./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/busybox-1.22.0/stty-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/busybox-1.22.0/stty-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6755faa368518d1417264b11a3e617ff714ec9f5377567ada97da82b246d87f4 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 14:41:37,192 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 14:41:37,240 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-03-04 14:41:37,244 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 14:41:37,244 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 14:41:37,266 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 14:41:37,266 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 14:41:37,267 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 14:41:37,267 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 14:41:37,267 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 14:41:37,267 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 14:41:37,267 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 14:41:37,267 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 14:41:37,268 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 14:41:37,268 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 14:41:37,268 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 14:41:37,268 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 14:41:37,268 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 14:41:37,268 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 14:41:37,268 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 14:41:37,268 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 14:41:37,268 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 14:41:37,268 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-04 14:41:37,268 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 14:41:37,269 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 14:41:37,269 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 14:41:37,269 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 14:41:37,269 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 14:41:37,269 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 14:41:37,269 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 14:41:37,269 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 14:41:37,269 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 14:41:37,269 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 14:41:37,270 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 14:41:37,270 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 14:41:37,270 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 14:41:37,270 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 14:41:37,270 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 14:41:37,270 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 14:41:37,270 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 14:41:37,270 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 14:41:37,270 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 14:41:37,270 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6755faa368518d1417264b11a3e617ff714ec9f5377567ada97da82b246d87f4 [2025-03-04 14:41:37,489 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 14:41:37,498 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 14:41:37,500 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 14:41:37,501 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 14:41:37,501 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 14:41:37,502 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/busybox-1.22.0/stty-2.i [2025-03-04 14:41:38,651 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5920017b1/3e8b739b1a4244d7a7c15345cb8ee3e2/FLAG7d6521dca [2025-03-04 14:41:39,027 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 14:41:39,029 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/busybox-1.22.0/stty-2.i [2025-03-04 14:41:39,055 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5920017b1/3e8b739b1a4244d7a7c15345cb8ee3e2/FLAG7d6521dca [2025-03-04 14:41:39,065 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5920017b1/3e8b739b1a4244d7a7c15345cb8ee3e2 [2025-03-04 14:41:39,067 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 14:41:39,069 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 14:41:39,069 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 14:41:39,070 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 14:41:39,072 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 14:41:39,073 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:41:39" (1/1) ... [2025-03-04 14:41:39,073 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3097829d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:41:39, skipping insertion in model container [2025-03-04 14:41:39,073 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:41:39" (1/1) ... [2025-03-04 14:41:39,137 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 14:41:40,147 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 14:41:40,285 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 14:41:40,446 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 14:41:40,702 WARN L1212 FunctionHandler]: The following functions are not defined or handled internally: vasprintf [2025-03-04 14:41:40,707 INFO L204 MainTranslator]: Completed translation [2025-03-04 14:41:40,707 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:41:40 WrapperNode [2025-03-04 14:41:40,708 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 14:41:40,709 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 14:41:40,709 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 14:41:40,710 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 14:41:40,713 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:41:40" (1/1) ... [2025-03-04 14:41:40,808 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:41:40" (1/1) ... [2025-03-04 14:41:41,183 INFO L138 Inliner]: procedures = 675, calls = 10738, calls flagged for inlining = 37, calls inlined = 35, statements flattened = 12830 [2025-03-04 14:41:41,184 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 14:41:41,184 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 14:41:41,185 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 14:41:41,185 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 14:41:41,192 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:41:40" (1/1) ... [2025-03-04 14:41:41,192 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:41:40" (1/1) ... [2025-03-04 14:41:41,268 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:41:40" (1/1) ... [2025-03-04 14:41:41,276 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2025-03-04 14:41:41,276 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:41:40" (1/1) ... [2025-03-04 14:41:41,277 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:41:40" (1/1) ... [2025-03-04 14:41:41,471 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:41:40" (1/1) ... [2025-03-04 14:41:41,491 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:41:40" (1/1) ... [2025-03-04 14:41:41,522 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:41:40" (1/1) ... [2025-03-04 14:41:41,548 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:41:40" (1/1) ... [2025-03-04 14:41:41,601 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 14:41:41,602 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 14:41:41,602 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 14:41:41,602 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 14:41:41,603 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:41:40" (1/1) ... [2025-03-04 14:41:41,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 14:41:41,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 14:41:41,701 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-04 14:41:41,703 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-04 14:41:41,719 INFO L130 BoogieDeclarations]: Found specification of procedure bb_putchar [2025-03-04 14:41:41,719 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_putchar [2025-03-04 14:41:41,719 INFO L130 BoogieDeclarations]: Found specification of procedure fcntl [2025-03-04 14:41:41,719 INFO L138 BoogieDeclarations]: Found implementation of procedure fcntl [2025-03-04 14:41:41,720 INFO L130 BoogieDeclarations]: Found specification of procedure get_terminal_width_height [2025-03-04 14:41:41,720 INFO L138 BoogieDeclarations]: Found implementation of procedure get_terminal_width_height [2025-03-04 14:41:41,720 INFO L130 BoogieDeclarations]: Found specification of procedure set_control_char_or_die [2025-03-04 14:41:41,720 INFO L138 BoogieDeclarations]: Found implementation of procedure set_control_char_or_die [2025-03-04 14:41:41,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 14:41:41,720 INFO L130 BoogieDeclarations]: Found specification of procedure perror_on_device_and_die [2025-03-04 14:41:41,720 INFO L138 BoogieDeclarations]: Found implementation of procedure perror_on_device_and_die [2025-03-04 14:41:41,720 INFO L130 BoogieDeclarations]: Found specification of procedure set_window_size [2025-03-04 14:41:41,720 INFO L138 BoogieDeclarations]: Found implementation of procedure set_window_size [2025-03-04 14:41:41,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2025-03-04 14:41:41,721 INFO L130 BoogieDeclarations]: Found specification of procedure bb_verror_msg [2025-03-04 14:41:41,721 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_verror_msg [2025-03-04 14:41:41,721 INFO L130 BoogieDeclarations]: Found specification of procedure xatoul_sfx [2025-03-04 14:41:41,721 INFO L138 BoogieDeclarations]: Found implementation of procedure xatoul_sfx [2025-03-04 14:41:41,721 INFO L130 BoogieDeclarations]: Found specification of procedure find_param [2025-03-04 14:41:41,721 INFO L138 BoogieDeclarations]: Found implementation of procedure find_param [2025-03-04 14:41:41,721 INFO L130 BoogieDeclarations]: Found specification of procedure xatoul_range_sfx [2025-03-04 14:41:41,721 INFO L138 BoogieDeclarations]: Found implementation of procedure xatoul_range_sfx [2025-03-04 14:41:41,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2025-03-04 14:41:41,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-04 14:41:41,721 INFO L130 BoogieDeclarations]: Found specification of procedure tty_value_to_baud [2025-03-04 14:41:41,722 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_value_to_baud [2025-03-04 14:41:41,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 14:41:41,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 14:41:41,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2025-03-04 14:41:41,722 INFO L130 BoogieDeclarations]: Found specification of procedure nth_string [2025-03-04 14:41:41,722 INFO L138 BoogieDeclarations]: Found implementation of procedure nth_string [2025-03-04 14:41:41,722 INFO L130 BoogieDeclarations]: Found specification of procedure find_mode [2025-03-04 14:41:41,722 INFO L138 BoogieDeclarations]: Found implementation of procedure find_mode [2025-03-04 14:41:41,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 14:41:41,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 14:41:41,723 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2025-03-04 14:41:41,723 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2025-03-04 14:41:41,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2025-03-04 14:41:41,723 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2025-03-04 14:41:41,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2025-03-04 14:41:41,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2025-03-04 14:41:41,723 INFO L130 BoogieDeclarations]: Found specification of procedure display_speed [2025-03-04 14:41:41,723 INFO L138 BoogieDeclarations]: Found implementation of procedure display_speed [2025-03-04 14:41:41,724 INFO L130 BoogieDeclarations]: Found specification of procedure tty_baud_to_value [2025-03-04 14:41:41,724 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_baud_to_value [2025-03-04 14:41:41,724 INFO L130 BoogieDeclarations]: Found specification of procedure bb_perror_msg_and_die [2025-03-04 14:41:41,724 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_perror_msg_and_die [2025-03-04 14:41:41,724 INFO L130 BoogieDeclarations]: Found specification of procedure get_ptr_to_tcflag [2025-03-04 14:41:41,724 INFO L138 BoogieDeclarations]: Found implementation of procedure get_ptr_to_tcflag [2025-03-04 14:41:41,724 INFO L130 BoogieDeclarations]: Found specification of procedure tcgetattr [2025-03-04 14:41:41,724 INFO L138 BoogieDeclarations]: Found implementation of procedure tcgetattr [2025-03-04 14:41:41,724 INFO L130 BoogieDeclarations]: Found specification of procedure recover_mode [2025-03-04 14:41:41,724 INFO L138 BoogieDeclarations]: Found implementation of procedure recover_mode [2025-03-04 14:41:41,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2025-03-04 14:41:41,724 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2025-03-04 14:41:41,724 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-04 14:41:41,724 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-04 14:41:41,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 14:41:41,724 INFO L130 BoogieDeclarations]: Found specification of procedure set_speed_or_die [2025-03-04 14:41:41,724 INFO L138 BoogieDeclarations]: Found implementation of procedure set_speed_or_die [2025-03-04 14:41:41,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2025-03-04 14:41:41,724 INFO L130 BoogieDeclarations]: Found specification of procedure xstrtoull_range_sfx [2025-03-04 14:41:41,724 INFO L138 BoogieDeclarations]: Found implementation of procedure xstrtoull_range_sfx [2025-03-04 14:41:41,724 INFO L130 BoogieDeclarations]: Found specification of procedure ioctl [2025-03-04 14:41:41,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ioctl [2025-03-04 14:41:41,724 INFO L130 BoogieDeclarations]: Found specification of procedure find_control [2025-03-04 14:41:41,724 INFO L138 BoogieDeclarations]: Found implementation of procedure find_control [2025-03-04 14:41:41,724 INFO L130 BoogieDeclarations]: Found specification of procedure xatou [2025-03-04 14:41:41,724 INFO L138 BoogieDeclarations]: Found implementation of procedure xatou [2025-03-04 14:41:41,724 INFO L130 BoogieDeclarations]: Found specification of procedure perror_on_device [2025-03-04 14:41:41,724 INFO L138 BoogieDeclarations]: Found implementation of procedure perror_on_device [2025-03-04 14:41:41,724 INFO L130 BoogieDeclarations]: Found specification of procedure wh_helper [2025-03-04 14:41:41,724 INFO L138 BoogieDeclarations]: Found implementation of procedure wh_helper [2025-03-04 14:41:41,724 INFO L130 BoogieDeclarations]: Found specification of procedure set_mode [2025-03-04 14:41:41,724 INFO L138 BoogieDeclarations]: Found implementation of procedure set_mode [2025-03-04 14:41:41,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-04 14:41:41,724 INFO L130 BoogieDeclarations]: Found specification of procedure index_in_strings [2025-03-04 14:41:41,724 INFO L138 BoogieDeclarations]: Found implementation of procedure index_in_strings [2025-03-04 14:41:41,724 INFO L130 BoogieDeclarations]: Found specification of procedure newline [2025-03-04 14:41:41,724 INFO L138 BoogieDeclarations]: Found implementation of procedure newline [2025-03-04 14:41:41,725 INFO L130 BoogieDeclarations]: Found specification of procedure wrapf [2025-03-04 14:41:41,725 INFO L138 BoogieDeclarations]: Found implementation of procedure wrapf [2025-03-04 14:41:41,725 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg_and_die [2025-03-04 14:41:41,725 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg_and_die [2025-03-04 14:41:41,725 INFO L130 BoogieDeclarations]: Found specification of procedure display_window_size [2025-03-04 14:41:41,725 INFO L138 BoogieDeclarations]: Found implementation of procedure display_window_size [2025-03-04 14:41:41,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-04 14:41:42,194 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 14:41:42,196 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 14:41:42,541 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L4542: havoc cfgetospeed_#t~nondet761#1; [2025-03-04 14:41:42,543 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L4537: havoc cfgetispeed_#t~nondet720#1; [2025-03-04 14:41:42,623 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L4074: havoc #t~mem426; [2025-03-04 14:41:43,192 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3504: havoc ~val~1#1; [2025-03-04 14:41:43,229 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3170: havoc #t~mem176;call ULTIMATE.dealloc(~#win~0.base, ~#win~0.offset);havoc ~#win~0.base, ~#win~0.offset;call ULTIMATE.dealloc(~#err~0.base, ~#err~0.offset);havoc ~#err~0.base, ~#err~0.offset; [2025-03-04 14:41:43,238 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3145: havoc #t~mem168; [2025-03-04 14:42:33,674 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3768: havoc __main_~i~7#1; [2025-03-04 14:42:33,675 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3741: call ULTIMATE.dealloc(__main_~#mode~0#1.base, __main_~#mode~0#1.offset);havoc __main_~#mode~0#1.base, __main_~#mode~0#1.offset; [2025-03-04 14:42:34,172 INFO L? ?]: Removed 1214 outVars from TransFormulas that were not future-live. [2025-03-04 14:42:34,172 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 14:42:34,232 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 14:42:34,237 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 14:42:34,237 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:42:34 BoogieIcfgContainer [2025-03-04 14:42:34,237 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 14:42:34,239 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 14:42:34,239 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 14:42:34,243 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 14:42:34,243 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 02:41:39" (1/3) ... [2025-03-04 14:42:34,244 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d1baf2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:42:34, skipping insertion in model container [2025-03-04 14:42:34,244 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:41:40" (2/3) ... [2025-03-04 14:42:34,244 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d1baf2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:42:34, skipping insertion in model container [2025-03-04 14:42:34,244 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:42:34" (3/3) ... [2025-03-04 14:42:34,245 INFO L128 eAbstractionObserver]: Analyzing ICFG stty-2.i [2025-03-04 14:42:34,257 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 14:42:34,260 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG stty-2.i that has 37 procedures, 1344 locations, 1 initial locations, 31 loop locations, and 133 error locations. [2025-03-04 14:42:34,329 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 14:42:34,338 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@303f1ab3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 14:42:34,339 INFO L334 AbstractCegarLoop]: Starting to check reachability of 133 error locations. [2025-03-04 14:42:34,346 INFO L276 IsEmpty]: Start isEmpty. Operand has 1344 states, 1029 states have (on average 1.5928085519922255) internal successors, (1639), 1216 states have internal predecessors, (1639), 145 states have call successors, (145), 36 states have call predecessors, (145), 36 states have return successors, (145), 140 states have call predecessors, (145), 145 states have call successors, (145) [2025-03-04 14:42:34,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-03-04 14:42:34,350 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 14:42:34,350 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-03-04 14:42:34,351 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONINTEGER_OVERFLOW === [set_control_char_or_dieErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, set_control_char_or_dieErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 131 more)] === [2025-03-04 14:42:34,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 14:42:34,354 INFO L85 PathProgramCache]: Analyzing trace with hash 62151871, now seen corresponding path program 1 times [2025-03-04 14:42:34,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 14:42:34,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760627098] [2025-03-04 14:42:34,359 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:42:34,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms