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-f4eb214f-m [2019-10-13 20:22:33,452 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 20:22:33,457 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 20:22:33,471 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 20:22:33,472 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 20:22:33,474 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 20:22:33,476 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 20:22:33,481 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 20:22:33,483 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 20:22:33,489 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 20:22:33,490 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 20:22:33,491 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 20:22:33,491 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 20:22:33,493 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 20:22:33,496 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 20:22:33,497 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 20:22:33,499 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 20:22:33,501 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 20:22:33,504 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 20:22:33,508 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 20:22:33,511 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 20:22:33,512 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 20:22:33,514 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 20:22:33,515 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 20:22:33,518 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 20:22:33,518 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 20:22:33,518 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 20:22:33,520 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 20:22:33,521 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 20:22:33,522 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 20:22:33,523 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 20:22:33,523 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 20:22:33,524 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 20:22:33,525 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 20:22:33,527 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 20:22:33,527 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 20:22:33,527 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 20:22:33,528 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 20:22:33,528 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 20:22:33,530 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 20:22:33,531 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 20:22:33,532 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 [2019-10-13 20:22:33,550 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 20:22:33,550 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 20:22:33,552 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 20:22:33,552 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 20:22:33,553 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 20:22:33,553 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 20:22:33,553 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 20:22:33,553 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 20:22:33,553 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 20:22:33,554 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 20:22:33,554 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 20:22:33,555 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 20:22:33,555 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 20:22:33,555 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 20:22:33,556 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 20:22:33,556 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 20:22:33,556 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 20:22:33,556 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 20:22:33,556 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 20:22:33,557 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 20:22:33,557 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 20:22:33,557 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 20:22:33,557 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 20:22:33,558 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 20:22:33,558 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 20:22:33,558 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 20:22:33,558 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 20:22:33,558 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 20:22:33,558 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 [2019-10-13 20:22:33,830 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 20:22:33,848 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 20:22:33,852 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 20:22:33,853 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 20:22:33,853 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 20:22:33,854 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-usb-misc-iowarrior.ko.cil.out.i [2019-10-13 20:22:33,931 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f8fa426e/fa8c33edc20549dc8b22173976adbc27/FLAGfe0a132f1 [2019-10-13 20:22:34,693 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 20:22:34,694 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-usb-misc-iowarrior.ko.cil.out.i [2019-10-13 20:22:34,731 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f8fa426e/fa8c33edc20549dc8b22173976adbc27/FLAGfe0a132f1 [2019-10-13 20:22:34,792 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f8fa426e/fa8c33edc20549dc8b22173976adbc27 [2019-10-13 20:22:34,802 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 20:22:34,803 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 20:22:34,806 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 20:22:34,806 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 20:22:34,810 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 20:22:34,811 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:22:34" (1/1) ... [2019-10-13 20:22:34,814 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c26d124 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:22:34, skipping insertion in model container [2019-10-13 20:22:34,814 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:22:34" (1/1) ... [2019-10-13 20:22:34,821 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 20:22:34,930 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 20:22:36,268 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 20:22:36,310 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 20:22:36,648 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 20:22:36,880 INFO L192 MainTranslator]: Completed translation [2019-10-13 20:22:36,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:22:36 WrapperNode [2019-10-13 20:22:36,882 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 20:22:36,883 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 20:22:36,883 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 20:22:36,883 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 20:22:36,901 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:22:36" (1/1) ... [2019-10-13 20:22:36,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:22:36" (1/1) ... [2019-10-13 20:22:36,987 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:22:36" (1/1) ... [2019-10-13 20:22:36,990 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:22:36" (1/1) ... [2019-10-13 20:22:37,094 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:22:36" (1/1) ... [2019-10-13 20:22:37,120 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:22:36" (1/1) ... [2019-10-13 20:22:37,148 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:22:36" (1/1) ... [2019-10-13 20:22:37,174 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 20:22:37,174 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 20:22:37,175 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 20:22:37,175 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 20:22:37,176 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:22:36" (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 [2019-10-13 20:22:37,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 20:22:37,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 20:22:37,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2019-10-13 20:22:37,241 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2019-10-13 20:22:37,241 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2019-10-13 20:22:37,241 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2019-10-13 20:22:37,242 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2019-10-13 20:22:37,242 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2019-10-13 20:22:37,242 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2019-10-13 20:22:37,242 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2019-10-13 20:22:37,242 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-10-13 20:22:37,243 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2019-10-13 20:22:37,243 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2019-10-13 20:22:37,243 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_name [2019-10-13 20:22:37,243 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2019-10-13 20:22:37,243 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2019-10-13 20:22:37,244 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2019-10-13 20:22:37,244 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2019-10-13 20:22:37,244 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_out [2019-10-13 20:22:37,244 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2019-10-13 20:22:37,244 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-10-13 20:22:37,245 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2019-10-13 20:22:37,245 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2019-10-13 20:22:37,245 INFO L138 BoogieDeclarations]: Found implementation of procedure test_tsk_thread_flag [2019-10-13 20:22:37,245 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2019-10-13 20:22:37,245 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2019-10-13 20:22:37,246 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2019-10-13 20:22:37,246 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2019-10-13 20:22:37,246 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register [2019-10-13 20:22:37,246 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2019-10-13 20:22:37,246 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2019-10-13 20:22:37,246 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-13 20:22:37,247 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-13 20:22:37,247 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2019-10-13 20:22:37,247 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_report [2019-10-13 20:22:37,247 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_report [2019-10-13 20:22:37,247 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_callback [2019-10-13 20:22:37,247 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_write_callback [2019-10-13 20:22:37,247 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_delete [2019-10-13 20:22:37,248 INFO L138 BoogieDeclarations]: Found implementation of procedure read_index [2019-10-13 20:22:37,248 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_read [2019-10-13 20:22:37,248 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_write [2019-10-13 20:22:37,248 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_ioctl [2019-10-13 20:22:37,248 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_open [2019-10-13 20:22:37,248 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_release [2019-10-13 20:22:37,249 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_poll [2019-10-13 20:22:37,249 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_devnode [2019-10-13 20:22:37,249 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_probe [2019-10-13 20:22:37,249 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_disconnect [2019-10-13 20:22:37,249 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_init [2019-10-13 20:22:37,249 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_exit [2019-10-13 20:22:37,250 INFO L138 BoogieDeclarations]: Found implementation of procedure init_module [2019-10-13 20:22:37,250 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup_module [2019-10-13 20:22:37,250 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 20:22:37,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2019-10-13 20:22:37,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2019-10-13 20:22:37,250 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2019-10-13 20:22:37,251 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2019-10-13 20:22:37,251 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2019-10-13 20:22:37,251 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2019-10-13 20:22:37,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-13 20:22:37,251 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-10-13 20:22:37,252 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-13 20:22:37,252 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2019-10-13 20:22:37,252 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-10-13 20:22:37,252 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2019-10-13 20:22:37,252 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2019-10-13 20:22:37,252 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-10-13 20:22:37,253 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2019-10-13 20:22:37,253 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2019-10-13 20:22:37,253 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2019-10-13 20:22:37,253 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-10-13 20:22:37,253 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-10-13 20:22:37,253 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-10-13 20:22:37,253 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2019-10-13 20:22:37,254 INFO L138 BoogieDeclarations]: Found implementation of procedure kasprintf [2019-10-13 20:22:37,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2019-10-13 20:22:37,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-13 20:22:37,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2019-10-13 20:22:37,254 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-10-13 20:22:37,254 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2019-10-13 20:22:37,255 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-13 20:22:37,255 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2019-10-13 20:22:37,255 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-13 20:22:37,255 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2019-10-13 20:22:37,255 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2019-10-13 20:22:37,255 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2019-10-13 20:22:37,256 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister_dev [2019-10-13 20:22:37,256 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_find_interface [2019-10-13 20:22:37,256 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2019-10-13 20:22:37,256 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_dev [2019-10-13 20:22:37,256 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2019-10-13 20:22:37,256 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_string [2019-10-13 20:22:37,257 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2019-10-13 20:22:37,257 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2019-10-13 20:22:37,257 INFO L138 BoogieDeclarations]: Found implementation of procedure autoremove_wake_function [2019-10-13 20:22:37,257 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-13 20:22:37,257 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-13 20:22:37,257 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-13 20:22:37,258 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-13 20:22:37,258 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 20:22:37,258 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2019-10-13 20:22:37,258 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-13 20:22:37,258 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2019-10-13 20:22:37,258 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-10-13 20:22:37,259 INFO L130 BoogieDeclarations]: Found specification of procedure kasprintf [2019-10-13 20:22:37,259 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-10-13 20:22:37,259 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2019-10-13 20:22:37,259 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-13 20:22:37,259 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-13 20:22:37,259 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2019-10-13 20:22:37,260 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2019-10-13 20:22:37,260 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2019-10-13 20:22:37,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 20:22:37,260 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2019-10-13 20:22:37,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 20:22:37,260 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2019-10-13 20:22:37,260 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2019-10-13 20:22:37,261 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2019-10-13 20:22:37,261 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-10-13 20:22:37,261 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2019-10-13 20:22:37,261 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2019-10-13 20:22:37,261 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-10-13 20:22:37,261 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2019-10-13 20:22:37,262 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2019-10-13 20:22:37,262 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-10-13 20:22:37,262 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2019-10-13 20:22:37,262 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2019-10-13 20:22:37,262 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2019-10-13 20:22:37,262 INFO L130 BoogieDeclarations]: Found specification of procedure autoremove_wake_function [2019-10-13 20:22:37,262 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2019-10-13 20:22:37,263 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2019-10-13 20:22:37,263 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-13 20:22:37,263 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-13 20:22:37,263 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_name [2019-10-13 20:22:37,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 20:22:37,263 INFO L130 BoogieDeclarations]: Found specification of procedure init_module [2019-10-13 20:22:37,264 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup_module [2019-10-13 20:22:37,264 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2019-10-13 20:22:37,264 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2019-10-13 20:22:37,264 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2019-10-13 20:22:37,264 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2019-10-13 20:22:37,264 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_out [2019-10-13 20:22:37,264 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-10-13 20:22:37,265 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2019-10-13 20:22:37,265 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2019-10-13 20:22:37,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 20:22:37,265 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-10-13 20:22:37,265 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2019-10-13 20:22:37,265 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-10-13 20:22:37,265 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-10-13 20:22:37,266 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-10-13 20:22:37,266 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2019-10-13 20:22:37,266 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2019-10-13 20:22:37,266 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2019-10-13 20:22:37,266 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2019-10-13 20:22:37,267 INFO L130 BoogieDeclarations]: Found specification of procedure test_tsk_thread_flag [2019-10-13 20:22:37,267 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2019-10-13 20:22:37,267 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2019-10-13 20:22:37,267 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2019-10-13 20:22:37,267 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2019-10-13 20:22:37,267 INFO L130 BoogieDeclarations]: Found specification of procedure usb_find_interface [2019-10-13 20:22:37,267 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2019-10-13 20:22:37,268 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register [2019-10-13 20:22:37,268 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2019-10-13 20:22:37,268 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_dev [2019-10-13 20:22:37,268 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister_dev [2019-10-13 20:22:37,268 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2019-10-13 20:22:37,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 20:22:37,268 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2019-10-13 20:22:37,269 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2019-10-13 20:22:37,269 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2019-10-13 20:22:37,269 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2019-10-13 20:22:37,269 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2019-10-13 20:22:37,269 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2019-10-13 20:22:37,269 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2019-10-13 20:22:37,269 INFO L130 BoogieDeclarations]: Found specification of procedure usb_string [2019-10-13 20:22:37,270 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2019-10-13 20:22:37,270 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-13 20:22:37,270 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-13 20:22:37,270 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-13 20:22:37,270 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2019-10-13 20:22:37,270 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2019-10-13 20:22:37,270 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_report [2019-10-13 20:22:37,271 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_report [2019-10-13 20:22:37,271 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_callback [2019-10-13 20:22:37,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-13 20:22:37,271 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_write_callback [2019-10-13 20:22:37,271 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_delete [2019-10-13 20:22:37,271 INFO L130 BoogieDeclarations]: Found specification of procedure read_index [2019-10-13 20:22:37,271 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_read [2019-10-13 20:22:37,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 20:22:37,272 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_write [2019-10-13 20:22:37,272 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_ioctl [2019-10-13 20:22:37,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-13 20:22:37,272 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_open [2019-10-13 20:22:37,272 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_release [2019-10-13 20:22:37,273 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_poll [2019-10-13 20:22:37,273 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_devnode [2019-10-13 20:22:37,273 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_probe [2019-10-13 20:22:37,273 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_disconnect [2019-10-13 20:22:37,273 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_init [2019-10-13 20:22:37,273 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_exit [2019-10-13 20:22:37,273 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-13 20:22:37,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2019-10-13 20:22:37,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-13 20:22:37,274 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 20:22:37,274 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 20:22:37,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2019-10-13 20:22:37,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2019-10-13 20:22:37,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2019-10-13 20:22:37,275 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-13 20:22:37,275 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-13 20:22:37,275 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-13 20:22:37,275 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 20:22:37,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 20:22:37,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 20:22:37,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 20:22:37,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 20:22:37,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-13 20:22:37,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-13 20:22:37,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-13 20:22:37,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-13 20:22:38,247 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-13 20:22:38,260 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2019-10-13 20:22:38,260 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2019-10-13 20:22:38,309 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-13 20:22:38,575 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume !false; [2019-10-13 20:22:38,576 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume false; [2019-10-13 20:22:38,685 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2019-10-13 20:22:40,438 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-13 20:22:40,538 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##36: assume !false; [2019-10-13 20:22:40,538 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##35: assume false; [2019-10-13 20:22:40,662 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-13 20:22:40,941 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume false; [2019-10-13 20:22:40,941 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##22: assume !false; [2019-10-13 20:22:41,135 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-13 20:22:41,214 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2019-10-13 20:22:41,215 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2019-10-13 20:22:41,515 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 20:22:41,516 INFO L284 CfgBuilder]: Removed 27 assume(true) statements. [2019-10-13 20:22:41,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:22:41 BoogieIcfgContainer [2019-10-13 20:22:41,518 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 20:22:41,520 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 20:22:41,520 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 20:22:41,524 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 20:22:41,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 08:22:34" (1/3) ... [2019-10-13 20:22:41,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ccfa0eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:22:41, skipping insertion in model container [2019-10-13 20:22:41,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:22:36" (2/3) ... [2019-10-13 20:22:41,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ccfa0eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:22:41, skipping insertion in model container [2019-10-13 20:22:41,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:22:41" (3/3) ... [2019-10-13 20:22:41,528 INFO L109 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-usb-misc-iowarrior.ko.cil.out.i [2019-10-13 20:22:41,543 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 20:22:41,555 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 20:22:41,571 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 20:22:41,610 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 20:22:41,610 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 20:22:41,610 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 20:22:41,611 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 20:22:41,611 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 20:22:41,611 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 20:22:41,611 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 20:22:41,611 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 20:22:41,654 INFO L276 IsEmpty]: Start isEmpty. Operand 820 states. [2019-10-13 20:22:41,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-10-13 20:22:41,663 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:22:41,664 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] [2019-10-13 20:22:41,667 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:22:41,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:22:41,676 INFO L82 PathProgramCache]: Analyzing trace with hash 39899685, now seen corresponding path program 1 times [2019-10-13 20:22:41,690 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:22:41,690 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85652075] [2019-10-13 20:22:41,691 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:22:41,691 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:22:41,691 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:22:42,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:22:42,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 20:22:42,413 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85652075] [2019-10-13 20:22:42,414 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:22:42,414 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:22:42,415 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834932873] [2019-10-13 20:22:42,419 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:22:42,421 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:22:42,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:22:42,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:22:42,439 INFO L87 Difference]: Start difference. First operand 820 states. Second operand 3 states. [2019-10-13 20:22:42,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:22:42,700 INFO L93 Difference]: Finished difference Result 2255 states and 3176 transitions. [2019-10-13 20:22:42,701 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:22:42,702 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2019-10-13 20:22:42,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:22:42,745 INFO L225 Difference]: With dead ends: 2255 [2019-10-13 20:22:42,746 INFO L226 Difference]: Without dead ends: 1491 [2019-10-13 20:22:42,760 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 [2019-10-13 20:22:42,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1491 states. [2019-10-13 20:22:42,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1491 to 1487. [2019-10-13 20:22:42,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1487 states. [2019-10-13 20:22:43,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1487 states to 1487 states and 1949 transitions. [2019-10-13 20:22:43,007 INFO L78 Accepts]: Start accepts. Automaton has 1487 states and 1949 transitions. Word has length 29 [2019-10-13 20:22:43,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:22:43,007 INFO L462 AbstractCegarLoop]: Abstraction has 1487 states and 1949 transitions. [2019-10-13 20:22:43,008 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:22:43,008 INFO L276 IsEmpty]: Start isEmpty. Operand 1487 states and 1949 transitions. [2019-10-13 20:22:43,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-13 20:22:43,009 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:22:43,009 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] [2019-10-13 20:22:43,009 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:22:43,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:22:43,010 INFO L82 PathProgramCache]: Analyzing trace with hash 1236422027, now seen corresponding path program 1 times [2019-10-13 20:22:43,010 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:22:43,010 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950691392] [2019-10-13 20:22:43,010 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:22:43,010 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:22:43,011 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:22:43,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:22:43,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 20:22:43,227 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950691392] [2019-10-13 20:22:43,227 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:22:43,228 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:22:43,228 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021857720] [2019-10-13 20:22:43,230 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:22:43,231 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:22:43,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:22:43,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:22:43,232 INFO L87 Difference]: Start difference. First operand 1487 states and 1949 transitions. Second operand 3 states. [2019-10-13 20:22:43,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:22:43,438 INFO L93 Difference]: Finished difference Result 4408 states and 5802 transitions. [2019-10-13 20:22:43,439 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:22:43,439 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2019-10-13 20:22:43,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:22:43,463 INFO L225 Difference]: With dead ends: 4408 [2019-10-13 20:22:43,463 INFO L226 Difference]: Without dead ends: 2936 [2019-10-13 20:22:43,470 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 [2019-10-13 20:22:43,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2936 states. [2019-10-13 20:22:43,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2936 to 2929. [2019-10-13 20:22:43,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2929 states. [2019-10-13 20:22:43,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2929 states to 2929 states and 3851 transitions. [2019-10-13 20:22:43,642 INFO L78 Accepts]: Start accepts. Automaton has 2929 states and 3851 transitions. Word has length 30 [2019-10-13 20:22:43,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:22:43,642 INFO L462 AbstractCegarLoop]: Abstraction has 2929 states and 3851 transitions. [2019-10-13 20:22:43,643 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:22:43,643 INFO L276 IsEmpty]: Start isEmpty. Operand 2929 states and 3851 transitions. [2019-10-13 20:22:43,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-10-13 20:22:43,657 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:22:43,657 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] [2019-10-13 20:22:43,657 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:22:43,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:22:43,658 INFO L82 PathProgramCache]: Analyzing trace with hash -442223347, now seen corresponding path program 1 times [2019-10-13 20:22:43,658 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:22:43,658 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178379693] [2019-10-13 20:22:43,659 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:22:43,659 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:22:43,659 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:22:43,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:22:43,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 20:22:43,854 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178379693] [2019-10-13 20:22:43,854 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:22:43,855 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:22:43,855 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773737893] [2019-10-13 20:22:43,855 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:22:43,856 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:22:43,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:22:43,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:22:43,856 INFO L87 Difference]: Start difference. First operand 2929 states and 3851 transitions. Second operand 3 states. [2019-10-13 20:22:44,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:22:44,008 INFO L93 Difference]: Finished difference Result 5967 states and 7911 transitions. [2019-10-13 20:22:44,008 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:22:44,008 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2019-10-13 20:22:44,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:22:44,028 INFO L225 Difference]: With dead ends: 5967 [2019-10-13 20:22:44,028 INFO L226 Difference]: Without dead ends: 3063 [2019-10-13 20:22:44,039 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 [2019-10-13 20:22:44,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3063 states. [2019-10-13 20:22:44,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3063 to 3057. [2019-10-13 20:22:44,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3057 states. [2019-10-13 20:22:44,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3057 states to 3057 states and 4056 transitions. [2019-10-13 20:22:44,165 INFO L78 Accepts]: Start accepts. Automaton has 3057 states and 4056 transitions. Word has length 70 [2019-10-13 20:22:44,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:22:44,165 INFO L462 AbstractCegarLoop]: Abstraction has 3057 states and 4056 transitions. [2019-10-13 20:22:44,165 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:22:44,165 INFO L276 IsEmpty]: Start isEmpty. Operand 3057 states and 4056 transitions. [2019-10-13 20:22:44,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-10-13 20:22:44,168 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:22:44,169 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] [2019-10-13 20:22:44,169 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:22:44,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:22:44,170 INFO L82 PathProgramCache]: Analyzing trace with hash 40263783, now seen corresponding path program 1 times [2019-10-13 20:22:44,170 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:22:44,170 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650695718] [2019-10-13 20:22:44,170 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:22:44,170 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:22:44,170 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:22:44,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:22:44,468 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-13 20:22:44,469 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650695718] [2019-10-13 20:22:44,469 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:22:44,469 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:22:44,469 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678539477] [2019-10-13 20:22:44,470 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:22:44,470 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:22:44,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:22:44,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:22:44,471 INFO L87 Difference]: Start difference. First operand 3057 states and 4056 transitions. Second operand 3 states. [2019-10-13 20:22:44,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:22:44,639 INFO L93 Difference]: Finished difference Result 6363 states and 8543 transitions. [2019-10-13 20:22:44,639 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:22:44,639 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 108 [2019-10-13 20:22:44,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:22:44,674 INFO L225 Difference]: With dead ends: 6363 [2019-10-13 20:22:44,674 INFO L226 Difference]: Without dead ends: 3329 [2019-10-13 20:22:44,688 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 [2019-10-13 20:22:44,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3329 states. [2019-10-13 20:22:44,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3329 to 3323. [2019-10-13 20:22:44,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3323 states. [2019-10-13 20:22:44,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3323 states to 3323 states and 4480 transitions. [2019-10-13 20:22:44,840 INFO L78 Accepts]: Start accepts. Automaton has 3323 states and 4480 transitions. Word has length 108 [2019-10-13 20:22:44,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:22:44,841 INFO L462 AbstractCegarLoop]: Abstraction has 3323 states and 4480 transitions. [2019-10-13 20:22:44,841 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:22:44,841 INFO L276 IsEmpty]: Start isEmpty. Operand 3323 states and 4480 transitions. [2019-10-13 20:22:44,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2019-10-13 20:22:44,847 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:22:44,848 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] [2019-10-13 20:22:44,848 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:22:44,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:22:44,849 INFO L82 PathProgramCache]: Analyzing trace with hash -1726277143, now seen corresponding path program 1 times [2019-10-13 20:22:44,849 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:22:44,849 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464922127] [2019-10-13 20:22:44,849 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:22:44,849 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:22:44,849 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:22:44,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:22:45,115 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-13 20:22:45,116 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464922127] [2019-10-13 20:22:45,116 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:22:45,116 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 20:22:45,117 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188733208] [2019-10-13 20:22:45,118 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 20:22:45,118 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:22:45,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 20:22:45,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 20:22:45,119 INFO L87 Difference]: Start difference. First operand 3323 states and 4480 transitions. Second operand 6 states. [2019-10-13 20:22:52,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:22:52,720 INFO L93 Difference]: Finished difference Result 9905 states and 13744 transitions. [2019-10-13 20:22:52,721 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 20:22:52,721 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 114 [2019-10-13 20:22:52,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:22:52,767 INFO L225 Difference]: With dead ends: 9905 [2019-10-13 20:22:52,767 INFO L226 Difference]: Without dead ends: 6607 [2019-10-13 20:22:52,785 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 [2019-10-13 20:22:52,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6607 states. [2019-10-13 20:22:53,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6607 to 5855. [2019-10-13 20:22:53,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5855 states. [2019-10-13 20:22:53,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5855 states to 5855 states and 8029 transitions. [2019-10-13 20:22:53,282 INFO L78 Accepts]: Start accepts. Automaton has 5855 states and 8029 transitions. Word has length 114 [2019-10-13 20:22:53,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:22:53,283 INFO L462 AbstractCegarLoop]: Abstraction has 5855 states and 8029 transitions. [2019-10-13 20:22:53,283 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 20:22:53,283 INFO L276 IsEmpty]: Start isEmpty. Operand 5855 states and 8029 transitions. [2019-10-13 20:22:53,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2019-10-13 20:22:53,297 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:22:53,298 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] [2019-10-13 20:22:53,298 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:22:53,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:22:53,299 INFO L82 PathProgramCache]: Analyzing trace with hash -1486037397, now seen corresponding path program 1 times [2019-10-13 20:22:53,299 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:22:53,299 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289571988] [2019-10-13 20:22:53,300 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:22:53,300 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:22:53,300 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:22:53,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:22:53,557 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-13 20:22:53,557 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289571988] [2019-10-13 20:22:53,558 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:22:53,559 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 20:22:53,559 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051560795] [2019-10-13 20:22:53,560 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 20:22:53,560 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:22:53,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 20:22:53,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 20:22:53,561 INFO L87 Difference]: Start difference. First operand 5855 states and 8029 transitions. Second operand 5 states. [2019-10-13 20:22:55,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:22:55,576 INFO L93 Difference]: Finished difference Result 11781 states and 16149 transitions. [2019-10-13 20:22:55,576 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 20:22:55,576 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 114 [2019-10-13 20:22:55,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:22:55,620 INFO L225 Difference]: With dead ends: 11781 [2019-10-13 20:22:55,620 INFO L226 Difference]: Without dead ends: 5951 [2019-10-13 20:22:55,650 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 [2019-10-13 20:22:55,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5951 states. [2019-10-13 20:22:56,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5951 to 5855. [2019-10-13 20:22:56,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5855 states. [2019-10-13 20:22:56,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5855 states to 5855 states and 8025 transitions. [2019-10-13 20:22:56,115 INFO L78 Accepts]: Start accepts. Automaton has 5855 states and 8025 transitions. Word has length 114 [2019-10-13 20:22:56,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:22:56,116 INFO L462 AbstractCegarLoop]: Abstraction has 5855 states and 8025 transitions. [2019-10-13 20:22:56,116 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 20:22:56,116 INFO L276 IsEmpty]: Start isEmpty. Operand 5855 states and 8025 transitions. [2019-10-13 20:22:56,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2019-10-13 20:22:56,120 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:22:56,120 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] [2019-10-13 20:22:56,121 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:22:56,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:22:56,121 INFO L82 PathProgramCache]: Analyzing trace with hash -784437523, now seen corresponding path program 1 times [2019-10-13 20:22:56,121 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:22:56,122 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334087648] [2019-10-13 20:22:56,122 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:22:56,122 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:22:56,122 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:22:56,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:22:56,304 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-13 20:22:56,304 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334087648] [2019-10-13 20:22:56,304 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:22:56,304 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 20:22:56,305 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92826707] [2019-10-13 20:22:56,305 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 20:22:56,305 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:22:56,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 20:22:56,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 20:22:56,306 INFO L87 Difference]: Start difference. First operand 5855 states and 8025 transitions. Second operand 5 states. [2019-10-13 20:22:56,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:22:56,904 INFO L93 Difference]: Finished difference Result 11805 states and 16181 transitions. [2019-10-13 20:22:56,904 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 20:22:56,905 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 114 [2019-10-13 20:22:56,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:22:56,956 INFO L225 Difference]: With dead ends: 11805 [2019-10-13 20:22:56,956 INFO L226 Difference]: Without dead ends: 5943 [2019-10-13 20:22:56,988 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 [2019-10-13 20:22:56,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5943 states. [2019-10-13 20:22:57,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5943 to 5875. [2019-10-13 20:22:57,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5875 states. [2019-10-13 20:22:57,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5875 states to 5875 states and 8047 transitions. [2019-10-13 20:22:57,262 INFO L78 Accepts]: Start accepts. Automaton has 5875 states and 8047 transitions. Word has length 114 [2019-10-13 20:22:57,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:22:57,263 INFO L462 AbstractCegarLoop]: Abstraction has 5875 states and 8047 transitions. [2019-10-13 20:22:57,263 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 20:22:57,263 INFO L276 IsEmpty]: Start isEmpty. Operand 5875 states and 8047 transitions. [2019-10-13 20:22:57,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-10-13 20:22:57,268 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:22:57,269 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] [2019-10-13 20:22:57,269 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:22:57,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:22:57,269 INFO L82 PathProgramCache]: Analyzing trace with hash 1778223152, now seen corresponding path program 1 times [2019-10-13 20:22:57,270 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:22:57,270 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425163343] [2019-10-13 20:22:57,270 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:22:57,270 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:22:57,270 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:23:00,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:23:00,401 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-13 20:23:00,401 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425163343] [2019-10-13 20:23:00,401 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:23:00,402 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 20:23:00,402 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447979397] [2019-10-13 20:23:00,402 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 20:23:00,403 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:23:00,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 20:23:00,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-13 20:23:00,403 INFO L87 Difference]: Start difference. First operand 5875 states and 8047 transitions. Second operand 11 states. [2019-10-13 20:23:04,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:23:04,337 INFO L93 Difference]: Finished difference Result 11793 states and 16183 transitions. [2019-10-13 20:23:04,339 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-13 20:23:04,339 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 150 [2019-10-13 20:23:04,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:23:04,372 INFO L225 Difference]: With dead ends: 11793 [2019-10-13 20:23:04,372 INFO L226 Difference]: Without dead ends: 5895 [2019-10-13 20:23:04,397 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 [2019-10-13 20:23:04,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5895 states. [2019-10-13 20:23:04,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5895 to 5887. [2019-10-13 20:23:04,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5887 states. [2019-10-13 20:23:04,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5887 states to 5887 states and 8061 transitions. [2019-10-13 20:23:04,698 INFO L78 Accepts]: Start accepts. Automaton has 5887 states and 8061 transitions. Word has length 150 [2019-10-13 20:23:04,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:23:04,698 INFO L462 AbstractCegarLoop]: Abstraction has 5887 states and 8061 transitions. [2019-10-13 20:23:04,699 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 20:23:04,699 INFO L276 IsEmpty]: Start isEmpty. Operand 5887 states and 8061 transitions. [2019-10-13 20:23:04,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-10-13 20:23:04,704 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:23:04,705 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] [2019-10-13 20:23:04,705 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:23:04,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:23:04,705 INFO L82 PathProgramCache]: Analyzing trace with hash 1711216399, now seen corresponding path program 1 times [2019-10-13 20:23:04,706 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:23:04,706 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878135937] [2019-10-13 20:23:04,706 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:23:04,706 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:23:04,706 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:23:04,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:23:04,950 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-13 20:23:04,951 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878135937] [2019-10-13 20:23:04,951 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:23:04,951 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 20:23:04,951 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279967004] [2019-10-13 20:23:04,952 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 20:23:04,952 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:23:04,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 20:23:04,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-13 20:23:04,953 INFO L87 Difference]: Start difference. First operand 5887 states and 8061 transitions. Second operand 6 states.