/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain EqDomain -i ../sv-benchmarks/c/seq-mthreaded/rekh_nxt.3.M4.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 12:32:25,808 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 12:32:25,810 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 12:32:25,850 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 12:32:25,851 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 12:32:25,855 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 12:32:25,858 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 12:32:25,860 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 12:32:25,862 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 12:32:25,866 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 12:32:25,868 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 12:32:25,869 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 12:32:25,870 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 12:32:25,872 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 12:32:25,873 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 12:32:25,874 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 12:32:25,875 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 12:32:25,875 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 12:32:25,877 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 12:32:25,881 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 12:32:25,882 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 12:32:25,883 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 12:32:25,884 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 12:32:25,885 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 12:32:25,893 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 12:32:25,893 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 12:32:25,893 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 12:32:25,895 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 12:32:25,895 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 12:32:25,896 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 12:32:25,896 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 12:32:25,897 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 12:32:25,898 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 12:32:25,899 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 12:32:25,899 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 12:32:25,899 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 12:32:25,900 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 12:32:25,900 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 12:32:25,900 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 12:32:25,901 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 12:32:25,901 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 12:32:25,903 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-01 12:32:25,930 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 12:32:25,931 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 12:32:25,931 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 12:32:25,931 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 12:32:25,932 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 12:32:25,932 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 12:32:25,932 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 12:32:25,932 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 12:32:25,933 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 12:32:25,933 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 12:32:25,933 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 12:32:25,934 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 12:32:25,934 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 12:32:25,934 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 12:32:25,934 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 12:32:25,934 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 12:32:25,934 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 12:32:25,934 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 12:32:25,935 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 12:32:25,935 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 12:32:25,935 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 12:32:25,935 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 12:32:25,936 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 12:32:25,936 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 12:32:25,936 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 12:32:25,936 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 12:32:25,937 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 12:32:25,937 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 12:32:25,937 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 12:32:25,937 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 12:32:25,937 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 12:32:25,937 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 12:32:25,938 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 12:32:25,938 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 12:32:25,938 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 12:32:25,938 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 12:32:25,938 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 12:32:25,938 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 12:32:25,938 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 12:32:25,939 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 12:32:25,939 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 12:32:25,939 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> EqDomain [2023-04-01 12:32:26,177 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 12:32:26,204 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 12:32:26,207 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 12:32:26,208 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 12:32:26,208 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 12:32:26,209 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_nxt.3.M4.c [2023-04-01 12:32:27,412 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 12:32:27,703 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 12:32:27,704 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_nxt.3.M4.c [2023-04-01 12:32:27,734 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3bfa9767a/70d16094bf2e4c4883c2dc58e4c4b352/FLAGf8dfee418 [2023-04-01 12:32:27,746 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3bfa9767a/70d16094bf2e4c4883c2dc58e4c4b352 [2023-04-01 12:32:27,748 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 12:32:27,749 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 12:32:27,751 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 12:32:27,751 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 12:32:27,758 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 12:32:27,759 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 12:32:27" (1/1) ... [2023-04-01 12:32:27,760 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b29d9c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:32:27, skipping insertion in model container [2023-04-01 12:32:27,760 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 12:32:27" (1/1) ... [2023-04-01 12:32:27,767 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 12:32:27,817 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 12:32:28,002 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.3.M4.c[1762,1775] [2023-04-01 12:32:28,447 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 12:32:28,465 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 12:32:28,476 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.3.M4.c[1762,1775] [2023-04-01 12:32:28,624 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 12:32:28,644 INFO L208 MainTranslator]: Completed translation [2023-04-01 12:32:28,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:32:28 WrapperNode [2023-04-01 12:32:28,644 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 12:32:28,645 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 12:32:28,646 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 12:32:28,646 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 12:32:28,655 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:32:28" (1/1) ... [2023-04-01 12:32:28,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:32:28" (1/1) ... [2023-04-01 12:32:28,712 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:32:28" (1/1) ... [2023-04-01 12:32:28,713 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:32:28" (1/1) ... [2023-04-01 12:32:28,838 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:32:28" (1/1) ... [2023-04-01 12:32:28,860 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:32:28" (1/1) ... [2023-04-01 12:32:28,889 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:32:28" (1/1) ... [2023-04-01 12:32:28,906 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:32:28" (1/1) ... [2023-04-01 12:32:28,939 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 12:32:28,941 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 12:32:28,941 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 12:32:28,941 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 12:32:28,943 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:32:28" (1/1) ... [2023-04-01 12:32:28,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 12:32:28,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 12:32:28,975 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-01 12:32:28,997 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-01 12:32:29,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 12:32:29,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 12:32:29,017 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 12:32:29,017 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-01 12:32:29,017 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-04-01 12:32:29,017 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_init [2023-04-01 12:32:29,017 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_control [2023-04-01 12:32:29,017 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2023-04-01 12:32:29,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2023-04-01 12:32:29,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2023-04-01 12:32:29,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_read_bt_packet [2023-04-01 12:32:29,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_battery_voltage [2023-04-01 12:32:29,018 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts1 [2023-04-01 12:32:29,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_sonar_sensor [2023-04-01 12:32:29,018 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts2 [2023-04-01 12:32:29,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-04-01 12:32:29,019 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts2 [2023-04-01 12:32:29,019 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-04-01 12:32:29,019 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts1 [2023-04-01 12:32:29,019 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_Background [2023-04-01 12:32:29,019 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2023-04-01 12:32:29,019 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_Background [2023-04-01 12:32:29,019 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_schedule_jobs [2023-04-01 12:32:29,019 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_globals [2023-04-01 12:32:29,019 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2023-04-01 12:32:29,020 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2023-04-01 12:32:29,020 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2023-04-01 12:32:29,020 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_assert_i0 [2023-04-01 12:32:29,020 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_init [2023-04-01 12:32:29,020 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_final [2023-04-01 12:32:29,020 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2023-04-01 12:32:29,020 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 12:32:29,020 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2023-04-01 12:32:29,020 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2023-04-01 12:32:29,020 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_observer_obstacle_flag [2023-04-01 12:32:29,020 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2023-04-01 12:32:29,021 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2023-04-01 12:32:29,021 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_observer_obstacle_flag [2023-04-01 12:32:29,021 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_shared [2023-04-01 12:32:29,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_bt_data_logger [2023-04-01 12:32:29,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_sound_tone [2023-04-01 12:32:29,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_status_monitor [2023-04-01 12:32:29,022 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2023-04-01 12:32:29,022 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2023-04-01 12:32:29,022 INFO L138 BoogieDeclarations]: Found implementation of procedure write_mode_on_lcd [2023-04-01 12:32:29,023 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 12:32:29,023 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 12:32:29,023 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 12:32:29,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 12:32:29,023 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_shared [2023-04-01 12:32:29,023 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_assert_i0 [2023-04-01 12:32:29,024 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2023-04-01 12:32:29,024 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2023-04-01 12:32:29,024 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2023-04-01 12:32:29,024 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-01 12:32:29,024 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2023-04-01 12:32:29,024 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 12:32:29,025 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-01 12:32:29,025 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cpu_lock [2023-04-01 12:32:29,025 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cpu_unlock [2023-04-01 12:32:29,025 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-04-01 12:32:29,025 INFO L130 BoogieDeclarations]: Found specification of procedure balance_init [2023-04-01 12:32:29,025 INFO L130 BoogieDeclarations]: Found specification of procedure balance_control [2023-04-01 12:32:29,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-01 12:32:29,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 12:32:29,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 12:32:29,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 12:32:29,025 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2023-04-01 12:32:29,026 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-04-01 12:32:29,026 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2023-04-01 12:32:29,026 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2023-04-01 12:32:29,026 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2023-04-01 12:32:29,026 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2023-04-01 12:32:29,026 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_observer_obstacle_flag [2023-04-01 12:32:29,026 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_observer_obstacle_flag [2023-04-01 12:32:29,026 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2023-04-01 12:32:29,026 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2023-04-01 12:32:29,026 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2023-04-01 12:32:29,026 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2023-04-01 12:32:29,027 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_sound_tone [2023-04-01 12:32:29,027 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_status_monitor [2023-04-01 12:32:29,027 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_read_bt_packet [2023-04-01 12:32:29,027 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_battery_voltage [2023-04-01 12:32:29,027 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2023-04-01 12:32:29,028 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_bt_data_logger [2023-04-01 12:32:29,028 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts1 [2023-04-01 12:32:29,028 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_sonar_sensor [2023-04-01 12:32:29,028 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts2 [2023-04-01 12:32:29,028 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-04-01 12:32:29,029 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts2 [2023-04-01 12:32:29,029 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-04-01 12:32:29,029 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts1 [2023-04-01 12:32:29,029 INFO L130 BoogieDeclarations]: Found specification of procedure write_mode_on_lcd [2023-04-01 12:32:29,029 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_Background [2023-04-01 12:32:29,029 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2023-04-01 12:32:29,029 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_Background [2023-04-01 12:32:29,029 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_schedule_jobs [2023-04-01 12:32:29,029 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_globals [2023-04-01 12:32:29,029 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_init [2023-04-01 12:32:29,029 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_final [2023-04-01 12:32:29,030 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2023-04-01 12:32:29,030 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 12:32:29,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 12:32:29,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 12:32:29,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 12:32:29,523 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 12:32:29,526 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 12:32:38,250 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 12:32:38,377 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 12:32:38,377 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-01 12:32:38,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 12:32:38 BoogieIcfgContainer [2023-04-01 12:32:38,382 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 12:32:38,385 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 12:32:38,385 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 12:32:38,388 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 12:32:38,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 12:32:27" (1/3) ... [2023-04-01 12:32:38,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@151139d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 12:32:38, skipping insertion in model container [2023-04-01 12:32:38,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:32:28" (2/3) ... [2023-04-01 12:32:38,390 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@151139d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 12:32:38, skipping insertion in model container [2023-04-01 12:32:38,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 12:32:38" (3/3) ... [2023-04-01 12:32:38,391 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_nxt.3.M4.c [2023-04-01 12:32:38,406 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 12:32:38,409 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 12:32:38,498 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 12:32:38,511 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;@3524002d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 12:32:38,512 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 12:32:38,524 INFO L276 IsEmpty]: Start isEmpty. Operand has 1974 states, 1134 states have (on average 1.199294532627866) internal successors, (1360), 1140 states have internal predecessors, (1360), 795 states have call successors, (795), 40 states have call predecessors, (795), 40 states have return successors, (795), 792 states have call predecessors, (795), 795 states have call successors, (795) [2023-04-01 12:32:38,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 904 [2023-04-01 12:32:38,579 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 12:32:38,589 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 12:32:38,589 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 12:32:38,594 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 12:32:38,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1963564673, now seen corresponding path program 1 times [2023-04-01 12:32:38,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 12:32:38,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887528270] [2023-04-01 12:32:38,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 12:32:38,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms