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-linux-3.0/usb_urb-drivers-usb-serial-ir-usb.ko.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:09:16,043 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:09:16,045 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:09:16,057 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:09:16,058 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:09:16,059 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:09:16,060 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:09:16,062 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:09:16,063 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:09:16,064 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:09:16,065 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:09:16,066 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:09:16,067 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:09:16,068 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:09:16,068 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:09:16,070 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:09:16,070 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:09:16,071 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:09:16,073 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:09:16,075 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:09:16,076 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:09:16,077 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:09:16,078 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:09:16,079 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:09:16,081 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:09:16,081 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:09:16,081 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:09:16,082 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:09:16,083 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:09:16,083 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:09:16,084 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:09:16,084 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:09:16,085 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:09:16,086 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:09:16,087 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:09:16,087 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:09:16,088 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:09:16,088 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:09:16,088 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:09:16,089 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:09:16,090 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:09:16,090 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 [2019-09-20 13:09:16,104 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:09:16,104 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:09:16,106 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-20 13:09:16,106 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-20 13:09:16,106 INFO L138 SettingsManager]: * Use SBE=true [2019-09-20 13:09:16,106 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:09:16,106 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:09:16,107 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-20 13:09:16,107 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:09:16,107 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:09:16,107 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:09:16,107 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:09:16,108 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:09:16,108 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:09:16,108 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:09:16,108 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-20 13:09:16,108 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:09:16,108 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:09:16,109 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:09:16,109 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-20 13:09:16,109 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-20 13:09:16,109 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:09:16,109 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:09:16,110 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:09:16,110 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-20 13:09:16,110 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-20 13:09:16,110 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:09:16,110 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-20 13:09:16,111 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:09:16,138 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:09:16,151 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:09:16,154 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:09:16,156 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:09:16,156 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:09:16,157 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-usb-serial-ir-usb.ko.cil.out.i [2019-09-20 13:09:16,222 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b8acf618/ce4147e5fc984c6f9bc59f1f7c0b3df6/FLAGdc33b533c [2019-09-20 13:09:16,974 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:09:16,975 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-usb-serial-ir-usb.ko.cil.out.i [2019-09-20 13:09:17,007 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b8acf618/ce4147e5fc984c6f9bc59f1f7c0b3df6/FLAGdc33b533c [2019-09-20 13:09:17,063 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b8acf618/ce4147e5fc984c6f9bc59f1f7c0b3df6 [2019-09-20 13:09:17,074 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:09:17,076 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:09:17,077 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:09:17,078 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:09:17,082 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:09:17,083 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:09:17" (1/1) ... [2019-09-20 13:09:17,086 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55b9f5bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:09:17, skipping insertion in model container [2019-09-20 13:09:17,087 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:09:17" (1/1) ... [2019-09-20 13:09:17,095 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:09:17,252 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:09:18,514 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:09:18,610 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:09:18,889 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:09:18,987 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:09:18,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:09:18 WrapperNode [2019-09-20 13:09:18,988 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:09:18,989 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:09:18,989 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:09:18,989 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:09:19,004 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:09:18" (1/1) ... [2019-09-20 13:09:19,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:09:18" (1/1) ... [2019-09-20 13:09:19,072 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:09:18" (1/1) ... [2019-09-20 13:09:19,073 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:09:18" (1/1) ... [2019-09-20 13:09:19,169 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:09:18" (1/1) ... [2019-09-20 13:09:19,197 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:09:18" (1/1) ... [2019-09-20 13:09:19,210 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:09:18" (1/1) ... [2019-09-20 13:09:19,228 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:09:19,228 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:09:19,229 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:09:19,229 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:09:19,230 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:09:18" (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 [2019-09-20 13:09:19,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:09:19,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:09:19,317 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-09-20 13:09:19,317 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-09-20 13:09:19,317 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-09-20 13:09:19,318 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-09-20 13:09:19,318 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string [2019-09-20 13:09:19,318 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register [2019-09-20 13:09:19,318 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2019-09-20 13:09:19,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2019-09-20 13:09:19,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_uint_must_check_helper [2019-09-20 13:09:19,319 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_usb_dump_class_desc [2019-09-20 13:09:19,319 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_usb_find_class_desc [2019-09-20 13:09:19,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_xbof_change [2019-09-20 13:09:19,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_startup [2019-09-20 13:09:19,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_open [2019-09-20 13:09:19,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_prepare_write_buffer [2019-09-20 13:09:19,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_process_read_urb [2019-09-20 13:09:19,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_set_termios_callback [2019-09-20 13:09:19,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_set_termios [2019-09-20 13:09:19,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_init [2019-09-20 13:09:19,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_exit [2019-09-20 13:09:19,326 INFO L138 BoogieDeclarations]: Found implementation of procedure init_module [2019-09-20 13:09:19,326 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup_module [2019-09-20 13:09:19,326 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:09:19,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2019-09-20 13:09:19,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2019-09-20 13:09:19,327 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2019-09-20 13:09:19,327 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2019-09-20 13:09:19,327 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2019-09-20 13:09:19,327 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2019-09-20 13:09:19,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-09-20 13:09:19,328 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_out [2019-09-20 13:09:19,328 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_out_r [2019-09-20 13:09:19,328 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-09-20 13:09:19,329 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2019-09-20 13:09:19,329 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-09-20 13:09:19,329 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-09-20 13:09:19,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2019-09-20 13:09:19,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-09-20 13:09:19,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2019-09-20 13:09:19,330 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-09-20 13:09:19,330 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_encode_baud_rate [2019-09-20 13:09:19,330 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_flip_buffer_push [2019-09-20 13:09:19,330 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_get_baud_rate [2019-09-20 13:09:19,331 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string_fixed_flag [2019-09-20 13:09:19,331 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_kref_put [2019-09-20 13:09:19,331 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_get [2019-09-20 13:09:19,332 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_termios_copy_hw [2019-09-20 13:09:19,332 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2019-09-20 13:09:19,332 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2019-09-20 13:09:19,332 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2019-09-20 13:09:19,332 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister [2019-09-20 13:09:19,332 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_open [2019-09-20 13:09:19,333 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_register [2019-09-20 13:09:19,333 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2019-09-20 13:09:19,333 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-09-20 13:09:19,333 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-09-20 13:09:19,333 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:09:19,334 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-09-20 13:09:19,334 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2019-09-20 13:09:19,334 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-09-20 13:09:19,334 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-09-20 13:09:19,334 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-09-20 13:09:19,335 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-09-20 13:09:19,335 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-09-20 13:09:19,335 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-09-20 13:09:19,335 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-09-20 13:09:19,336 INFO L130 BoogieDeclarations]: Found specification of procedure init_module [2019-09-20 13:09:19,336 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup_module [2019-09-20 13:09:19,336 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-09-20 13:09:19,336 INFO L130 BoogieDeclarations]: Found specification of procedure tty_kref_put [2019-09-20 13:09:19,337 INFO L130 BoogieDeclarations]: Found specification of procedure tty_flip_buffer_push [2019-09-20 13:09:19,337 INFO L130 BoogieDeclarations]: Found specification of procedure tty_get_baud_rate [2019-09-20 13:09:19,338 INFO L130 BoogieDeclarations]: Found specification of procedure tty_encode_baud_rate [2019-09-20 13:09:19,338 INFO L130 BoogieDeclarations]: Found specification of procedure tty_termios_copy_hw [2019-09-20 13:09:19,338 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_get [2019-09-20 13:09:19,338 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string_fixed_flag [2019-09-20 13:09:19,339 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string [2019-09-20 13:09:19,339 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2019-09-20 13:09:19,339 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register [2019-09-20 13:09:19,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:09:19,340 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2019-09-20 13:09:19,340 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2019-09-20 13:09:19,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:09:19,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:09:19,340 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2019-09-20 13:09:19,341 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2019-09-20 13:09:19,342 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2019-09-20 13:09:19,342 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2019-09-20 13:09:19,342 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2019-09-20 13:09:19,343 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2019-09-20 13:09:19,343 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2019-09-20 13:09:19,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:09:19,343 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_uint_must_check_helper [2019-09-20 13:09:19,343 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_out [2019-09-20 13:09:19,343 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_out_r [2019-09-20 13:09:19,344 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_register [2019-09-20 13:09:19,344 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister [2019-09-20 13:09:19,344 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_probe [2019-09-20 13:09:19,344 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2019-09-20 13:09:19,344 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_open [2019-09-20 13:09:19,345 INFO L130 BoogieDeclarations]: Found specification of procedure ir_startup [2019-09-20 13:09:19,345 INFO L130 BoogieDeclarations]: Found specification of procedure ir_open [2019-09-20 13:09:19,345 INFO L130 BoogieDeclarations]: Found specification of procedure ir_prepare_write_buffer [2019-09-20 13:09:19,345 INFO L130 BoogieDeclarations]: Found specification of procedure ir_process_read_urb [2019-09-20 13:09:19,345 INFO L130 BoogieDeclarations]: Found specification of procedure ir_set_termios [2019-09-20 13:09:19,346 INFO L130 BoogieDeclarations]: Found specification of procedure irda_usb_dump_class_desc [2019-09-20 13:09:19,346 INFO L130 BoogieDeclarations]: Found specification of procedure irda_usb_find_class_desc [2019-09-20 13:09:19,346 INFO L130 BoogieDeclarations]: Found specification of procedure ir_xbof_change [2019-09-20 13:09:19,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:09:19,346 INFO L130 BoogieDeclarations]: Found specification of procedure ir_set_termios_callback [2019-09-20 13:09:19,347 INFO L130 BoogieDeclarations]: Found specification of procedure ir_init [2019-09-20 13:09:19,347 INFO L130 BoogieDeclarations]: Found specification of procedure ir_exit [2019-09-20 13:09:19,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-09-20 13:09:19,348 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2019-09-20 13:09:19,348 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-09-20 13:09:19,348 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:09:19,348 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:09:19,348 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2019-09-20 13:09:19,349 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2019-09-20 13:09:19,349 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2019-09-20 13:09:19,349 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-09-20 13:09:19,349 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-09-20 13:09:19,351 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-09-20 13:09:19,351 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-09-20 13:09:19,351 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:09:19,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:09:19,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:09:19,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:09:19,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-20 13:09:19,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:09:20,245 WARN L730 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-09-20 13:09:20,416 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##28: assume !false; [2019-09-20 13:09:20,417 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##27: assume false; [2019-09-20 13:09:20,456 WARN L730 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-09-20 13:09:20,549 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume !false; [2019-09-20 13:09:20,550 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##24: assume false; [2019-09-20 13:09:21,024 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2019-09-20 13:09:21,033 WARN L730 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-09-20 13:09:21,074 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume !false; [2019-09-20 13:09:21,074 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume false; [2019-09-20 13:09:23,219 WARN L730 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-09-20 13:09:23,335 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##54: assume false; [2019-09-20 13:09:23,336 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##55: assume !false; [2019-09-20 13:09:23,379 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:09:23,380 INFO L283 CfgBuilder]: Removed 27 assume(true) statements. [2019-09-20 13:09:23,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:09:23 BoogieIcfgContainer [2019-09-20 13:09:23,382 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:09:23,383 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:09:23,383 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:09:23,387 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:09:23,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:09:17" (1/3) ... [2019-09-20 13:09:23,388 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10fb8cc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:09:23, skipping insertion in model container [2019-09-20 13:09:23,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:09:18" (2/3) ... [2019-09-20 13:09:23,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10fb8cc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:09:23, skipping insertion in model container [2019-09-20 13:09:23,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:09:23" (3/3) ... [2019-09-20 13:09:23,393 INFO L109 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-usb-serial-ir-usb.ko.cil.out.i [2019-09-20 13:09:23,403 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:09:23,415 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:09:23,433 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:09:23,472 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-20 13:09:23,473 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:09:23,474 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-20 13:09:23,474 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:09:23,474 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:09:23,474 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:09:23,474 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:09:23,474 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:09:23,474 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:09:23,514 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states. [2019-09-20 13:09:23,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-09-20 13:09:23,523 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:09:23,525 INFO L407 BasicCegarLoop]: trace histogram [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] [2019-09-20 13:09:23,527 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:09:23,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:09:23,533 INFO L82 PathProgramCache]: Analyzing trace with hash 921078484, now seen corresponding path program 1 times [2019-09-20 13:09:23,535 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:09:23,536 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:09:23,625 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:09:23,625 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:09:23,625 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:09:24,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:09:24,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:09:24,286 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:09:24,286 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:09:24,290 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:09:24,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:09:24,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:09:24,308 INFO L87 Difference]: Start difference. First operand 441 states. Second operand 6 states. [2019-09-20 13:09:32,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:09:32,251 INFO L93 Difference]: Finished difference Result 1165 states and 1604 transitions. [2019-09-20 13:09:32,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:09:32,253 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2019-09-20 13:09:32,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:09:32,277 INFO L225 Difference]: With dead ends: 1165 [2019-09-20 13:09:32,278 INFO L226 Difference]: Without dead ends: 737 [2019-09-20 13:09:32,287 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:09:32,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2019-09-20 13:09:32,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 725. [2019-09-20 13:09:32,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 725 states. [2019-09-20 13:09:32,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 902 transitions. [2019-09-20 13:09:32,419 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 902 transitions. Word has length 27 [2019-09-20 13:09:32,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:09:32,419 INFO L475 AbstractCegarLoop]: Abstraction has 725 states and 902 transitions. [2019-09-20 13:09:32,419 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:09:32,420 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 902 transitions. [2019-09-20 13:09:32,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-09-20 13:09:32,421 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:09:32,421 INFO L407 BasicCegarLoop]: trace histogram [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] [2019-09-20 13:09:32,421 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:09:32,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:09:32,422 INFO L82 PathProgramCache]: Analyzing trace with hash -99989870, now seen corresponding path program 1 times [2019-09-20 13:09:32,422 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:09:32,422 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:09:32,430 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:09:32,430 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:09:32,431 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:09:32,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:09:32,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:09:32,709 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:09:32,709 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:09:32,712 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:09:32,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:09:32,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:09:32,713 INFO L87 Difference]: Start difference. First operand 725 states and 902 transitions. Second operand 3 states. [2019-09-20 13:09:32,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:09:32,806 INFO L93 Difference]: Finished difference Result 2100 states and 2637 transitions. [2019-09-20 13:09:32,806 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:09:32,806 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2019-09-20 13:09:32,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:09:32,818 INFO L225 Difference]: With dead ends: 2100 [2019-09-20 13:09:32,819 INFO L226 Difference]: Without dead ends: 1410 [2019-09-20 13:09:32,822 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:09:32,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1410 states. [2019-09-20 13:09:32,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1410 to 1395. [2019-09-20 13:09:32,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1395 states. [2019-09-20 13:09:32,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1395 states to 1395 states and 1749 transitions. [2019-09-20 13:09:32,957 INFO L78 Accepts]: Start accepts. Automaton has 1395 states and 1749 transitions. Word has length 27 [2019-09-20 13:09:32,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:09:32,958 INFO L475 AbstractCegarLoop]: Abstraction has 1395 states and 1749 transitions. [2019-09-20 13:09:32,958 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:09:32,958 INFO L276 IsEmpty]: Start isEmpty. Operand 1395 states and 1749 transitions. [2019-09-20 13:09:32,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-09-20 13:09:32,959 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:09:32,959 INFO L407 BasicCegarLoop]: trace histogram [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] [2019-09-20 13:09:32,960 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:09:32,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:09:32,960 INFO L82 PathProgramCache]: Analyzing trace with hash 1195105585, now seen corresponding path program 1 times [2019-09-20 13:09:32,960 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:09:32,961 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:09:32,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:09:32,967 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:09:32,968 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:09:33,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:09:33,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:09:33,182 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:09:33,182 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:09:33,182 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:09:33,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:09:33,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:09:33,183 INFO L87 Difference]: Start difference. First operand 1395 states and 1749 transitions. Second operand 3 states. [2019-09-20 13:09:33,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:09:33,228 INFO L93 Difference]: Finished difference Result 1397 states and 1750 transitions. [2019-09-20 13:09:33,228 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:09:33,229 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2019-09-20 13:09:33,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:09:33,238 INFO L225 Difference]: With dead ends: 1397 [2019-09-20 13:09:33,238 INFO L226 Difference]: Without dead ends: 1372 [2019-09-20 13:09:33,239 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:09:33,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1372 states. [2019-09-20 13:09:33,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1372 to 1372. [2019-09-20 13:09:33,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1372 states. [2019-09-20 13:09:33,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1372 states to 1372 states and 1719 transitions. [2019-09-20 13:09:33,314 INFO L78 Accepts]: Start accepts. Automaton has 1372 states and 1719 transitions. Word has length 28 [2019-09-20 13:09:33,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:09:33,314 INFO L475 AbstractCegarLoop]: Abstraction has 1372 states and 1719 transitions. [2019-09-20 13:09:33,314 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:09:33,314 INFO L276 IsEmpty]: Start isEmpty. Operand 1372 states and 1719 transitions. [2019-09-20 13:09:33,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-09-20 13:09:33,323 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:09:33,323 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:09:33,324 INFO L418 AbstractCegarLoop]: === Iteration 4 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:09:33,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:09:33,324 INFO L82 PathProgramCache]: Analyzing trace with hash -1665270100, now seen corresponding path program 1 times [2019-09-20 13:09:33,324 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:09:33,324 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:09:33,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:09:33,330 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:09:33,331 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:09:33,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:09:33,646 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:09:33,646 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:09:33,647 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:09:33,647 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:09:33,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:09:33,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:09:33,648 INFO L87 Difference]: Start difference. First operand 1372 states and 1719 transitions. Second operand 6 states. [2019-09-20 13:09:33,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:09:33,757 INFO L93 Difference]: Finished difference Result 2710 states and 3402 transitions. [2019-09-20 13:09:33,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:09:33,758 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 102 [2019-09-20 13:09:33,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:09:33,768 INFO L225 Difference]: With dead ends: 2710 [2019-09-20 13:09:33,768 INFO L226 Difference]: Without dead ends: 1367 [2019-09-20 13:09:33,772 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:09:33,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1367 states. [2019-09-20 13:09:33,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1367 to 1367. [2019-09-20 13:09:33,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1367 states. [2019-09-20 13:09:33,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1367 states to 1367 states and 1712 transitions. [2019-09-20 13:09:33,848 INFO L78 Accepts]: Start accepts. Automaton has 1367 states and 1712 transitions. Word has length 102 [2019-09-20 13:09:33,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:09:33,850 INFO L475 AbstractCegarLoop]: Abstraction has 1367 states and 1712 transitions. [2019-09-20 13:09:33,850 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:09:33,850 INFO L276 IsEmpty]: Start isEmpty. Operand 1367 states and 1712 transitions. [2019-09-20 13:09:33,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-09-20 13:09:33,854 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:09:33,855 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:09:33,855 INFO L418 AbstractCegarLoop]: === Iteration 5 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:09:33,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:09:33,855 INFO L82 PathProgramCache]: Analyzing trace with hash 960569056, now seen corresponding path program 1 times [2019-09-20 13:09:33,856 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:09:33,856 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:09:33,862 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:09:33,862 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:09:33,862 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:09:33,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:09:34,155 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:09:34,156 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:09:34,156 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 13:09:34,157 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:09:34,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:09:34,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:09:34,158 INFO L87 Difference]: Start difference. First operand 1367 states and 1712 transitions. Second operand 5 states. [2019-09-20 13:09:39,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:09:39,164 INFO L93 Difference]: Finished difference Result 2727 states and 3424 transitions. [2019-09-20 13:09:39,164 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:09:39,164 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 112 [2019-09-20 13:09:39,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:09:39,173 INFO L225 Difference]: With dead ends: 2727 [2019-09-20 13:09:39,173 INFO L226 Difference]: Without dead ends: 1393 [2019-09-20 13:09:39,178 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:09:39,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1393 states. [2019-09-20 13:09:39,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1393 to 1367. [2019-09-20 13:09:39,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1367 states. [2019-09-20 13:09:39,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1367 states to 1367 states and 1710 transitions. [2019-09-20 13:09:39,243 INFO L78 Accepts]: Start accepts. Automaton has 1367 states and 1710 transitions. Word has length 112 [2019-09-20 13:09:39,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:09:39,244 INFO L475 AbstractCegarLoop]: Abstraction has 1367 states and 1710 transitions. [2019-09-20 13:09:39,244 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:09:39,244 INFO L276 IsEmpty]: Start isEmpty. Operand 1367 states and 1710 transitions. [2019-09-20 13:09:39,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-09-20 13:09:39,247 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:09:39,247 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:09:39,247 INFO L418 AbstractCegarLoop]: === Iteration 6 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:09:39,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:09:39,248 INFO L82 PathProgramCache]: Analyzing trace with hash 467942882, now seen corresponding path program 1 times [2019-09-20 13:09:39,248 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:09:39,248 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:09:39,253 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:09:39,253 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:09:39,253 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:09:39,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:09:39,451 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:09:39,451 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:09:39,452 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 13:09:39,452 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:09:39,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:09:39,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:09:39,453 INFO L87 Difference]: Start difference. First operand 1367 states and 1710 transitions. Second operand 5 states. [2019-09-20 13:09:39,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:09:39,545 INFO L93 Difference]: Finished difference Result 2674 states and 3360 transitions. [2019-09-20 13:09:39,545 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-20 13:09:39,546 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 112 [2019-09-20 13:09:39,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:09:39,555 INFO L225 Difference]: With dead ends: 2674 [2019-09-20 13:09:39,555 INFO L226 Difference]: Without dead ends: 1340 [2019-09-20 13:09:39,561 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:09:39,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1340 states. [2019-09-20 13:09:39,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1340 to 1336. [2019-09-20 13:09:39,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1336 states. [2019-09-20 13:09:39,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 1336 states and 1665 transitions. [2019-09-20 13:09:39,641 INFO L78 Accepts]: Start accepts. Automaton has 1336 states and 1665 transitions. Word has length 112 [2019-09-20 13:09:39,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:09:39,644 INFO L475 AbstractCegarLoop]: Abstraction has 1336 states and 1665 transitions. [2019-09-20 13:09:39,645 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:09:39,645 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 1665 transitions. [2019-09-20 13:09:39,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-09-20 13:09:39,650 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:09:39,650 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:09:39,650 INFO L418 AbstractCegarLoop]: === Iteration 7 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:09:39,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:09:39,651 INFO L82 PathProgramCache]: Analyzing trace with hash -26259892, now seen corresponding path program 1 times [2019-09-20 13:09:39,651 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:09:39,651 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:09:39,668 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:09:39,668 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:09:39,668 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:09:39,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:09:39,885 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:09:39,888 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:09:39,888 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 13:09:39,889 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:09:39,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:09:39,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:09:39,892 INFO L87 Difference]: Start difference. First operand 1336 states and 1665 transitions. Second operand 5 states. [2019-09-20 13:09:39,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:09:39,980 INFO L93 Difference]: Finished difference Result 2025 states and 2529 transitions. [2019-09-20 13:09:39,981 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-20 13:09:39,981 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 109 [2019-09-20 13:09:39,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:09:39,993 INFO L225 Difference]: With dead ends: 2025 [2019-09-20 13:09:39,993 INFO L226 Difference]: Without dead ends: 1340 [2019-09-20 13:09:39,997 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:09:40,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1340 states. [2019-09-20 13:09:40,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1340 to 1340. [2019-09-20 13:09:40,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1340 states. [2019-09-20 13:09:40,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1340 states to 1340 states and 1667 transitions. [2019-09-20 13:09:40,071 INFO L78 Accepts]: Start accepts. Automaton has 1340 states and 1667 transitions. Word has length 109 [2019-09-20 13:09:40,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:09:40,071 INFO L475 AbstractCegarLoop]: Abstraction has 1340 states and 1667 transitions. [2019-09-20 13:09:40,071 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:09:40,071 INFO L276 IsEmpty]: Start isEmpty. Operand 1340 states and 1667 transitions. [2019-09-20 13:09:40,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-09-20 13:09:40,074 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:09:40,074 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:09:40,074 INFO L418 AbstractCegarLoop]: === Iteration 8 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:09:40,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:09:40,075 INFO L82 PathProgramCache]: Analyzing trace with hash 1161044579, now seen corresponding path program 1 times [2019-09-20 13:09:40,075 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:09:40,075 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:09:40,080 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:09:40,080 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:09:40,080 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:09:40,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:09:40,350 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:09:40,351 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:09:40,351 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 13:09:40,351 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:09:40,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:09:40,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:09:40,352 INFO L87 Difference]: Start difference. First operand 1340 states and 1667 transitions. Second operand 5 states. [2019-09-20 13:09:46,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:09:46,378 INFO L93 Difference]: Finished difference Result 2668 states and 3327 transitions. [2019-09-20 13:09:46,378 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:09:46,379 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 112 [2019-09-20 13:09:46,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:09:46,389 INFO L225 Difference]: With dead ends: 2668 [2019-09-20 13:09:46,390 INFO L226 Difference]: Without dead ends: 1361 [2019-09-20 13:09:46,395 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:09:46,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1361 states. [2019-09-20 13:09:46,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1361 to 1336. [2019-09-20 13:09:46,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1336 states. [2019-09-20 13:09:46,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 1336 states and 1659 transitions. [2019-09-20 13:09:46,499 INFO L78 Accepts]: Start accepts. Automaton has 1336 states and 1659 transitions. Word has length 112 [2019-09-20 13:09:46,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:09:46,500 INFO L475 AbstractCegarLoop]: Abstraction has 1336 states and 1659 transitions. [2019-09-20 13:09:46,500 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:09:46,500 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 1659 transitions. [2019-09-20 13:09:46,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-09-20 13:09:46,508 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:09:46,508 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:09:46,508 INFO L418 AbstractCegarLoop]: === Iteration 9 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:09:46,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:09:46,509 INFO L82 PathProgramCache]: Analyzing trace with hash 971083495, now seen corresponding path program 1 times [2019-09-20 13:09:46,509 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:09:46,509 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:09:46,521 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:09:46,522 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:09:46,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:09:46,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:09:46,879 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:09:46,879 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:09:46,880 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:09:46,880 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:09:46,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:09:46,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:09:46,881 INFO L87 Difference]: Start difference. First operand 1336 states and 1659 transitions. Second operand 6 states. [2019-09-20 13:09:51,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:09:51,344 INFO L93 Difference]: Finished difference Result 2029 states and 2531 transitions. [2019-09-20 13:09:51,344 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:09:51,345 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 112 [2019-09-20 13:09:51,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:09:51,364 INFO L225 Difference]: With dead ends: 2029 [2019-09-20 13:09:51,365 INFO L226 Difference]: Without dead ends: 2026 [2019-09-20 13:09:51,366 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:09:51,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2026 states. [2019-09-20 13:09:51,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2026 to 2008. [2019-09-20 13:09:51,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2008 states. [2019-09-20 13:09:51,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2008 states to 2008 states and 2511 transitions. [2019-09-20 13:09:51,487 INFO L78 Accepts]: Start accepts. Automaton has 2008 states and 2511 transitions. Word has length 112 [2019-09-20 13:09:51,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:09:51,491 INFO L475 AbstractCegarLoop]: Abstraction has 2008 states and 2511 transitions. [2019-09-20 13:09:51,491 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:09:51,491 INFO L276 IsEmpty]: Start isEmpty. Operand 2008 states and 2511 transitions. [2019-09-20 13:09:51,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-09-20 13:09:51,498 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:09:51,499 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 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, 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] [2019-09-20 13:09:51,499 INFO L418 AbstractCegarLoop]: === Iteration 10 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:09:51,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:09:51,500 INFO L82 PathProgramCache]: Analyzing trace with hash 1928323846, now seen corresponding path program 1 times [2019-09-20 13:09:51,500 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:09:51,500 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:09:51,511 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:09:51,511 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:09:51,511 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:09:51,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat