/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/rekcba_aso.3.M1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 15:30:14,816 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 15:30:14,824 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 15:30:14,877 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 15:30:14,878 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 15:30:14,883 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 15:30:14,888 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 15:30:14,911 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 15:30:14,913 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 15:30:14,919 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 15:30:14,920 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 15:30:14,923 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 15:30:14,924 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 15:30:14,927 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 15:30:14,929 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 15:30:14,935 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 15:30:14,936 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 15:30:14,936 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 15:30:14,938 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 15:30:14,949 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 15:30:14,951 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 15:30:14,953 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 15:30:14,958 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 15:30:14,960 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 15:30:14,964 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 15:30:14,968 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 15:30:14,969 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 15:30:14,970 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 15:30:14,971 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 15:30:14,972 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 15:30:14,972 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 15:30:14,973 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 15:30:14,973 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 15:30:14,973 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 15:30:14,974 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 15:30:14,975 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 15:30:14,976 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 15:30:15,009 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 15:30:15,009 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 15:30:15,009 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 15:30:15,010 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 15:30:15,011 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 15:30:15,011 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 15:30:15,012 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 15:30:15,012 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 15:30:15,012 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 15:30:15,012 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 15:30:15,013 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 15:30:15,013 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 15:30:15,013 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 15:30:15,013 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 15:30:15,013 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 15:30:15,014 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 15:30:15,014 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 15:30:15,014 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 15:30:15,014 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 15:30:15,014 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 15:30:15,015 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 15:30:15,015 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 15:30:15,015 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 15:30:15,015 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 15:30:15,015 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 15:30:15,016 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 15:30:15,016 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 15:30:15,016 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 15:30:15,016 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 15:30:15,016 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 15:30:15,017 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 15:30:15,017 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 15:30:15,017 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 15:30:15,017 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 15:30:15,413 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 15:30:15,444 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 15:30:15,447 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 15:30:15,448 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 15:30:15,449 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 15:30:15,451 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekcba_aso.3.M1.c [2022-10-16 15:30:15,538 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59cd89cbf/a560f386067946ed9726d2cef4f649a4/FLAG550b904f3 [2022-10-16 15:30:16,436 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 15:30:16,436 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_aso.3.M1.c [2022-10-16 15:30:16,495 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59cd89cbf/a560f386067946ed9726d2cef4f649a4/FLAG550b904f3 [2022-10-16 15:30:16,577 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59cd89cbf/a560f386067946ed9726d2cef4f649a4 [2022-10-16 15:30:16,581 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 15:30:16,589 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 15:30:16,593 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 15:30:16,593 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 15:30:16,598 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 15:30:16,600 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:30:16" (1/1) ... [2022-10-16 15:30:16,602 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64080fe7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:30:16, skipping insertion in model container [2022-10-16 15:30:16,602 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:30:16" (1/1) ... [2022-10-16 15:30:16,613 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 15:30:16,729 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 15:30:17,009 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/rekcba_aso.3.M1.c[2061,2074] [2022-10-16 15:30:17,652 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 15:30:17,679 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 15:30:17,698 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/rekcba_aso.3.M1.c[2061,2074] [2022-10-16 15:30:17,942 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 15:30:17,979 INFO L208 MainTranslator]: Completed translation [2022-10-16 15:30:17,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:30:17 WrapperNode [2022-10-16 15:30:17,980 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 15:30:17,981 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 15:30:17,982 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 15:30:17,982 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 15:30:17,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:30:17" (1/1) ... [2022-10-16 15:30:18,084 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:30:17" (1/1) ... [2022-10-16 15:30:18,437 INFO L138 Inliner]: procedures = 72, calls = 2683, calls flagged for inlining = 27, calls inlined = 27, statements flattened = 5684 [2022-10-16 15:30:18,438 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 15:30:18,439 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 15:30:18,439 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 15:30:18,439 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 15:30:18,468 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:30:17" (1/1) ... [2022-10-16 15:30:18,469 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:30:17" (1/1) ... [2022-10-16 15:30:18,544 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:30:17" (1/1) ... [2022-10-16 15:30:18,544 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:30:17" (1/1) ... [2022-10-16 15:30:18,758 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:30:17" (1/1) ... [2022-10-16 15:30:18,797 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:30:17" (1/1) ... [2022-10-16 15:30:18,822 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:30:17" (1/1) ... [2022-10-16 15:30:18,846 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:30:17" (1/1) ... [2022-10-16 15:30:18,881 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 15:30:18,883 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 15:30:18,883 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 15:30:18,884 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 15:30:18,885 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:30:17" (1/1) ... [2022-10-16 15:30:18,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 15:30:18,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 15:30:18,930 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 15:30:18,954 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 15:30:19,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 15:30:19,002 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2022-10-16 15:30:19,002 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2022-10-16 15:30:19,002 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-10-16 15:30:19,002 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-10-16 15:30:19,002 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-10-16 15:30:19,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-10-16 15:30:19,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 15:30:19,003 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-10-16 15:30:19,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-10-16 15:30:19,003 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-10-16 15:30:19,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-10-16 15:30:19,004 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-10-16 15:30:19,004 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-10-16 15:30:19,004 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-10-16 15:30:19,004 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-10-16 15:30:19,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 15:30:19,004 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-10-16 15:30:19,005 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-10-16 15:30:19,005 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_version [2022-10-16 15:30:19,005 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_version [2022-10-16 15:30:19,005 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-10-16 15:30:19,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-10-16 15:30:19,005 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2022-10-16 15:30:19,006 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2022-10-16 15:30:19,006 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-10-16 15:30:19,006 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-10-16 15:30:19,006 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-10-16 15:30:19,006 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-10-16 15:30:19,006 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_version [2022-10-16 15:30:19,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_version [2022-10-16 15:30:19,007 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-10-16 15:30:19,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-10-16 15:30:19,007 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-10-16 15:30:19,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-10-16 15:30:19,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 15:30:19,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 15:30:19,008 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-10-16 15:30:19,008 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-10-16 15:30:19,008 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-10-16 15:30:19,008 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-10-16 15:30:19,008 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2022-10-16 15:30:19,009 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2022-10-16 15:30:19,009 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2022-10-16 15:30:19,009 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2022-10-16 15:30:19,009 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-16 15:30:19,009 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-16 15:30:19,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 15:30:19,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 15:30:19,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 15:30:19,011 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-10-16 15:30:19,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-10-16 15:30:19,011 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-10-16 15:30:19,011 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-10-16 15:30:19,012 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-10-16 15:30:19,012 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-10-16 15:30:19,013 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2022-10-16 15:30:19,013 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2022-10-16 15:30:19,604 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 15:30:19,607 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 15:30:31,880 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 15:30:31,901 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 15:30:31,901 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-16 15:30:31,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:30:31 BoogieIcfgContainer [2022-10-16 15:30:31,907 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 15:30:31,910 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 15:30:31,910 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 15:30:31,914 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 15:30:31,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 03:30:16" (1/3) ... [2022-10-16 15:30:31,915 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65c6c1ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:30:31, skipping insertion in model container [2022-10-16 15:30:31,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:30:17" (2/3) ... [2022-10-16 15:30:31,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65c6c1ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:30:31, skipping insertion in model container [2022-10-16 15:30:31,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:30:31" (3/3) ... [2022-10-16 15:30:31,918 INFO L112 eAbstractionObserver]: Analyzing ICFG rekcba_aso.3.M1.c [2022-10-16 15:30:31,942 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 15:30:31,942 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 70 error locations. [2022-10-16 15:30:32,048 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 15:30:32,057 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;@5abb4184, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 15:30:32,058 INFO L358 AbstractCegarLoop]: Starting to check reachability of 70 error locations. [2022-10-16 15:30:32,072 INFO L276 IsEmpty]: Start isEmpty. Operand has 1789 states, 1093 states have (on average 1.302836230558097) internal successors, (1424), 1194 states have internal predecessors, (1424), 600 states have call successors, (600), 25 states have call predecessors, (600), 25 states have return successors, (600), 598 states have call predecessors, (600), 600 states have call successors, (600) [2022-10-16 15:30:32,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-10-16 15:30:32,084 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:30:32,085 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 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 15:30:32,086 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__startrek_entry_pt_OSEK_Task_ts1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, __startrek_entry_pt_OSEK_Task_ts1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 68 more)] === [2022-10-16 15:30:32,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:30:32,093 INFO L85 PathProgramCache]: Analyzing trace with hash 2113275040, now seen corresponding path program 1 times [2022-10-16 15:30:32,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:30:32,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508168047] [2022-10-16 15:30:32,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:30:32,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:30:32,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:30:33,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 15:30:33,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:30:33,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 15:30:33,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:30:33,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 15:30:33,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:30:33,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-16 15:30:33,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:30:33,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-16 15:30:33,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:30:33,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 15:30:33,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:30:33,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-16 15:30:33,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:30:33,166 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-10-16 15:30:33,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:30:33,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508168047] [2022-10-16 15:30:33,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508168047] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:30:33,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 15:30:33,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 15:30:33,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308367733] [2022-10-16 15:30:33,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:30:33,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-16 15:30:33,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:30:33,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-16 15:30:33,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 15:30:33,237 INFO L87 Difference]: Start difference. First operand has 1789 states, 1093 states have (on average 1.302836230558097) internal successors, (1424), 1194 states have internal predecessors, (1424), 600 states have call successors, (600), 25 states have call predecessors, (600), 25 states have return successors, (600), 598 states have call predecessors, (600), 600 states have call successors, (600) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-16 15:30:33,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:30:33,526 INFO L93 Difference]: Finished difference Result 3517 states and 5814 transitions. [2022-10-16 15:30:33,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-16 15:30:33,529 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) Word has length 47 [2022-10-16 15:30:33,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:30:33,560 INFO L225 Difference]: With dead ends: 3517 [2022-10-16 15:30:33,560 INFO L226 Difference]: Without dead ends: 1247 [2022-10-16 15:30:33,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 15:30:33,597 INFO L413 NwaCegarLoop]: 2565 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2565 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 15:30:33,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2565 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 15:30:33,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1247 states. [2022-10-16 15:30:33,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1247 to 1247. [2022-10-16 15:30:33,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1247 states, 845 states have (on average 1.319526627218935) internal successors, (1115), 889 states have internal predecessors, (1115), 364 states have call successors, (364), 24 states have call predecessors, (364), 24 states have return successors, (363), 361 states have call predecessors, (363), 363 states have call successors, (363) [2022-10-16 15:30:33,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1247 states to 1247 states and 1842 transitions. [2022-10-16 15:30:33,927 INFO L78 Accepts]: Start accepts. Automaton has 1247 states and 1842 transitions. Word has length 47 [2022-10-16 15:30:33,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:30:33,928 INFO L495 AbstractCegarLoop]: Abstraction has 1247 states and 1842 transitions. [2022-10-16 15:30:33,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-16 15:30:33,928 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states and 1842 transitions. [2022-10-16 15:30:33,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2022-10-16 15:30:33,962 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:30:33,963 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:30:33,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 15:30:33,964 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __startrek_entry_pt_OSEK_Task_ts3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__startrek_entry_pt_OSEK_Task_ts1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, __startrek_entry_pt_OSEK_Task_ts1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 68 more)] === [2022-10-16 15:30:33,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:30:33,966 INFO L85 PathProgramCache]: Analyzing trace with hash 654589227, now seen corresponding path program 1 times [2022-10-16 15:30:33,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:30:33,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754595269] [2022-10-16 15:30:33,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:30:33,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms