java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-1dfa93a-1-100_1a-drivers--usb--serial--kobil_sct.ko-entry_point_ldv-val-v0.8.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:09:44,050 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:09:44,052 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:09:44,065 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:09:44,065 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:09:44,066 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:09:44,068 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:09:44,070 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:09:44,071 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:09:44,072 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:09:44,073 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:09:44,074 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:09:44,075 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:09:44,076 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:09:44,077 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:09:44,078 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:09:44,079 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:09:44,080 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:09:44,082 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:09:44,084 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:09:44,086 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:09:44,087 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:09:44,088 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:09:44,089 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:09:44,094 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 23:09:44,095 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 23:09:44,095 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 23:09:44,099 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 23:09:44,099 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 23:09:44,102 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 23:09:44,102 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:09:44,103 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:09:44,104 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:09:44,105 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:09:44,106 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:09:44,106 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:09:44,107 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:09:44,107 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:09:44,107 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:09:44,111 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:09:44,111 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:09:44,112 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-14 23:09:44,139 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:09:44,140 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:09:44,143 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:09:44,144 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:09:44,144 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:09:44,144 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:09:44,144 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:09:44,144 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:09:44,145 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:09:44,145 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:09:44,146 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:09:44,146 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:09:44,146 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:09:44,147 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:09:44,147 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:09:44,147 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:09:44,147 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:09:44,148 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:09:44,148 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:09:44,148 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:09:44,148 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:09:44,149 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:09:44,149 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:09:44,149 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:09:44,149 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:09:44,149 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:09:44,150 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:09:44,150 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:09:44,150 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 23:09:44,410 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:09:44,426 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:09:44,432 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:09:44,433 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:09:44,434 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:09:44,434 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-1dfa93a-1-100_1a-drivers--usb--serial--kobil_sct.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-10-14 23:09:44,511 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1f607fcb/ca617ba337c54527a27ac13c24413b53/FLAG144c47e94 [2019-10-14 23:09:45,305 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:09:45,306 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-1dfa93a-1-100_1a-drivers--usb--serial--kobil_sct.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-10-14 23:09:45,347 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1f607fcb/ca617ba337c54527a27ac13c24413b53/FLAG144c47e94 [2019-10-14 23:09:45,855 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1f607fcb/ca617ba337c54527a27ac13c24413b53 [2019-10-14 23:09:45,865 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:09:45,867 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:09:45,868 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:09:45,868 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:09:45,871 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:09:45,873 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:09:45" (1/1) ... [2019-10-14 23:09:45,875 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@457b1b25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:09:45, skipping insertion in model container [2019-10-14 23:09:45,876 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:09:45" (1/1) ... [2019-10-14 23:09:45,883 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:09:46,006 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:09:47,270 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:09:47,334 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:09:47,694 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:09:47,866 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:09:47,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:09:47 WrapperNode [2019-10-14 23:09:47,869 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:09:47,870 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:09:47,870 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:09:47,871 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:09:47,888 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:09:47" (1/1) ... [2019-10-14 23:09:47,888 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:09:47" (1/1) ... [2019-10-14 23:09:47,972 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:09:47" (1/1) ... [2019-10-14 23:09:47,972 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:09:47" (1/1) ... [2019-10-14 23:09:48,064 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:09:47" (1/1) ... [2019-10-14 23:09:48,091 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:09:47" (1/1) ... [2019-10-14 23:09:48,107 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:09:47" (1/1) ... [2019-10-14 23:09:48,139 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:09:48,140 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:09:48,140 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:09:48,140 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:09:48,141 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:09:47" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:09:48,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:09:48,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:09:48,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_insert_flip_string_4 [2019-10-14 23:09:48,201 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-14 23:09:48,201 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-14 23:09:48,201 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-14 23:09:48,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-14 23:09:48,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-14 23:09:48,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-10-14 23:09:48,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-10-14 23:09:48,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-14 23:09:48,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-14 23:09:48,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-14 23:09:48,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-14 23:09:48,203 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2019-10-14 23:09:48,203 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2019-10-14 23:09:48,203 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2019-10-14 23:09:48,203 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2019-10-14 23:09:48,203 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_out [2019-10-14 23:09:48,204 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register [2019-10-14 23:09:48,204 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2019-10-14 23:09:48,204 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2019-10-14 23:09:48,205 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_serial_port_data [2019-10-14 23:09:48,205 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_serial_port_data [2019-10-14 23:09:48,205 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_debug_data [2019-10-14 23:09:48,207 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_startup [2019-10-14 23:09:48,207 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_release [2019-10-14 23:09:48,208 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_init_termios [2019-10-14 23:09:48,208 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_open [2019-10-14 23:09:48,208 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_close [2019-10-14 23:09:48,208 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_read_int_callback [2019-10-14 23:09:48,208 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_write_callback [2019-10-14 23:09:48,208 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_write [2019-10-14 23:09:48,209 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_write_room [2019-10-14 23:09:48,209 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_tiocmget [2019-10-14 23:09:48,209 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_tiocmset [2019-10-14 23:09:48,209 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_set_termios [2019-10-14 23:09:48,209 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_ioctl [2019-10-14 23:09:48,209 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_init [2019-10-14 23:09:48,210 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_exit [2019-10-14 23:09:48,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_usb_serial_driver_1 [2019-10-14 23:09:48,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_2 [2019-10-14 23:09:48,210 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:09:48,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_insert_flip_string_flags_3 [2019-10-14 23:09:48,210 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string [2019-10-14 23:09:48,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_insert_flip_string_fixed_flag_5 [2019-10-14 23:09:48,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_6 [2019-10-14 23:09:48,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_port_tty_get_7 [2019-10-14 23:09:48,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_flip_buffer_push_8 [2019-10-14 23:09:48,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_get_baud_rate_9 [2019-10-14 23:09:48,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_encode_baud_rate_10 [2019-10-14 23:09:48,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_11 [2019-10-14 23:09:48,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-14 23:09:48,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-14 23:09:48,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2019-10-14 23:09:48,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_got_tty [2019-10-14 23:09:48,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_tty [2019-10-14 23:09:48,212 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-10-14 23:09:48,212 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_printk [2019-10-14 23:09:48,212 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-10-14 23:09:48,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-14 23:09:48,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_detach_1 [2019-10-14 23:09:48,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_1 [2019-10-14 23:09:48,213 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2019-10-14 23:09:48,213 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-14 23:09:48,213 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_encode_baud_rate [2019-10-14 23:09:48,214 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_flip_buffer_push [2019-10-14 23:09:48,214 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_get_baud_rate [2019-10-14 23:09:48,214 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string_fixed_flag [2019-10-14 23:09:48,214 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string_flags [2019-10-14 23:09:48,214 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_kref_put [2019-10-14 23:09:48,214 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_get [2019-10-14 23:09:48,215 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2019-10-14 23:09:48,215 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2019-10-14 23:09:48,215 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2019-10-14 23:09:48,215 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2019-10-14 23:09:48,215 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2019-10-14 23:09:48,215 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_poison_urb [2019-10-14 23:09:48,215 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2019-10-14 23:09:48,216 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister [2019-10-14 23:09:48,216 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_disconnect [2019-10-14 23:09:48,216 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_probe [2019-10-14 23:09:48,216 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_register [2019-10-14 23:09:48,216 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2019-10-14 23:09:48,216 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-14 23:09:48,217 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-14 23:09:48,217 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-14 23:09:48,217 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-14 23:09:48,217 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-14 23:09:48,217 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:09:48,217 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-14 23:09:48,218 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-14 23:09:48,218 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2019-10-14 23:09:48,218 INFO L130 BoogieDeclarations]: Found specification of procedure tty_kref_put [2019-10-14 23:09:48,218 INFO L130 BoogieDeclarations]: Found specification of procedure tty_flip_buffer_push [2019-10-14 23:09:48,218 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_flip_buffer_push_8 [2019-10-14 23:09:48,218 INFO L130 BoogieDeclarations]: Found specification of procedure tty_get_baud_rate [2019-10-14 23:09:48,219 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_get_baud_rate_9 [2019-10-14 23:09:48,219 INFO L130 BoogieDeclarations]: Found specification of procedure tty_encode_baud_rate [2019-10-14 23:09:48,219 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_encode_baud_rate_10 [2019-10-14 23:09:48,219 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_get [2019-10-14 23:09:48,219 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_port_tty_get_7 [2019-10-14 23:09:48,219 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string_flags [2019-10-14 23:09:48,219 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_insert_flip_string_flags_3 [2019-10-14 23:09:48,220 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string_fixed_flag [2019-10-14 23:09:48,220 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_insert_flip_string_fixed_flag_5 [2019-10-14 23:09:48,220 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_insert_flip_string_4 [2019-10-14 23:09:48,220 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string [2019-10-14 23:09:48,220 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_got_tty [2019-10-14 23:09:48,220 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_tty [2019-10-14 23:09:48,220 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-14 23:09:48,221 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-14 23:09:48,221 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-14 23:09:48,221 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-14 23:09:48,221 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-14 23:09:48,221 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-14 23:09:48,221 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-14 23:09:48,221 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 23:09:48,222 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-14 23:09:48,222 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-14 23:09:48,222 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-14 23:09:48,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-14 23:09:48,222 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-14 23:09:48,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-14 23:09:48,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-10-14 23:09:48,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-10-14 23:09:48,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-14 23:09:48,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-14 23:09:48,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-14 23:09:48,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-14 23:09:48,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-14 23:09:48,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_usb_serial_driver_1 [2019-10-14 23:09:48,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_2 [2019-10-14 23:09:48,224 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2019-10-14 23:09:48,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 23:09:48,224 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2019-10-14 23:09:48,224 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2019-10-14 23:09:48,225 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2019-10-14 23:09:48,225 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_out [2019-10-14 23:09:48,225 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-10-14 23:09:48,225 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-10-14 23:09:48,225 INFO L130 BoogieDeclarations]: Found specification of procedure dev_printk [2019-10-14 23:09:48,225 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2019-10-14 23:09:48,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_6 [2019-10-14 23:09:48,226 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register [2019-10-14 23:09:48,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 23:09:48,226 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2019-10-14 23:09:48,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_11 [2019-10-14 23:09:48,226 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2019-10-14 23:09:48,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-14 23:09:48,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 23:09:48,227 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2019-10-14 23:09:48,227 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2019-10-14 23:09:48,227 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2019-10-14 23:09:48,227 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2019-10-14 23:09:48,227 INFO L130 BoogieDeclarations]: Found specification of procedure usb_poison_urb [2019-10-14 23:09:48,227 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2019-10-14 23:09:48,228 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2019-10-14 23:09:48,228 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_serial_port_data [2019-10-14 23:09:48,228 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_serial_port_data [2019-10-14 23:09:48,228 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_register [2019-10-14 23:09:48,228 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister [2019-10-14 23:09:48,228 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_probe [2019-10-14 23:09:48,228 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2019-10-14 23:09:48,229 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_debug_data [2019-10-14 23:09:48,229 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_startup [2019-10-14 23:09:48,229 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_release [2019-10-14 23:09:48,229 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_open [2019-10-14 23:09:48,229 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_close [2019-10-14 23:09:48,229 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_write [2019-10-14 23:09:48,229 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_write_room [2019-10-14 23:09:48,229 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_ioctl [2019-10-14 23:09:48,230 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_tiocmget [2019-10-14 23:09:48,230 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_tiocmset [2019-10-14 23:09:48,230 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_read_int_callback [2019-10-14 23:09:48,230 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_write_callback [2019-10-14 23:09:48,230 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_set_termios [2019-10-14 23:09:48,230 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_init_termios [2019-10-14 23:09:48,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-14 23:09:48,230 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-14 23:09:48,231 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-14 23:09:48,231 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_init [2019-10-14 23:09:48,231 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_exit [2019-10-14 23:09:48,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_1 [2019-10-14 23:09:48,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_detach_1 [2019-10-14 23:09:48,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-14 23:09:48,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-14 23:09:48,232 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:09:48,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 23:09:48,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-14 23:09:48,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2019-10-14 23:09:48,232 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-14 23:09:48,232 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-14 23:09:48,232 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-14 23:09:48,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:09:48,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-14 23:09:48,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-14 23:09:48,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:09:48,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-14 23:09:48,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-14 23:09:48,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-14 23:09:48,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-14 23:09:49,408 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-14 23:09:57,239 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:09:57,239 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-14 23:09:57,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:09:57 BoogieIcfgContainer [2019-10-14 23:09:57,241 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:09:57,244 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:09:57,244 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:09:57,248 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:09:57,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:09:45" (1/3) ... [2019-10-14 23:09:57,251 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@348a5ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:09:57, skipping insertion in model container [2019-10-14 23:09:57,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:09:47" (2/3) ... [2019-10-14 23:09:57,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@348a5ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:09:57, skipping insertion in model container [2019-10-14 23:09:57,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:09:57" (3/3) ... [2019-10-14 23:09:57,255 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-stable-1dfa93a-1-100_1a-drivers--usb--serial--kobil_sct.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-10-14 23:09:57,265 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:09:57,277 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:09:57,289 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:09:57,334 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:09:57,334 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:09:57,334 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:09:57,334 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:09:57,335 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:09:57,335 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:09:57,335 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:09:57,335 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:09:57,380 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states. [2019-10-14 23:09:57,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-10-14 23:09:57,413 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:09:57,414 INFO L380 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:09:57,417 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:09:57,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:09:57,423 INFO L82 PathProgramCache]: Analyzing trace with hash 1172024163, now seen corresponding path program 1 times [2019-10-14 23:09:57,432 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:09:57,432 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031012830] [2019-10-14 23:09:57,432 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:09:57,433 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:09:57,433 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:09:57,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:01,087 WARN L191 SmtUtils]: Spent 2.71 s on a formula simplification that was a NOOP. DAG size: 712 [2019-10-14 23:10:01,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:01,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:01,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:01,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:01,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:01,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:01,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:01,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:01,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:01,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:01,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:01,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:01,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:01,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:01,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:01,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:01,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:01,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:01,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:01,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:01,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:01,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:01,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:01,556 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2019-10-14 23:10:01,557 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031012830] [2019-10-14 23:10:01,558 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:10:01,558 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-14 23:10:01,559 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653670377] [2019-10-14 23:10:01,564 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-14 23:10:01,564 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:10:01,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-14 23:10:01,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-10-14 23:10:01,586 INFO L87 Difference]: Start difference. First operand 780 states. Second operand 9 states. [2019-10-14 23:10:04,349 WARN L191 SmtUtils]: Spent 2.71 s on a formula simplification that was a NOOP. DAG size: 721 [2019-10-14 23:10:13,006 WARN L191 SmtUtils]: Spent 2.69 s on a formula simplification that was a NOOP. DAG size: 723 [2019-10-14 23:10:15,693 WARN L191 SmtUtils]: Spent 2.49 s on a formula simplification that was a NOOP. DAG size: 714