/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M1-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 06:24:17,783 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 06:24:17,785 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 06:24:17,816 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 06:24:17,816 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 06:24:17,818 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 06:24:17,821 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 06:24:17,824 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 06:24:17,825 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 06:24:17,829 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 06:24:17,830 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 06:24:17,831 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 06:24:17,832 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 06:24:17,833 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 06:24:17,834 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 06:24:17,835 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 06:24:17,836 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 06:24:17,836 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 06:24:17,838 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 06:24:17,842 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 06:24:17,842 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 06:24:17,843 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 06:24:17,844 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 06:24:17,845 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 06:24:17,851 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 06:24:17,851 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 06:24:17,851 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 06:24:17,852 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 06:24:17,853 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 06:24:17,853 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 06:24:17,853 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 06:24:17,854 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 06:24:17,855 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 06:24:17,855 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 06:24:17,855 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 06:24:17,856 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 06:24:17,856 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 06:24:17,856 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 06:24:17,856 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 06:24:17,857 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 06:24:17,857 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 06:24:17,858 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 06:24:17,882 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 06:24:17,882 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 06:24:17,883 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 06:24:17,883 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 06:24:17,883 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 06:24:17,884 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 06:24:17,884 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 06:24:17,884 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 06:24:17,884 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 06:24:17,884 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 06:24:17,884 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 06:24:17,885 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 06:24:17,885 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 06:24:17,885 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 06:24:17,885 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 06:24:17,885 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 06:24:17,885 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 06:24:17,885 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 06:24:17,886 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 06:24:17,886 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 06:24:17,886 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 06:24:17,886 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 06:24:17,886 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 06:24:17,886 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 06:24:17,886 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 06:24:17,887 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 06:24:17,887 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 06:24:17,887 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 06:24:17,887 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 06:24:17,887 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 06:24:17,887 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 06:24:17,888 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 06:24:17,888 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 06:24:17,888 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 06:24:17,888 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 06:24:17,888 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 06:24:17,888 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 06:24:17,888 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 06:24:17,888 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 06:24:17,888 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 06:24:17,889 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 06:24:17,889 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-01 06:24:18,082 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 06:24:18,096 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 06:24:18,098 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 06:24:18,098 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 06:24:18,099 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 06:24:18,100 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M1-2.c [2023-04-01 06:24:19,126 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 06:24:19,352 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 06:24:19,353 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M1-2.c [2023-04-01 06:24:19,368 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f0f962b4/8a725cec357548f994ac4b104eb634ee/FLAG94dd7afd5 [2023-04-01 06:24:19,382 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f0f962b4/8a725cec357548f994ac4b104eb634ee [2023-04-01 06:24:19,384 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 06:24:19,385 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 06:24:19,386 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 06:24:19,386 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 06:24:19,389 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 06:24:19,390 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 06:24:19" (1/1) ... [2023-04-01 06:24:19,390 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51089f69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:24:19, skipping insertion in model container [2023-04-01 06:24:19,390 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 06:24:19" (1/1) ... [2023-04-01 06:24:19,398 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 06:24:19,447 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 06:24:19,571 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.M1-2.c[1719,1732] [2023-04-01 06:24:19,867 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 06:24:19,879 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 06:24:19,888 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.M1-2.c[1719,1732] [2023-04-01 06:24:20,086 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 06:24:20,105 INFO L208 MainTranslator]: Completed translation [2023-04-01 06:24:20,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:24:20 WrapperNode [2023-04-01 06:24:20,105 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 06:24:20,106 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 06:24:20,106 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 06:24:20,106 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 06:24:20,115 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:24:20" (1/1) ... [2023-04-01 06:24:20,115 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:24:20" (1/1) ... [2023-04-01 06:24:20,178 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:24:20" (1/1) ... [2023-04-01 06:24:20,178 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:24:20" (1/1) ... [2023-04-01 06:24:20,301 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:24:20" (1/1) ... [2023-04-01 06:24:20,318 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:24:20" (1/1) ... [2023-04-01 06:24:20,359 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:24:20" (1/1) ... [2023-04-01 06:24:20,374 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:24:20" (1/1) ... [2023-04-01 06:24:20,406 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 06:24:20,407 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 06:24:20,407 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 06:24:20,408 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 06:24:20,409 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:24:20" (1/1) ... [2023-04-01 06:24:20,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 06:24:20,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 06:24:20,450 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 06:24:20,490 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 06:24:20,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 06:24:20,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 06:24:20,507 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 06:24:20,507 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-01 06:24:20,507 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-04-01 06:24:20,507 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_init [2023-04-01 06:24:20,507 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_control [2023-04-01 06:24:20,508 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2023-04-01 06:24:20,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2023-04-01 06:24:20,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2023-04-01 06:24:20,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_read_bt_packet [2023-04-01 06:24:20,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_battery_voltage [2023-04-01 06:24:20,508 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts1 [2023-04-01 06:24:20,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_sonar_sensor [2023-04-01 06:24:20,508 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts2 [2023-04-01 06:24:20,508 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts3 [2023-04-01 06:24:20,508 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2023-04-01 06:24:20,508 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts3 [2023-04-01 06:24:20,508 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-04-01 06:24:20,508 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts2 [2023-04-01 06:24:20,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-04-01 06:24:20,509 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts1 [2023-04-01 06:24:20,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_schedule_jobs [2023-04-01 06:24:20,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_globals [2023-04-01 06:24:20,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2023-04-01 06:24:20,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2023-04-01 06:24:20,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2023-04-01 06:24:20,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_assert_i0 [2023-04-01 06:24:20,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_init [2023-04-01 06:24:20,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_final [2023-04-01 06:24:20,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2023-04-01 06:24:20,509 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 06:24:20,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2023-04-01 06:24:20,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2023-04-01 06:24:20,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2023-04-01 06:24:20,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2023-04-01 06:24:20,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2023-04-01 06:24:20,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2023-04-01 06:24:20,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2023-04-01 06:24:20,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2023-04-01 06:24:20,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_shared [2023-04-01 06:24:20,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_bt_data_logger [2023-04-01 06:24:20,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_sound_tone [2023-04-01 06:24:20,511 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2023-04-01 06:24:20,511 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2023-04-01 06:24:20,512 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 06:24:20,512 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 06:24:20,512 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 06:24:20,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 06:24:20,512 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_shared [2023-04-01 06:24:20,512 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_assert_i0 [2023-04-01 06:24:20,512 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2023-04-01 06:24:20,513 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2023-04-01 06:24:20,513 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2023-04-01 06:24:20,513 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-04-01 06:24:20,513 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-01 06:24:20,513 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2023-04-01 06:24:20,513 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 06:24:20,513 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-01 06:24:20,513 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-04-01 06:24:20,513 INFO L130 BoogieDeclarations]: Found specification of procedure balance_init [2023-04-01 06:24:20,514 INFO L130 BoogieDeclarations]: Found specification of procedure balance_control [2023-04-01 06:24:20,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-01 06:24:20,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 06:24:20,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 06:24:20,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 06:24:20,514 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2023-04-01 06:24:20,514 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2023-04-01 06:24:20,514 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2023-04-01 06:24:20,514 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2023-04-01 06:24:20,514 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2023-04-01 06:24:20,514 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2023-04-01 06:24:20,514 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2023-04-01 06:24:20,514 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2023-04-01 06:24:20,514 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2023-04-01 06:24:20,515 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2023-04-01 06:24:20,515 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2023-04-01 06:24:20,515 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2023-04-01 06:24:20,515 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2023-04-01 06:24:20,515 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_sound_tone [2023-04-01 06:24:20,515 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_read_bt_packet [2023-04-01 06:24:20,515 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_battery_voltage [2023-04-01 06:24:20,516 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2023-04-01 06:24:20,516 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_bt_data_logger [2023-04-01 06:24:20,516 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts1 [2023-04-01 06:24:20,516 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_sonar_sensor [2023-04-01 06:24:20,516 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts2 [2023-04-01 06:24:20,517 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts3 [2023-04-01 06:24:20,517 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2023-04-01 06:24:20,517 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts3 [2023-04-01 06:24:20,517 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-04-01 06:24:20,517 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts2 [2023-04-01 06:24:20,517 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-04-01 06:24:20,517 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts1 [2023-04-01 06:24:20,517 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_schedule_jobs [2023-04-01 06:24:20,517 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_globals [2023-04-01 06:24:20,517 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_init [2023-04-01 06:24:20,517 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_final [2023-04-01 06:24:20,518 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2023-04-01 06:24:20,518 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 06:24:20,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 06:24:20,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 06:24:20,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 06:24:20,947 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 06:24:20,949 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 06:24:34,173 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 06:24:34,298 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 06:24:34,299 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-01 06:24:34,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 06:24:34 BoogieIcfgContainer [2023-04-01 06:24:34,303 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 06:24:34,306 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 06:24:34,306 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 06:24:34,308 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 06:24:34,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 06:24:19" (1/3) ... [2023-04-01 06:24:34,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f56750e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 06:24:34, skipping insertion in model container [2023-04-01 06:24:34,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:24:20" (2/3) ... [2023-04-01 06:24:34,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f56750e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 06:24:34, skipping insertion in model container [2023-04-01 06:24:34,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 06:24:34" (3/3) ... [2023-04-01 06:24:34,310 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_aso.1.M1-2.c [2023-04-01 06:24:34,323 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 06:24:34,324 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 06:24:34,409 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 06:24:34,415 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;@6797adbf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 06:24:34,415 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 06:24:34,427 INFO L276 IsEmpty]: Start isEmpty. Operand has 2355 states, 1353 states have (on average 1.195861049519586) internal successors, (1618), 1360 states have internal predecessors, (1618), 957 states have call successors, (957), 40 states have call predecessors, (957), 40 states have return successors, (957), 955 states have call predecessors, (957), 957 states have call successors, (957) [2023-04-01 06:24:34,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 932 [2023-04-01 06:24:34,474 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 06:24:34,475 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 06:24:34,476 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 06:24:34,480 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 06:24:34,481 INFO L85 PathProgramCache]: Analyzing trace with hash -591088362, now seen corresponding path program 1 times [2023-04-01 06:24:34,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 06:24:34,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89516026] [2023-04-01 06:24:34,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 06:24:34,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms