/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/rekcba_nxt.2.M4-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 06:23:52,746 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 06:23:52,748 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 06:23:52,766 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 06:23:52,767 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 06:23:52,767 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 06:23:52,768 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 06:23:52,769 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 06:23:52,770 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 06:23:52,771 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 06:23:52,772 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 06:23:52,772 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 06:23:52,773 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 06:23:52,773 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 06:23:52,774 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 06:23:52,775 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 06:23:52,775 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 06:23:52,779 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 06:23:52,782 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 06:23:52,784 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 06:23:52,785 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 06:23:52,789 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 06:23:52,789 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 06:23:52,790 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 06:23:52,792 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 06:23:52,792 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 06:23:52,792 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 06:23:52,793 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 06:23:52,793 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 06:23:52,794 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 06:23:52,794 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 06:23:52,794 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 06:23:52,795 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 06:23:52,795 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 06:23:52,796 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 06:23:52,796 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 06:23:52,796 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 06:23:52,796 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 06:23:52,797 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 06:23:52,797 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 06:23:52,797 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 06:23:52,802 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 06:23:52,830 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 06:23:52,830 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 06:23:52,830 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 06:23:52,831 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 06:23:52,831 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 06:23:52,831 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 06:23:52,831 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 06:23:52,831 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 06:23:52,831 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 06:23:52,831 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 06:23:52,832 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 06:23:52,832 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 06:23:52,832 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 06:23:52,832 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 06:23:52,832 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 06:23:52,832 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 06:23:52,832 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 06:23:52,832 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 06:23:52,833 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 06:23:52,833 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 06:23:52,833 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 06:23:52,833 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 06:23:52,833 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 06:23:52,833 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 06:23:52,833 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 06:23:52,833 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 06:23:52,833 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 06:23:52,833 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 06:23:52,834 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 06:23:52,834 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 06:23:52,834 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 06:23:52,834 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 06:23:52,834 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 06:23:52,834 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 06:23:52,834 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 06:23:52,834 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 06:23:52,834 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 06:23:52,834 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 06:23:52,835 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 06:23:52,835 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 06:23:52,835 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 06:23:52,835 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-01 06:23:53,038 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 06:23:53,058 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 06:23:53,059 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 06:23:53,060 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 06:23:53,061 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 06:23:53,062 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M4-1.c [2023-04-01 06:23:54,087 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 06:23:54,486 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 06:23:54,487 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M4-1.c [2023-04-01 06:23:54,518 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b66b219eb/c167dd89bc36474587fd4015d50adbba/FLAGd84a02cb6 [2023-04-01 06:23:54,533 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b66b219eb/c167dd89bc36474587fd4015d50adbba [2023-04-01 06:23:54,535 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 06:23:54,537 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 06:23:54,537 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 06:23:54,538 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 06:23:54,541 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 06:23:54,542 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 06:23:54" (1/1) ... [2023-04-01 06:23:54,543 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@404842a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:23:54, skipping insertion in model container [2023-04-01 06:23:54,543 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 06:23:54" (1/1) ... [2023-04-01 06:23:54,549 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 06:23:54,669 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 06:23:54,899 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/rekcba_nxt.2.M4-1.c[2195,2208] [2023-04-01 06:23:55,801 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 06:23:55,822 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 06:23:55,838 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/rekcba_nxt.2.M4-1.c[2195,2208] [2023-04-01 06:23:56,448 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 06:23:56,468 INFO L208 MainTranslator]: Completed translation [2023-04-01 06:23:56,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:23:56 WrapperNode [2023-04-01 06:23:56,470 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 06:23:56,471 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 06:23:56,471 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 06:23:56,471 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 06:23:56,479 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:23:56" (1/1) ... [2023-04-01 06:23:56,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:23:56" (1/1) ... [2023-04-01 06:23:56,877 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:23:56" (1/1) ... [2023-04-01 06:23:56,878 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:23:56" (1/1) ... [2023-04-01 06:23:57,425 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:23:56" (1/1) ... [2023-04-01 06:23:57,493 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:23:56" (1/1) ... [2023-04-01 06:23:57,567 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:23:56" (1/1) ... [2023-04-01 06:23:57,627 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:23:56" (1/1) ... [2023-04-01 06:23:57,751 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 06:23:57,752 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 06:23:57,753 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 06:23:57,753 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 06:23:57,754 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:23:56" (1/1) ... [2023-04-01 06:23:57,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 06:23:57,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 06:23:57,790 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 06:23:57,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 06:23:57,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 06:23:57,847 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 06:23:57,847 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-01 06:23:57,848 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-04-01 06:23:57,848 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_init [2023-04-01 06:23:57,848 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_control [2023-04-01 06:23:57,848 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2023-04-01 06:23:57,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2023-04-01 06:23:57,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2023-04-01 06:23:57,821 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 06:23:57,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_read_bt_packet [2023-04-01 06:23:57,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_battery_voltage [2023-04-01 06:23:57,849 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts1 [2023-04-01 06:23:57,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_sonar_sensor [2023-04-01 06:23:57,849 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts2 [2023-04-01 06:23:57,850 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-04-01 06:23:57,850 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts2 [2023-04-01 06:23:57,850 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-04-01 06:23:57,850 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts1 [2023-04-01 06:23:57,850 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_Background [2023-04-01 06:23:57,850 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2023-04-01 06:23:57,851 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_Background [2023-04-01 06:23:57,851 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_schedule_jobs [2023-04-01 06:23:57,851 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_globals [2023-04-01 06:23:57,851 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2023-04-01 06:23:57,851 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2023-04-01 06:23:57,851 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2023-04-01 06:23:57,851 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_assert_i0 [2023-04-01 06:23:57,851 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_check_assumptions [2023-04-01 06:23:57,851 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_init [2023-04-01 06:23:57,851 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_final [2023-04-01 06:23:57,851 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_check_assertions [2023-04-01 06:23:57,851 INFO L138 BoogieDeclarations]: Found implementation of procedure __main [2023-04-01 06:23:57,851 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 06:23:57,851 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2023-04-01 06:23:57,852 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2023-04-01 06:23:57,852 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2023-04-01 06:23:57,852 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2023-04-01 06:23:57,852 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_shared [2023-04-01 06:23:57,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_bt_data_logger [2023-04-01 06:23:57,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_sound_tone [2023-04-01 06:23:57,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_status_monitor [2023-04-01 06:23:57,852 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2023-04-01 06:23:57,853 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2023-04-01 06:23:57,853 INFO L138 BoogieDeclarations]: Found implementation of procedure write_mode_on_lcd [2023-04-01 06:23:57,853 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 06:23:57,853 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 06:23:57,853 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 06:23:57,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 06:23:57,854 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_shared [2023-04-01 06:23:57,854 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_assert_i0 [2023-04-01 06:23:57,854 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2023-04-01 06:23:57,854 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2023-04-01 06:23:57,854 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2023-04-01 06:23:57,854 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-01 06:23:57,854 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2023-04-01 06:23:57,855 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 06:23:57,855 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-01 06:23:57,855 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-04-01 06:23:57,855 INFO L130 BoogieDeclarations]: Found specification of procedure balance_init [2023-04-01 06:23:57,855 INFO L130 BoogieDeclarations]: Found specification of procedure balance_control [2023-04-01 06:23:57,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-01 06:23:57,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 06:23:57,855 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 06:23:57,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 06:23:57,855 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2023-04-01 06:23:57,855 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-04-01 06:23:57,856 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2023-04-01 06:23:57,856 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2023-04-01 06:23:57,856 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2023-04-01 06:23:57,856 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2023-04-01 06:23:57,856 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2023-04-01 06:23:57,856 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2023-04-01 06:23:57,856 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2023-04-01 06:23:57,856 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2023-04-01 06:23:57,856 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_sound_tone [2023-04-01 06:23:57,856 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_status_monitor [2023-04-01 06:23:57,856 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_read_bt_packet [2023-04-01 06:23:57,856 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_battery_voltage [2023-04-01 06:23:57,856 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2023-04-01 06:23:57,857 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_bt_data_logger [2023-04-01 06:23:57,857 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts1 [2023-04-01 06:23:57,857 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_sonar_sensor [2023-04-01 06:23:57,857 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts2 [2023-04-01 06:23:57,857 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-04-01 06:23:57,857 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts2 [2023-04-01 06:23:57,857 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-04-01 06:23:57,857 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts1 [2023-04-01 06:23:57,857 INFO L130 BoogieDeclarations]: Found specification of procedure write_mode_on_lcd [2023-04-01 06:23:57,858 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_Background [2023-04-01 06:23:57,858 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2023-04-01 06:23:57,858 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_Background [2023-04-01 06:23:57,858 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_schedule_jobs [2023-04-01 06:23:57,858 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_globals [2023-04-01 06:23:57,858 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_check_assumptions [2023-04-01 06:23:57,858 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_init [2023-04-01 06:23:57,858 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_final [2023-04-01 06:23:57,858 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_check_assertions [2023-04-01 06:23:57,859 INFO L130 BoogieDeclarations]: Found specification of procedure __main [2023-04-01 06:23:57,859 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 06:23:57,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 06:23:57,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 06:23:57,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 06:23:59,311 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 06:23:59,313 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 06:24:31,947 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 06:24:32,512 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 06:24:32,512 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-01 06:24:32,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 06:24:32 BoogieIcfgContainer [2023-04-01 06:24:32,521 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 06:24:32,524 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 06:24:32,524 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 06:24:32,526 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 06:24:32,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 06:23:54" (1/3) ... [2023-04-01 06:24:32,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19975a15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 06:24:32, skipping insertion in model container [2023-04-01 06:24:32,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:23:56" (2/3) ... [2023-04-01 06:24:32,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19975a15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 06:24:32, skipping insertion in model container [2023-04-01 06:24:32,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 06:24:32" (3/3) ... [2023-04-01 06:24:32,528 INFO L112 eAbstractionObserver]: Analyzing ICFG rekcba_nxt.2.M4-1.c [2023-04-01 06:24:32,540 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 06:24:32,540 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 06:24:32,741 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 06:24:32,748 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;@6e2b6185, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 06:24:32,749 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 06:24:32,782 INFO L276 IsEmpty]: Start isEmpty. Operand has 12276 states, 7981 states have (on average 1.3147475253727603) internal successors, (10493), 8096 states have internal predecessors, (10493), 4250 states have call successors, (4250), 40 states have call predecessors, (4250), 40 states have return successors, (4250), 4247 states have call predecessors, (4250), 4250 states have call successors, (4250) [2023-04-01 06:24:33,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3962 [2023-04-01 06:24:33,102 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 06:24:33,104 INFO L195 NwaCegarLoop]: trace histogram [337, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 06:24:33,105 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 06:24:33,109 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 06:24:33,111 INFO L85 PathProgramCache]: Analyzing trace with hash 829805599, now seen corresponding path program 1 times [2023-04-01 06:24:33,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 06:24:33,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227379329] [2023-04-01 06:24:33,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 06:24:33,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms