/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.3.M1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 06:26:07,852 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 06:26:07,855 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 06:26:07,894 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 06:26:07,895 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 06:26:07,898 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 06:26:07,900 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 06:26:07,903 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 06:26:07,906 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 06:26:07,910 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 06:26:07,912 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 06:26:07,913 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 06:26:07,913 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 06:26:07,916 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 06:26:07,917 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 06:26:07,918 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 06:26:07,919 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 06:26:07,920 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 06:26:07,922 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 06:26:07,927 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 06:26:07,928 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 06:26:07,929 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 06:26:07,930 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 06:26:07,931 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 06:26:07,939 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 06:26:07,940 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 06:26:07,940 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 06:26:07,942 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 06:26:07,943 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 06:26:07,943 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 06:26:07,943 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 06:26:07,944 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 06:26:07,945 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 06:26:07,946 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 06:26:07,947 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 06:26:07,947 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 06:26:07,947 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 06:26:07,947 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 06:26:07,948 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 06:26:07,948 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 06:26:07,949 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 06:26:07,950 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 06:26:07,972 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 06:26:07,972 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 06:26:07,972 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 06:26:07,973 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 06:26:07,973 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 06:26:07,974 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 06:26:07,974 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 06:26:07,974 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 06:26:07,974 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 06:26:07,974 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 06:26:07,975 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 06:26:07,975 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 06:26:07,975 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 06:26:07,975 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 06:26:07,976 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 06:26:07,976 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 06:26:07,976 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 06:26:07,976 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 06:26:07,977 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 06:26:07,977 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 06:26:07,977 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 06:26:07,977 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 06:26:07,977 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 06:26:07,977 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 06:26:07,978 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 06:26:07,978 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 06:26:07,978 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 06:26:07,978 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 06:26:07,978 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 06:26:07,978 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 06:26:07,979 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 06:26:07,979 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 06:26:07,979 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 06:26:07,979 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 06:26:07,979 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 06:26:07,979 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 06:26:07,980 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 06:26:07,980 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 06:26:07,980 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 06:26:07,980 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 06:26:07,980 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 06:26:07,980 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-01 06:26:08,246 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 06:26:08,270 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 06:26:08,273 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 06:26:08,274 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 06:26:08,276 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 06:26:08,278 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_nxt.3.M1.c [2023-04-01 06:26:09,530 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 06:26:09,843 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 06:26:09,844 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_nxt.3.M1.c [2023-04-01 06:26:09,864 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f304e882a/1a04b9608efa4bb6852653bde1f6edda/FLAG1a8074b2c [2023-04-01 06:26:09,879 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f304e882a/1a04b9608efa4bb6852653bde1f6edda [2023-04-01 06:26:09,881 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 06:26:09,883 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 06:26:09,886 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 06:26:09,886 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 06:26:09,888 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 06:26:09,889 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 06:26:09" (1/1) ... [2023-04-01 06:26:09,890 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@740e41d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:26:09, skipping insertion in model container [2023-04-01 06:26:09,891 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 06:26:09" (1/1) ... [2023-04-01 06:26:09,897 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 06:26:09,961 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 06:26:10,145 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.M1.c[1762,1775] [2023-04-01 06:26:10,569 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 06:26:10,592 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 06:26:10,607 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.M1.c[1762,1775] [2023-04-01 06:26:10,853 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 06:26:10,874 INFO L208 MainTranslator]: Completed translation [2023-04-01 06:26:10,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:26:10 WrapperNode [2023-04-01 06:26:10,874 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 06:26:10,875 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 06:26:10,876 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 06:26:10,876 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 06:26:10,884 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:26:10" (1/1) ... [2023-04-01 06:26:10,884 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:26:10" (1/1) ... [2023-04-01 06:26:10,947 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:26:10" (1/1) ... [2023-04-01 06:26:10,948 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:26:10" (1/1) ... [2023-04-01 06:26:11,029 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:26:10" (1/1) ... [2023-04-01 06:26:11,051 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:26:10" (1/1) ... [2023-04-01 06:26:11,072 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:26:10" (1/1) ... [2023-04-01 06:26:11,089 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:26:10" (1/1) ... [2023-04-01 06:26:11,115 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 06:26:11,117 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 06:26:11,117 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 06:26:11,117 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 06:26:11,118 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:26:10" (1/1) ... [2023-04-01 06:26:11,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 06:26:11,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 06:26:11,149 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 06:26:11,157 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 06:26:11,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 06:26:11,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 06:26:11,188 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 06:26:11,188 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-01 06:26:11,189 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-04-01 06:26:11,189 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_init [2023-04-01 06:26:11,189 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_control [2023-04-01 06:26:11,189 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2023-04-01 06:26:11,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2023-04-01 06:26:11,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2023-04-01 06:26:11,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_read_bt_packet [2023-04-01 06:26:11,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_battery_voltage [2023-04-01 06:26:11,189 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts1 [2023-04-01 06:26:11,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_sonar_sensor [2023-04-01 06:26:11,190 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts2 [2023-04-01 06:26:11,190 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-04-01 06:26:11,190 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts2 [2023-04-01 06:26:11,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-04-01 06:26:11,191 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts1 [2023-04-01 06:26:11,191 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_Background [2023-04-01 06:26:11,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2023-04-01 06:26:11,191 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_Background [2023-04-01 06:26:11,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_schedule_jobs [2023-04-01 06:26:11,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_globals [2023-04-01 06:26:11,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2023-04-01 06:26:11,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2023-04-01 06:26:11,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2023-04-01 06:26:11,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_assert_i0 [2023-04-01 06:26:11,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_init [2023-04-01 06:26:11,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_final [2023-04-01 06:26:11,192 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2023-04-01 06:26:11,192 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 06:26:11,192 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2023-04-01 06:26:11,192 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2023-04-01 06:26:11,192 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_observer_obstacle_flag [2023-04-01 06:26:11,192 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2023-04-01 06:26:11,192 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2023-04-01 06:26:11,192 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_observer_obstacle_flag [2023-04-01 06:26:11,193 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_shared [2023-04-01 06:26:11,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_bt_data_logger [2023-04-01 06:26:11,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_sound_tone [2023-04-01 06:26:11,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_status_monitor [2023-04-01 06:26:11,193 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2023-04-01 06:26:11,193 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2023-04-01 06:26:11,193 INFO L138 BoogieDeclarations]: Found implementation of procedure write_mode_on_lcd [2023-04-01 06:26:11,194 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 06:26:11,194 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 06:26:11,194 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 06:26:11,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 06:26:11,195 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_shared [2023-04-01 06:26:11,195 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_assert_i0 [2023-04-01 06:26:11,195 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2023-04-01 06:26:11,195 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2023-04-01 06:26:11,195 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2023-04-01 06:26:11,195 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-01 06:26:11,196 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2023-04-01 06:26:11,196 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 06:26:11,196 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-01 06:26:11,196 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cpu_lock [2023-04-01 06:26:11,196 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cpu_unlock [2023-04-01 06:26:11,196 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-04-01 06:26:11,196 INFO L130 BoogieDeclarations]: Found specification of procedure balance_init [2023-04-01 06:26:11,196 INFO L130 BoogieDeclarations]: Found specification of procedure balance_control [2023-04-01 06:26:11,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-01 06:26:11,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 06:26:11,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 06:26:11,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 06:26:11,197 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2023-04-01 06:26:11,197 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-04-01 06:26:11,197 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2023-04-01 06:26:11,197 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2023-04-01 06:26:11,197 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2023-04-01 06:26:11,197 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2023-04-01 06:26:11,197 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_observer_obstacle_flag [2023-04-01 06:26:11,197 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_observer_obstacle_flag [2023-04-01 06:26:11,197 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2023-04-01 06:26:11,197 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2023-04-01 06:26:11,197 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2023-04-01 06:26:11,197 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2023-04-01 06:26:11,198 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_sound_tone [2023-04-01 06:26:11,198 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_status_monitor [2023-04-01 06:26:11,198 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_read_bt_packet [2023-04-01 06:26:11,198 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_battery_voltage [2023-04-01 06:26:11,198 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2023-04-01 06:26:11,199 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_bt_data_logger [2023-04-01 06:26:11,199 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts1 [2023-04-01 06:26:11,199 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_sonar_sensor [2023-04-01 06:26:11,199 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts2 [2023-04-01 06:26:11,199 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-04-01 06:26:11,199 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts2 [2023-04-01 06:26:11,200 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-04-01 06:26:11,200 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts1 [2023-04-01 06:26:11,200 INFO L130 BoogieDeclarations]: Found specification of procedure write_mode_on_lcd [2023-04-01 06:26:11,200 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_Background [2023-04-01 06:26:11,200 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2023-04-01 06:26:11,200 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_Background [2023-04-01 06:26:11,200 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_schedule_jobs [2023-04-01 06:26:11,200 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_globals [2023-04-01 06:26:11,200 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_init [2023-04-01 06:26:11,200 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_final [2023-04-01 06:26:11,200 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2023-04-01 06:26:11,200 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 06:26:11,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 06:26:11,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 06:26:11,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 06:26:11,649 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 06:26:11,652 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 06:26:20,946 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 06:26:21,072 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 06:26:21,073 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-01 06:26:21,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 06:26:21 BoogieIcfgContainer [2023-04-01 06:26:21,079 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 06:26:21,083 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 06:26:21,083 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 06:26:21,086 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 06:26:21,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 06:26:09" (1/3) ... [2023-04-01 06:26:21,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1096e67c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 06:26:21, skipping insertion in model container [2023-04-01 06:26:21,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:26:10" (2/3) ... [2023-04-01 06:26:21,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1096e67c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 06:26:21, skipping insertion in model container [2023-04-01 06:26:21,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 06:26:21" (3/3) ... [2023-04-01 06:26:21,089 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_nxt.3.M1.c [2023-04-01 06:26:21,106 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 06:26:21,108 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 06:26:21,205 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 06:26:21,219 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;@6582aa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 06:26:21,219 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 06:26:21,231 INFO L276 IsEmpty]: Start isEmpty. Operand has 1972 states, 1133 states have (on average 1.1994704324801413) internal successors, (1359), 1139 states have internal predecessors, (1359), 794 states have call successors, (794), 40 states have call predecessors, (794), 40 states have return successors, (794), 791 states have call predecessors, (794), 794 states have call successors, (794) [2023-04-01 06:26:21,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 904 [2023-04-01 06:26:21,280 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 06:26:21,282 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 06:26:21,283 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 06:26:21,289 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 06:26:21,289 INFO L85 PathProgramCache]: Analyzing trace with hash -252013604, now seen corresponding path program 1 times [2023-04-01 06:26:21,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 06:26:21,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314148968] [2023-04-01 06:26:21,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 06:26:21,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms