./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 e2fb8bed 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-1.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 2f9ee57426f042b21b9e1f07509c47aef4a9ac7684fc683fde3eb34c5f3c72d8 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 05:54:35,596 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 05:54:35,647 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-03-09 05:54:35,651 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 05:54:35,651 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 05:54:35,672 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 05:54:35,673 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 05:54:35,674 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 05:54:35,674 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 05:54:35,674 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 05:54:35,675 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 05:54:35,675 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 05:54:35,675 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 05:54:35,675 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 05:54:35,676 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 05:54:35,676 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 05:54:35,676 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-09 05:54:35,676 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 05:54:35,676 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 05:54:35,676 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-09 05:54:35,676 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 05:54:35,676 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-09 05:54:35,677 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-09 05:54:35,677 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 05:54:35,677 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 05:54:35,677 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 05:54:35,677 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 05:54:35,677 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 05:54:35,677 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 05:54:35,677 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 05:54:35,678 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 05:54:35,678 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 05:54:35,678 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 05:54:35,678 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 05:54:35,678 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-09 05:54:35,678 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-09 05:54:35,678 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 05:54:35,678 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-09 05:54:35,678 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 05:54:35,678 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 05:54:35,678 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 05:54:35,679 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 05:54:35,679 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 -> 2f9ee57426f042b21b9e1f07509c47aef4a9ac7684fc683fde3eb34c5f3c72d8 [2025-03-09 05:54:35,898 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 05:54:35,906 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 05:54:35,908 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 05:54:35,909 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 05:54:35,909 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 05:54:35,910 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/busybox-1.22.0/stty-1.i [2025-03-09 05:54:37,043 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/373857445/877fdafcc3db49d48b292e4c97c0bc24/FLAG704199f16 [2025-03-09 05:54:37,480 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 05:54:37,482 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/busybox-1.22.0/stty-1.i [2025-03-09 05:54:37,517 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/373857445/877fdafcc3db49d48b292e4c97c0bc24/FLAG704199f16 [2025-03-09 05:54:37,615 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/373857445/877fdafcc3db49d48b292e4c97c0bc24 [2025-03-09 05:54:37,617 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 05:54:37,618 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 05:54:37,620 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 05:54:37,620 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 05:54:37,623 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 05:54:37,624 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 05:54:37" (1/1) ... [2025-03-09 05:54:37,625 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@777e3484 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:54:37, skipping insertion in model container [2025-03-09 05:54:37,626 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 05:54:37" (1/1) ... [2025-03-09 05:54:37,691 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 05:54:38,694 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 05:54:38,820 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 05:54:39,026 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 05:54:39,275 WARN L1212 FunctionHandler]: The following functions are not defined or handled internally: vasprintf [2025-03-09 05:54:39,282 INFO L204 MainTranslator]: Completed translation [2025-03-09 05:54:39,283 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:54:39 WrapperNode [2025-03-09 05:54:39,283 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 05:54:39,284 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 05:54:39,284 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 05:54:39,284 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 05:54:39,288 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:54:39" (1/1) ... [2025-03-09 05:54:39,390 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:54:39" (1/1) ... [2025-03-09 05:54:39,693 INFO L138 Inliner]: procedures = 675, calls = 10738, calls flagged for inlining = 37, calls inlined = 35, statements flattened = 12838 [2025-03-09 05:54:39,694 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 05:54:39,694 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 05:54:39,694 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 05:54:39,695 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 05:54:39,701 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:54:39" (1/1) ... [2025-03-09 05:54:39,702 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:54:39" (1/1) ... [2025-03-09 05:54:39,758 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:54:39" (1/1) ... [2025-03-09 05:54:39,771 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2025-03-09 05:54:39,771 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:54:39" (1/1) ... [2025-03-09 05:54:39,771 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:54:39" (1/1) ... [2025-03-09 05:54:40,044 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:54:39" (1/1) ... [2025-03-09 05:54:40,064 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:54:39" (1/1) ... [2025-03-09 05:54:40,091 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:54:39" (1/1) ... [2025-03-09 05:54:40,115 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:54:39" (1/1) ... [2025-03-09 05:54:40,161 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 05:54:40,162 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 05:54:40,162 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 05:54:40,163 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 05:54:40,163 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:54:39" (1/1) ... [2025-03-09 05:54:40,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 05:54:40,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 05:54:40,191 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) [2025-03-09 05:54:40,193 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 [2025-03-09 05:54:40,210 INFO L130 BoogieDeclarations]: Found specification of procedure bb_putchar [2025-03-09 05:54:40,210 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_putchar [2025-03-09 05:54:40,210 INFO L130 BoogieDeclarations]: Found specification of procedure fcntl [2025-03-09 05:54:40,210 INFO L138 BoogieDeclarations]: Found implementation of procedure fcntl [2025-03-09 05:54:40,211 INFO L130 BoogieDeclarations]: Found specification of procedure get_terminal_width_height [2025-03-09 05:54:40,211 INFO L138 BoogieDeclarations]: Found implementation of procedure get_terminal_width_height [2025-03-09 05:54:40,211 INFO L130 BoogieDeclarations]: Found specification of procedure set_control_char_or_die [2025-03-09 05:54:40,211 INFO L138 BoogieDeclarations]: Found implementation of procedure set_control_char_or_die [2025-03-09 05:54:40,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-09 05:54:40,211 INFO L130 BoogieDeclarations]: Found specification of procedure perror_on_device_and_die [2025-03-09 05:54:40,211 INFO L138 BoogieDeclarations]: Found implementation of procedure perror_on_device_and_die [2025-03-09 05:54:40,211 INFO L130 BoogieDeclarations]: Found specification of procedure set_window_size [2025-03-09 05:54:40,211 INFO L138 BoogieDeclarations]: Found implementation of procedure set_window_size [2025-03-09 05:54:40,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2025-03-09 05:54:40,212 INFO L130 BoogieDeclarations]: Found specification of procedure bb_verror_msg [2025-03-09 05:54:40,212 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_verror_msg [2025-03-09 05:54:40,212 INFO L130 BoogieDeclarations]: Found specification of procedure xatoul_sfx [2025-03-09 05:54:40,212 INFO L138 BoogieDeclarations]: Found implementation of procedure xatoul_sfx [2025-03-09 05:54:40,212 INFO L130 BoogieDeclarations]: Found specification of procedure find_param [2025-03-09 05:54:40,212 INFO L138 BoogieDeclarations]: Found implementation of procedure find_param [2025-03-09 05:54:40,212 INFO L130 BoogieDeclarations]: Found specification of procedure xatoul_range_sfx [2025-03-09 05:54:40,212 INFO L138 BoogieDeclarations]: Found implementation of procedure xatoul_range_sfx [2025-03-09 05:54:40,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2025-03-09 05:54:40,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-09 05:54:40,213 INFO L130 BoogieDeclarations]: Found specification of procedure tty_value_to_baud [2025-03-09 05:54:40,213 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_value_to_baud [2025-03-09 05:54:40,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-09 05:54:40,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 05:54:40,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2025-03-09 05:54:40,213 INFO L130 BoogieDeclarations]: Found specification of procedure nth_string [2025-03-09 05:54:40,213 INFO L138 BoogieDeclarations]: Found implementation of procedure nth_string [2025-03-09 05:54:40,213 INFO L130 BoogieDeclarations]: Found specification of procedure find_mode [2025-03-09 05:54:40,213 INFO L138 BoogieDeclarations]: Found implementation of procedure find_mode [2025-03-09 05:54:40,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 05:54:40,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 05:54:40,214 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2025-03-09 05:54:40,214 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2025-03-09 05:54:40,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2025-03-09 05:54:40,214 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2025-03-09 05:54:40,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2025-03-09 05:54:40,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2025-03-09 05:54:40,214 INFO L130 BoogieDeclarations]: Found specification of procedure display_speed [2025-03-09 05:54:40,215 INFO L138 BoogieDeclarations]: Found implementation of procedure display_speed [2025-03-09 05:54:40,215 INFO L130 BoogieDeclarations]: Found specification of procedure tty_baud_to_value [2025-03-09 05:54:40,215 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_baud_to_value [2025-03-09 05:54:40,215 INFO L130 BoogieDeclarations]: Found specification of procedure bb_perror_msg_and_die [2025-03-09 05:54:40,215 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_perror_msg_and_die [2025-03-09 05:54:40,215 INFO L130 BoogieDeclarations]: Found specification of procedure get_ptr_to_tcflag [2025-03-09 05:54:40,215 INFO L138 BoogieDeclarations]: Found implementation of procedure get_ptr_to_tcflag [2025-03-09 05:54:40,215 INFO L130 BoogieDeclarations]: Found specification of procedure tcgetattr [2025-03-09 05:54:40,215 INFO L138 BoogieDeclarations]: Found implementation of procedure tcgetattr [2025-03-09 05:54:40,215 INFO L130 BoogieDeclarations]: Found specification of procedure recover_mode [2025-03-09 05:54:40,215 INFO L138 BoogieDeclarations]: Found implementation of procedure recover_mode [2025-03-09 05:54:40,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2025-03-09 05:54:40,215 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2025-03-09 05:54:40,215 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-09 05:54:40,215 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-09 05:54:40,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-09 05:54:40,215 INFO L130 BoogieDeclarations]: Found specification of procedure set_speed_or_die [2025-03-09 05:54:40,215 INFO L138 BoogieDeclarations]: Found implementation of procedure set_speed_or_die [2025-03-09 05:54:40,215 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2025-03-09 05:54:40,215 INFO L130 BoogieDeclarations]: Found specification of procedure xstrtoull_range_sfx [2025-03-09 05:54:40,215 INFO L138 BoogieDeclarations]: Found implementation of procedure xstrtoull_range_sfx [2025-03-09 05:54:40,215 INFO L130 BoogieDeclarations]: Found specification of procedure ioctl [2025-03-09 05:54:40,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ioctl [2025-03-09 05:54:40,215 INFO L130 BoogieDeclarations]: Found specification of procedure find_control [2025-03-09 05:54:40,215 INFO L138 BoogieDeclarations]: Found implementation of procedure find_control [2025-03-09 05:54:40,215 INFO L130 BoogieDeclarations]: Found specification of procedure xatou [2025-03-09 05:54:40,215 INFO L138 BoogieDeclarations]: Found implementation of procedure xatou [2025-03-09 05:54:40,215 INFO L130 BoogieDeclarations]: Found specification of procedure perror_on_device [2025-03-09 05:54:40,215 INFO L138 BoogieDeclarations]: Found implementation of procedure perror_on_device [2025-03-09 05:54:40,215 INFO L130 BoogieDeclarations]: Found specification of procedure wh_helper [2025-03-09 05:54:40,215 INFO L138 BoogieDeclarations]: Found implementation of procedure wh_helper [2025-03-09 05:54:40,215 INFO L130 BoogieDeclarations]: Found specification of procedure set_mode [2025-03-09 05:54:40,215 INFO L138 BoogieDeclarations]: Found implementation of procedure set_mode [2025-03-09 05:54:40,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-09 05:54:40,215 INFO L130 BoogieDeclarations]: Found specification of procedure index_in_strings [2025-03-09 05:54:40,215 INFO L138 BoogieDeclarations]: Found implementation of procedure index_in_strings [2025-03-09 05:54:40,215 INFO L130 BoogieDeclarations]: Found specification of procedure newline [2025-03-09 05:54:40,215 INFO L138 BoogieDeclarations]: Found implementation of procedure newline [2025-03-09 05:54:40,216 INFO L130 BoogieDeclarations]: Found specification of procedure wrapf [2025-03-09 05:54:40,216 INFO L138 BoogieDeclarations]: Found implementation of procedure wrapf [2025-03-09 05:54:40,216 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg_and_die [2025-03-09 05:54:40,216 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg_and_die [2025-03-09 05:54:40,216 INFO L130 BoogieDeclarations]: Found specification of procedure display_window_size [2025-03-09 05:54:40,216 INFO L138 BoogieDeclarations]: Found implementation of procedure display_window_size [2025-03-09 05:54:40,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-09 05:54:40,672 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 05:54:40,673 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 05:54:41,096 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L4542: havoc cfgetospeed_#t~nondet761#1; [2025-03-09 05:54:41,097 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L4537: havoc cfgetispeed_#t~nondet720#1; [2025-03-09 05:54:41,174 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L4074: havoc #t~mem426; [2025-03-09 05:54:41,718 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3504: havoc ~val~1#1; [2025-03-09 05:54:41,758 INFO L1307 $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; [2025-03-09 05:54:41,768 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3145: havoc #t~mem168; [2025-03-09 05:55:29,757 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3768: havoc __main_~i~7#1; [2025-03-09 05:55:29,757 INFO L1307 $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; [2025-03-09 05:55:30,222 INFO L? ?]: Removed 1240 outVars from TransFormulas that were not future-live. [2025-03-09 05:55:30,223 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 05:55:30,299 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 05:55:30,301 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 05:55:30,302 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 05:55:30 BoogieIcfgContainer [2025-03-09 05:55:30,302 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 05:55:30,303 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 05:55:30,303 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 05:55:30,310 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 05:55:30,310 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 05:54:37" (1/3) ... [2025-03-09 05:55:30,311 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f330b17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 05:55:30, skipping insertion in model container [2025-03-09 05:55:30,311 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:54:39" (2/3) ... [2025-03-09 05:55:30,311 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f330b17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 05:55:30, skipping insertion in model container [2025-03-09 05:55:30,311 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 05:55:30" (3/3) ... [2025-03-09 05:55:30,312 INFO L128 eAbstractionObserver]: Analyzing ICFG stty-1.i [2025-03-09 05:55:30,321 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 05:55:30,324 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG stty-1.i that has 37 procedures, 1360 locations, 1 initial locations, 31 loop locations, and 141 error locations. [2025-03-09 05:55:30,391 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 05:55:30,401 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;@2d014b5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 05:55:30,402 INFO L334 AbstractCegarLoop]: Starting to check reachability of 141 error locations. [2025-03-09 05:55:30,410 INFO L276 IsEmpty]: Start isEmpty. Operand has 1360 states, 1037 states have (on average 1.5959498553519769) internal successors, (1655), 1232 states have internal predecessors, (1655), 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) [2025-03-09 05:55:30,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-03-09 05:55:30,414 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 05:55:30,414 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-03-09 05:55:30,414 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)] === [2025-03-09 05:55:30,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 05:55:30,418 INFO L85 PathProgramCache]: Analyzing trace with hash 62644415, now seen corresponding path program 1 times [2025-03-09 05:55:30,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 05:55:30,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626412227] [2025-03-09 05:55:30,424 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 05:55:30,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms