./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 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-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-?-798a7b3-m [2025-03-04 14:41:32,679 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 14:41:32,736 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-03-04 14:41:32,740 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 14:41:32,741 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 14:41:32,760 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 14:41:32,760 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 14:41:32,760 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 14:41:32,761 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 14:41:32,761 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 14:41:32,761 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 14:41:32,761 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 14:41:32,761 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 14:41:32,761 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 14:41:32,761 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 14:41:32,762 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 14:41:32,762 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 14:41:32,762 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 14:41:32,762 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 14:41:32,762 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 14:41:32,762 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 14:41:32,762 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 14:41:32,762 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-04 14:41:32,762 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 14:41:32,762 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 14:41:32,762 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 14:41:32,762 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 14:41:32,763 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 14:41:32,763 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 14:41:32,763 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 14:41:32,763 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 14:41:32,763 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 14:41:32,763 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 14:41:32,763 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 14:41:32,763 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 14:41:32,763 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 14:41:32,763 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 14:41:32,763 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 14:41:32,763 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 14:41:32,763 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 14:41:32,763 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 14:41:32,763 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 14:41:32,764 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 [2025-03-04 14:41:33,003 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 14:41:33,009 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 14:41:33,011 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 14:41:33,012 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 14:41:33,012 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 14:41:33,014 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/busybox-1.22.0/stty-1.i [2025-03-04 14:41:34,150 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/812b39b7d/3545e12fa7074c40b256a0924ee6d381/FLAG9052a173e [2025-03-04 14:41:34,587 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 14:41:34,588 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/busybox-1.22.0/stty-1.i [2025-03-04 14:41:34,620 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/812b39b7d/3545e12fa7074c40b256a0924ee6d381/FLAG9052a173e [2025-03-04 14:41:34,635 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/812b39b7d/3545e12fa7074c40b256a0924ee6d381 [2025-03-04 14:41:34,640 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 14:41:34,641 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 14:41:34,642 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 14:41:34,642 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 14:41:34,645 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 14:41:34,646 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:41:34" (1/1) ... [2025-03-04 14:41:34,647 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33f67c65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:41:34, skipping insertion in model container [2025-03-04 14:41:34,647 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:41:34" (1/1) ... [2025-03-04 14:41:34,722 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 14:41:36,132 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 14:41:36,264 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 14:41:36,464 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 14:41:36,731 WARN L1212 FunctionHandler]: The following functions are not defined or handled internally: vasprintf [2025-03-04 14:41:36,741 INFO L204 MainTranslator]: Completed translation [2025-03-04 14:41:36,745 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:41:36 WrapperNode [2025-03-04 14:41:36,745 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 14:41:36,746 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 14:41:36,746 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 14:41:36,746 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 14:41:36,752 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:41:36" (1/1) ... [2025-03-04 14:41:36,898 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:41:36" (1/1) ... [2025-03-04 14:41:37,218 INFO L138 Inliner]: procedures = 675, calls = 10738, calls flagged for inlining = 37, calls inlined = 35, statements flattened = 12838 [2025-03-04 14:41:37,220 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 14:41:37,221 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 14:41:37,221 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 14:41:37,221 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 14:41:37,231 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:41:36" (1/1) ... [2025-03-04 14:41:37,232 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:41:36" (1/1) ... [2025-03-04 14:41:37,341 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:41:36" (1/1) ... [2025-03-04 14:41:37,354 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2025-03-04 14:41:37,354 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:41:36" (1/1) ... [2025-03-04 14:41:37,355 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:41:36" (1/1) ... [2025-03-04 14:41:37,660 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:41:36" (1/1) ... [2025-03-04 14:41:37,680 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:41:36" (1/1) ... [2025-03-04 14:41:37,709 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:41:36" (1/1) ... [2025-03-04 14:41:37,728 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:41:36" (1/1) ... [2025-03-04 14:41:37,778 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 14:41:37,779 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 14:41:37,779 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 14:41:37,780 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 14:41:37,781 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:41:36" (1/1) ... [2025-03-04 14:41:37,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 14:41:37,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 14:41:37,809 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 14:41:37,812 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 14:41:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure bb_putchar [2025-03-04 14:41:37,826 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_putchar [2025-03-04 14:41:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure fcntl [2025-03-04 14:41:37,826 INFO L138 BoogieDeclarations]: Found implementation of procedure fcntl [2025-03-04 14:41:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure get_terminal_width_height [2025-03-04 14:41:37,826 INFO L138 BoogieDeclarations]: Found implementation of procedure get_terminal_width_height [2025-03-04 14:41:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure set_control_char_or_die [2025-03-04 14:41:37,826 INFO L138 BoogieDeclarations]: Found implementation of procedure set_control_char_or_die [2025-03-04 14:41:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 14:41:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure perror_on_device_and_die [2025-03-04 14:41:37,827 INFO L138 BoogieDeclarations]: Found implementation of procedure perror_on_device_and_die [2025-03-04 14:41:37,827 INFO L130 BoogieDeclarations]: Found specification of procedure set_window_size [2025-03-04 14:41:37,827 INFO L138 BoogieDeclarations]: Found implementation of procedure set_window_size [2025-03-04 14:41:37,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2025-03-04 14:41:37,827 INFO L130 BoogieDeclarations]: Found specification of procedure bb_verror_msg [2025-03-04 14:41:37,827 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_verror_msg [2025-03-04 14:41:37,827 INFO L130 BoogieDeclarations]: Found specification of procedure xatoul_sfx [2025-03-04 14:41:37,827 INFO L138 BoogieDeclarations]: Found implementation of procedure xatoul_sfx [2025-03-04 14:41:37,827 INFO L130 BoogieDeclarations]: Found specification of procedure find_param [2025-03-04 14:41:37,827 INFO L138 BoogieDeclarations]: Found implementation of procedure find_param [2025-03-04 14:41:37,827 INFO L130 BoogieDeclarations]: Found specification of procedure xatoul_range_sfx [2025-03-04 14:41:37,827 INFO L138 BoogieDeclarations]: Found implementation of procedure xatoul_range_sfx [2025-03-04 14:41:37,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2025-03-04 14:41:37,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-04 14:41:37,828 INFO L130 BoogieDeclarations]: Found specification of procedure tty_value_to_baud [2025-03-04 14:41:37,828 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_value_to_baud [2025-03-04 14:41:37,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 14:41:37,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 14:41:37,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2025-03-04 14:41:37,828 INFO L130 BoogieDeclarations]: Found specification of procedure nth_string [2025-03-04 14:41:37,828 INFO L138 BoogieDeclarations]: Found implementation of procedure nth_string [2025-03-04 14:41:37,828 INFO L130 BoogieDeclarations]: Found specification of procedure find_mode [2025-03-04 14:41:37,828 INFO L138 BoogieDeclarations]: Found implementation of procedure find_mode [2025-03-04 14:41:37,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 14:41:37,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 14:41:37,828 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2025-03-04 14:41:37,828 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2025-03-04 14:41:37,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2025-03-04 14:41:37,828 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2025-03-04 14:41:37,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2025-03-04 14:41:37,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2025-03-04 14:41:37,828 INFO L130 BoogieDeclarations]: Found specification of procedure display_speed [2025-03-04 14:41:37,828 INFO L138 BoogieDeclarations]: Found implementation of procedure display_speed [2025-03-04 14:41:37,828 INFO L130 BoogieDeclarations]: Found specification of procedure tty_baud_to_value [2025-03-04 14:41:37,828 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_baud_to_value [2025-03-04 14:41:37,828 INFO L130 BoogieDeclarations]: Found specification of procedure bb_perror_msg_and_die [2025-03-04 14:41:37,828 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_perror_msg_and_die [2025-03-04 14:41:37,828 INFO L130 BoogieDeclarations]: Found specification of procedure get_ptr_to_tcflag [2025-03-04 14:41:37,828 INFO L138 BoogieDeclarations]: Found implementation of procedure get_ptr_to_tcflag [2025-03-04 14:41:37,828 INFO L130 BoogieDeclarations]: Found specification of procedure tcgetattr [2025-03-04 14:41:37,829 INFO L138 BoogieDeclarations]: Found implementation of procedure tcgetattr [2025-03-04 14:41:37,829 INFO L130 BoogieDeclarations]: Found specification of procedure recover_mode [2025-03-04 14:41:37,829 INFO L138 BoogieDeclarations]: Found implementation of procedure recover_mode [2025-03-04 14:41:37,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2025-03-04 14:41:37,829 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2025-03-04 14:41:37,829 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-04 14:41:37,829 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-04 14:41:37,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 14:41:37,829 INFO L130 BoogieDeclarations]: Found specification of procedure set_speed_or_die [2025-03-04 14:41:37,829 INFO L138 BoogieDeclarations]: Found implementation of procedure set_speed_or_die [2025-03-04 14:41:37,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2025-03-04 14:41:37,829 INFO L130 BoogieDeclarations]: Found specification of procedure xstrtoull_range_sfx [2025-03-04 14:41:37,829 INFO L138 BoogieDeclarations]: Found implementation of procedure xstrtoull_range_sfx [2025-03-04 14:41:37,829 INFO L130 BoogieDeclarations]: Found specification of procedure ioctl [2025-03-04 14:41:37,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ioctl [2025-03-04 14:41:37,829 INFO L130 BoogieDeclarations]: Found specification of procedure find_control [2025-03-04 14:41:37,829 INFO L138 BoogieDeclarations]: Found implementation of procedure find_control [2025-03-04 14:41:37,829 INFO L130 BoogieDeclarations]: Found specification of procedure xatou [2025-03-04 14:41:37,829 INFO L138 BoogieDeclarations]: Found implementation of procedure xatou [2025-03-04 14:41:37,829 INFO L130 BoogieDeclarations]: Found specification of procedure perror_on_device [2025-03-04 14:41:37,829 INFO L138 BoogieDeclarations]: Found implementation of procedure perror_on_device [2025-03-04 14:41:37,829 INFO L130 BoogieDeclarations]: Found specification of procedure wh_helper [2025-03-04 14:41:37,829 INFO L138 BoogieDeclarations]: Found implementation of procedure wh_helper [2025-03-04 14:41:37,829 INFO L130 BoogieDeclarations]: Found specification of procedure set_mode [2025-03-04 14:41:37,829 INFO L138 BoogieDeclarations]: Found implementation of procedure set_mode [2025-03-04 14:41:37,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-04 14:41:37,829 INFO L130 BoogieDeclarations]: Found specification of procedure index_in_strings [2025-03-04 14:41:37,829 INFO L138 BoogieDeclarations]: Found implementation of procedure index_in_strings [2025-03-04 14:41:37,829 INFO L130 BoogieDeclarations]: Found specification of procedure newline [2025-03-04 14:41:37,829 INFO L138 BoogieDeclarations]: Found implementation of procedure newline [2025-03-04 14:41:37,829 INFO L130 BoogieDeclarations]: Found specification of procedure wrapf [2025-03-04 14:41:37,829 INFO L138 BoogieDeclarations]: Found implementation of procedure wrapf [2025-03-04 14:41:37,829 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg_and_die [2025-03-04 14:41:37,829 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg_and_die [2025-03-04 14:41:37,829 INFO L130 BoogieDeclarations]: Found specification of procedure display_window_size [2025-03-04 14:41:37,829 INFO L138 BoogieDeclarations]: Found implementation of procedure display_window_size [2025-03-04 14:41:37,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-04 14:41:38,333 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 14:41:38,335 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 14:41:38,748 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L4542: havoc cfgetospeed_#t~nondet761#1; [2025-03-04 14:41:38,748 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L4537: havoc cfgetispeed_#t~nondet720#1; [2025-03-04 14:41:38,830 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L4074: havoc #t~mem426; [2025-03-04 14:41:39,488 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3504: havoc ~val~1#1; [2025-03-04 14:41:39,528 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 14:41:39,540 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3145: havoc #t~mem168; [2025-03-04 14:42:35,531 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3768: havoc __main_~i~7#1; [2025-03-04 14:42:35,531 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 14:42:36,073 INFO L? ?]: Removed 1240 outVars from TransFormulas that were not future-live. [2025-03-04 14:42:36,073 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 14:42:36,153 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 14:42:36,153 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 14:42:36,153 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:42:36 BoogieIcfgContainer [2025-03-04 14:42:36,153 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 14:42:36,155 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 14:42:36,155 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 14:42:36,159 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 14:42:36,159 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 02:41:34" (1/3) ... [2025-03-04 14:42:36,159 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@85deb29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:42:36, skipping insertion in model container [2025-03-04 14:42:36,159 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:41:36" (2/3) ... [2025-03-04 14:42:36,159 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@85deb29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:42:36, skipping insertion in model container [2025-03-04 14:42:36,160 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:42:36" (3/3) ... [2025-03-04 14:42:36,162 INFO L128 eAbstractionObserver]: Analyzing ICFG stty-1.i [2025-03-04 14:42:36,173 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 14:42:36,176 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. [2025-03-04 14:42:36,247 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 14:42:36,255 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;@6ce0b083, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 14:42:36,255 INFO L334 AbstractCegarLoop]: Starting to check reachability of 141 error locations. [2025-03-04 14:42:36,261 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) [2025-03-04 14:42:36,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-03-04 14:42:36,266 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 14:42:36,266 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-03-04 14:42:36,266 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)] === [2025-03-04 14:42:36,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 14:42:36,271 INFO L85 PathProgramCache]: Analyzing trace with hash 62644415, now seen corresponding path program 1 times [2025-03-04 14:42:36,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 14:42:36,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919652801] [2025-03-04 14:42:36,278 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:42:36,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms