/usr/bin/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-fb55353 [2019-11-06 21:12:47,591 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 21:12:47,593 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 21:12:47,606 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-06 21:12:47,606 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-06 21:12:47,608 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-06 21:12:47,610 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-06 21:12:47,620 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-06 21:12:47,625 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-06 21:12:47,626 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-06 21:12:47,626 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-06 21:12:47,628 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-06 21:12:47,628 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-06 21:12:47,629 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-06 21:12:47,632 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-06 21:12:47,634 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-06 21:12:47,634 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-06 21:12:47,635 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-06 21:12:47,639 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-06 21:12:47,641 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-06 21:12:47,642 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-06 21:12:47,643 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-06 21:12:47,644 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-06 21:12:47,645 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-06 21:12:47,647 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-06 21:12:47,647 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-06 21:12:47,647 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-06 21:12:47,648 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-06 21:12:47,649 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-06 21:12:47,650 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-06 21:12:47,650 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-06 21:12:47,650 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-06 21:12:47,651 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-06 21:12:47,652 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-06 21:12:47,653 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-06 21:12:47,653 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-06 21:12:47,654 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-06 21:12:47,654 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-06 21:12:47,654 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-06 21:12:47,655 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-06 21:12:47,656 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-06 21:12:47,656 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 [2019-11-06 21:12:47,671 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 21:12:47,671 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 21:12:47,675 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 21:12:47,676 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 21:12:47,676 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 21:12:47,676 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 21:12:47,676 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 21:12:47,676 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 21:12:47,677 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 21:12:47,678 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 21:12:47,678 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 21:12:47,678 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 21:12:47,678 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 21:12:47,678 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 21:12:47,680 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 21:12:47,680 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 21:12:47,680 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 21:12:47,681 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 21:12:47,681 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 21:12:47,681 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 21:12:47,681 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 21:12:47,681 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 21:12:47,682 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 21:12:47,682 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 21:12:47,682 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 21:12:47,682 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 21:12:47,682 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 21:12:47,683 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 21:12:47,683 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-06 21:12:47,955 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 21:12:47,978 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 21:12:47,982 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 21:12:47,983 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 21:12:47,984 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 21:12:47,985 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-1dfa93a-1-100_1a-drivers--usb--serial--kobil_sct.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-11-06 21:12:48,061 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b567a5e9/175c80066b244639b53310326cffcbcd/FLAG72e301fe7 [2019-11-06 21:12:48,856 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 21:12:48,857 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-1dfa93a-1-100_1a-drivers--usb--serial--kobil_sct.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-11-06 21:12:48,899 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b567a5e9/175c80066b244639b53310326cffcbcd/FLAG72e301fe7 [2019-11-06 21:12:49,401 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b567a5e9/175c80066b244639b53310326cffcbcd [2019-11-06 21:12:49,412 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 21:12:49,414 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 21:12:49,415 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 21:12:49,415 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 21:12:49,418 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 21:12:49,419 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:12:49" (1/1) ... [2019-11-06 21:12:49,422 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e9f3d97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:12:49, skipping insertion in model container [2019-11-06 21:12:49,423 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:12:49" (1/1) ... [2019-11-06 21:12:49,430 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 21:12:49,521 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 21:12:50,880 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 21:12:50,930 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 21:12:51,251 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 21:12:51,406 INFO L192 MainTranslator]: Completed translation [2019-11-06 21:12:51,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:12:51 WrapperNode [2019-11-06 21:12:51,407 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 21:12:51,408 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 21:12:51,408 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 21:12:51,409 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 21:12:51,423 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:12:51" (1/1) ... [2019-11-06 21:12:51,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:12:51" (1/1) ... [2019-11-06 21:12:51,495 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:12:51" (1/1) ... [2019-11-06 21:12:51,499 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:12:51" (1/1) ... [2019-11-06 21:12:51,582 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:12:51" (1/1) ... [2019-11-06 21:12:51,602 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:12:51" (1/1) ... [2019-11-06 21:12:51,632 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:12:51" (1/1) ... [2019-11-06 21:12:51,664 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 21:12:51,665 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 21:12:51,665 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 21:12:51,665 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 21:12:51,666 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:12:51" (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 [2019-11-06 21:12:51,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 21:12:51,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 21:12:51,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_insert_flip_string_4 [2019-11-06 21:12:51,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-11-06 21:12:51,739 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-11-06 21:12:51,739 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-11-06 21:12:51,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-06 21:12:51,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-06 21:12:51,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-11-06 21:12:51,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-11-06 21:12:51,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-11-06 21:12:51,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-11-06 21:12:51,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-11-06 21:12:51,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-11-06 21:12:51,742 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2019-11-06 21:12:51,742 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2019-11-06 21:12:51,744 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2019-11-06 21:12:51,745 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2019-11-06 21:12:51,745 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_out [2019-11-06 21:12:51,745 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register [2019-11-06 21:12:51,745 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2019-11-06 21:12:51,745 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2019-11-06 21:12:51,745 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_serial_port_data [2019-11-06 21:12:51,746 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_serial_port_data [2019-11-06 21:12:51,746 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_debug_data [2019-11-06 21:12:51,746 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_startup [2019-11-06 21:12:51,746 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_release [2019-11-06 21:12:51,746 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_init_termios [2019-11-06 21:12:51,746 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_open [2019-11-06 21:12:51,747 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_close [2019-11-06 21:12:51,747 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_read_int_callback [2019-11-06 21:12:51,747 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_write_callback [2019-11-06 21:12:51,747 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_write [2019-11-06 21:12:51,747 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_write_room [2019-11-06 21:12:51,748 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_tiocmget [2019-11-06 21:12:51,748 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_tiocmset [2019-11-06 21:12:51,748 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_set_termios [2019-11-06 21:12:51,748 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_ioctl [2019-11-06 21:12:51,748 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_init [2019-11-06 21:12:51,748 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_exit [2019-11-06 21:12:51,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_usb_serial_driver_1 [2019-11-06 21:12:51,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_2 [2019-11-06 21:12:51,749 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 21:12:51,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_insert_flip_string_flags_3 [2019-11-06 21:12:51,749 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string [2019-11-06 21:12:51,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_insert_flip_string_fixed_flag_5 [2019-11-06 21:12:51,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_6 [2019-11-06 21:12:51,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_port_tty_get_7 [2019-11-06 21:12:51,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_flip_buffer_push_8 [2019-11-06 21:12:51,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_get_baud_rate_9 [2019-11-06 21:12:51,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_encode_baud_rate_10 [2019-11-06 21:12:51,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_11 [2019-11-06 21:12:51,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-11-06 21:12:51,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-11-06 21:12:51,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2019-11-06 21:12:51,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_got_tty [2019-11-06 21:12:51,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_tty [2019-11-06 21:12:51,751 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-11-06 21:12:51,751 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_printk [2019-11-06 21:12:51,752 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-11-06 21:12:51,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-11-06 21:12:51,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_detach_1 [2019-11-06 21:12:51,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_1 [2019-11-06 21:12:51,752 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2019-11-06 21:12:51,752 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-11-06 21:12:51,752 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_encode_baud_rate [2019-11-06 21:12:51,753 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_flip_buffer_push [2019-11-06 21:12:51,753 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_get_baud_rate [2019-11-06 21:12:51,753 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string_fixed_flag [2019-11-06 21:12:51,753 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string_flags [2019-11-06 21:12:51,753 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_kref_put [2019-11-06 21:12:51,754 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_get [2019-11-06 21:12:51,754 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2019-11-06 21:12:51,754 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2019-11-06 21:12:51,755 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2019-11-06 21:12:51,755 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2019-11-06 21:12:51,755 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2019-11-06 21:12:51,755 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_poison_urb [2019-11-06 21:12:51,755 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2019-11-06 21:12:51,755 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister [2019-11-06 21:12:51,755 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_disconnect [2019-11-06 21:12:51,756 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_probe [2019-11-06 21:12:51,756 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_register [2019-11-06 21:12:51,756 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2019-11-06 21:12:51,757 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-11-06 21:12:51,757 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-11-06 21:12:51,757 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-06 21:12:51,758 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-06 21:12:51,758 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-06 21:12:51,758 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 21:12:51,759 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-11-06 21:12:51,759 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-06 21:12:51,759 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2019-11-06 21:12:51,759 INFO L130 BoogieDeclarations]: Found specification of procedure tty_kref_put [2019-11-06 21:12:51,759 INFO L130 BoogieDeclarations]: Found specification of procedure tty_flip_buffer_push [2019-11-06 21:12:51,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_flip_buffer_push_8 [2019-11-06 21:12:51,760 INFO L130 BoogieDeclarations]: Found specification of procedure tty_get_baud_rate [2019-11-06 21:12:51,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_get_baud_rate_9 [2019-11-06 21:12:51,760 INFO L130 BoogieDeclarations]: Found specification of procedure tty_encode_baud_rate [2019-11-06 21:12:51,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_encode_baud_rate_10 [2019-11-06 21:12:51,760 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_get [2019-11-06 21:12:51,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_port_tty_get_7 [2019-11-06 21:12:51,761 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string_flags [2019-11-06 21:12:51,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_insert_flip_string_flags_3 [2019-11-06 21:12:51,761 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string_fixed_flag [2019-11-06 21:12:51,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_insert_flip_string_fixed_flag_5 [2019-11-06 21:12:51,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_insert_flip_string_4 [2019-11-06 21:12:51,761 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string [2019-11-06 21:12:51,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_got_tty [2019-11-06 21:12:51,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_tty [2019-11-06 21:12:51,762 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-06 21:12:51,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-06 21:12:51,762 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-11-06 21:12:51,762 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-11-06 21:12:51,762 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-11-06 21:12:51,763 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-06 21:12:51,763 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-06 21:12:51,763 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-06 21:12:51,763 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-11-06 21:12:51,763 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-06 21:12:51,764 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-11-06 21:12:51,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-06 21:12:51,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-06 21:12:51,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-06 21:12:51,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-11-06 21:12:51,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-11-06 21:12:51,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-06 21:12:51,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-11-06 21:12:51,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-11-06 21:12:51,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-11-06 21:12:51,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-11-06 21:12:51,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_usb_serial_driver_1 [2019-11-06 21:12:51,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_2 [2019-11-06 21:12:51,767 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2019-11-06 21:12:51,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-06 21:12:51,767 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2019-11-06 21:12:51,767 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2019-11-06 21:12:51,768 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2019-11-06 21:12:51,768 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_out [2019-11-06 21:12:51,768 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-11-06 21:12:51,771 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-11-06 21:12:51,772 INFO L130 BoogieDeclarations]: Found specification of procedure dev_printk [2019-11-06 21:12:51,772 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2019-11-06 21:12:51,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_6 [2019-11-06 21:12:51,779 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register [2019-11-06 21:12:51,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-06 21:12:51,779 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2019-11-06 21:12:51,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_11 [2019-11-06 21:12:51,779 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2019-11-06 21:12:51,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-06 21:12:51,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-06 21:12:51,780 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2019-11-06 21:12:51,780 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2019-11-06 21:12:51,780 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2019-11-06 21:12:51,780 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2019-11-06 21:12:51,780 INFO L130 BoogieDeclarations]: Found specification of procedure usb_poison_urb [2019-11-06 21:12:51,780 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2019-11-06 21:12:51,782 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2019-11-06 21:12:51,782 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_serial_port_data [2019-11-06 21:12:51,782 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_serial_port_data [2019-11-06 21:12:51,782 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_register [2019-11-06 21:12:51,783 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister [2019-11-06 21:12:51,783 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_probe [2019-11-06 21:12:51,783 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2019-11-06 21:12:51,783 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_debug_data [2019-11-06 21:12:51,783 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_startup [2019-11-06 21:12:51,783 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_release [2019-11-06 21:12:51,783 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_open [2019-11-06 21:12:51,783 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_close [2019-11-06 21:12:51,784 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_write [2019-11-06 21:12:51,784 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_write_room [2019-11-06 21:12:51,784 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_ioctl [2019-11-06 21:12:51,784 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_tiocmget [2019-11-06 21:12:51,784 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_tiocmset [2019-11-06 21:12:51,784 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_read_int_callback [2019-11-06 21:12:51,784 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_write_callback [2019-11-06 21:12:51,785 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_set_termios [2019-11-06 21:12:51,785 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_init_termios [2019-11-06 21:12:51,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-06 21:12:51,785 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-06 21:12:51,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-06 21:12:51,785 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_init [2019-11-06 21:12:51,785 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_exit [2019-11-06 21:12:51,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_1 [2019-11-06 21:12:51,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_detach_1 [2019-11-06 21:12:51,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-11-06 21:12:51,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-11-06 21:12:51,786 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 21:12:51,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-06 21:12:51,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-11-06 21:12:51,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2019-11-06 21:12:51,786 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-11-06 21:12:51,787 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-11-06 21:12:51,787 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-06 21:12:51,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 21:12:51,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-06 21:12:51,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-06 21:12:51,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 21:12:51,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-11-06 21:12:51,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-11-06 21:12:51,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-06 21:12:51,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-06 21:12:52,862 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-11-06 21:12:59,826 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 21:12:59,828 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-11-06 21:12:59,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:12:59 BoogieIcfgContainer [2019-11-06 21:12:59,830 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 21:12:59,832 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 21:12:59,832 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 21:12:59,835 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 21:12:59,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:12:49" (1/3) ... [2019-11-06 21:12:59,836 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52fbfc6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:12:59, skipping insertion in model container [2019-11-06 21:12:59,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:12:51" (2/3) ... [2019-11-06 21:12:59,837 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52fbfc6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:12:59, skipping insertion in model container [2019-11-06 21:12:59,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:12:59" (3/3) ... [2019-11-06 21:12:59,839 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 [2019-11-06 21:12:59,850 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 21:12:59,863 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 21:12:59,875 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 21:12:59,917 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 21:12:59,917 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 21:12:59,917 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 21:12:59,918 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 21:12:59,918 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 21:12:59,918 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 21:12:59,918 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 21:12:59,918 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 21:12:59,961 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states. [2019-11-06 21:13:00,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-11-06 21:13:00,006 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:13:00,007 INFO L410 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] [2019-11-06 21:13:00,011 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:13:00,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:13:00,018 INFO L82 PathProgramCache]: Analyzing trace with hash 1172024163, now seen corresponding path program 1 times [2019-11-06 21:13:00,028 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:13:00,028 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083330464] [2019-11-06 21:13:00,028 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:13:00,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:03,725 WARN L191 SmtUtils]: Spent 2.80 s on a formula simplification that was a NOOP. DAG size: 712 [2019-11-06 21:13:03,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:03,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:03,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:03,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:03,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:03,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:03,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:03,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:04,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:04,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:04,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:04,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:04,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:04,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:04,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:04,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:04,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:04,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:04,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:04,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:04,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:04,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:04,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:13:04,314 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2019-11-06 21:13:04,315 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083330464] [2019-11-06 21:13:04,318 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:13:04,318 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-06 21:13:04,321 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998384254] [2019-11-06 21:13:04,335 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-06 21:13:04,336 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:13:04,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-06 21:13:04,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-11-06 21:13:04,353 INFO L87 Difference]: Start difference. First operand 780 states. Second operand 9 states. [2019-11-06 21:13:07,138 WARN L191 SmtUtils]: Spent 2.73 s on a formula simplification that was a NOOP. DAG size: 721 [2019-11-06 21:13:15,679 WARN L191 SmtUtils]: Spent 2.60 s on a formula simplification that was a NOOP. DAG size: 723 [2019-11-06 21:13:18,342 WARN L191 SmtUtils]: Spent 2.46 s on a formula simplification that was a NOOP. DAG size: 714