./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/busybox-1.22.0/stty-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/busybox-1.22.0/stty-1.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 2f9ee57426f042b21b9e1f07509c47aef4a9ac7684fc683fde3eb34c5f3c72d8 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 18:02:18,825 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 18:02:18,905 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-02-06 18:02:18,910 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 18:02:18,915 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 18:02:18,947 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 18:02:18,947 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 18:02:18,947 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 18:02:18,949 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 18:02:18,949 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 18:02:18,949 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 18:02:18,950 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 18:02:18,950 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 18:02:18,950 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 18:02:18,950 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 18:02:18,951 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 18:02:18,951 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 18:02:18,951 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 18:02:18,951 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 18:02:18,951 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 18:02:18,951 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 18:02:18,951 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 18:02:18,952 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-06 18:02:18,952 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 18:02:18,952 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 18:02:18,952 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 18:02:18,952 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 18:02:18,952 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 18:02:18,952 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 18:02:18,952 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 18:02:18,952 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 18:02:18,953 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 18:02:18,953 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 18:02:18,953 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 18:02:18,953 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 18:02:18,953 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 18:02:18,953 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 18:02:18,953 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 18:02:18,953 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 18:02:18,954 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 18:02:18,954 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 18:02:18,954 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 18:02:18,954 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-jdk21/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 -> 2f9ee57426f042b21b9e1f07509c47aef4a9ac7684fc683fde3eb34c5f3c72d8 [2025-02-06 18:02:19,269 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 18:02:19,279 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 18:02:19,281 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 18:02:19,282 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 18:02:19,282 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 18:02:19,284 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/busybox-1.22.0/stty-1.i [2025-02-06 18:02:20,565 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d0981033c/2fb18066ab6f4e03aa0700b0a2aef2db/FLAG2002eddb3 [2025-02-06 18:02:21,053 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 18:02:21,054 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/busybox-1.22.0/stty-1.i [2025-02-06 18:02:21,088 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d0981033c/2fb18066ab6f4e03aa0700b0a2aef2db/FLAG2002eddb3 [2025-02-06 18:02:21,105 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d0981033c/2fb18066ab6f4e03aa0700b0a2aef2db [2025-02-06 18:02:21,109 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 18:02:21,110 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 18:02:21,111 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 18:02:21,111 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 18:02:21,115 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 18:02:21,116 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:02:21" (1/1) ... [2025-02-06 18:02:21,118 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57d7689d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:02:21, skipping insertion in model container [2025-02-06 18:02:21,118 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:02:21" (1/1) ... [2025-02-06 18:02:21,204 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 18:02:22,540 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:02:22,714 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 18:02:22,983 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:02:23,346 WARN L1212 FunctionHandler]: The following functions are not defined or handled internally: vasprintf [2025-02-06 18:02:23,355 INFO L204 MainTranslator]: Completed translation [2025-02-06 18:02:23,356 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:02:23 WrapperNode [2025-02-06 18:02:23,356 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 18:02:23,357 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 18:02:23,357 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 18:02:23,357 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 18:02:23,363 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:02:23" (1/1) ... [2025-02-06 18:02:23,493 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:02:23" (1/1) ... [2025-02-06 18:02:23,891 INFO L138 Inliner]: procedures = 675, calls = 10738, calls flagged for inlining = 37, calls inlined = 35, statements flattened = 12838 [2025-02-06 18:02:23,892 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 18:02:23,893 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 18:02:23,893 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 18:02:23,893 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 18:02:23,902 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:02:23" (1/1) ... [2025-02-06 18:02:23,903 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:02:23" (1/1) ... [2025-02-06 18:02:23,969 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:02:23" (1/1) ... [2025-02-06 18:02:23,983 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2025-02-06 18:02:23,984 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:02:23" (1/1) ... [2025-02-06 18:02:23,984 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:02:23" (1/1) ... [2025-02-06 18:02:24,217 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:02:23" (1/1) ... [2025-02-06 18:02:24,241 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:02:23" (1/1) ... [2025-02-06 18:02:24,280 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:02:23" (1/1) ... [2025-02-06 18:02:24,435 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:02:23" (1/1) ... [2025-02-06 18:02:24,503 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 18:02:24,505 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 18:02:24,505 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 18:02:24,506 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 18:02:24,506 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:02:23" (1/1) ... [2025-02-06 18:02:24,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 18:02:24,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:02:24,539 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 18:02:24,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 18:02:24,566 INFO L130 BoogieDeclarations]: Found specification of procedure bb_putchar [2025-02-06 18:02:24,566 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_putchar [2025-02-06 18:02:24,566 INFO L130 BoogieDeclarations]: Found specification of procedure fcntl [2025-02-06 18:02:24,566 INFO L138 BoogieDeclarations]: Found implementation of procedure fcntl [2025-02-06 18:02:24,566 INFO L130 BoogieDeclarations]: Found specification of procedure get_terminal_width_height [2025-02-06 18:02:24,566 INFO L138 BoogieDeclarations]: Found implementation of procedure get_terminal_width_height [2025-02-06 18:02:24,566 INFO L130 BoogieDeclarations]: Found specification of procedure set_control_char_or_die [2025-02-06 18:02:24,567 INFO L138 BoogieDeclarations]: Found implementation of procedure set_control_char_or_die [2025-02-06 18:02:24,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 18:02:24,567 INFO L130 BoogieDeclarations]: Found specification of procedure perror_on_device_and_die [2025-02-06 18:02:24,567 INFO L138 BoogieDeclarations]: Found implementation of procedure perror_on_device_and_die [2025-02-06 18:02:24,567 INFO L130 BoogieDeclarations]: Found specification of procedure set_window_size [2025-02-06 18:02:24,567 INFO L138 BoogieDeclarations]: Found implementation of procedure set_window_size [2025-02-06 18:02:24,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2025-02-06 18:02:24,568 INFO L130 BoogieDeclarations]: Found specification of procedure bb_verror_msg [2025-02-06 18:02:24,568 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_verror_msg [2025-02-06 18:02:24,568 INFO L130 BoogieDeclarations]: Found specification of procedure xatoul_sfx [2025-02-06 18:02:24,568 INFO L138 BoogieDeclarations]: Found implementation of procedure xatoul_sfx [2025-02-06 18:02:24,568 INFO L130 BoogieDeclarations]: Found specification of procedure find_param [2025-02-06 18:02:24,569 INFO L138 BoogieDeclarations]: Found implementation of procedure find_param [2025-02-06 18:02:24,569 INFO L130 BoogieDeclarations]: Found specification of procedure xatoul_range_sfx [2025-02-06 18:02:24,569 INFO L138 BoogieDeclarations]: Found implementation of procedure xatoul_range_sfx [2025-02-06 18:02:24,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2025-02-06 18:02:24,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-02-06 18:02:24,569 INFO L130 BoogieDeclarations]: Found specification of procedure tty_value_to_baud [2025-02-06 18:02:24,569 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_value_to_baud [2025-02-06 18:02:24,569 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 18:02:24,569 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 18:02:24,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2025-02-06 18:02:24,569 INFO L130 BoogieDeclarations]: Found specification of procedure nth_string [2025-02-06 18:02:24,569 INFO L138 BoogieDeclarations]: Found implementation of procedure nth_string [2025-02-06 18:02:24,569 INFO L130 BoogieDeclarations]: Found specification of procedure find_mode [2025-02-06 18:02:24,570 INFO L138 BoogieDeclarations]: Found implementation of procedure find_mode [2025-02-06 18:02:24,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 18:02:24,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 18:02:24,570 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2025-02-06 18:02:24,570 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2025-02-06 18:02:24,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2025-02-06 18:02:24,570 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2025-02-06 18:02:24,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2025-02-06 18:02:24,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2025-02-06 18:02:24,571 INFO L130 BoogieDeclarations]: Found specification of procedure display_speed [2025-02-06 18:02:24,571 INFO L138 BoogieDeclarations]: Found implementation of procedure display_speed [2025-02-06 18:02:24,571 INFO L130 BoogieDeclarations]: Found specification of procedure tty_baud_to_value [2025-02-06 18:02:24,571 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_baud_to_value [2025-02-06 18:02:24,571 INFO L130 BoogieDeclarations]: Found specification of procedure bb_perror_msg_and_die [2025-02-06 18:02:24,571 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_perror_msg_and_die [2025-02-06 18:02:24,571 INFO L130 BoogieDeclarations]: Found specification of procedure get_ptr_to_tcflag [2025-02-06 18:02:24,571 INFO L138 BoogieDeclarations]: Found implementation of procedure get_ptr_to_tcflag [2025-02-06 18:02:24,571 INFO L130 BoogieDeclarations]: Found specification of procedure tcgetattr [2025-02-06 18:02:24,571 INFO L138 BoogieDeclarations]: Found implementation of procedure tcgetattr [2025-02-06 18:02:24,571 INFO L130 BoogieDeclarations]: Found specification of procedure recover_mode [2025-02-06 18:02:24,571 INFO L138 BoogieDeclarations]: Found implementation of procedure recover_mode [2025-02-06 18:02:24,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2025-02-06 18:02:24,571 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2025-02-06 18:02:24,571 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-06 18:02:24,571 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-06 18:02:24,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 18:02:24,571 INFO L130 BoogieDeclarations]: Found specification of procedure set_speed_or_die [2025-02-06 18:02:24,571 INFO L138 BoogieDeclarations]: Found implementation of procedure set_speed_or_die [2025-02-06 18:02:24,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2025-02-06 18:02:24,571 INFO L130 BoogieDeclarations]: Found specification of procedure xstrtoull_range_sfx [2025-02-06 18:02:24,571 INFO L138 BoogieDeclarations]: Found implementation of procedure xstrtoull_range_sfx [2025-02-06 18:02:24,571 INFO L130 BoogieDeclarations]: Found specification of procedure ioctl [2025-02-06 18:02:24,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ioctl [2025-02-06 18:02:24,571 INFO L130 BoogieDeclarations]: Found specification of procedure find_control [2025-02-06 18:02:24,571 INFO L138 BoogieDeclarations]: Found implementation of procedure find_control [2025-02-06 18:02:24,572 INFO L130 BoogieDeclarations]: Found specification of procedure xatou [2025-02-06 18:02:24,572 INFO L138 BoogieDeclarations]: Found implementation of procedure xatou [2025-02-06 18:02:24,572 INFO L130 BoogieDeclarations]: Found specification of procedure perror_on_device [2025-02-06 18:02:24,572 INFO L138 BoogieDeclarations]: Found implementation of procedure perror_on_device [2025-02-06 18:02:24,572 INFO L130 BoogieDeclarations]: Found specification of procedure wh_helper [2025-02-06 18:02:24,572 INFO L138 BoogieDeclarations]: Found implementation of procedure wh_helper [2025-02-06 18:02:24,572 INFO L130 BoogieDeclarations]: Found specification of procedure set_mode [2025-02-06 18:02:24,572 INFO L138 BoogieDeclarations]: Found implementation of procedure set_mode [2025-02-06 18:02:24,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-02-06 18:02:24,572 INFO L130 BoogieDeclarations]: Found specification of procedure index_in_strings [2025-02-06 18:02:24,572 INFO L138 BoogieDeclarations]: Found implementation of procedure index_in_strings [2025-02-06 18:02:24,572 INFO L130 BoogieDeclarations]: Found specification of procedure newline [2025-02-06 18:02:24,572 INFO L138 BoogieDeclarations]: Found implementation of procedure newline [2025-02-06 18:02:24,572 INFO L130 BoogieDeclarations]: Found specification of procedure wrapf [2025-02-06 18:02:24,572 INFO L138 BoogieDeclarations]: Found implementation of procedure wrapf [2025-02-06 18:02:24,572 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg_and_die [2025-02-06 18:02:24,572 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg_and_die [2025-02-06 18:02:24,572 INFO L130 BoogieDeclarations]: Found specification of procedure display_window_size [2025-02-06 18:02:24,572 INFO L138 BoogieDeclarations]: Found implementation of procedure display_window_size [2025-02-06 18:02:24,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-06 18:02:25,184 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 18:02:25,186 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 18:02:25,692 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L4542: havoc cfgetospeed_#t~nondet761#1; [2025-02-06 18:02:25,693 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L4537: havoc cfgetispeed_#t~nondet720#1; [2025-02-06 18:02:25,816 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L4074: havoc #t~mem426; [2025-02-06 18:02:26,506 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3504: havoc ~val~1#1; [2025-02-06 18:02:26,552 INFO L1309 $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; [2025-02-06 18:02:26,561 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3145: havoc #t~mem168; [2025-02-06 18:03:20,079 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3768: havoc __main_~i~7#1; [2025-02-06 18:03:20,080 INFO L1309 $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; [2025-02-06 18:03:20,748 INFO L? ?]: Removed 1240 outVars from TransFormulas that were not future-live. [2025-02-06 18:03:20,748 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 18:03:20,854 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 18:03:20,854 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 18:03:20,855 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:03:20 BoogieIcfgContainer [2025-02-06 18:03:20,855 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 18:03:20,858 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 18:03:20,858 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 18:03:20,865 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 18:03:20,865 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 06:02:21" (1/3) ... [2025-02-06 18:03:20,866 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16a33179 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:03:20, skipping insertion in model container [2025-02-06 18:03:20,866 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:02:23" (2/3) ... [2025-02-06 18:03:20,866 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16a33179 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:03:20, skipping insertion in model container [2025-02-06 18:03:20,866 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:03:20" (3/3) ... [2025-02-06 18:03:20,867 INFO L128 eAbstractionObserver]: Analyzing ICFG stty-1.i [2025-02-06 18:03:20,882 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 18:03:20,886 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG stty-1.i that has 37 procedures, 1366 locations, 1 initial locations, 31 loop locations, and 141 error locations. [2025-02-06 18:03:20,978 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 18:03:20,987 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;@294b054d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 18:03:20,990 INFO L334 AbstractCegarLoop]: Starting to check reachability of 141 error locations. [2025-02-06 18:03:20,999 INFO L276 IsEmpty]: Start isEmpty. Operand has 1366 states, 1043 states have (on average 1.5925215723873443) internal successors, (1661), 1238 states have internal predecessors, (1661), 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) [2025-02-06 18:03:21,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-02-06 18:03:21,003 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 18:03:21,003 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-02-06 18:03:21,004 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 139 more)] === [2025-02-06 18:03:21,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:03:21,007 INFO L85 PathProgramCache]: Analyzing trace with hash 62829119, now seen corresponding path program 1 times [2025-02-06 18:03:21,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:03:21,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913285354] [2025-02-06 18:03:21,014 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:03:21,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms