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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-usb-misc-iowarrior.ko.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:32:29,340 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:32:29,342 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:32:29,354 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:32:29,355 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:32:29,356 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:32:29,357 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:32:29,359 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:32:29,361 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:32:29,362 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:32:29,363 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:32:29,364 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:32:29,364 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:32:29,365 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:32:29,367 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:32:29,369 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:32:29,369 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:32:29,370 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:32:29,372 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:32:29,374 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:32:29,376 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:32:29,377 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:32:29,381 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:32:29,382 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:32:29,388 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:32:29,389 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:32:29,389 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:32:29,390 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:32:29,390 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:32:29,392 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:32:29,392 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:32:29,393 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:32:29,394 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:32:29,395 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:32:29,396 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:32:29,396 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:32:29,397 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:32:29,397 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:32:29,397 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:32:29,398 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:32:29,399 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:32:29,399 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-20 13:32:29,420 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:32:29,424 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:32:29,425 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:32:29,425 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:32:29,426 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:32:29,426 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:32:29,427 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:32:29,427 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:32:29,427 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:32:29,427 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:32:29,430 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:32:29,430 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:32:29,430 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:32:29,431 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:32:29,431 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:32:29,431 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:32:29,431 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:32:29,432 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:32:29,432 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:32:29,432 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:32:29,433 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:32:29,433 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:32:29,433 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:32:29,433 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:32:29,434 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:32:29,434 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:32:29,434 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:32:29,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:32:29,434 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:32:29,435 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:32:29,490 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:32:29,502 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:32:29,505 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:32:29,506 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:32:29,507 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:32:29,507 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-usb-misc-iowarrior.ko.cil.out.i [2019-09-20 13:32:29,571 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9ae78e2f/da9e4ccfc55746818267365e80e1afe7/FLAGe130e1888 [2019-09-20 13:32:30,336 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:32:30,337 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-usb-misc-iowarrior.ko.cil.out.i [2019-09-20 13:32:30,369 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9ae78e2f/da9e4ccfc55746818267365e80e1afe7/FLAGe130e1888 [2019-09-20 13:32:30,387 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9ae78e2f/da9e4ccfc55746818267365e80e1afe7 [2019-09-20 13:32:30,396 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:32:30,397 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:32:30,398 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:32:30,398 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:32:30,402 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:32:30,403 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:32:30" (1/1) ... [2019-09-20 13:32:30,405 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dfcc166 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:32:30, skipping insertion in model container [2019-09-20 13:32:30,406 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:32:30" (1/1) ... [2019-09-20 13:32:30,412 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:32:30,538 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:32:31,816 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:32:31,881 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:32:32,225 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:32:32,377 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:32:32,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:32:32 WrapperNode [2019-09-20 13:32:32,378 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:32:32,379 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:32:32,379 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:32:32,380 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:32:32,392 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:32:32" (1/1) ... [2019-09-20 13:32:32,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:32:32" (1/1) ... [2019-09-20 13:32:32,442 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:32:32" (1/1) ... [2019-09-20 13:32:32,443 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:32:32" (1/1) ... [2019-09-20 13:32:32,574 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:32:32" (1/1) ... [2019-09-20 13:32:32,603 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:32:32" (1/1) ... [2019-09-20 13:32:32,620 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:32:32" (1/1) ... [2019-09-20 13:32:32,637 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:32:32,638 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:32:32,638 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:32:32,638 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:32:32,640 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:32:32" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:32:32,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:32:32,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:32:32,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2019-09-20 13:32:32,697 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2019-09-20 13:32:32,697 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2019-09-20 13:32:32,698 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2019-09-20 13:32:32,698 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2019-09-20 13:32:32,698 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2019-09-20 13:32:32,698 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2019-09-20 13:32:32,698 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2019-09-20 13:32:32,699 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-09-20 13:32:32,699 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2019-09-20 13:32:32,699 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2019-09-20 13:32:32,699 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_name [2019-09-20 13:32:32,700 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2019-09-20 13:32:32,700 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2019-09-20 13:32:32,700 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2019-09-20 13:32:32,700 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2019-09-20 13:32:32,700 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_out [2019-09-20 13:32:32,701 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2019-09-20 13:32:32,701 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-09-20 13:32:32,701 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2019-09-20 13:32:32,701 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2019-09-20 13:32:32,702 INFO L138 BoogieDeclarations]: Found implementation of procedure test_tsk_thread_flag [2019-09-20 13:32:32,702 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2019-09-20 13:32:32,702 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2019-09-20 13:32:32,702 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2019-09-20 13:32:32,702 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2019-09-20 13:32:32,703 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register [2019-09-20 13:32:32,703 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2019-09-20 13:32:32,703 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2019-09-20 13:32:32,703 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-09-20 13:32:32,703 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-09-20 13:32:32,703 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2019-09-20 13:32:32,704 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_report [2019-09-20 13:32:32,704 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_report [2019-09-20 13:32:32,704 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_callback [2019-09-20 13:32:32,704 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_write_callback [2019-09-20 13:32:32,704 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_delete [2019-09-20 13:32:32,705 INFO L138 BoogieDeclarations]: Found implementation of procedure read_index [2019-09-20 13:32:32,705 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_read [2019-09-20 13:32:32,705 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_write [2019-09-20 13:32:32,705 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_ioctl [2019-09-20 13:32:32,705 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_open [2019-09-20 13:32:32,706 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_release [2019-09-20 13:32:32,706 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_poll [2019-09-20 13:32:32,706 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_devnode [2019-09-20 13:32:32,706 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_probe [2019-09-20 13:32:32,706 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_disconnect [2019-09-20 13:32:32,706 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_init [2019-09-20 13:32:32,707 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_exit [2019-09-20 13:32:32,707 INFO L138 BoogieDeclarations]: Found implementation of procedure init_module [2019-09-20 13:32:32,707 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup_module [2019-09-20 13:32:32,707 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:32:32,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2019-09-20 13:32:32,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2019-09-20 13:32:32,708 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2019-09-20 13:32:32,708 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2019-09-20 13:32:32,708 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2019-09-20 13:32:32,708 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2019-09-20 13:32:32,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-09-20 13:32:32,709 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-09-20 13:32:32,709 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-09-20 13:32:32,709 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2019-09-20 13:32:32,709 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-09-20 13:32:32,709 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2019-09-20 13:32:32,710 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2019-09-20 13:32:32,710 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-09-20 13:32:32,710 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2019-09-20 13:32:32,710 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2019-09-20 13:32:32,710 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2019-09-20 13:32:32,710 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-09-20 13:32:32,711 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-09-20 13:32:32,711 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-09-20 13:32:32,711 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2019-09-20 13:32:32,711 INFO L138 BoogieDeclarations]: Found implementation of procedure kasprintf [2019-09-20 13:32:32,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2019-09-20 13:32:32,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-09-20 13:32:32,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2019-09-20 13:32:32,712 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-09-20 13:32:32,712 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2019-09-20 13:32:32,712 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-09-20 13:32:32,713 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2019-09-20 13:32:32,713 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-09-20 13:32:32,759 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2019-09-20 13:32:32,759 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2019-09-20 13:32:32,759 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2019-09-20 13:32:32,759 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister_dev [2019-09-20 13:32:32,760 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_find_interface [2019-09-20 13:32:32,760 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2019-09-20 13:32:32,760 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_dev [2019-09-20 13:32:32,761 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2019-09-20 13:32:32,761 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_string [2019-09-20 13:32:32,761 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2019-09-20 13:32:32,761 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2019-09-20 13:32:32,761 INFO L138 BoogieDeclarations]: Found implementation of procedure autoremove_wake_function [2019-09-20 13:32:32,761 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-09-20 13:32:32,761 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-09-20 13:32:32,762 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-09-20 13:32:32,762 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-09-20 13:32:32,762 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:32:32,762 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2019-09-20 13:32:32,762 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-09-20 13:32:32,762 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2019-09-20 13:32:32,763 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-09-20 13:32:32,763 INFO L130 BoogieDeclarations]: Found specification of procedure kasprintf [2019-09-20 13:32:32,763 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-09-20 13:32:32,763 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2019-09-20 13:32:32,763 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-09-20 13:32:32,763 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-09-20 13:32:32,764 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2019-09-20 13:32:32,764 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2019-09-20 13:32:32,764 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2019-09-20 13:32:32,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:32:32,764 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2019-09-20 13:32:32,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:32:32,764 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2019-09-20 13:32:32,765 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2019-09-20 13:32:32,765 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2019-09-20 13:32:32,765 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-09-20 13:32:32,765 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2019-09-20 13:32:32,765 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2019-09-20 13:32:32,765 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-09-20 13:32:32,765 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2019-09-20 13:32:32,766 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2019-09-20 13:32:32,766 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-09-20 13:32:32,766 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2019-09-20 13:32:32,767 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2019-09-20 13:32:32,768 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2019-09-20 13:32:32,768 INFO L130 BoogieDeclarations]: Found specification of procedure autoremove_wake_function [2019-09-20 13:32:32,769 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2019-09-20 13:32:32,769 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2019-09-20 13:32:32,769 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-09-20 13:32:32,769 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-09-20 13:32:32,769 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_name [2019-09-20 13:32:32,769 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:32:32,769 INFO L130 BoogieDeclarations]: Found specification of procedure init_module [2019-09-20 13:32:32,770 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup_module [2019-09-20 13:32:32,771 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2019-09-20 13:32:32,772 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2019-09-20 13:32:32,772 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2019-09-20 13:32:32,772 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2019-09-20 13:32:32,772 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_out [2019-09-20 13:32:32,772 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-09-20 13:32:32,773 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2019-09-20 13:32:32,773 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2019-09-20 13:32:32,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:32:32,776 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-09-20 13:32:32,776 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2019-09-20 13:32:32,776 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-09-20 13:32:32,776 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-09-20 13:32:32,777 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-09-20 13:32:32,777 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2019-09-20 13:32:32,777 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2019-09-20 13:32:32,777 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2019-09-20 13:32:32,777 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2019-09-20 13:32:32,777 INFO L130 BoogieDeclarations]: Found specification of procedure test_tsk_thread_flag [2019-09-20 13:32:32,778 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2019-09-20 13:32:32,778 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2019-09-20 13:32:32,778 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2019-09-20 13:32:32,778 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2019-09-20 13:32:32,778 INFO L130 BoogieDeclarations]: Found specification of procedure usb_find_interface [2019-09-20 13:32:32,778 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2019-09-20 13:32:32,778 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register [2019-09-20 13:32:32,779 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2019-09-20 13:32:32,779 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_dev [2019-09-20 13:32:32,779 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister_dev [2019-09-20 13:32:32,779 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2019-09-20 13:32:32,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:32:32,779 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2019-09-20 13:32:32,779 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2019-09-20 13:32:32,780 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2019-09-20 13:32:32,780 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2019-09-20 13:32:32,780 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2019-09-20 13:32:32,780 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2019-09-20 13:32:32,780 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2019-09-20 13:32:32,780 INFO L130 BoogieDeclarations]: Found specification of procedure usb_string [2019-09-20 13:32:32,780 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2019-09-20 13:32:32,781 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-09-20 13:32:32,781 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-09-20 13:32:32,781 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-09-20 13:32:32,781 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2019-09-20 13:32:32,781 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2019-09-20 13:32:32,781 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_report [2019-09-20 13:32:32,781 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_report [2019-09-20 13:32:32,782 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_callback [2019-09-20 13:32:32,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-09-20 13:32:32,782 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_write_callback [2019-09-20 13:32:32,782 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_delete [2019-09-20 13:32:32,782 INFO L130 BoogieDeclarations]: Found specification of procedure read_index [2019-09-20 13:32:32,782 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_read [2019-09-20 13:32:32,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:32:32,783 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_write [2019-09-20 13:32:32,783 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_ioctl [2019-09-20 13:32:32,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-09-20 13:32:32,783 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_open [2019-09-20 13:32:32,783 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_release [2019-09-20 13:32:32,783 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_poll [2019-09-20 13:32:32,783 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_devnode [2019-09-20 13:32:32,784 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_probe [2019-09-20 13:32:32,784 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_disconnect [2019-09-20 13:32:32,784 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_init [2019-09-20 13:32:32,784 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_exit [2019-09-20 13:32:32,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-09-20 13:32:32,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2019-09-20 13:32:32,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-09-20 13:32:32,785 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:32:32,785 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:32:32,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2019-09-20 13:32:32,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2019-09-20 13:32:32,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2019-09-20 13:32:32,788 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-09-20 13:32:32,788 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-09-20 13:32:32,788 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-09-20 13:32:32,788 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:32:32,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:32:32,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:32:32,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-20 13:32:32,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:32:32,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-09-20 13:32:32,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-09-20 13:32:32,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-09-20 13:32:32,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-09-20 13:32:33,706 WARN L730 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-09-20 13:32:33,727 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2019-09-20 13:32:33,727 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2019-09-20 13:32:33,775 WARN L730 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-09-20 13:32:34,021 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume !false; [2019-09-20 13:32:34,021 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume false; [2019-09-20 13:32:34,084 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2019-09-20 13:32:36,044 WARN L730 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-09-20 13:32:36,144 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##36: assume !false; [2019-09-20 13:32:36,144 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##35: assume false; [2019-09-20 13:32:36,242 WARN L730 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-09-20 13:32:36,475 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume false; [2019-09-20 13:32:36,475 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##22: assume !false; [2019-09-20 13:32:36,618 WARN L730 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-09-20 13:32:36,687 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2019-09-20 13:32:36,687 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2019-09-20 13:32:37,013 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:32:37,013 INFO L283 CfgBuilder]: Removed 27 assume(true) statements. [2019-09-20 13:32:37,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:32:37 BoogieIcfgContainer [2019-09-20 13:32:37,015 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:32:37,017 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:32:37,017 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:32:37,020 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:32:37,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:32:30" (1/3) ... [2019-09-20 13:32:37,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56d984b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:32:37, skipping insertion in model container [2019-09-20 13:32:37,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:32:32" (2/3) ... [2019-09-20 13:32:37,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56d984b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:32:37, skipping insertion in model container [2019-09-20 13:32:37,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:32:37" (3/3) ... [2019-09-20 13:32:37,024 INFO L109 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-usb-misc-iowarrior.ko.cil.out.i [2019-09-20 13:32:37,035 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:32:37,045 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:32:37,063 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:32:37,091 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:32:37,092 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:32:37,092 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:32:37,092 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:32:37,092 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:32:37,092 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:32:37,092 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:32:37,092 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:32:37,124 INFO L276 IsEmpty]: Start isEmpty. Operand 820 states. [2019-09-20 13:32:37,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-09-20 13:32:37,135 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:32:37,136 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:32:37,139 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:32:37,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:32:37,145 INFO L82 PathProgramCache]: Analyzing trace with hash -928143929, now seen corresponding path program 1 times [2019-09-20 13:32:37,148 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:32:37,219 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:32:37,220 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:32:37,220 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:32:37,220 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:32:37,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:32:37,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:32:37,810 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:32:37,810 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:32:37,810 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:32:37,815 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:32:37,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:32:37,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:32:37,834 INFO L87 Difference]: Start difference. First operand 820 states. Second operand 3 states. [2019-09-20 13:32:38,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:32:38,049 INFO L93 Difference]: Finished difference Result 1502 states and 1968 transitions. [2019-09-20 13:32:38,050 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:32:38,051 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2019-09-20 13:32:38,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:32:38,099 INFO L225 Difference]: With dead ends: 1502 [2019-09-20 13:32:38,099 INFO L226 Difference]: Without dead ends: 1489 [2019-09-20 13:32:38,101 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:32:38,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1489 states. [2019-09-20 13:32:38,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1489 to 1485. [2019-09-20 13:32:38,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1485 states. [2019-09-20 13:32:38,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1485 states to 1485 states and 1947 transitions. [2019-09-20 13:32:38,305 INFO L78 Accepts]: Start accepts. Automaton has 1485 states and 1947 transitions. Word has length 29 [2019-09-20 13:32:38,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:32:38,306 INFO L475 AbstractCegarLoop]: Abstraction has 1485 states and 1947 transitions. [2019-09-20 13:32:38,306 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:32:38,306 INFO L276 IsEmpty]: Start isEmpty. Operand 1485 states and 1947 transitions. [2019-09-20 13:32:38,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-09-20 13:32:38,308 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:32:38,308 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:32:38,309 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:32:38,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:32:38,309 INFO L82 PathProgramCache]: Analyzing trace with hash 1291841066, now seen corresponding path program 1 times [2019-09-20 13:32:38,309 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:32:38,327 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:32:38,327 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:32:38,327 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:32:38,327 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:32:38,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:32:38,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:32:38,550 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:32:38,550 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:32:38,550 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:32:38,552 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:32:38,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:32:38,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:32:38,554 INFO L87 Difference]: Start difference. First operand 1485 states and 1947 transitions. Second operand 3 states. [2019-09-20 13:32:38,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:32:38,666 INFO L93 Difference]: Finished difference Result 2942 states and 3867 transitions. [2019-09-20 13:32:38,667 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:32:38,667 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2019-09-20 13:32:38,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:32:38,693 INFO L225 Difference]: With dead ends: 2942 [2019-09-20 13:32:38,694 INFO L226 Difference]: Without dead ends: 2932 [2019-09-20 13:32:38,694 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:32:38,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2932 states. [2019-09-20 13:32:38,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2932 to 2925. [2019-09-20 13:32:38,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2925 states. [2019-09-20 13:32:38,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2925 states to 2925 states and 3847 transitions. [2019-09-20 13:32:38,818 INFO L78 Accepts]: Start accepts. Automaton has 2925 states and 3847 transitions. Word has length 30 [2019-09-20 13:32:38,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:32:38,819 INFO L475 AbstractCegarLoop]: Abstraction has 2925 states and 3847 transitions. [2019-09-20 13:32:38,819 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:32:38,819 INFO L276 IsEmpty]: Start isEmpty. Operand 2925 states and 3847 transitions. [2019-09-20 13:32:38,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-09-20 13:32:38,827 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:32:38,827 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:32:38,827 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:32:38,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:32:38,828 INFO L82 PathProgramCache]: Analyzing trace with hash 1611504940, now seen corresponding path program 1 times [2019-09-20 13:32:38,828 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:32:38,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:32:38,836 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:32:38,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:32:38,836 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:32:38,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:32:39,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:32:39,015 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:32:39,015 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:32:39,015 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:32:39,016 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:32:39,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:32:39,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:32:39,017 INFO L87 Difference]: Start difference. First operand 2925 states and 3847 transitions. Second operand 3 states. [2019-09-20 13:32:39,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:32:39,172 INFO L93 Difference]: Finished difference Result 3059 states and 4061 transitions. [2019-09-20 13:32:39,172 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:32:39,173 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2019-09-20 13:32:39,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:32:39,191 INFO L225 Difference]: With dead ends: 3059 [2019-09-20 13:32:39,192 INFO L226 Difference]: Without dead ends: 3059 [2019-09-20 13:32:39,192 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:32:39,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3059 states. [2019-09-20 13:32:39,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3059 to 3053. [2019-09-20 13:32:39,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3053 states. [2019-09-20 13:32:39,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3053 states to 3053 states and 4052 transitions. [2019-09-20 13:32:39,298 INFO L78 Accepts]: Start accepts. Automaton has 3053 states and 4052 transitions. Word has length 70 [2019-09-20 13:32:39,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:32:39,299 INFO L475 AbstractCegarLoop]: Abstraction has 3053 states and 4052 transitions. [2019-09-20 13:32:39,299 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:32:39,299 INFO L276 IsEmpty]: Start isEmpty. Operand 3053 states and 4052 transitions. [2019-09-20 13:32:39,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-09-20 13:32:39,306 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:32:39,307 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:32:39,307 INFO L418 AbstractCegarLoop]: === Iteration 4 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:32:39,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:32:39,308 INFO L82 PathProgramCache]: Analyzing trace with hash 809410280, now seen corresponding path program 1 times [2019-09-20 13:32:39,308 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:32:39,317 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:32:39,318 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:32:39,318 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:32:39,318 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:32:39,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:32:39,519 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-09-20 13:32:39,519 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:32:39,520 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:32:39,520 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:32:39,520 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:32:39,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:32:39,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:32:39,521 INFO L87 Difference]: Start difference. First operand 3053 states and 4052 transitions. Second operand 3 states. [2019-09-20 13:32:39,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:32:39,592 INFO L93 Difference]: Finished difference Result 3327 states and 4488 transitions. [2019-09-20 13:32:39,593 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:32:39,593 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 108 [2019-09-20 13:32:39,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:32:39,617 INFO L225 Difference]: With dead ends: 3327 [2019-09-20 13:32:39,618 INFO L226 Difference]: Without dead ends: 3325 [2019-09-20 13:32:39,618 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:32:39,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3325 states. [2019-09-20 13:32:39,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3325 to 3319. [2019-09-20 13:32:39,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3319 states. [2019-09-20 13:32:39,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3319 states to 3319 states and 4476 transitions. [2019-09-20 13:32:39,735 INFO L78 Accepts]: Start accepts. Automaton has 3319 states and 4476 transitions. Word has length 108 [2019-09-20 13:32:39,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:32:39,735 INFO L475 AbstractCegarLoop]: Abstraction has 3319 states and 4476 transitions. [2019-09-20 13:32:39,735 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:32:39,735 INFO L276 IsEmpty]: Start isEmpty. Operand 3319 states and 4476 transitions. [2019-09-20 13:32:39,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2019-09-20 13:32:39,743 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:32:39,744 INFO L407 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] [2019-09-20 13:32:39,744 INFO L418 AbstractCegarLoop]: === Iteration 5 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:32:39,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:32:39,745 INFO L82 PathProgramCache]: Analyzing trace with hash -1857148663, now seen corresponding path program 1 times [2019-09-20 13:32:39,745 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:32:39,755 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:32:39,756 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:32:39,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:32:39,756 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:32:39,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:32:40,016 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-09-20 13:32:40,016 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:32:40,017 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:32:40,017 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:32:40,017 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:32:40,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:32:40,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:32:40,018 INFO L87 Difference]: Start difference. First operand 3319 states and 4476 transitions. Second operand 6 states. [2019-09-20 13:32:48,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:32:48,260 INFO L93 Difference]: Finished difference Result 6599 states and 9261 transitions. [2019-09-20 13:32:48,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-20 13:32:48,260 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 114 [2019-09-20 13:32:48,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:32:48,304 INFO L225 Difference]: With dead ends: 6599 [2019-09-20 13:32:48,305 INFO L226 Difference]: Without dead ends: 6599 [2019-09-20 13:32:48,305 INFO L636 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 [2019-09-20 13:32:48,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6599 states. [2019-09-20 13:32:48,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6599 to 5847. [2019-09-20 13:32:48,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5847 states. [2019-09-20 13:32:48,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5847 states to 5847 states and 8021 transitions. [2019-09-20 13:32:48,585 INFO L78 Accepts]: Start accepts. Automaton has 5847 states and 8021 transitions. Word has length 114 [2019-09-20 13:32:48,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:32:48,585 INFO L475 AbstractCegarLoop]: Abstraction has 5847 states and 8021 transitions. [2019-09-20 13:32:48,586 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:32:48,586 INFO L276 IsEmpty]: Start isEmpty. Operand 5847 states and 8021 transitions. [2019-09-20 13:32:48,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2019-09-20 13:32:48,595 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:32:48,596 INFO L407 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] [2019-09-20 13:32:48,596 INFO L418 AbstractCegarLoop]: === Iteration 6 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:32:48,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:32:48,597 INFO L82 PathProgramCache]: Analyzing trace with hash -1616908917, now seen corresponding path program 1 times [2019-09-20 13:32:48,597 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:32:48,610 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:32:48,610 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:32:48,611 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:32:48,611 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:32:48,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:32:48,858 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-09-20 13:32:48,859 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:32:48,859 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 13:32:48,859 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:32:48,860 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:32:48,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:32:48,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:32:48,861 INFO L87 Difference]: Start difference. First operand 5847 states and 8021 transitions. Second operand 5 states. [2019-09-20 13:32:50,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:32:50,932 INFO L93 Difference]: Finished difference Result 5943 states and 8125 transitions. [2019-09-20 13:32:50,933 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:32:50,933 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 114 [2019-09-20 13:32:50,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:32:50,973 INFO L225 Difference]: With dead ends: 5943 [2019-09-20 13:32:50,973 INFO L226 Difference]: Without dead ends: 5943 [2019-09-20 13:32:50,974 INFO L636 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 [2019-09-20 13:32:50,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5943 states. [2019-09-20 13:32:51,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5943 to 5847. [2019-09-20 13:32:51,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5847 states. [2019-09-20 13:32:51,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5847 states to 5847 states and 8017 transitions. [2019-09-20 13:32:51,284 INFO L78 Accepts]: Start accepts. Automaton has 5847 states and 8017 transitions. Word has length 114 [2019-09-20 13:32:51,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:32:51,285 INFO L475 AbstractCegarLoop]: Abstraction has 5847 states and 8017 transitions. [2019-09-20 13:32:51,285 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:32:51,286 INFO L276 IsEmpty]: Start isEmpty. Operand 5847 states and 8017 transitions. [2019-09-20 13:32:51,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2019-09-20 13:32:51,290 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:32:51,290 INFO L407 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] [2019-09-20 13:32:51,291 INFO L418 AbstractCegarLoop]: === Iteration 7 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:32:51,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:32:51,292 INFO L82 PathProgramCache]: Analyzing trace with hash -915309043, now seen corresponding path program 1 times [2019-09-20 13:32:51,292 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:32:51,300 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:32:51,300 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:32:51,300 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:32:51,300 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:32:51,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:32:51,492 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-09-20 13:32:51,492 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:32:51,493 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 13:32:51,493 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:32:51,494 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:32:51,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:32:51,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:32:51,495 INFO L87 Difference]: Start difference. First operand 5847 states and 8017 transitions. Second operand 5 states. [2019-09-20 13:32:51,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:32:51,997 INFO L93 Difference]: Finished difference Result 5967 states and 8157 transitions. [2019-09-20 13:32:51,997 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-20 13:32:51,997 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 114 [2019-09-20 13:32:51,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:32:52,031 INFO L225 Difference]: With dead ends: 5967 [2019-09-20 13:32:52,031 INFO L226 Difference]: Without dead ends: 5935 [2019-09-20 13:32:52,032 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:32:52,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5935 states. [2019-09-20 13:32:52,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5935 to 5867. [2019-09-20 13:32:52,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5867 states. [2019-09-20 13:32:52,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5867 states to 5867 states and 8039 transitions. [2019-09-20 13:32:52,230 INFO L78 Accepts]: Start accepts. Automaton has 5867 states and 8039 transitions. Word has length 114 [2019-09-20 13:32:52,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:32:52,231 INFO L475 AbstractCegarLoop]: Abstraction has 5867 states and 8039 transitions. [2019-09-20 13:32:52,231 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:32:52,231 INFO L276 IsEmpty]: Start isEmpty. Operand 5867 states and 8039 transitions. [2019-09-20 13:32:52,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-09-20 13:32:52,237 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:32:52,238 INFO L407 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] [2019-09-20 13:32:52,239 INFO L418 AbstractCegarLoop]: === Iteration 8 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:32:52,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:32:52,240 INFO L82 PathProgramCache]: Analyzing trace with hash -1355201745, now seen corresponding path program 1 times [2019-09-20 13:32:52,240 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:32:52,247 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:32:52,247 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:32:52,248 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:32:52,248 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:32:54,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:32:54,561 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-09-20 13:32:54,562 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:32:54,562 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-20 13:32:54,562 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:32:54,564 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-20 13:32:54,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-20 13:32:54,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:32:54,565 INFO L87 Difference]: Start difference. First operand 5867 states and 8039 transitions. Second operand 9 states. [2019-09-20 13:33:01,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:33:01,038 INFO L93 Difference]: Finished difference Result 5923 states and 8107 transitions. [2019-09-20 13:33:01,039 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-20 13:33:01,039 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 150 [2019-09-20 13:33:01,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:33:01,089 INFO L225 Difference]: With dead ends: 5923 [2019-09-20 13:33:01,090 INFO L226 Difference]: Without dead ends: 5875 [2019-09-20 13:33:01,090 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2019-09-20 13:33:01,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5875 states. [2019-09-20 13:33:01,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5875 to 5867. [2019-09-20 13:33:01,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5867 states. [2019-09-20 13:33:01,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5867 states to 5867 states and 8035 transitions. [2019-09-20 13:33:01,285 INFO L78 Accepts]: Start accepts. Automaton has 5867 states and 8035 transitions. Word has length 150 [2019-09-20 13:33:01,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:33:01,287 INFO L475 AbstractCegarLoop]: Abstraction has 5867 states and 8035 transitions. [2019-09-20 13:33:01,287 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-20 13:33:01,287 INFO L276 IsEmpty]: Start isEmpty. Operand 5867 states and 8035 transitions. [2019-09-20 13:33:01,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2019-09-20 13:33:01,294 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:33:01,294 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:33:01,295 INFO L418 AbstractCegarLoop]: === Iteration 9 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:33:01,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:33:01,295 INFO L82 PathProgramCache]: Analyzing trace with hash -743365788, now seen corresponding path program 1 times [2019-09-20 13:33:01,295 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:33:01,303 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:33:01,303 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:33:01,303 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:33:01,303 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:33:01,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:33:01,534 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-09-20 13:33:01,534 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:33:01,534 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:33:01,534 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:33:01,535 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:33:01,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:33:01,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:33:01,535 INFO L87 Difference]: Start difference. First operand 5867 states and 8035 transitions. Second operand 6 states. [2019-09-20 13:33:02,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:33:02,213 INFO L93 Difference]: Finished difference Result 5963 states and 8145 transitions. [2019-09-20 13:33:02,214 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:33:02,214 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 157 [2019-09-20 13:33:02,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:33:02,236 INFO L225 Difference]: With dead ends: 5963 [2019-09-20 13:33:02,236 INFO L226 Difference]: Without dead ends: 5938 [2019-09-20 13:33:02,237 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:33:02,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5938 states. [2019-09-20 13:33:02,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5938 to 5868. [2019-09-20 13:33:02,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5868 states. [2019-09-20 13:33:02,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5868 states to 5868 states and 8038 transitions. [2019-09-20 13:33:02,447 INFO L78 Accepts]: Start accepts. Automaton has 5868 states and 8038 transitions. Word has length 157 [2019-09-20 13:33:02,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:33:02,448 INFO L475 AbstractCegarLoop]: Abstraction has 5868 states and 8038 transitions. [2019-09-20 13:33:02,448 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:33:02,448 INFO L276 IsEmpty]: Start isEmpty. Operand 5868 states and 8038 transitions. [2019-09-20 13:33:02,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-09-20 13:33:02,457 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:33:02,457 INFO L407 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:33:02,457 INFO L418 AbstractCegarLoop]: === Iteration 10 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:33:02,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:33:02,458 INFO L82 PathProgramCache]: Analyzing trace with hash 250653038, now seen corresponding path program 1 times [2019-09-20 13:33:02,458 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:33:02,467 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:33:02,467 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:33:02,467 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:33:02,467 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:33:02,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:33:02,652 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2019-09-20 13:33:02,653 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:33:02,653 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:33:02,653 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:33:02,653 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:33:02,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:33:02,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:33:02,654 INFO L87 Difference]: Start difference. First operand 5868 states and 8038 transitions. Second operand 6 states. [2019-09-20 13:33:03,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:33:03,342 INFO L93 Difference]: Finished difference Result 6012 states and 8218 transitions. [2019-09-20 13:33:03,342 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:33:03,342 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 148 [2019-09-20 13:33:03,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:33:03,365 INFO L225 Difference]: With dead ends: 6012 [2019-09-20 13:33:03,366 INFO L226 Difference]: Without dead ends: 5984 [2019-09-20 13:33:03,366 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:33:03,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5984 states. [2019-09-20 13:33:03,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5984 to 5886. [2019-09-20 13:33:03,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5886 states.