/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_nxt.2.M1-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-03 02:19:21,849 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-03 02:19:21,851 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-03 02:19:21,879 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-03 02:19:21,879 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-03 02:19:21,880 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-03 02:19:21,882 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-03 02:19:21,884 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-03 02:19:21,885 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-03 02:19:21,886 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-03 02:19:21,887 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-03 02:19:21,888 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-03 02:19:21,888 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-03 02:19:21,889 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-03 02:19:21,890 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-03 02:19:21,891 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-03 02:19:21,891 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-03 02:19:21,892 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-03 02:19:21,894 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-03 02:19:21,896 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-03 02:19:21,897 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-03 02:19:21,898 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-03 02:19:21,899 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-03 02:19:21,900 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-03 02:19:21,902 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-03 02:19:21,903 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-03 02:19:21,903 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-03 02:19:21,904 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-03 02:19:21,904 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-03 02:19:21,905 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-03 02:19:21,905 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-03 02:19:21,906 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-03 02:19:21,906 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-03 02:19:21,907 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-03 02:19:21,908 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-03 02:19:21,908 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-03 02:19:21,908 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-03 02:19:21,909 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-03 02:19:21,909 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-03 02:19:21,909 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-03 02:19:21,910 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-03 02:19:21,911 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 02:19:21,926 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-03 02:19:21,926 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-03 02:19:21,927 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-03 02:19:21,927 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-03 02:19:21,927 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-03 02:19:21,927 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-03 02:19:21,927 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-03 02:19:21,928 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-03 02:19:21,928 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-03 02:19:21,928 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-03 02:19:21,928 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-03 02:19:21,928 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-03 02:19:21,928 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-03 02:19:21,928 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-03 02:19:21,928 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-03 02:19:21,928 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-03 02:19:21,928 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-03 02:19:21,928 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-03 02:19:21,929 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-03 02:19:21,929 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-03 02:19:21,929 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-03 02:19:21,929 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-03 02:19:21,929 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-03 02:19:21,929 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-03 02:19:21,929 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-03 02:19:21,929 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-03 02:19:21,930 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-03 02:19:21,930 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-03 02:19:21,930 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-03 02:19:21,930 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-03 02:19:21,930 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-03 02:19:21,930 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-03 02:19:21,930 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 02:19:21,930 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-03 02:19:21,930 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-03 02:19:21,930 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-03 02:19:21,930 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-03 02:19:21,931 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-03 02:19:21,931 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-03 02:19:21,931 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-03 02:19:21,931 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-03 02:19:21,931 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-03 02:19:22,133 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-03 02:19:22,169 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-03 02:19:22,171 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-03 02:19:22,172 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-03 02:19:22,174 INFO L275 PluginConnector]: CDTParser initialized [2023-04-03 02:19:22,175 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_nxt.2.M1-2.c [2023-04-03 02:19:23,415 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-03 02:19:23,714 INFO L351 CDTParser]: Found 1 translation units. [2023-04-03 02:19:23,715 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_nxt.2.M1-2.c [2023-04-03 02:19:23,731 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6800f5270/43d88e08f3314a188b58752af1949556/FLAGed86720eb [2023-04-03 02:19:23,745 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6800f5270/43d88e08f3314a188b58752af1949556 [2023-04-03 02:19:23,747 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-03 02:19:23,749 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-03 02:19:23,753 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-03 02:19:23,753 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-03 02:19:23,756 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-03 02:19:23,756 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 02:19:23" (1/1) ... [2023-04-03 02:19:23,757 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4da6d728 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 02:19:23, skipping insertion in model container [2023-04-03 02:19:23,758 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 02:19:23" (1/1) ... [2023-04-03 02:19:23,765 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-03 02:19:23,811 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-03 02:19:23,923 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_nxt.2.M1-2.c[1682,1695] [2023-04-03 02:19:24,219 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 02:19:24,254 INFO L203 MainTranslator]: Completed pre-run [2023-04-03 02:19:24,274 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_nxt.2.M1-2.c[1682,1695] [2023-04-03 02:19:24,439 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 02:19:24,454 INFO L208 MainTranslator]: Completed translation [2023-04-03 02:19:24,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 02:19:24 WrapperNode [2023-04-03 02:19:24,455 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-03 02:19:24,456 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-03 02:19:24,456 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-03 02:19:24,456 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-03 02:19:24,465 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 02:19:24" (1/1) ... [2023-04-03 02:19:24,465 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 02:19:24" (1/1) ... [2023-04-03 02:19:24,519 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 02:19:24" (1/1) ... [2023-04-03 02:19:24,520 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 02:19:24" (1/1) ... [2023-04-03 02:19:24,619 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 02:19:24" (1/1) ... [2023-04-03 02:19:24,636 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 02:19:24" (1/1) ... [2023-04-03 02:19:24,659 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 02:19:24" (1/1) ... [2023-04-03 02:19:24,673 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 02:19:24" (1/1) ... [2023-04-03 02:19:24,697 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-03 02:19:24,699 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-03 02:19:24,699 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-03 02:19:24,699 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-03 02:19:24,700 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 02:19:24" (1/1) ... [2023-04-03 02:19:24,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 02:19:24,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 02:19:24,744 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 02:19:24,777 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 02:19:24,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-03 02:19:24,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-03 02:19:24,806 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-03 02:19:24,806 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-03 02:19:24,806 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-04-03 02:19:24,807 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_init [2023-04-03 02:19:24,807 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_control [2023-04-03 02:19:24,807 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2023-04-03 02:19:24,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2023-04-03 02:19:24,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2023-04-03 02:19:24,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_read_bt_packet [2023-04-03 02:19:24,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_battery_voltage [2023-04-03 02:19:24,807 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts1 [2023-04-03 02:19:24,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_sonar_sensor [2023-04-03 02:19:24,808 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts2 [2023-04-03 02:19:24,808 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-04-03 02:19:24,808 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts2 [2023-04-03 02:19:24,808 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-04-03 02:19:24,808 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts1 [2023-04-03 02:19:24,808 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_Background [2023-04-03 02:19:24,808 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2023-04-03 02:19:24,808 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_Background [2023-04-03 02:19:24,809 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_schedule_jobs [2023-04-03 02:19:24,809 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_globals [2023-04-03 02:19:24,809 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2023-04-03 02:19:24,809 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2023-04-03 02:19:24,809 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2023-04-03 02:19:24,809 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_assert_i0 [2023-04-03 02:19:24,809 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_init [2023-04-03 02:19:24,809 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_final [2023-04-03 02:19:24,809 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2023-04-03 02:19:24,809 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-03 02:19:24,809 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2023-04-03 02:19:24,809 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2023-04-03 02:19:24,809 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2023-04-03 02:19:24,809 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2023-04-03 02:19:24,810 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_shared [2023-04-03 02:19:24,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_bt_data_logger [2023-04-03 02:19:24,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_sound_tone [2023-04-03 02:19:24,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_status_monitor [2023-04-03 02:19:24,810 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2023-04-03 02:19:24,810 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2023-04-03 02:19:24,810 INFO L138 BoogieDeclarations]: Found implementation of procedure write_mode_on_lcd [2023-04-03 02:19:24,811 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-03 02:19:24,811 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-03 02:19:24,811 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-03 02:19:24,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-03 02:19:24,811 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_shared [2023-04-03 02:19:24,811 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_assert_i0 [2023-04-03 02:19:24,812 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2023-04-03 02:19:24,812 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2023-04-03 02:19:24,812 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2023-04-03 02:19:24,812 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-03 02:19:24,812 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2023-04-03 02:19:24,812 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-03 02:19:24,812 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-03 02:19:24,812 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-04-03 02:19:24,813 INFO L130 BoogieDeclarations]: Found specification of procedure balance_init [2023-04-03 02:19:24,813 INFO L130 BoogieDeclarations]: Found specification of procedure balance_control [2023-04-03 02:19:24,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-03 02:19:24,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-03 02:19:24,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-03 02:19:24,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-03 02:19:24,813 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2023-04-03 02:19:24,813 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-04-03 02:19:24,813 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2023-04-03 02:19:24,813 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2023-04-03 02:19:24,813 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2023-04-03 02:19:24,813 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2023-04-03 02:19:24,813 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2023-04-03 02:19:24,813 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2023-04-03 02:19:24,813 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2023-04-03 02:19:24,813 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2023-04-03 02:19:24,813 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_sound_tone [2023-04-03 02:19:24,814 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_status_monitor [2023-04-03 02:19:24,814 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_read_bt_packet [2023-04-03 02:19:24,814 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_battery_voltage [2023-04-03 02:19:24,814 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2023-04-03 02:19:24,814 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_bt_data_logger [2023-04-03 02:19:24,814 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts1 [2023-04-03 02:19:24,814 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_sonar_sensor [2023-04-03 02:19:24,814 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts2 [2023-04-03 02:19:24,815 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-04-03 02:19:24,815 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts2 [2023-04-03 02:19:24,815 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-04-03 02:19:24,815 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts1 [2023-04-03 02:19:24,815 INFO L130 BoogieDeclarations]: Found specification of procedure write_mode_on_lcd [2023-04-03 02:19:24,815 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_Background [2023-04-03 02:19:24,816 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2023-04-03 02:19:24,816 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_Background [2023-04-03 02:19:24,816 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_schedule_jobs [2023-04-03 02:19:24,816 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_globals [2023-04-03 02:19:24,816 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_init [2023-04-03 02:19:24,816 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_final [2023-04-03 02:19:24,816 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2023-04-03 02:19:24,816 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-03 02:19:24,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-03 02:19:24,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-03 02:19:24,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-03 02:19:25,174 INFO L236 CfgBuilder]: Building ICFG [2023-04-03 02:19:25,176 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-03 02:19:32,076 INFO L277 CfgBuilder]: Performing block encoding [2023-04-03 02:19:32,176 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-03 02:19:32,176 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-03 02:19:32,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 02:19:32 BoogieIcfgContainer [2023-04-03 02:19:32,181 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-03 02:19:32,183 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-03 02:19:32,183 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-03 02:19:32,186 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-03 02:19:32,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.04 02:19:23" (1/3) ... [2023-04-03 02:19:32,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c4c4d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 02:19:32, skipping insertion in model container [2023-04-03 02:19:32,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 02:19:24" (2/3) ... [2023-04-03 02:19:32,187 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c4c4d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 02:19:32, skipping insertion in model container [2023-04-03 02:19:32,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 02:19:32" (3/3) ... [2023-04-03 02:19:32,188 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_nxt.2.M1-2.c [2023-04-03 02:19:32,202 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-03 02:19:32,202 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-03 02:19:32,290 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-03 02:19:32,296 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;@4687fbde, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-03 02:19:32,296 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-03 02:19:32,309 INFO L276 IsEmpty]: Start isEmpty. Operand has 1691 states, 988 states have (on average 1.2216599190283401) internal successors, (1207), 994 states have internal predecessors, (1207), 660 states have call successors, (660), 38 states have call predecessors, (660), 38 states have return successors, (660), 657 states have call predecessors, (660), 660 states have call successors, (660) [2023-04-03 02:19:32,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 904 [2023-04-03 02:19:32,369 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 02:19:32,371 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] [2023-04-03 02:19:32,371 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 02:19:32,375 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 02:19:32,375 INFO L85 PathProgramCache]: Analyzing trace with hash 550027651, now seen corresponding path program 1 times [2023-04-03 02:19:32,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 02:19:32,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709866591] [2023-04-03 02:19:32,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 02:19:32,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms