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-misc-iowarrior.ko.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 00:21:32,667 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 00:21:32,670 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 00:21:32,684 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 00:21:32,685 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 00:21:32,687 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 00:21:32,689 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 00:21:32,690 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 00:21:32,692 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 00:21:32,693 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 00:21:32,694 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 00:21:32,695 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 00:21:32,696 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 00:21:32,697 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 00:21:32,698 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 00:21:32,699 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 00:21:32,700 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 00:21:32,701 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 00:21:32,702 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 00:21:32,704 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 00:21:32,706 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 00:21:32,707 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 00:21:32,708 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 00:21:32,709 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 00:21:32,712 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 00:21:32,712 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 00:21:32,712 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 00:21:32,713 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 00:21:32,713 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 00:21:32,715 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 00:21:32,716 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 00:21:32,717 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 00:21:32,718 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 00:21:32,719 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 00:21:32,720 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 00:21:32,721 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 00:21:32,724 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 00:21:32,724 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 00:21:32,724 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 00:21:32,725 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 00:21:32,726 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 00:21:32,730 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 00:21:32,754 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 00:21:32,755 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 00:21:32,757 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 00:21:32,757 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 00:21:32,757 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 00:21:32,757 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 00:21:32,757 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 00:21:32,758 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 00:21:32,758 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 00:21:32,758 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 00:21:32,759 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 00:21:32,759 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 00:21:32,760 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 00:21:32,760 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 00:21:32,760 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 00:21:32,760 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 00:21:32,761 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 00:21:32,761 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 00:21:32,761 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 00:21:32,761 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 00:21:32,762 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 00:21:32,762 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 00:21:32,762 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 00:21:32,762 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 00:21:32,762 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 00:21:32,763 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 00:21:32,763 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 00:21:32,763 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 00:21:32,763 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 00:21:33,027 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 00:21:33,039 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 00:21:33,042 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 00:21:33,043 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 00:21:33,044 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 00:21:33,045 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-usb-misc-iowarrior.ko.cil.out.i [2019-10-15 00:21:33,119 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43d33886e/4e2568dddcc54eb8a2d41f15d04d4a11/FLAG96f77c0a1 [2019-10-15 00:21:33,876 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 00:21:33,877 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-usb-misc-iowarrior.ko.cil.out.i [2019-10-15 00:21:33,913 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43d33886e/4e2568dddcc54eb8a2d41f15d04d4a11/FLAG96f77c0a1 [2019-10-15 00:21:33,934 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43d33886e/4e2568dddcc54eb8a2d41f15d04d4a11 [2019-10-15 00:21:33,943 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 00:21:33,944 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 00:21:33,945 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 00:21:33,945 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 00:21:33,949 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 00:21:33,949 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:21:33" (1/1) ... [2019-10-15 00:21:33,953 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78978227 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:21:33, skipping insertion in model container [2019-10-15 00:21:33,953 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:21:33" (1/1) ... [2019-10-15 00:21:33,960 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 00:21:34,071 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 00:21:35,348 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 00:21:35,388 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 00:21:35,618 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 00:21:35,776 INFO L192 MainTranslator]: Completed translation [2019-10-15 00:21:35,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:21:35 WrapperNode [2019-10-15 00:21:35,776 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 00:21:35,777 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 00:21:35,777 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 00:21:35,778 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 00:21:35,791 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:21:35" (1/1) ... [2019-10-15 00:21:35,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:21:35" (1/1) ... [2019-10-15 00:21:35,838 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:21:35" (1/1) ... [2019-10-15 00:21:35,839 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:21:35" (1/1) ... [2019-10-15 00:21:35,956 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:21:35" (1/1) ... [2019-10-15 00:21:35,992 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:21:35" (1/1) ... [2019-10-15 00:21:36,026 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:21:35" (1/1) ... [2019-10-15 00:21:36,060 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 00:21:36,061 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 00:21:36,061 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 00:21:36,062 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 00:21:36,063 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:21:35" (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 00:21:36,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 00:21:36,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 00:21:36,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2019-10-15 00:21:36,153 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2019-10-15 00:21:36,153 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2019-10-15 00:21:36,154 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2019-10-15 00:21:36,155 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2019-10-15 00:21:36,155 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2019-10-15 00:21:36,155 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2019-10-15 00:21:36,156 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2019-10-15 00:21:36,156 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-10-15 00:21:36,157 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2019-10-15 00:21:36,157 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2019-10-15 00:21:36,158 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_name [2019-10-15 00:21:36,158 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2019-10-15 00:21:36,159 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2019-10-15 00:21:36,161 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2019-10-15 00:21:36,162 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2019-10-15 00:21:36,162 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_out [2019-10-15 00:21:36,163 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2019-10-15 00:21:36,163 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-10-15 00:21:36,163 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2019-10-15 00:21:36,163 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2019-10-15 00:21:36,163 INFO L138 BoogieDeclarations]: Found implementation of procedure test_tsk_thread_flag [2019-10-15 00:21:36,164 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2019-10-15 00:21:36,164 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2019-10-15 00:21:36,164 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2019-10-15 00:21:36,164 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2019-10-15 00:21:36,164 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register [2019-10-15 00:21:36,165 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2019-10-15 00:21:36,165 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2019-10-15 00:21:36,166 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-15 00:21:36,166 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-15 00:21:36,166 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2019-10-15 00:21:36,166 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_report [2019-10-15 00:21:36,167 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_report [2019-10-15 00:21:36,168 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_callback [2019-10-15 00:21:36,168 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_write_callback [2019-10-15 00:21:36,168 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_delete [2019-10-15 00:21:36,168 INFO L138 BoogieDeclarations]: Found implementation of procedure read_index [2019-10-15 00:21:36,168 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_read [2019-10-15 00:21:36,169 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_write [2019-10-15 00:21:36,169 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_ioctl [2019-10-15 00:21:36,169 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_open [2019-10-15 00:21:36,169 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_release [2019-10-15 00:21:36,170 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_poll [2019-10-15 00:21:36,170 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_devnode [2019-10-15 00:21:36,170 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_probe [2019-10-15 00:21:36,170 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_disconnect [2019-10-15 00:21:36,170 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_init [2019-10-15 00:21:36,171 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_exit [2019-10-15 00:21:36,171 INFO L138 BoogieDeclarations]: Found implementation of procedure init_module [2019-10-15 00:21:36,171 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup_module [2019-10-15 00:21:36,171 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 00:21:36,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2019-10-15 00:21:36,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2019-10-15 00:21:36,172 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2019-10-15 00:21:36,172 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2019-10-15 00:21:36,172 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2019-10-15 00:21:36,172 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2019-10-15 00:21:36,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-15 00:21:36,172 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-10-15 00:21:36,173 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-15 00:21:36,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2019-10-15 00:21:36,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-10-15 00:21:36,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2019-10-15 00:21:36,174 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2019-10-15 00:21:36,175 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-10-15 00:21:36,175 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2019-10-15 00:21:36,175 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2019-10-15 00:21:36,175 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2019-10-15 00:21:36,175 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-10-15 00:21:36,175 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-10-15 00:21:36,177 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-10-15 00:21:36,177 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2019-10-15 00:21:36,177 INFO L138 BoogieDeclarations]: Found implementation of procedure kasprintf [2019-10-15 00:21:36,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2019-10-15 00:21:36,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-15 00:21:36,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2019-10-15 00:21:36,179 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-10-15 00:21:36,179 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2019-10-15 00:21:36,179 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-15 00:21:36,180 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2019-10-15 00:21:36,181 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-15 00:21:36,181 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2019-10-15 00:21:36,182 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2019-10-15 00:21:36,182 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2019-10-15 00:21:36,184 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister_dev [2019-10-15 00:21:36,184 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_find_interface [2019-10-15 00:21:36,184 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2019-10-15 00:21:36,185 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_dev [2019-10-15 00:21:36,185 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2019-10-15 00:21:36,185 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_string [2019-10-15 00:21:36,185 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2019-10-15 00:21:36,186 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2019-10-15 00:21:36,186 INFO L138 BoogieDeclarations]: Found implementation of procedure autoremove_wake_function [2019-10-15 00:21:36,186 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-15 00:21:36,186 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-15 00:21:36,187 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-15 00:21:36,187 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-15 00:21:36,187 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 00:21:36,187 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2019-10-15 00:21:36,187 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-15 00:21:36,188 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2019-10-15 00:21:36,188 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-10-15 00:21:36,188 INFO L130 BoogieDeclarations]: Found specification of procedure kasprintf [2019-10-15 00:21:36,188 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-10-15 00:21:36,189 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2019-10-15 00:21:36,189 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-15 00:21:36,189 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-15 00:21:36,189 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2019-10-15 00:21:36,190 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2019-10-15 00:21:36,190 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2019-10-15 00:21:36,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 00:21:36,190 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2019-10-15 00:21:36,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 00:21:36,191 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2019-10-15 00:21:36,192 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2019-10-15 00:21:36,192 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2019-10-15 00:21:36,192 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-10-15 00:21:36,194 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2019-10-15 00:21:36,194 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2019-10-15 00:21:36,194 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-10-15 00:21:36,194 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2019-10-15 00:21:36,196 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2019-10-15 00:21:36,196 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-10-15 00:21:36,197 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2019-10-15 00:21:36,197 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2019-10-15 00:21:36,197 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2019-10-15 00:21:36,197 INFO L130 BoogieDeclarations]: Found specification of procedure autoremove_wake_function [2019-10-15 00:21:36,197 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2019-10-15 00:21:36,199 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2019-10-15 00:21:36,199 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-15 00:21:36,199 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-15 00:21:36,199 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_name [2019-10-15 00:21:36,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 00:21:36,201 INFO L130 BoogieDeclarations]: Found specification of procedure init_module [2019-10-15 00:21:36,205 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup_module [2019-10-15 00:21:36,205 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2019-10-15 00:21:36,205 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2019-10-15 00:21:36,206 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2019-10-15 00:21:36,206 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2019-10-15 00:21:36,206 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_out [2019-10-15 00:21:36,207 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-10-15 00:21:36,214 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2019-10-15 00:21:36,215 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2019-10-15 00:21:36,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 00:21:36,215 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-10-15 00:21:36,215 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2019-10-15 00:21:36,215 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-10-15 00:21:36,216 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-10-15 00:21:36,216 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-10-15 00:21:36,217 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2019-10-15 00:21:36,217 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2019-10-15 00:21:36,218 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2019-10-15 00:21:36,218 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2019-10-15 00:21:36,218 INFO L130 BoogieDeclarations]: Found specification of procedure test_tsk_thread_flag [2019-10-15 00:21:36,218 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2019-10-15 00:21:36,218 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2019-10-15 00:21:36,219 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2019-10-15 00:21:36,219 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2019-10-15 00:21:36,219 INFO L130 BoogieDeclarations]: Found specification of procedure usb_find_interface [2019-10-15 00:21:36,219 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2019-10-15 00:21:36,219 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register [2019-10-15 00:21:36,220 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2019-10-15 00:21:36,220 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_dev [2019-10-15 00:21:36,220 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister_dev [2019-10-15 00:21:36,220 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2019-10-15 00:21:36,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 00:21:36,221 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2019-10-15 00:21:36,221 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2019-10-15 00:21:36,221 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2019-10-15 00:21:36,221 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2019-10-15 00:21:36,221 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2019-10-15 00:21:36,222 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2019-10-15 00:21:36,222 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2019-10-15 00:21:36,222 INFO L130 BoogieDeclarations]: Found specification of procedure usb_string [2019-10-15 00:21:36,222 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2019-10-15 00:21:36,222 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-15 00:21:36,223 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-15 00:21:36,223 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-15 00:21:36,223 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2019-10-15 00:21:36,223 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2019-10-15 00:21:36,223 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_report [2019-10-15 00:21:36,223 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_report [2019-10-15 00:21:36,224 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_callback [2019-10-15 00:21:36,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-15 00:21:36,224 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_write_callback [2019-10-15 00:21:36,224 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_delete [2019-10-15 00:21:36,224 INFO L130 BoogieDeclarations]: Found specification of procedure read_index [2019-10-15 00:21:36,225 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_read [2019-10-15 00:21:36,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 00:21:36,225 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_write [2019-10-15 00:21:36,225 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_ioctl [2019-10-15 00:21:36,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-15 00:21:36,226 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_open [2019-10-15 00:21:36,226 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_release [2019-10-15 00:21:36,226 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_poll [2019-10-15 00:21:36,226 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_devnode [2019-10-15 00:21:36,227 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_probe [2019-10-15 00:21:36,227 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_disconnect [2019-10-15 00:21:36,227 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_init [2019-10-15 00:21:36,227 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_exit [2019-10-15 00:21:36,227 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-15 00:21:36,227 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2019-10-15 00:21:36,228 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-15 00:21:36,228 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 00:21:36,228 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 00:21:36,228 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2019-10-15 00:21:36,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2019-10-15 00:21:36,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2019-10-15 00:21:36,229 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-15 00:21:36,229 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-15 00:21:36,229 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-15 00:21:36,230 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 00:21:36,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 00:21:36,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 00:21:36,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-15 00:21:36,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 00:21:36,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-15 00:21:36,231 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-15 00:21:36,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-15 00:21:36,231 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-15 00:21:37,355 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-15 00:21:37,368 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2019-10-15 00:21:37,368 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2019-10-15 00:21:37,413 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-15 00:21:37,645 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume !false; [2019-10-15 00:21:37,646 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume false; [2019-10-15 00:21:37,750 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2019-10-15 00:21:39,377 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-15 00:21:39,470 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##36: assume !false; [2019-10-15 00:21:39,471 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##35: assume false; [2019-10-15 00:21:39,546 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-15 00:21:39,797 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume false; [2019-10-15 00:21:39,797 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##22: assume !false; [2019-10-15 00:21:39,961 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-15 00:21:40,013 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2019-10-15 00:21:40,013 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2019-10-15 00:21:40,241 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 00:21:40,242 INFO L284 CfgBuilder]: Removed 27 assume(true) statements. [2019-10-15 00:21:40,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:21:40 BoogieIcfgContainer [2019-10-15 00:21:40,244 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 00:21:40,245 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 00:21:40,245 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 00:21:40,248 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 00:21:40,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 12:21:33" (1/3) ... [2019-10-15 00:21:40,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6973a89a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:21:40, skipping insertion in model container [2019-10-15 00:21:40,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:21:35" (2/3) ... [2019-10-15 00:21:40,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6973a89a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:21:40, skipping insertion in model container [2019-10-15 00:21:40,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:21:40" (3/3) ... [2019-10-15 00:21:40,252 INFO L109 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-usb-misc-iowarrior.ko.cil.out.i [2019-10-15 00:21:40,262 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 00:21:40,272 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 00:21:40,284 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 00:21:40,320 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 00:21:40,320 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 00:21:40,320 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 00:21:40,321 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 00:21:40,321 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 00:21:40,321 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 00:21:40,321 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 00:21:40,321 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 00:21:40,362 INFO L276 IsEmpty]: Start isEmpty. Operand 820 states. [2019-10-15 00:21:40,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-10-15 00:21:40,369 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:21:40,371 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, 1] [2019-10-15 00:21:40,373 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:21:40,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:21:40,380 INFO L82 PathProgramCache]: Analyzing trace with hash 39899685, now seen corresponding path program 1 times [2019-10-15 00:21:40,393 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:21:40,393 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139822917] [2019-10-15 00:21:40,394 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:40,394 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:40,394 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:21:40,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:21:41,043 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 00:21:41,044 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139822917] [2019-10-15 00:21:41,045 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:21:41,046 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:21:41,046 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119289749] [2019-10-15 00:21:41,052 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:21:41,054 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:21:41,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:21:41,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:21:41,073 INFO L87 Difference]: Start difference. First operand 820 states. Second operand 3 states. [2019-10-15 00:21:41,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:21:41,371 INFO L93 Difference]: Finished difference Result 2255 states and 3176 transitions. [2019-10-15 00:21:41,371 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:21:41,373 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2019-10-15 00:21:41,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:21:41,414 INFO L225 Difference]: With dead ends: 2255 [2019-10-15 00:21:41,415 INFO L226 Difference]: Without dead ends: 1491 [2019-10-15 00:21:41,428 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 00:21:41,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1491 states. [2019-10-15 00:21:41,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1491 to 1487. [2019-10-15 00:21:41,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1487 states. [2019-10-15 00:21:41,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1487 states to 1487 states and 1949 transitions. [2019-10-15 00:21:41,639 INFO L78 Accepts]: Start accepts. Automaton has 1487 states and 1949 transitions. Word has length 29 [2019-10-15 00:21:41,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:21:41,640 INFO L462 AbstractCegarLoop]: Abstraction has 1487 states and 1949 transitions. [2019-10-15 00:21:41,640 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:21:41,641 INFO L276 IsEmpty]: Start isEmpty. Operand 1487 states and 1949 transitions. [2019-10-15 00:21:41,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-15 00:21:41,642 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:21:41,642 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, 1, 1] [2019-10-15 00:21:41,642 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:21:41,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:21:41,643 INFO L82 PathProgramCache]: Analyzing trace with hash 1236422027, now seen corresponding path program 1 times [2019-10-15 00:21:41,643 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:21:41,643 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214175249] [2019-10-15 00:21:41,643 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:41,643 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:41,644 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:21:41,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:21:41,935 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 00:21:41,935 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214175249] [2019-10-15 00:21:41,936 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:21:41,936 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:21:41,936 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804506043] [2019-10-15 00:21:41,938 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:21:41,938 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:21:41,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:21:41,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:21:41,939 INFO L87 Difference]: Start difference. First operand 1487 states and 1949 transitions. Second operand 3 states. [2019-10-15 00:21:42,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:21:42,053 INFO L93 Difference]: Finished difference Result 4408 states and 5802 transitions. [2019-10-15 00:21:42,053 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:21:42,054 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2019-10-15 00:21:42,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:21:42,074 INFO L225 Difference]: With dead ends: 4408 [2019-10-15 00:21:42,074 INFO L226 Difference]: Without dead ends: 2936 [2019-10-15 00:21:42,081 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 00:21:42,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2936 states. [2019-10-15 00:21:42,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2936 to 2929. [2019-10-15 00:21:42,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2929 states. [2019-10-15 00:21:42,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2929 states to 2929 states and 3851 transitions. [2019-10-15 00:21:42,221 INFO L78 Accepts]: Start accepts. Automaton has 2929 states and 3851 transitions. Word has length 30 [2019-10-15 00:21:42,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:21:42,222 INFO L462 AbstractCegarLoop]: Abstraction has 2929 states and 3851 transitions. [2019-10-15 00:21:42,222 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:21:42,222 INFO L276 IsEmpty]: Start isEmpty. Operand 2929 states and 3851 transitions. [2019-10-15 00:21:42,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-10-15 00:21:42,228 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:21:42,228 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:21:42,229 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:21:42,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:21:42,229 INFO L82 PathProgramCache]: Analyzing trace with hash -442223347, now seen corresponding path program 1 times [2019-10-15 00:21:42,229 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:21:42,230 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468347349] [2019-10-15 00:21:42,230 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:42,230 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:42,230 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:21:42,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:21:42,401 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 00:21:42,402 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468347349] [2019-10-15 00:21:42,402 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:21:42,402 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:21:42,403 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312562108] [2019-10-15 00:21:42,403 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:21:42,403 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:21:42,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:21:42,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:21:42,404 INFO L87 Difference]: Start difference. First operand 2929 states and 3851 transitions. Second operand 3 states. [2019-10-15 00:21:42,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:21:42,586 INFO L93 Difference]: Finished difference Result 5967 states and 7911 transitions. [2019-10-15 00:21:42,587 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:21:42,587 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2019-10-15 00:21:42,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:21:42,617 INFO L225 Difference]: With dead ends: 5967 [2019-10-15 00:21:42,617 INFO L226 Difference]: Without dead ends: 3063 [2019-10-15 00:21:42,628 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 00:21:42,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3063 states. [2019-10-15 00:21:42,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3063 to 3057. [2019-10-15 00:21:42,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3057 states. [2019-10-15 00:21:42,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3057 states to 3057 states and 4056 transitions. [2019-10-15 00:21:42,758 INFO L78 Accepts]: Start accepts. Automaton has 3057 states and 4056 transitions. Word has length 70 [2019-10-15 00:21:42,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:21:42,759 INFO L462 AbstractCegarLoop]: Abstraction has 3057 states and 4056 transitions. [2019-10-15 00:21:42,759 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:21:42,759 INFO L276 IsEmpty]: Start isEmpty. Operand 3057 states and 4056 transitions. [2019-10-15 00:21:42,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-10-15 00:21:42,768 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:21:42,768 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] [2019-10-15 00:21:42,768 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:21:42,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:21:42,769 INFO L82 PathProgramCache]: Analyzing trace with hash 40263783, now seen corresponding path program 1 times [2019-10-15 00:21:42,769 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:21:42,769 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829224977] [2019-10-15 00:21:42,770 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:42,770 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:42,771 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:21:42,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:21:43,113 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 00:21:43,114 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829224977] [2019-10-15 00:21:43,114 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:21:43,114 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:21:43,115 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895543416] [2019-10-15 00:21:43,115 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:21:43,115 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:21:43,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:21:43,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:21:43,116 INFO L87 Difference]: Start difference. First operand 3057 states and 4056 transitions. Second operand 3 states. [2019-10-15 00:21:43,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:21:43,249 INFO L93 Difference]: Finished difference Result 6363 states and 8543 transitions. [2019-10-15 00:21:43,249 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:21:43,250 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 108 [2019-10-15 00:21:43,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:21:43,273 INFO L225 Difference]: With dead ends: 6363 [2019-10-15 00:21:43,273 INFO L226 Difference]: Without dead ends: 3329 [2019-10-15 00:21:43,286 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 00:21:43,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3329 states. [2019-10-15 00:21:43,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3329 to 3323. [2019-10-15 00:21:43,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3323 states. [2019-10-15 00:21:43,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3323 states to 3323 states and 4480 transitions. [2019-10-15 00:21:43,416 INFO L78 Accepts]: Start accepts. Automaton has 3323 states and 4480 transitions. Word has length 108 [2019-10-15 00:21:43,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:21:43,417 INFO L462 AbstractCegarLoop]: Abstraction has 3323 states and 4480 transitions. [2019-10-15 00:21:43,417 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:21:43,417 INFO L276 IsEmpty]: Start isEmpty. Operand 3323 states and 4480 transitions. [2019-10-15 00:21:43,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2019-10-15 00:21:43,421 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:21:43,421 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 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] [2019-10-15 00:21:43,422 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:21:43,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:21:43,422 INFO L82 PathProgramCache]: Analyzing trace with hash -1726277143, now seen corresponding path program 1 times [2019-10-15 00:21:43,422 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:21:43,423 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229008005] [2019-10-15 00:21:43,423 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:43,423 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:43,423 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:21:43,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:21:43,637 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 00:21:43,638 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229008005] [2019-10-15 00:21:43,638 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:21:43,638 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 00:21:43,639 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679419205] [2019-10-15 00:21:43,640 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 00:21:43,640 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:21:43,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 00:21:43,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 00:21:43,641 INFO L87 Difference]: Start difference. First operand 3323 states and 4480 transitions. Second operand 6 states. [2019-10-15 00:21:51,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:21:51,016 INFO L93 Difference]: Finished difference Result 9905 states and 13744 transitions. [2019-10-15 00:21:51,016 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 00:21:51,017 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 114 [2019-10-15 00:21:51,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:21:51,077 INFO L225 Difference]: With dead ends: 9905 [2019-10-15 00:21:51,077 INFO L226 Difference]: Without dead ends: 6607 [2019-10-15 00:21:51,101 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2019-10-15 00:21:51,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6607 states. [2019-10-15 00:21:51,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6607 to 5855. [2019-10-15 00:21:51,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5855 states. [2019-10-15 00:21:51,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5855 states to 5855 states and 8029 transitions. [2019-10-15 00:21:51,517 INFO L78 Accepts]: Start accepts. Automaton has 5855 states and 8029 transitions. Word has length 114 [2019-10-15 00:21:51,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:21:51,517 INFO L462 AbstractCegarLoop]: Abstraction has 5855 states and 8029 transitions. [2019-10-15 00:21:51,518 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 00:21:51,518 INFO L276 IsEmpty]: Start isEmpty. Operand 5855 states and 8029 transitions. [2019-10-15 00:21:51,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2019-10-15 00:21:51,521 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:21:51,521 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 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] [2019-10-15 00:21:51,522 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:21:51,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:21:51,522 INFO L82 PathProgramCache]: Analyzing trace with hash -1486037397, now seen corresponding path program 1 times [2019-10-15 00:21:51,522 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:21:51,523 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949018667] [2019-10-15 00:21:51,523 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:51,523 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:51,523 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:21:51,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:21:51,701 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 00:21:51,701 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949018667] [2019-10-15 00:21:51,701 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:21:51,701 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 00:21:51,702 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206431749] [2019-10-15 00:21:51,702 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 00:21:51,703 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:21:51,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 00:21:51,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 00:21:51,703 INFO L87 Difference]: Start difference. First operand 5855 states and 8029 transitions. Second operand 5 states. [2019-10-15 00:21:53,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:21:53,642 INFO L93 Difference]: Finished difference Result 11781 states and 16149 transitions. [2019-10-15 00:21:53,643 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 00:21:53,643 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 114 [2019-10-15 00:21:53,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:21:53,694 INFO L225 Difference]: With dead ends: 11781 [2019-10-15 00:21:53,694 INFO L226 Difference]: Without dead ends: 5951 [2019-10-15 00:21:53,726 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-15 00:21:53,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5951 states. [2019-10-15 00:21:54,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5951 to 5855. [2019-10-15 00:21:54,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5855 states. [2019-10-15 00:21:54,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5855 states to 5855 states and 8025 transitions. [2019-10-15 00:21:54,195 INFO L78 Accepts]: Start accepts. Automaton has 5855 states and 8025 transitions. Word has length 114 [2019-10-15 00:21:54,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:21:54,196 INFO L462 AbstractCegarLoop]: Abstraction has 5855 states and 8025 transitions. [2019-10-15 00:21:54,196 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 00:21:54,196 INFO L276 IsEmpty]: Start isEmpty. Operand 5855 states and 8025 transitions. [2019-10-15 00:21:54,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2019-10-15 00:21:54,199 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:21:54,199 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 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] [2019-10-15 00:21:54,200 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:21:54,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:21:54,200 INFO L82 PathProgramCache]: Analyzing trace with hash -784437523, now seen corresponding path program 1 times [2019-10-15 00:21:54,200 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:21:54,200 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569420984] [2019-10-15 00:21:54,201 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:54,201 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:54,201 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:21:54,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:21:54,379 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 00:21:54,380 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569420984] [2019-10-15 00:21:54,380 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:21:54,380 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 00:21:54,380 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948222019] [2019-10-15 00:21:54,381 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 00:21:54,381 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:21:54,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 00:21:54,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 00:21:54,382 INFO L87 Difference]: Start difference. First operand 5855 states and 8025 transitions. Second operand 5 states. [2019-10-15 00:21:55,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:21:55,187 INFO L93 Difference]: Finished difference Result 11805 states and 16181 transitions. [2019-10-15 00:21:55,187 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 00:21:55,187 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 114 [2019-10-15 00:21:55,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:21:55,233 INFO L225 Difference]: With dead ends: 11805 [2019-10-15 00:21:55,233 INFO L226 Difference]: Without dead ends: 5943 [2019-10-15 00:21:55,261 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 00:21:55,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5943 states. [2019-10-15 00:21:55,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5943 to 5875. [2019-10-15 00:21:55,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5875 states. [2019-10-15 00:21:55,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5875 states to 5875 states and 8047 transitions. [2019-10-15 00:21:55,579 INFO L78 Accepts]: Start accepts. Automaton has 5875 states and 8047 transitions. Word has length 114 [2019-10-15 00:21:55,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:21:55,579 INFO L462 AbstractCegarLoop]: Abstraction has 5875 states and 8047 transitions. [2019-10-15 00:21:55,579 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 00:21:55,580 INFO L276 IsEmpty]: Start isEmpty. Operand 5875 states and 8047 transitions. [2019-10-15 00:21:55,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-10-15 00:21:55,590 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:21:55,590 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:21:55,590 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:21:55,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:21:55,591 INFO L82 PathProgramCache]: Analyzing trace with hash 1778223152, now seen corresponding path program 1 times [2019-10-15 00:21:55,591 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:21:55,591 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346869201] [2019-10-15 00:21:55,591 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:55,591 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:55,591 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:21:59,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:21:59,308 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 00:21:59,309 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346869201] [2019-10-15 00:21:59,309 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:21:59,309 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-15 00:21:59,309 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436828808] [2019-10-15 00:21:59,310 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-15 00:21:59,310 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:21:59,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-15 00:21:59,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-15 00:21:59,312 INFO L87 Difference]: Start difference. First operand 5875 states and 8047 transitions. Second operand 11 states. [2019-10-15 00:22:03,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:22:03,343 INFO L93 Difference]: Finished difference Result 11793 states and 16183 transitions. [2019-10-15 00:22:03,345 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-15 00:22:03,345 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 150 [2019-10-15 00:22:03,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:22:03,394 INFO L225 Difference]: With dead ends: 11793 [2019-10-15 00:22:03,395 INFO L226 Difference]: Without dead ends: 5895 [2019-10-15 00:22:03,415 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2019-10-15 00:22:03,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5895 states. [2019-10-15 00:22:03,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5895 to 5887. [2019-10-15 00:22:03,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5887 states. [2019-10-15 00:22:03,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5887 states to 5887 states and 8061 transitions. [2019-10-15 00:22:03,709 INFO L78 Accepts]: Start accepts. Automaton has 5887 states and 8061 transitions. Word has length 150 [2019-10-15 00:22:03,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:22:03,710 INFO L462 AbstractCegarLoop]: Abstraction has 5887 states and 8061 transitions. [2019-10-15 00:22:03,710 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-15 00:22:03,710 INFO L276 IsEmpty]: Start isEmpty. Operand 5887 states and 8061 transitions. [2019-10-15 00:22:03,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-10-15 00:22:03,715 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:22:03,715 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:22:03,716 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:22:03,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:22:03,716 INFO L82 PathProgramCache]: Analyzing trace with hash 1711216399, now seen corresponding path program 1 times [2019-10-15 00:22:03,716 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:22:03,716 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757892549] [2019-10-15 00:22:03,717 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:22:03,717 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:22:03,717 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:22:03,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:22:03,959 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 00:22:03,960 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757892549] [2019-10-15 00:22:03,960 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:22:03,960 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 00:22:03,961 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034793768] [2019-10-15 00:22:03,961 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 00:22:03,962 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:22:03,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 00:22:03,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-15 00:22:03,963 INFO L87 Difference]: Start difference. First operand 5887 states and 8061 transitions. Second operand 6 states.