/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M1-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 15:36:40,731 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 15:36:40,735 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 15:36:40,792 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 15:36:40,792 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 15:36:40,797 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 15:36:40,800 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 15:36:40,820 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 15:36:40,828 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 15:36:40,834 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 15:36:40,835 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 15:36:40,839 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 15:36:40,839 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 15:36:40,841 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 15:36:40,843 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 15:36:40,847 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 15:36:40,848 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 15:36:40,850 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 15:36:40,853 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 15:36:40,858 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 15:36:40,862 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 15:36:40,863 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 15:36:40,865 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 15:36:40,868 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 15:36:40,877 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 15:36:40,877 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 15:36:40,878 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 15:36:40,880 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 15:36:40,881 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 15:36:40,882 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 15:36:40,882 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 15:36:40,883 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 15:36:40,885 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 15:36:40,886 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 15:36:40,887 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 15:36:40,887 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 15:36:40,888 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 15:36:40,888 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 15:36:40,888 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 15:36:40,889 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 15:36:40,890 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 15:36:40,891 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 15:36:40,943 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 15:36:40,943 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 15:36:40,944 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 15:36:40,944 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 15:36:40,946 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 15:36:40,946 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 15:36:40,949 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 15:36:40,949 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 15:36:40,949 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 15:36:40,949 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 15:36:40,950 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 15:36:40,951 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 15:36:40,951 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 15:36:40,951 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 15:36:40,951 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 15:36:40,951 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 15:36:40,952 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 15:36:40,952 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 15:36:40,952 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 15:36:40,952 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 15:36:40,953 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 15:36:40,953 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 15:36:40,953 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 15:36:40,953 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 15:36:40,953 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 15:36:40,953 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 15:36:40,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 15:36:40,954 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 15:36:40,954 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 15:36:40,954 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 15:36:40,954 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 15:36:40,955 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 15:36:40,955 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 15:36:40,955 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 15:36:41,325 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 15:36:41,362 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 15:36:41,366 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 15:36:41,368 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 15:36:41,368 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 15:36:41,370 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M1-2.c [2022-10-16 15:36:41,457 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36502f4ac/693df419d21849a889324a72c5f7c6ac/FLAG8e0dd0f45 [2022-10-16 15:36:42,334 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 15:36:42,335 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M1-2.c [2022-10-16 15:36:42,357 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36502f4ac/693df419d21849a889324a72c5f7c6ac/FLAG8e0dd0f45 [2022-10-16 15:36:42,436 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36502f4ac/693df419d21849a889324a72c5f7c6ac [2022-10-16 15:36:42,439 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 15:36:42,445 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 15:36:42,448 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 15:36:42,449 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 15:36:42,453 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 15:36:42,454 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:36:42" (1/1) ... [2022-10-16 15:36:42,456 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ee55c4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:36:42, skipping insertion in model container [2022-10-16 15:36:42,456 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:36:42" (1/1) ... [2022-10-16 15:36:42,464 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 15:36:42,552 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 15:36:42,774 WARN L230 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.2.M1-2.c[1974,1987] [2022-10-16 15:36:43,385 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 15:36:43,398 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 15:36:43,414 WARN L230 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.2.M1-2.c[1974,1987] [2022-10-16 15:36:43,723 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 15:36:43,755 INFO L208 MainTranslator]: Completed translation [2022-10-16 15:36:43,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:36:43 WrapperNode [2022-10-16 15:36:43,755 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 15:36:43,757 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 15:36:43,757 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 15:36:43,757 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 15:36:43,766 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:36:43" (1/1) ... [2022-10-16 15:36:43,881 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:36:43" (1/1) ... [2022-10-16 15:36:44,224 INFO L138 Inliner]: procedures = 61, calls = 3158, calls flagged for inlining = 20, calls inlined = 20, statements flattened = 6026 [2022-10-16 15:36:44,225 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 15:36:44,226 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 15:36:44,226 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 15:36:44,226 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 15:36:44,237 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:36:43" (1/1) ... [2022-10-16 15:36:44,238 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:36:43" (1/1) ... [2022-10-16 15:36:44,280 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:36:43" (1/1) ... [2022-10-16 15:36:44,280 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:36:43" (1/1) ... [2022-10-16 15:36:44,456 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:36:43" (1/1) ... [2022-10-16 15:36:44,623 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:36:43" (1/1) ... [2022-10-16 15:36:44,651 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:36:43" (1/1) ... [2022-10-16 15:36:44,673 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:36:43" (1/1) ... [2022-10-16 15:36:44,707 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 15:36:44,709 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 15:36:44,710 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 15:36:44,710 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 15:36:44,711 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:36:43" (1/1) ... [2022-10-16 15:36:44,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 15:36:44,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 15:36:44,752 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) [2022-10-16 15:36:44,774 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 [2022-10-16 15:36:44,820 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 15:36:44,821 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2022-10-16 15:36:44,821 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2022-10-16 15:36:44,821 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-10-16 15:36:44,822 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-10-16 15:36:44,822 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-10-16 15:36:44,822 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-10-16 15:36:44,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 15:36:44,822 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-10-16 15:36:44,822 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-10-16 15:36:44,822 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-10-16 15:36:44,823 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-10-16 15:36:44,823 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-10-16 15:36:44,823 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-10-16 15:36:44,823 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 15:36:44,823 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-10-16 15:36:44,823 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-10-16 15:36:44,823 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-10-16 15:36:44,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-10-16 15:36:44,824 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2022-10-16 15:36:44,824 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2022-10-16 15:36:44,824 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-10-16 15:36:44,824 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-10-16 15:36:44,824 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-10-16 15:36:44,824 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-10-16 15:36:44,824 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-10-16 15:36:44,825 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-10-16 15:36:44,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 15:36:44,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 15:36:44,825 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-10-16 15:36:44,825 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-10-16 15:36:44,825 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-10-16 15:36:44,825 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-10-16 15:36:44,826 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2022-10-16 15:36:44,826 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2022-10-16 15:36:44,826 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2022-10-16 15:36:44,826 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2022-10-16 15:36:44,826 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-16 15:36:44,826 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-16 15:36:44,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 15:36:44,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 15:36:44,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 15:36:44,827 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-10-16 15:36:44,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-10-16 15:36:44,827 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-10-16 15:36:44,827 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-10-16 15:36:44,827 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-10-16 15:36:44,827 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-10-16 15:36:44,827 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2022-10-16 15:36:44,828 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2022-10-16 15:36:45,566 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 15:36:45,568 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 15:36:56,188 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 15:36:56,222 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 15:36:56,223 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-16 15:36:56,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:36:56 BoogieIcfgContainer [2022-10-16 15:36:56,230 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 15:36:56,233 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 15:36:56,233 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 15:36:56,237 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 15:36:56,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 03:36:42" (1/3) ... [2022-10-16 15:36:56,238 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d188be7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:36:56, skipping insertion in model container [2022-10-16 15:36:56,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:36:43" (2/3) ... [2022-10-16 15:36:56,240 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d188be7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:36:56, skipping insertion in model container [2022-10-16 15:36:56,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:36:56" (3/3) ... [2022-10-16 15:36:56,245 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_aso.2.M1-2.c [2022-10-16 15:36:56,269 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 15:36:56,269 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-10-16 15:36:56,378 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 15:36:56,387 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;@1cfd0cff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 15:36:56,387 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-10-16 15:36:56,407 INFO L276 IsEmpty]: Start isEmpty. Operand has 2394 states, 1394 states have (on average 1.2073170731707317) internal successors, (1683), 1409 states have internal predecessors, (1683), 966 states have call successors, (966), 21 states have call predecessors, (966), 21 states have return successors, (966), 964 states have call predecessors, (966), 966 states have call successors, (966) [2022-10-16 15:36:56,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1371 [2022-10-16 15:36:56,546 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:36:56,554 INFO L195 NwaCegarLoop]: trace histogram [208, 208, 208, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 15:36:56,555 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __startrek_entry_pt_OSEK_Task_ts1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__startrek_entry_pt_OSEK_Task_ts1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, __startrek_entry_pt_OSEK_Task_ts1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-10-16 15:36:56,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:36:56,565 INFO L85 PathProgramCache]: Analyzing trace with hash 283155314, now seen corresponding path program 1 times [2022-10-16 15:36:56,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:36:56,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502315933] [2022-10-16 15:36:56,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:36:56,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms