1 [2023-04-03 02:15:30,061 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_sonar_sensor [2023-04-03 02:15:30,061 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts2 [2023-04-03 02:15:30,061 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts3 [2023-04-03 02:15:30,061 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2023-04-03 02:15:30,061 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts3 [2023-04-03 02:15:30,062 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-04-03 02:15:30,062 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts2 [2023-04-03 02:15:30,062 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-04-03 02:15:30,062 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts1 [2023-04-03 02:15:30,062 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_schedule_jobs [2023-04-03 02:15:30,062 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_globals [2023-04-03 02:15:30,062 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_init [2023-04-03 02:15:30,062 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_final [2023-04-03 02:15:30,062 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2023-04-03 02:15:30,062 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-03 02:15:30,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-03 02:15:30,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-03 02:15:30,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-03 02:15:30,588 INFO L236 CfgBuilder]: Building ICFG [2023-04-03 02:15:30,591 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-03 02:15:39,659 INFO L277 CfgBuilder]: Performing block encoding [2023-04-03 02:15:39,788 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-03 02:15:39,789 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-03 02:15:39,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 02:15:39 BoogieIcfgContainer [2023-04-03 02:15:39,794 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-03 02:15:39,796 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-03 02:15:39,797 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-03 02:15:39,799 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-03 02:15:39,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.04 02:15:28" (1/3) ... [2023-04-03 02:15:39,800 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dd6ff92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 02:15:39, skipping insertion in model container [2023-04-03 02:15:39,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 02:15:29" (2/3) ... [2023-04-03 02:15:39,801 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dd6ff92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 02:15:39, skipping insertion in model container [2023-04-03 02:15:39,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 02:15:39" (3/3) ... [2023-04-03 02:15:39,803 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_aso.1.M4-1.c [2023-04-03 02:15:39,816 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-03 02:15:39,818 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-03 02:15:39,909 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-03 02:15:39,919 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;@54ddd5dc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-03 02:15:39,919 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-03 02:15:39,932 INFO L276 IsEmpty]: Start isEmpty. Operand has 2359 states, 1356 states have (on average 1.1954277286135693) internal successors, (1621), 1362 states have internal predecessors, (1621), 958 states have call successors, (958), 40 states have call predecessors, (958), 40 states have return successors, (958), 956 states have call predecessors, (958), 958 states have call successors, (958) [2023-04-03 02:15:39,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 932 [2023-04-03 02:15:39,979 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 02:15:39,980 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 02:15:39,981 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 02:15:39,985 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 02:15:39,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1438429784, now seen corresponding path program 1 times [2023-04-03 02:15:39,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 02:15:39,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250724001] [2023-04-03 02:15:39,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 02:15:39,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms