/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_aso.1.M4-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 12:30:36,869 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 12:30:36,871 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 12:30:36,900 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 12:30:36,900 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 12:30:36,904 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 12:30:36,907 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 12:30:36,909 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 12:30:36,911 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 12:30:36,915 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 12:30:36,916 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 12:30:36,917 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 12:30:36,917 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 12:30:36,921 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 12:30:36,922 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 12:30:36,923 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 12:30:36,923 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 12:30:36,924 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 12:30:36,926 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 12:30:36,931 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 12:30:36,932 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 12:30:36,932 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 12:30:36,933 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 12:30:36,934 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 12:30:36,941 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 12:30:36,941 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 12:30:36,941 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 12:30:36,943 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 12:30:36,943 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 12:30:36,944 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 12:30:36,944 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 12:30:36,944 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 12:30:36,945 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 12:30:36,946 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 12:30:36,946 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 12:30:36,946 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 12:30:36,947 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 12:30:36,947 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 12:30:36,947 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 12:30:36,947 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 12:30:36,948 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 12:30:36,949 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 12:30:36,976 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 12:30:36,976 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 12:30:36,976 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 12:30:36,977 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 12:30:36,977 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 12:30:36,977 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 12:30:36,977 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 12:30:36,978 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 12:30:36,978 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 12:30:36,978 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 12:30:36,978 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 12:30:36,978 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 12:30:36,979 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 12:30:36,979 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 12:30:36,979 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 12:30:36,979 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 12:30:36,979 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 12:30:36,979 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 12:30:36,980 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 12:30:36,980 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 12:30:36,980 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 12:30:36,980 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 12:30:36,980 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 12:30:36,980 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 12:30:36,980 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 12:30:36,981 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 12:30:36,981 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 12:30:36,981 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 12:30:36,981 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 12:30:36,981 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 12:30:36,981 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 12:30:36,981 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 12:30:36,982 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 12:30:36,982 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 12:30:36,982 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 12:30:36,982 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 12:30:36,982 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 12:30:36,982 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 12:30:36,982 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 12:30:36,982 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 12:30:36,982 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 12:30:36,982 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> EqDomain [2023-04-01 12:30:37,196 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 12:30:37,215 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 12:30:37,217 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 12:30:37,218 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 12:30:37,219 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 12:30:37,219 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M4-2.c [2023-04-01 12:30:38,256 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 12:30:38,547 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 12:30:38,547 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M4-2.c [2023-04-01 12:30:38,562 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18ae14db3/843f26d36dfc4fc3a2e403828347e9bb/FLAGaad6d5650 [2023-04-01 12:30:38,576 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18ae14db3/843f26d36dfc4fc3a2e403828347e9bb [2023-04-01 12:30:38,578 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 12:30:38,579 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 12:30:38,582 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 12:30:38,583 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 12:30:38,585 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 12:30:38,586 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 12:30:38" (1/1) ... [2023-04-01 12:30:38,587 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cb9e2cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:30:38, skipping insertion in model container [2023-04-01 12:30:38,588 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 12:30:38" (1/1) ... [2023-04-01 12:30:38,593 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 12:30:38,666 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 12:30:38,843 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M4-2.c[1719,1732] [2023-04-01 12:30:39,142 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 12:30:39,164 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 12:30:39,172 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M4-2.c[1719,1732] [2023-04-01 12:30:39,355 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 12:30:39,373 INFO L208 MainTranslator]: Completed translation [2023-04-01 12:30:39,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:30:39 WrapperNode [2023-04-01 12:30:39,373 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 12:30:39,374 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 12:30:39,374 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 12:30:39,375 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 12:30:39,383 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:30:39" (1/1) ... [2023-04-01 12:30:39,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:30:39" (1/1) ... [2023-04-01 12:30:39,467 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:30:39" (1/1) ... [2023-04-01 12:30:39,467 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:30:39" (1/1) ... [2023-04-01 12:30:39,643 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:30:39" (1/1) ... [2023-04-01 12:30:39,659 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:30:39" (1/1) ... [2023-04-01 12:30:39,678 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:30:39" (1/1) ... [2023-04-01 12:30:39,692 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:30:39" (1/1) ... [2023-04-01 12:30:39,715 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 12:30:39,716 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 12:30:39,716 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 12:30:39,716 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 12:30:39,718 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:30:39" (1/1) ... [2023-04-01 12:30:39,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 12:30:39,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 12:30:39,754 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 12:30:39,760 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 12:30:39,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 12:30:39,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 12:30:39,781 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 12:30:39,781 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-01 12:30:39,781 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-04-01 12:30:39,782 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_init [2023-04-01 12:30:39,782 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_control [2023-04-01 12:30:39,782 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2023-04-01 12:30:39,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2023-04-01 12:30:39,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2023-04-01 12:30:39,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_read_bt_packet [2023-04-01 12:30:39,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_battery_voltage [2023-04-01 12:30:39,782 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts1 [2023-04-01 12:30:39,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_sonar_sensor [2023-04-01 12:30:39,782 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts2 [2023-04-01 12:30:39,782 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts3 [2023-04-01 12:30:39,783 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2023-04-01 12:30:39,783 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts3 [2023-04-01 12:30:39,783 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-04-01 12:30:39,783 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts2 [2023-04-01 12:30:39,783 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-04-01 12:30:39,783 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts1 [2023-04-01 12:30:39,783 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_schedule_jobs [2023-04-01 12:30:39,783 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_globals [2023-04-01 12:30:39,783 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2023-04-01 12:30:39,784 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2023-04-01 12:30:39,784 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2023-04-01 12:30:39,784 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_assert_i0 [2023-04-01 12:30:39,784 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_init [2023-04-01 12:30:39,784 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_final [2023-04-01 12:30:39,784 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2023-04-01 12:30:39,784 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 12:30:39,784 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2023-04-01 12:30:39,784 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2023-04-01 12:30:39,784 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2023-04-01 12:30:39,784 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2023-04-01 12:30:39,785 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2023-04-01 12:30:39,785 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2023-04-01 12:30:39,785 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2023-04-01 12:30:39,785 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2023-04-01 12:30:39,785 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_shared [2023-04-01 12:30:39,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_bt_data_logger [2023-04-01 12:30:39,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_sound_tone [2023-04-01 12:30:39,785 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2023-04-01 12:30:39,785 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2023-04-01 12:30:39,786 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 12:30:39,786 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 12:30:39,786 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 12:30:39,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 12:30:39,786 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_shared [2023-04-01 12:30:39,786 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_assert_i0 [2023-04-01 12:30:39,786 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2023-04-01 12:30:39,786 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2023-04-01 12:30:39,786 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2023-04-01 12:30:39,787 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-04-01 12:30:39,787 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-01 12:30:39,787 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2023-04-01 12:30:39,787 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 12:30:39,787 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-01 12:30:39,787 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-04-01 12:30:39,787 INFO L130 BoogieDeclarations]: Found specification of procedure balance_init [2023-04-01 12:30:39,787 INFO L130 BoogieDeclarations]: Found specification of procedure balance_control [2023-04-01 12:30:39,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-01 12:30:39,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 12:30:39,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 12:30:39,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 12:30:39,788 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2023-04-01 12:30:39,788 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2023-04-01 12:30:39,788 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2023-04-01 12:30:39,788 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2023-04-01 12:30:39,788 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2023-04-01 12:30:39,788 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2023-04-01 12:30:39,788 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2023-04-01 12:30:39,788 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2023-04-01 12:30:39,788 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2023-04-01 12:30:39,788 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2023-04-01 12:30:39,788 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2023-04-01 12:30:39,788 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2023-04-01 12:30:39,788 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2023-04-01 12:30:39,788 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_sound_tone [2023-04-01 12:30:39,788 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_read_bt_packet [2023-04-01 12:30:39,788 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_battery_voltage [2023-04-01 12:30:39,789 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2023-04-01 12:30:39,789 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_bt_data_logger [2023-04-01 12:30:39,789 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts1 [2023-04-01 12:30:39,789 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_sonar_sensor [2023-04-01 12:30:39,790 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts2 [2023-04-01 12:30:39,790 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts3 [2023-04-01 12:30:39,790 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2023-04-01 12:30:39,790 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts3 [2023-04-01 12:30:39,790 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-04-01 12:30:39,790 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts2 [2023-04-01 12:30:39,790 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-04-01 12:30:39,790 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts1 [2023-04-01 12:30:39,790 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_schedule_jobs [2023-04-01 12:30:39,790 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_globals [2023-04-01 12:30:39,790 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_init [2023-04-01 12:30:39,790 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_final [2023-04-01 12:30:39,790 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2023-04-01 12:30:39,790 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 12:30:39,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 12:30:39,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 12:30:39,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 12:30:40,204 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 12:30:40,249 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 12:30:51,039 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 12:30:51,162 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 12:30:51,163 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-01 12:30:51,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 12:30:51 BoogieIcfgContainer [2023-04-01 12:30:51,168 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 12:30:51,170 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 12:30:51,170 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 12:30:51,173 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 12:30:51,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 12:30:38" (1/3) ... [2023-04-01 12:30:51,173 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2954c375 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 12:30:51, skipping insertion in model container [2023-04-01 12:30:51,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:30:39" (2/3) ... [2023-04-01 12:30:51,174 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2954c375 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 12:30:51, skipping insertion in model container [2023-04-01 12:30:51,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 12:30:51" (3/3) ... [2023-04-01 12:30:51,175 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_aso.1.M4-2.c [2023-04-01 12:30:51,189 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 12:30:51,190 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 12:30:51,344 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 12:30:51,351 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;@6e94617f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 12:30:51,352 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 12:30:51,368 INFO L276 IsEmpty]: Start isEmpty. Operand has 2357 states, 1354 states have (on average 1.1957163958641064) internal successors, (1619), 1361 states have internal predecessors, (1619), 958 states have call successors, (958), 40 states have call predecessors, (958), 40 states have return successors, (958), 956 states have call predecessors, (958), 958 states have call successors, (958) [2023-04-01 12:30:51,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 932 [2023-04-01 12:30:51,415 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 12:30:51,416 INFO L195 NwaCegarLoop]: trace histogram [209, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 12:30:51,417 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 12:30:51,422 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 12:30:51,423 INFO L85 PathProgramCache]: Analyzing trace with hash 816346088, now seen corresponding path program 1 times [2023-04-01 12:30:51,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 12:30:51,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638587525] [2023-04-01 12:30:51,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 12:30:51,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms