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 --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-usb-serial-ir-usb.ko.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 00:21:34,141 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 00:21:34,144 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 00:21:34,162 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 00:21:34,162 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 00:21:34,163 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 00:21:34,164 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 00:21:34,166 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 00:21:34,170 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 00:21:34,171 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 00:21:34,174 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 00:21:34,175 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 00:21:34,175 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 00:21:34,179 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 00:21:34,180 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 00:21:34,181 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 00:21:34,182 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 00:21:34,183 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 00:21:34,185 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 00:21:34,186 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 00:21:34,189 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 00:21:34,191 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 00:21:34,192 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 00:21:34,192 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 00:21:34,195 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 00:21:34,195 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 00:21:34,196 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 00:21:34,196 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 00:21:34,197 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 00:21:34,198 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 00:21:34,198 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 00:21:34,200 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 00:21:34,201 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 00:21:34,203 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 00:21:34,204 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 00:21:34,204 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 00:21:34,207 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 00:21:34,207 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 00:21:34,207 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 00:21:34,208 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 00:21:34,211 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 00:21:34,211 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 00:21:34,228 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 00:21:34,228 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 00:21:34,229 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 00:21:34,230 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 00:21:34,230 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 00:21:34,230 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 00:21:34,230 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 00:21:34,230 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 00:21:34,231 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 00:21:34,231 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 00:21:34,231 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 00:21:34,231 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 00:21:34,231 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 00:21:34,232 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 00:21:34,232 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 00:21:34,232 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 00:21:34,232 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 00:21:34,233 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 00:21:34,233 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 00:21:34,233 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 00:21:34,233 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 00:21:34,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 00:21:34,234 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 00:21:34,234 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 00:21:34,234 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 00:21:34,234 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 00:21:34,235 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 00:21:34,235 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 00:21:34,235 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 00:21:34,548 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 00:21:34,561 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 00:21:34,564 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 00:21:34,565 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 00:21:34,566 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 00:21:34,566 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-usb-serial-ir-usb.ko.cil.out.i [2019-10-15 00:21:34,646 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/915704886/ee89aa720bc24ff1a8a06df785a9b41f/FLAGb65d95027 [2019-10-15 00:21:35,438 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 00:21:35,438 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-usb-serial-ir-usb.ko.cil.out.i [2019-10-15 00:21:35,492 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/915704886/ee89aa720bc24ff1a8a06df785a9b41f/FLAGb65d95027 [2019-10-15 00:21:35,977 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/915704886/ee89aa720bc24ff1a8a06df785a9b41f [2019-10-15 00:21:35,989 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 00:21:35,990 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 00:21:35,991 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 00:21:35,992 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 00:21:35,995 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 00:21:35,996 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:21:35" (1/1) ... [2019-10-15 00:21:35,999 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62309fa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:21:35, skipping insertion in model container [2019-10-15 00:21:35,999 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:21:35" (1/1) ... [2019-10-15 00:21:36,007 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 00:21:36,115 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 00:21:37,184 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 00:21:37,277 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 00:21:37,606 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 00:21:37,744 INFO L192 MainTranslator]: Completed translation [2019-10-15 00:21:37,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:21:37 WrapperNode [2019-10-15 00:21:37,745 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 00:21:37,746 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 00:21:37,746 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 00:21:37,747 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 00:21:37,766 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:21:37" (1/1) ... [2019-10-15 00:21:37,766 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:21:37" (1/1) ... [2019-10-15 00:21:37,853 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:21:37" (1/1) ... [2019-10-15 00:21:37,856 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:21:37" (1/1) ... [2019-10-15 00:21:37,946 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:21:37" (1/1) ... [2019-10-15 00:21:37,982 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:21:37" (1/1) ... [2019-10-15 00:21:38,006 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:21:37" (1/1) ... [2019-10-15 00:21:38,028 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 00:21:38,028 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 00:21:38,028 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 00:21:38,029 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 00:21:38,030 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:21:37" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 00:21:38,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 00:21:38,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 00:21:38,156 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-10-15 00:21:38,157 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-10-15 00:21:38,157 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-15 00:21:38,157 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-15 00:21:38,157 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string [2019-10-15 00:21:38,157 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register [2019-10-15 00:21:38,158 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2019-10-15 00:21:38,158 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2019-10-15 00:21:38,158 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_uint_must_check_helper [2019-10-15 00:21:38,158 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_usb_dump_class_desc [2019-10-15 00:21:38,158 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_usb_find_class_desc [2019-10-15 00:21:38,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_xbof_change [2019-10-15 00:21:38,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_startup [2019-10-15 00:21:38,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_open [2019-10-15 00:21:38,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_prepare_write_buffer [2019-10-15 00:21:38,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_process_read_urb [2019-10-15 00:21:38,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_set_termios_callback [2019-10-15 00:21:38,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_set_termios [2019-10-15 00:21:38,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_init [2019-10-15 00:21:38,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_exit [2019-10-15 00:21:38,160 INFO L138 BoogieDeclarations]: Found implementation of procedure init_module [2019-10-15 00:21:38,161 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup_module [2019-10-15 00:21:38,161 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 00:21:38,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2019-10-15 00:21:38,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2019-10-15 00:21:38,161 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2019-10-15 00:21:38,161 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2019-10-15 00:21:38,162 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2019-10-15 00:21:38,162 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2019-10-15 00:21:38,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-15 00:21:38,162 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_out [2019-10-15 00:21:38,162 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_out_r [2019-10-15 00:21:38,162 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-15 00:21:38,163 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2019-10-15 00:21:38,163 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-10-15 00:21:38,163 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-10-15 00:21:38,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2019-10-15 00:21:38,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-15 00:21:38,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2019-10-15 00:21:38,164 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-15 00:21:38,164 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_encode_baud_rate [2019-10-15 00:21:38,164 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_flip_buffer_push [2019-10-15 00:21:38,164 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_get_baud_rate [2019-10-15 00:21:38,164 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string_fixed_flag [2019-10-15 00:21:38,164 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_kref_put [2019-10-15 00:21:38,165 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_get [2019-10-15 00:21:38,165 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_termios_copy_hw [2019-10-15 00:21:38,165 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2019-10-15 00:21:38,165 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2019-10-15 00:21:38,165 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2019-10-15 00:21:38,165 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister [2019-10-15 00:21:38,166 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_open [2019-10-15 00:21:38,166 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_register [2019-10-15 00:21:38,166 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2019-10-15 00:21:38,166 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-15 00:21:38,166 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-15 00:21:38,166 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 00:21:38,167 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-15 00:21:38,167 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2019-10-15 00:21:38,167 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-10-15 00:21:38,167 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-10-15 00:21:38,167 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-10-15 00:21:38,167 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-15 00:21:38,168 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-15 00:21:38,168 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-15 00:21:38,168 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-15 00:21:38,168 INFO L130 BoogieDeclarations]: Found specification of procedure init_module [2019-10-15 00:21:38,168 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup_module [2019-10-15 00:21:38,168 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-10-15 00:21:38,169 INFO L130 BoogieDeclarations]: Found specification of procedure tty_kref_put [2019-10-15 00:21:38,169 INFO L130 BoogieDeclarations]: Found specification of procedure tty_flip_buffer_push [2019-10-15 00:21:38,169 INFO L130 BoogieDeclarations]: Found specification of procedure tty_get_baud_rate [2019-10-15 00:21:38,169 INFO L130 BoogieDeclarations]: Found specification of procedure tty_encode_baud_rate [2019-10-15 00:21:38,169 INFO L130 BoogieDeclarations]: Found specification of procedure tty_termios_copy_hw [2019-10-15 00:21:38,169 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_get [2019-10-15 00:21:38,169 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string_fixed_flag [2019-10-15 00:21:38,170 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string [2019-10-15 00:21:38,170 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2019-10-15 00:21:38,170 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register [2019-10-15 00:21:38,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 00:21:38,170 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2019-10-15 00:21:38,170 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2019-10-15 00:21:38,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 00:21:38,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 00:21:38,171 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2019-10-15 00:21:38,171 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2019-10-15 00:21:38,171 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2019-10-15 00:21:38,171 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2019-10-15 00:21:38,172 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2019-10-15 00:21:38,172 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2019-10-15 00:21:38,172 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2019-10-15 00:21:38,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 00:21:38,172 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_uint_must_check_helper [2019-10-15 00:21:38,172 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_out [2019-10-15 00:21:38,172 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_out_r [2019-10-15 00:21:38,173 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_register [2019-10-15 00:21:38,173 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister [2019-10-15 00:21:38,173 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_probe [2019-10-15 00:21:38,173 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2019-10-15 00:21:38,173 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_open [2019-10-15 00:21:38,173 INFO L130 BoogieDeclarations]: Found specification of procedure ir_startup [2019-10-15 00:21:38,173 INFO L130 BoogieDeclarations]: Found specification of procedure ir_open [2019-10-15 00:21:38,174 INFO L130 BoogieDeclarations]: Found specification of procedure ir_prepare_write_buffer [2019-10-15 00:21:38,174 INFO L130 BoogieDeclarations]: Found specification of procedure ir_process_read_urb [2019-10-15 00:21:38,174 INFO L130 BoogieDeclarations]: Found specification of procedure ir_set_termios [2019-10-15 00:21:38,174 INFO L130 BoogieDeclarations]: Found specification of procedure irda_usb_dump_class_desc [2019-10-15 00:21:38,174 INFO L130 BoogieDeclarations]: Found specification of procedure irda_usb_find_class_desc [2019-10-15 00:21:38,174 INFO L130 BoogieDeclarations]: Found specification of procedure ir_xbof_change [2019-10-15 00:21:38,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 00:21:38,175 INFO L130 BoogieDeclarations]: Found specification of procedure ir_set_termios_callback [2019-10-15 00:21:38,175 INFO L130 BoogieDeclarations]: Found specification of procedure ir_init [2019-10-15 00:21:38,175 INFO L130 BoogieDeclarations]: Found specification of procedure ir_exit [2019-10-15 00:21:38,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-15 00:21:38,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2019-10-15 00:21:38,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-15 00:21:38,175 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 00:21:38,176 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 00:21:38,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2019-10-15 00:21:38,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2019-10-15 00:21:38,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2019-10-15 00:21:38,176 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-15 00:21:38,176 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-15 00:21:38,176 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-15 00:21:38,177 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-15 00:21:38,177 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 00:21:38,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 00:21:38,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 00:21:38,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 00:21:38,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-15 00:21:38,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 00:21:38,802 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-15 00:21:38,930 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##28: assume !false; [2019-10-15 00:21:38,930 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##27: assume false; [2019-10-15 00:21:38,973 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-15 00:21:39,038 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume !false; [2019-10-15 00:21:39,039 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##24: assume false; [2019-10-15 00:21:39,438 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2019-10-15 00:21:39,445 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-15 00:21:39,478 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume !false; [2019-10-15 00:21:39,478 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume false; [2019-10-15 00:21:42,199 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-15 00:21:42,282 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##54: assume false; [2019-10-15 00:21:42,283 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##55: assume !false; [2019-10-15 00:21:42,316 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 00:21:42,316 INFO L284 CfgBuilder]: Removed 27 assume(true) statements. [2019-10-15 00:21:42,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:21:42 BoogieIcfgContainer [2019-10-15 00:21:42,318 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 00:21:42,320 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 00:21:42,320 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 00:21:42,323 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 00:21:42,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 12:21:35" (1/3) ... [2019-10-15 00:21:42,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14ab2830 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:21:42, skipping insertion in model container [2019-10-15 00:21:42,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:21:37" (2/3) ... [2019-10-15 00:21:42,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14ab2830 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:21:42, skipping insertion in model container [2019-10-15 00:21:42,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:21:42" (3/3) ... [2019-10-15 00:21:42,327 INFO L109 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-usb-serial-ir-usb.ko.cil.out.i [2019-10-15 00:21:42,338 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 00:21:42,348 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 00:21:42,360 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 00:21:42,400 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 00:21:42,400 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 00:21:42,400 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 00:21:42,401 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 00:21:42,401 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 00:21:42,401 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 00:21:42,401 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 00:21:42,401 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 00:21:42,442 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states. [2019-10-15 00:21:42,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-15 00:21:42,451 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:21:42,452 INFO L380 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] [2019-10-15 00:21:42,456 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:21:42,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:21:42,464 INFO L82 PathProgramCache]: Analyzing trace with hash 921078484, now seen corresponding path program 1 times [2019-10-15 00:21:42,474 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:21:42,475 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412046381] [2019-10-15 00:21:42,475 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:42,475 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:42,475 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:21:42,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:21:43,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 00:21:43,292 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412046381] [2019-10-15 00:21:43,293 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:21:43,294 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 00:21:43,298 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166144297] [2019-10-15 00:21:43,304 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 00:21:43,308 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:21:43,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 00:21:43,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-15 00:21:43,326 INFO L87 Difference]: Start difference. First operand 441 states. Second operand 6 states. [2019-10-15 00:21:51,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:21:51,457 INFO L93 Difference]: Finished difference Result 1165 states and 1604 transitions. [2019-10-15 00:21:51,461 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 00:21:51,463 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2019-10-15 00:21:51,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:21:51,486 INFO L225 Difference]: With dead ends: 1165 [2019-10-15 00:21:51,486 INFO L226 Difference]: Without dead ends: 737 [2019-10-15 00:21:51,496 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-10-15 00:21:51,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2019-10-15 00:21:51,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 725. [2019-10-15 00:21:51,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 725 states. [2019-10-15 00:21:51,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 902 transitions. [2019-10-15 00:21:51,619 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 902 transitions. Word has length 27 [2019-10-15 00:21:51,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:21:51,619 INFO L462 AbstractCegarLoop]: Abstraction has 725 states and 902 transitions. [2019-10-15 00:21:51,619 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 00:21:51,619 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 902 transitions. [2019-10-15 00:21:51,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-15 00:21:51,621 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:21:51,621 INFO L380 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] [2019-10-15 00:21:51,621 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:21:51,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:21:51,622 INFO L82 PathProgramCache]: Analyzing trace with hash -99989870, now seen corresponding path program 1 times [2019-10-15 00:21:51,622 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:21:51,622 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131331320] [2019-10-15 00:21:51,622 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:51,623 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:51,623 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:21:51,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:21:51,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 00:21:51,855 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131331320] [2019-10-15 00:21:51,855 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:21:51,856 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:21:51,856 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589386748] [2019-10-15 00:21:51,857 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:21:51,858 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:21:51,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:21:51,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:21:51,859 INFO L87 Difference]: Start difference. First operand 725 states and 902 transitions. Second operand 3 states. [2019-10-15 00:21:51,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:21:51,954 INFO L93 Difference]: Finished difference Result 2100 states and 2637 transitions. [2019-10-15 00:21:51,954 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:21:51,955 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2019-10-15 00:21:51,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:21:51,972 INFO L225 Difference]: With dead ends: 2100 [2019-10-15 00:21:51,972 INFO L226 Difference]: Without dead ends: 1410 [2019-10-15 00:21:51,976 INFO L600 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 [2019-10-15 00:21:51,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1410 states. [2019-10-15 00:21:52,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1410 to 1395. [2019-10-15 00:21:52,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1395 states. [2019-10-15 00:21:52,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1395 states to 1395 states and 1749 transitions. [2019-10-15 00:21:52,107 INFO L78 Accepts]: Start accepts. Automaton has 1395 states and 1749 transitions. Word has length 27 [2019-10-15 00:21:52,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:21:52,108 INFO L462 AbstractCegarLoop]: Abstraction has 1395 states and 1749 transitions. [2019-10-15 00:21:52,109 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:21:52,109 INFO L276 IsEmpty]: Start isEmpty. Operand 1395 states and 1749 transitions. [2019-10-15 00:21:52,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-10-15 00:21:52,110 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:21:52,110 INFO L380 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] [2019-10-15 00:21:52,110 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:21:52,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:21:52,111 INFO L82 PathProgramCache]: Analyzing trace with hash 1195105585, now seen corresponding path program 1 times [2019-10-15 00:21:52,111 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:21:52,111 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77118713] [2019-10-15 00:21:52,111 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:52,112 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:52,112 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:21:52,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:21:52,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 00:21:52,363 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77118713] [2019-10-15 00:21:52,363 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:21:52,364 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:21:52,364 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314517902] [2019-10-15 00:21:52,365 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:21:52,365 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:21:52,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:21:52,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:21:52,370 INFO L87 Difference]: Start difference. First operand 1395 states and 1749 transitions. Second operand 3 states. [2019-10-15 00:21:52,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:21:52,430 INFO L93 Difference]: Finished difference Result 1397 states and 1750 transitions. [2019-10-15 00:21:52,434 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:21:52,434 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2019-10-15 00:21:52,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:21:52,444 INFO L225 Difference]: With dead ends: 1397 [2019-10-15 00:21:52,445 INFO L226 Difference]: Without dead ends: 1372 [2019-10-15 00:21:52,446 INFO L600 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 [2019-10-15 00:21:52,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1372 states. [2019-10-15 00:21:52,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1372 to 1372. [2019-10-15 00:21:52,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1372 states. [2019-10-15 00:21:52,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1372 states to 1372 states and 1719 transitions. [2019-10-15 00:21:52,529 INFO L78 Accepts]: Start accepts. Automaton has 1372 states and 1719 transitions. Word has length 28 [2019-10-15 00:21:52,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:21:52,530 INFO L462 AbstractCegarLoop]: Abstraction has 1372 states and 1719 transitions. [2019-10-15 00:21:52,530 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:21:52,530 INFO L276 IsEmpty]: Start isEmpty. Operand 1372 states and 1719 transitions. [2019-10-15 00:21:52,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-10-15 00:21:52,543 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:21:52,543 INFO L380 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] [2019-10-15 00:21:52,544 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:21:52,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:21:52,544 INFO L82 PathProgramCache]: Analyzing trace with hash -1665270100, now seen corresponding path program 1 times [2019-10-15 00:21:52,544 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:21:52,544 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233457246] [2019-10-15 00:21:52,545 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:52,545 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:52,545 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:21:52,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:21:52,940 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-15 00:21:52,941 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233457246] [2019-10-15 00:21:52,941 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:21:52,942 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 00:21:52,942 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733192612] [2019-10-15 00:21:52,944 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 00:21:52,944 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:21:52,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 00:21:52,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 00:21:52,945 INFO L87 Difference]: Start difference. First operand 1372 states and 1719 transitions. Second operand 6 states. [2019-10-15 00:21:53,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:21:53,065 INFO L93 Difference]: Finished difference Result 2710 states and 3402 transitions. [2019-10-15 00:21:53,065 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 00:21:53,066 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 102 [2019-10-15 00:21:53,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:21:53,075 INFO L225 Difference]: With dead ends: 2710 [2019-10-15 00:21:53,076 INFO L226 Difference]: Without dead ends: 1367 [2019-10-15 00:21:53,080 INFO L600 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 [2019-10-15 00:21:53,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1367 states. [2019-10-15 00:21:53,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1367 to 1367. [2019-10-15 00:21:53,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1367 states. [2019-10-15 00:21:53,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1367 states to 1367 states and 1712 transitions. [2019-10-15 00:21:53,159 INFO L78 Accepts]: Start accepts. Automaton has 1367 states and 1712 transitions. Word has length 102 [2019-10-15 00:21:53,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:21:53,161 INFO L462 AbstractCegarLoop]: Abstraction has 1367 states and 1712 transitions. [2019-10-15 00:21:53,162 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 00:21:53,162 INFO L276 IsEmpty]: Start isEmpty. Operand 1367 states and 1712 transitions. [2019-10-15 00:21:53,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-10-15 00:21:53,166 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:21:53,167 INFO L380 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] [2019-10-15 00:21:53,167 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:21:53,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:21:53,168 INFO L82 PathProgramCache]: Analyzing trace with hash 960569056, now seen corresponding path program 1 times [2019-10-15 00:21:53,168 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:21:53,168 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068956187] [2019-10-15 00:21:53,168 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:53,169 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:53,169 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:21:53,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:21:53,498 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-15 00:21:53,498 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068956187] [2019-10-15 00:21:53,499 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:21:53,499 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 00:21:53,499 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237144712] [2019-10-15 00:21:53,500 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 00:21:53,500 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:21:53,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 00:21:53,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 00:21:53,501 INFO L87 Difference]: Start difference. First operand 1367 states and 1712 transitions. Second operand 5 states. [2019-10-15 00:21:59,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:21:59,230 INFO L93 Difference]: Finished difference Result 2727 states and 3424 transitions. [2019-10-15 00:21:59,231 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 00:21:59,231 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 112 [2019-10-15 00:21:59,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:21:59,244 INFO L225 Difference]: With dead ends: 2727 [2019-10-15 00:21:59,244 INFO L226 Difference]: Without dead ends: 1393 [2019-10-15 00:21:59,251 INFO L600 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 [2019-10-15 00:21:59,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1393 states. [2019-10-15 00:21:59,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1393 to 1367. [2019-10-15 00:21:59,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1367 states. [2019-10-15 00:21:59,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1367 states to 1367 states and 1710 transitions. [2019-10-15 00:21:59,423 INFO L78 Accepts]: Start accepts. Automaton has 1367 states and 1710 transitions. Word has length 112 [2019-10-15 00:21:59,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:21:59,424 INFO L462 AbstractCegarLoop]: Abstraction has 1367 states and 1710 transitions. [2019-10-15 00:21:59,424 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 00:21:59,424 INFO L276 IsEmpty]: Start isEmpty. Operand 1367 states and 1710 transitions. [2019-10-15 00:21:59,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-10-15 00:21:59,438 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:21:59,438 INFO L380 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] [2019-10-15 00:21:59,438 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:21:59,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:21:59,439 INFO L82 PathProgramCache]: Analyzing trace with hash 467942882, now seen corresponding path program 1 times [2019-10-15 00:21:59,439 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:21:59,439 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925995918] [2019-10-15 00:21:59,439 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:59,440 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:59,440 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:21:59,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:21:59,759 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-15 00:21:59,760 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925995918] [2019-10-15 00:21:59,761 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:21:59,762 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 00:21:59,764 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164560624] [2019-10-15 00:21:59,765 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 00:21:59,765 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:21:59,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 00:21:59,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 00:21:59,767 INFO L87 Difference]: Start difference. First operand 1367 states and 1710 transitions. Second operand 5 states. [2019-10-15 00:21:59,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:21:59,881 INFO L93 Difference]: Finished difference Result 2674 states and 3360 transitions. [2019-10-15 00:21:59,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 00:21:59,882 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 112 [2019-10-15 00:21:59,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:21:59,905 INFO L225 Difference]: With dead ends: 2674 [2019-10-15 00:21:59,908 INFO L226 Difference]: Without dead ends: 1340 [2019-10-15 00:21:59,914 INFO L600 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 [2019-10-15 00:21:59,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1340 states. [2019-10-15 00:22:00,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1340 to 1336. [2019-10-15 00:22:00,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1336 states. [2019-10-15 00:22:00,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 1336 states and 1665 transitions. [2019-10-15 00:22:00,026 INFO L78 Accepts]: Start accepts. Automaton has 1336 states and 1665 transitions. Word has length 112 [2019-10-15 00:22:00,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:22:00,030 INFO L462 AbstractCegarLoop]: Abstraction has 1336 states and 1665 transitions. [2019-10-15 00:22:00,030 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 00:22:00,030 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 1665 transitions. [2019-10-15 00:22:00,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-10-15 00:22:00,038 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:22:00,039 INFO L380 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] [2019-10-15 00:22:00,039 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:22:00,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:22:00,040 INFO L82 PathProgramCache]: Analyzing trace with hash -26259892, now seen corresponding path program 1 times [2019-10-15 00:22:00,040 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:22:00,040 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591918978] [2019-10-15 00:22:00,041 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:22:00,041 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:22:00,041 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:22:00,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:22:00,387 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 00:22:00,387 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591918978] [2019-10-15 00:22:00,388 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:22:00,388 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 00:22:00,388 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757372090] [2019-10-15 00:22:00,389 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 00:22:00,390 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:22:00,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 00:22:00,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 00:22:00,390 INFO L87 Difference]: Start difference. First operand 1336 states and 1665 transitions. Second operand 5 states. [2019-10-15 00:22:00,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:22:00,467 INFO L93 Difference]: Finished difference Result 2025 states and 2529 transitions. [2019-10-15 00:22:00,467 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 00:22:00,467 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 109 [2019-10-15 00:22:00,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:22:00,477 INFO L225 Difference]: With dead ends: 2025 [2019-10-15 00:22:00,477 INFO L226 Difference]: Without dead ends: 1340 [2019-10-15 00:22:00,480 INFO L600 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 [2019-10-15 00:22:00,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1340 states. [2019-10-15 00:22:00,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1340 to 1340. [2019-10-15 00:22:00,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1340 states. [2019-10-15 00:22:00,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1340 states to 1340 states and 1667 transitions. [2019-10-15 00:22:00,554 INFO L78 Accepts]: Start accepts. Automaton has 1340 states and 1667 transitions. Word has length 109 [2019-10-15 00:22:00,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:22:00,555 INFO L462 AbstractCegarLoop]: Abstraction has 1340 states and 1667 transitions. [2019-10-15 00:22:00,555 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 00:22:00,555 INFO L276 IsEmpty]: Start isEmpty. Operand 1340 states and 1667 transitions. [2019-10-15 00:22:00,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-10-15 00:22:00,558 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:22:00,558 INFO L380 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] [2019-10-15 00:22:00,559 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:22:00,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:22:00,559 INFO L82 PathProgramCache]: Analyzing trace with hash 1161044579, now seen corresponding path program 1 times [2019-10-15 00:22:00,559 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:22:00,560 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588267006] [2019-10-15 00:22:00,560 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:22:00,560 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:22:00,560 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:22:00,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:22:00,803 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-15 00:22:00,803 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588267006] [2019-10-15 00:22:00,804 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:22:00,804 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 00:22:00,804 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753800578] [2019-10-15 00:22:00,805 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 00:22:00,805 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:22:00,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 00:22:00,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 00:22:00,805 INFO L87 Difference]: Start difference. First operand 1340 states and 1667 transitions. Second operand 5 states. [2019-10-15 00:22:05,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:22:05,842 INFO L93 Difference]: Finished difference Result 2668 states and 3327 transitions. [2019-10-15 00:22:05,843 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 00:22:05,843 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 112 [2019-10-15 00:22:05,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:22:05,852 INFO L225 Difference]: With dead ends: 2668 [2019-10-15 00:22:05,852 INFO L226 Difference]: Without dead ends: 1361 [2019-10-15 00:22:05,857 INFO L600 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 [2019-10-15 00:22:05,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1361 states. [2019-10-15 00:22:05,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1361 to 1336. [2019-10-15 00:22:05,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1336 states. [2019-10-15 00:22:05,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 1336 states and 1659 transitions. [2019-10-15 00:22:05,940 INFO L78 Accepts]: Start accepts. Automaton has 1336 states and 1659 transitions. Word has length 112 [2019-10-15 00:22:05,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:22:05,940 INFO L462 AbstractCegarLoop]: Abstraction has 1336 states and 1659 transitions. [2019-10-15 00:22:05,940 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 00:22:05,941 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 1659 transitions. [2019-10-15 00:22:05,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-10-15 00:22:05,943 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:22:05,944 INFO L380 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] [2019-10-15 00:22:05,944 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:22:05,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:22:05,944 INFO L82 PathProgramCache]: Analyzing trace with hash 971083495, now seen corresponding path program 1 times [2019-10-15 00:22:05,945 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:22:05,945 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350646170] [2019-10-15 00:22:05,946 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:22:05,946 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:22:05,946 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:22:06,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:22:06,264 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-15 00:22:06,265 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350646170] [2019-10-15 00:22:06,266 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:22:06,266 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 00:22:06,266 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695314266] [2019-10-15 00:22:06,266 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 00:22:06,267 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:22:06,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 00:22:06,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-15 00:22:06,267 INFO L87 Difference]: Start difference. First operand 1336 states and 1659 transitions. Second operand 6 states. [2019-10-15 00:22:09,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:22:09,781 INFO L93 Difference]: Finished difference Result 2029 states and 2531 transitions. [2019-10-15 00:22:09,781 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 00:22:09,782 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 112 [2019-10-15 00:22:09,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:22:09,794 INFO L225 Difference]: With dead ends: 2029 [2019-10-15 00:22:09,794 INFO L226 Difference]: Without dead ends: 2026 [2019-10-15 00:22:09,796 INFO L600 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 [2019-10-15 00:22:09,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2026 states. [2019-10-15 00:22:09,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2026 to 2008. [2019-10-15 00:22:09,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2008 states. [2019-10-15 00:22:09,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2008 states to 2008 states and 2511 transitions. [2019-10-15 00:22:09,891 INFO L78 Accepts]: Start accepts. Automaton has 2008 states and 2511 transitions. Word has length 112 [2019-10-15 00:22:09,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:22:09,892 INFO L462 AbstractCegarLoop]: Abstraction has 2008 states and 2511 transitions. [2019-10-15 00:22:09,892 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 00:22:09,892 INFO L276 IsEmpty]: Start isEmpty. Operand 2008 states and 2511 transitions. [2019-10-15 00:22:09,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-10-15 00:22:09,896 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:22:09,896 INFO L380 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] [2019-10-15 00:22:09,897 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:22:09,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:22:09,897 INFO L82 PathProgramCache]: Analyzing trace with hash 1928323846, now seen corresponding path program 1 times [2019-10-15 00:22:09,897 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:22:09,898 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801386817] [2019-10-15 00:22:09,898 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:22:09,898 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:22:09,898 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:22:09,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:22:10,148 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-15 00:22:10,149 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801386817] [2019-10-15 00:22:10,150 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:22:10,150 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 00:22:10,150 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45923879] [2019-10-15 00:22:10,151 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 00:22:10,151 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:22:10,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 00:22:10,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 00:22:10,156 INFO L87 Difference]: Start difference. First operand 2008 states and 2511 transitions. Second operand 6 states.