java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-usb-misc-iowarrior.ko.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:09:10,034 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:09:10,037 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:09:10,057 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:09:10,057 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:09:10,059 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:09:10,061 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:09:10,070 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:09:10,074 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:09:10,077 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:09:10,079 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:09:10,082 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:09:10,082 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:09:10,084 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:09:10,086 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:09:10,087 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:09:10,088 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:09:10,090 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:09:10,091 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:09:10,093 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:09:10,094 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:09:10,095 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:09:10,096 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:09:10,097 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:09:10,099 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:09:10,099 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:09:10,099 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:09:10,100 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:09:10,100 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:09:10,101 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:09:10,101 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:09:10,102 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:09:10,103 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:09:10,104 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:09:10,104 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:09:10,105 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:09:10,105 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:09:10,105 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:09:10,106 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:09:10,106 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:09:10,107 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:09:10,108 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-09-20 13:09:10,125 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:09:10,125 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:09:10,126 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-20 13:09:10,127 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-20 13:09:10,127 INFO L138 SettingsManager]: * Use SBE=true [2019-09-20 13:09:10,127 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:09:10,127 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:09:10,127 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-20 13:09:10,128 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:09:10,128 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:09:10,128 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:09:10,128 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:09:10,128 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:09:10,129 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:09:10,129 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:09:10,129 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-20 13:09:10,130 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:09:10,131 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:09:10,131 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:09:10,131 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-20 13:09:10,131 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-20 13:09:10,131 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:09:10,132 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:09:10,132 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:09:10,132 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-20 13:09:10,133 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-20 13:09:10,133 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:09:10,133 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-20 13:09:10,133 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:09:10,180 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:09:10,197 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:09:10,201 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:09:10,202 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:09:10,203 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:09:10,203 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-usb-misc-iowarrior.ko.cil.out.i [2019-09-20 13:09:10,272 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/789717ba0/c51dc43f9c684b60b6e2a21b35d04581/FLAG884a59576 [2019-09-20 13:09:11,001 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:09:11,002 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-usb-misc-iowarrior.ko.cil.out.i [2019-09-20 13:09:11,036 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/789717ba0/c51dc43f9c684b60b6e2a21b35d04581/FLAG884a59576 [2019-09-20 13:09:11,059 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/789717ba0/c51dc43f9c684b60b6e2a21b35d04581 [2019-09-20 13:09:11,070 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:09:11,071 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:09:11,072 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:09:11,072 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:09:11,076 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:09:11,077 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:09:11" (1/1) ... [2019-09-20 13:09:11,079 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cf83f91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:09:11, skipping insertion in model container [2019-09-20 13:09:11,079 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:09:11" (1/1) ... [2019-09-20 13:09:11,087 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:09:11,189 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:09:12,534 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:09:12,616 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:09:12,849 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:09:13,018 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:09:13,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:09:13 WrapperNode [2019-09-20 13:09:13,019 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:09:13,020 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:09:13,020 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:09:13,021 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:09:13,036 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:09:13" (1/1) ... [2019-09-20 13:09:13,037 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:09:13" (1/1) ... [2019-09-20 13:09:13,088 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:09:13" (1/1) ... [2019-09-20 13:09:13,089 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:09:13" (1/1) ... [2019-09-20 13:09:13,186 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:09:13" (1/1) ... [2019-09-20 13:09:13,226 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:09:13" (1/1) ... [2019-09-20 13:09:13,253 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:09:13" (1/1) ... [2019-09-20 13:09:13,276 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:09:13,276 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:09:13,277 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:09:13,277 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:09:13,278 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:09:13" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:09:13,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:09:13,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:09:13,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2019-09-20 13:09:13,337 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2019-09-20 13:09:13,337 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2019-09-20 13:09:13,338 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2019-09-20 13:09:13,338 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2019-09-20 13:09:13,338 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2019-09-20 13:09:13,338 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2019-09-20 13:09:13,339 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2019-09-20 13:09:13,339 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-09-20 13:09:13,339 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2019-09-20 13:09:13,339 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2019-09-20 13:09:13,340 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_name [2019-09-20 13:09:13,340 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2019-09-20 13:09:13,340 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2019-09-20 13:09:13,340 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2019-09-20 13:09:13,340 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2019-09-20 13:09:13,341 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_out [2019-09-20 13:09:13,341 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2019-09-20 13:09:13,341 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-09-20 13:09:13,341 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2019-09-20 13:09:13,342 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2019-09-20 13:09:13,342 INFO L138 BoogieDeclarations]: Found implementation of procedure test_tsk_thread_flag [2019-09-20 13:09:13,342 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2019-09-20 13:09:13,342 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2019-09-20 13:09:13,343 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2019-09-20 13:09:13,343 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2019-09-20 13:09:13,343 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register [2019-09-20 13:09:13,343 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2019-09-20 13:09:13,343 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2019-09-20 13:09:13,343 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-09-20 13:09:13,344 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-09-20 13:09:13,344 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2019-09-20 13:09:13,344 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_report [2019-09-20 13:09:13,344 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_report [2019-09-20 13:09:13,344 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_callback [2019-09-20 13:09:13,344 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_write_callback [2019-09-20 13:09:13,345 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_delete [2019-09-20 13:09:13,345 INFO L138 BoogieDeclarations]: Found implementation of procedure read_index [2019-09-20 13:09:13,345 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_read [2019-09-20 13:09:13,345 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_write [2019-09-20 13:09:13,345 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_ioctl [2019-09-20 13:09:13,345 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_open [2019-09-20 13:09:13,346 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_release [2019-09-20 13:09:13,346 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_poll [2019-09-20 13:09:13,346 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_devnode [2019-09-20 13:09:13,346 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_probe [2019-09-20 13:09:13,346 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_disconnect [2019-09-20 13:09:13,346 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_init [2019-09-20 13:09:13,347 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_exit [2019-09-20 13:09:13,347 INFO L138 BoogieDeclarations]: Found implementation of procedure init_module [2019-09-20 13:09:13,347 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup_module [2019-09-20 13:09:13,347 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:09:13,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2019-09-20 13:09:13,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2019-09-20 13:09:13,348 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2019-09-20 13:09:13,392 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2019-09-20 13:09:13,393 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2019-09-20 13:09:13,393 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2019-09-20 13:09:13,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-09-20 13:09:13,393 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-09-20 13:09:13,394 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-09-20 13:09:13,394 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2019-09-20 13:09:13,394 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-09-20 13:09:13,394 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2019-09-20 13:09:13,394 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2019-09-20 13:09:13,394 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-09-20 13:09:13,395 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2019-09-20 13:09:13,395 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2019-09-20 13:09:13,395 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2019-09-20 13:09:13,395 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-09-20 13:09:13,395 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-09-20 13:09:13,395 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-09-20 13:09:13,396 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2019-09-20 13:09:13,396 INFO L138 BoogieDeclarations]: Found implementation of procedure kasprintf [2019-09-20 13:09:13,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2019-09-20 13:09:13,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-09-20 13:09:13,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2019-09-20 13:09:13,397 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-09-20 13:09:13,397 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2019-09-20 13:09:13,397 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-09-20 13:09:13,397 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2019-09-20 13:09:13,398 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-09-20 13:09:13,398 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2019-09-20 13:09:13,398 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2019-09-20 13:09:13,398 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2019-09-20 13:09:13,398 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister_dev [2019-09-20 13:09:13,398 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_find_interface [2019-09-20 13:09:13,398 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2019-09-20 13:09:13,399 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_dev [2019-09-20 13:09:13,399 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2019-09-20 13:09:13,399 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_string [2019-09-20 13:09:13,400 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2019-09-20 13:09:13,400 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2019-09-20 13:09:13,400 INFO L138 BoogieDeclarations]: Found implementation of procedure autoremove_wake_function [2019-09-20 13:09:13,400 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-09-20 13:09:13,401 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-09-20 13:09:13,401 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-09-20 13:09:13,401 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-09-20 13:09:13,401 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:09:13,401 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2019-09-20 13:09:13,401 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-09-20 13:09:13,401 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2019-09-20 13:09:13,402 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-09-20 13:09:13,402 INFO L130 BoogieDeclarations]: Found specification of procedure kasprintf [2019-09-20 13:09:13,402 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-09-20 13:09:13,402 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2019-09-20 13:09:13,402 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-09-20 13:09:13,402 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-09-20 13:09:13,403 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2019-09-20 13:09:13,403 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2019-09-20 13:09:13,403 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2019-09-20 13:09:13,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:09:13,403 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2019-09-20 13:09:13,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:09:13,403 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2019-09-20 13:09:13,404 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2019-09-20 13:09:13,404 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2019-09-20 13:09:13,404 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-09-20 13:09:13,404 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2019-09-20 13:09:13,404 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2019-09-20 13:09:13,404 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-09-20 13:09:13,405 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2019-09-20 13:09:13,405 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2019-09-20 13:09:13,405 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-09-20 13:09:13,405 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2019-09-20 13:09:13,405 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2019-09-20 13:09:13,405 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2019-09-20 13:09:13,406 INFO L130 BoogieDeclarations]: Found specification of procedure autoremove_wake_function [2019-09-20 13:09:13,406 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2019-09-20 13:09:13,406 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2019-09-20 13:09:13,406 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-09-20 13:09:13,406 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-09-20 13:09:13,406 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_name [2019-09-20 13:09:13,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:09:13,407 INFO L130 BoogieDeclarations]: Found specification of procedure init_module [2019-09-20 13:09:13,407 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup_module [2019-09-20 13:09:13,407 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2019-09-20 13:09:13,407 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2019-09-20 13:09:13,407 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2019-09-20 13:09:13,408 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2019-09-20 13:09:13,408 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_out [2019-09-20 13:09:13,408 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-09-20 13:09:13,408 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2019-09-20 13:09:13,408 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2019-09-20 13:09:13,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:09:13,409 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-09-20 13:09:13,409 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2019-09-20 13:09:13,409 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-09-20 13:09:13,409 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-09-20 13:09:13,409 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-09-20 13:09:13,409 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2019-09-20 13:09:13,410 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2019-09-20 13:09:13,410 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2019-09-20 13:09:13,410 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2019-09-20 13:09:13,410 INFO L130 BoogieDeclarations]: Found specification of procedure test_tsk_thread_flag [2019-09-20 13:09:13,410 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2019-09-20 13:09:13,410 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2019-09-20 13:09:13,410 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2019-09-20 13:09:13,411 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2019-09-20 13:09:13,411 INFO L130 BoogieDeclarations]: Found specification of procedure usb_find_interface [2019-09-20 13:09:13,411 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2019-09-20 13:09:13,411 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register [2019-09-20 13:09:13,411 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2019-09-20 13:09:13,411 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_dev [2019-09-20 13:09:13,411 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister_dev [2019-09-20 13:09:13,412 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2019-09-20 13:09:13,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:09:13,412 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2019-09-20 13:09:13,412 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2019-09-20 13:09:13,412 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2019-09-20 13:09:13,412 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2019-09-20 13:09:13,412 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2019-09-20 13:09:13,413 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2019-09-20 13:09:13,413 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2019-09-20 13:09:13,413 INFO L130 BoogieDeclarations]: Found specification of procedure usb_string [2019-09-20 13:09:13,413 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2019-09-20 13:09:13,413 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-09-20 13:09:13,413 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-09-20 13:09:13,413 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-09-20 13:09:13,414 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2019-09-20 13:09:13,414 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2019-09-20 13:09:13,414 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_report [2019-09-20 13:09:13,414 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_report [2019-09-20 13:09:13,414 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_callback [2019-09-20 13:09:13,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-09-20 13:09:13,414 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_write_callback [2019-09-20 13:09:13,415 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_delete [2019-09-20 13:09:13,415 INFO L130 BoogieDeclarations]: Found specification of procedure read_index [2019-09-20 13:09:13,415 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_read [2019-09-20 13:09:13,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:09:13,415 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_write [2019-09-20 13:09:13,415 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_ioctl [2019-09-20 13:09:13,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-09-20 13:09:13,416 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_open [2019-09-20 13:09:13,416 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_release [2019-09-20 13:09:13,416 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_poll [2019-09-20 13:09:13,416 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_devnode [2019-09-20 13:09:13,416 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_probe [2019-09-20 13:09:13,416 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_disconnect [2019-09-20 13:09:13,416 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_init [2019-09-20 13:09:13,417 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_exit [2019-09-20 13:09:13,417 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-09-20 13:09:13,417 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2019-09-20 13:09:13,417 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-09-20 13:09:13,417 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:09:13,417 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:09:13,417 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2019-09-20 13:09:13,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2019-09-20 13:09:13,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2019-09-20 13:09:13,418 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-09-20 13:09:13,418 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-09-20 13:09:13,418 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-09-20 13:09:13,418 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:09:13,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:09:13,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:09:13,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-20 13:09:13,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:09:13,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-09-20 13:09:13,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-09-20 13:09:13,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-09-20 13:09:13,420 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-09-20 13:09:14,284 WARN L730 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-09-20 13:09:14,300 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2019-09-20 13:09:14,300 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2019-09-20 13:09:14,342 WARN L730 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-09-20 13:09:14,592 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume !false; [2019-09-20 13:09:14,592 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume false; [2019-09-20 13:09:14,700 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2019-09-20 13:09:16,295 WARN L730 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-09-20 13:09:16,387 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##36: assume !false; [2019-09-20 13:09:16,388 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##35: assume false; [2019-09-20 13:09:16,477 WARN L730 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-09-20 13:09:16,692 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume false; [2019-09-20 13:09:16,692 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##22: assume !false; [2019-09-20 13:09:16,841 WARN L730 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-09-20 13:09:16,899 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2019-09-20 13:09:16,899 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2019-09-20 13:09:17,221 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:09:17,221 INFO L283 CfgBuilder]: Removed 27 assume(true) statements. [2019-09-20 13:09:17,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:09:17 BoogieIcfgContainer [2019-09-20 13:09:17,223 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:09:17,226 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:09:17,226 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:09:17,229 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:09:17,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:09:11" (1/3) ... [2019-09-20 13:09:17,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cc7db04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:09:17, skipping insertion in model container [2019-09-20 13:09:17,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:09:13" (2/3) ... [2019-09-20 13:09:17,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cc7db04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:09:17, skipping insertion in model container [2019-09-20 13:09:17,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:09:17" (3/3) ... [2019-09-20 13:09:17,235 INFO L109 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-usb-misc-iowarrior.ko.cil.out.i [2019-09-20 13:09:17,246 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:09:17,255 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:09:17,268 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:09:17,302 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-20 13:09:17,303 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:09:17,303 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-20 13:09:17,303 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:09:17,303 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:09:17,303 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:09:17,303 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:09:17,303 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:09:17,304 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:09:17,345 INFO L276 IsEmpty]: Start isEmpty. Operand 820 states. [2019-09-20 13:09:17,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-09-20 13:09:17,352 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:09:17,353 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 13:09:17,359 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:09:17,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:09:17,365 INFO L82 PathProgramCache]: Analyzing trace with hash 39899685, now seen corresponding path program 1 times [2019-09-20 13:09:17,367 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:09:17,371 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:09:17,469 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:09:17,470 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:09:17,470 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:09:17,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:09:18,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:09:18,049 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:09:18,049 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:09:18,054 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:09:18,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:09:18,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:09:18,072 INFO L87 Difference]: Start difference. First operand 820 states. Second operand 3 states. [2019-09-20 13:09:18,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:09:18,301 INFO L93 Difference]: Finished difference Result 2255 states and 3176 transitions. [2019-09-20 13:09:18,301 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:09:18,302 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2019-09-20 13:09:18,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:09:18,340 INFO L225 Difference]: With dead ends: 2255 [2019-09-20 13:09:18,340 INFO L226 Difference]: Without dead ends: 1491 [2019-09-20 13:09:18,354 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:09:18,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1491 states. [2019-09-20 13:09:18,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1491 to 1487. [2019-09-20 13:09:18,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1487 states. [2019-09-20 13:09:18,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1487 states to 1487 states and 1949 transitions. [2019-09-20 13:09:18,557 INFO L78 Accepts]: Start accepts. Automaton has 1487 states and 1949 transitions. Word has length 29 [2019-09-20 13:09:18,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:09:18,557 INFO L475 AbstractCegarLoop]: Abstraction has 1487 states and 1949 transitions. [2019-09-20 13:09:18,558 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:09:18,558 INFO L276 IsEmpty]: Start isEmpty. Operand 1487 states and 1949 transitions. [2019-09-20 13:09:18,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-09-20 13:09:18,559 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:09:18,559 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 13:09:18,559 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:09:18,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:09:18,560 INFO L82 PathProgramCache]: Analyzing trace with hash 1236422027, now seen corresponding path program 1 times [2019-09-20 13:09:18,560 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:09:18,560 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:09:18,569 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:09:18,569 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:09:18,569 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:09:18,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:09:18,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:09:18,762 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:09:18,762 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:09:18,763 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:09:18,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:09:18,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:09:18,765 INFO L87 Difference]: Start difference. First operand 1487 states and 1949 transitions. Second operand 3 states. [2019-09-20 13:09:18,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:09:18,929 INFO L93 Difference]: Finished difference Result 4408 states and 5802 transitions. [2019-09-20 13:09:18,929 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:09:18,930 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2019-09-20 13:09:18,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:09:18,957 INFO L225 Difference]: With dead ends: 4408 [2019-09-20 13:09:18,957 INFO L226 Difference]: Without dead ends: 2936 [2019-09-20 13:09:18,965 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:09:18,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2936 states. [2019-09-20 13:09:19,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2936 to 2929. [2019-09-20 13:09:19,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2929 states. [2019-09-20 13:09:19,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2929 states to 2929 states and 3851 transitions. [2019-09-20 13:09:19,121 INFO L78 Accepts]: Start accepts. Automaton has 2929 states and 3851 transitions. Word has length 30 [2019-09-20 13:09:19,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:09:19,121 INFO L475 AbstractCegarLoop]: Abstraction has 2929 states and 3851 transitions. [2019-09-20 13:09:19,121 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:09:19,121 INFO L276 IsEmpty]: Start isEmpty. Operand 2929 states and 3851 transitions. [2019-09-20 13:09:19,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-09-20 13:09:19,136 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:09:19,137 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 13:09:19,137 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:09:19,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:09:19,137 INFO L82 PathProgramCache]: Analyzing trace with hash -442223347, now seen corresponding path program 1 times [2019-09-20 13:09:19,138 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:09:19,138 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:09:19,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:09:19,148 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:09:19,148 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:09:19,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:09:19,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:09:19,426 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:09:19,426 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:09:19,427 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:09:19,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:09:19,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:09:19,428 INFO L87 Difference]: Start difference. First operand 2929 states and 3851 transitions. Second operand 3 states. [2019-09-20 13:09:19,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:09:19,591 INFO L93 Difference]: Finished difference Result 5967 states and 7911 transitions. [2019-09-20 13:09:19,592 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:09:19,592 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2019-09-20 13:09:19,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:09:19,613 INFO L225 Difference]: With dead ends: 5967 [2019-09-20 13:09:19,613 INFO L226 Difference]: Without dead ends: 3063 [2019-09-20 13:09:19,624 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:09:19,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3063 states. [2019-09-20 13:09:19,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3063 to 3057. [2019-09-20 13:09:19,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3057 states. [2019-09-20 13:09:19,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3057 states to 3057 states and 4056 transitions. [2019-09-20 13:09:19,762 INFO L78 Accepts]: Start accepts. Automaton has 3057 states and 4056 transitions. Word has length 70 [2019-09-20 13:09:19,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:09:19,763 INFO L475 AbstractCegarLoop]: Abstraction has 3057 states and 4056 transitions. [2019-09-20 13:09:19,763 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:09:19,763 INFO L276 IsEmpty]: Start isEmpty. Operand 3057 states and 4056 transitions. [2019-09-20 13:09:19,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-09-20 13:09:19,767 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:09:19,767 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 13:09:19,767 INFO L418 AbstractCegarLoop]: === Iteration 4 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:09:19,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:09:19,768 INFO L82 PathProgramCache]: Analyzing trace with hash 40263783, now seen corresponding path program 1 times [2019-09-20 13:09:19,768 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:09:19,768 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:09:19,779 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:09:19,780 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:09:19,780 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:09:19,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:09:19,982 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 13:09:19,982 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:09:19,983 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:09:19,983 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:09:19,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:09:19,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:09:19,984 INFO L87 Difference]: Start difference. First operand 3057 states and 4056 transitions. Second operand 3 states. [2019-09-20 13:09:20,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:09:20,128 INFO L93 Difference]: Finished difference Result 6363 states and 8543 transitions. [2019-09-20 13:09:20,128 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:09:20,132 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 108 [2019-09-20 13:09:20,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:09:20,158 INFO L225 Difference]: With dead ends: 6363 [2019-09-20 13:09:20,158 INFO L226 Difference]: Without dead ends: 3329 [2019-09-20 13:09:20,171 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:09:20,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3329 states. [2019-09-20 13:09:20,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3329 to 3323. [2019-09-20 13:09:20,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3323 states. [2019-09-20 13:09:20,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3323 states to 3323 states and 4480 transitions. [2019-09-20 13:09:20,357 INFO L78 Accepts]: Start accepts. Automaton has 3323 states and 4480 transitions. Word has length 108 [2019-09-20 13:09:20,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:09:20,358 INFO L475 AbstractCegarLoop]: Abstraction has 3323 states and 4480 transitions. [2019-09-20 13:09:20,358 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:09:20,358 INFO L276 IsEmpty]: Start isEmpty. Operand 3323 states and 4480 transitions. [2019-09-20 13:09:20,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2019-09-20 13:09:20,364 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:09:20,365 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 13:09:20,365 INFO L418 AbstractCegarLoop]: === Iteration 5 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:09:20,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:09:20,365 INFO L82 PathProgramCache]: Analyzing trace with hash -1726277143, now seen corresponding path program 1 times [2019-09-20 13:09:20,365 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:09:20,366 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:09:20,376 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:09:20,376 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:09:20,377 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:09:20,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:09:20,676 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 13:09:20,677 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:09:20,677 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:09:20,678 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:09:20,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:09:20,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:09:20,678 INFO L87 Difference]: Start difference. First operand 3323 states and 4480 transitions. Second operand 6 states. [2019-09-20 13:09:28,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:09:28,476 INFO L93 Difference]: Finished difference Result 9905 states and 13744 transitions. [2019-09-20 13:09:28,476 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-20 13:09:28,476 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 114 [2019-09-20 13:09:28,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:09:28,524 INFO L225 Difference]: With dead ends: 9905 [2019-09-20 13:09:28,525 INFO L226 Difference]: Without dead ends: 6607 [2019-09-20 13:09:28,542 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 13:09:28,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6607 states. [2019-09-20 13:09:28,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6607 to 5855. [2019-09-20 13:09:28,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5855 states. [2019-09-20 13:09:28,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5855 states to 5855 states and 8029 transitions. [2019-09-20 13:09:28,842 INFO L78 Accepts]: Start accepts. Automaton has 5855 states and 8029 transitions. Word has length 114 [2019-09-20 13:09:28,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:09:28,843 INFO L475 AbstractCegarLoop]: Abstraction has 5855 states and 8029 transitions. [2019-09-20 13:09:28,843 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:09:28,843 INFO L276 IsEmpty]: Start isEmpty. Operand 5855 states and 8029 transitions. [2019-09-20 13:09:28,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2019-09-20 13:09:28,853 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:09:28,853 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 13:09:28,853 INFO L418 AbstractCegarLoop]: === Iteration 6 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:09:28,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:09:28,854 INFO L82 PathProgramCache]: Analyzing trace with hash -1486037397, now seen corresponding path program 1 times [2019-09-20 13:09:28,854 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:09:28,854 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:09:28,861 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:09:28,862 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:09:28,862 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:09:28,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:09:29,097 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 13:09:29,099 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:09:29,100 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 13:09:29,100 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:09:29,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:09:29,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:09:29,101 INFO L87 Difference]: Start difference. First operand 5855 states and 8029 transitions. Second operand 5 states. [2019-09-20 13:09:31,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:09:31,164 INFO L93 Difference]: Finished difference Result 11781 states and 16149 transitions. [2019-09-20 13:09:31,165 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:09:31,165 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 114 [2019-09-20 13:09:31,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:09:31,203 INFO L225 Difference]: With dead ends: 11781 [2019-09-20 13:09:31,203 INFO L226 Difference]: Without dead ends: 5951 [2019-09-20 13:09:31,229 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 13:09:31,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5951 states. [2019-09-20 13:09:31,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5951 to 5855. [2019-09-20 13:09:31,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5855 states. [2019-09-20 13:09:31,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5855 states to 5855 states and 8025 transitions. [2019-09-20 13:09:31,462 INFO L78 Accepts]: Start accepts. Automaton has 5855 states and 8025 transitions. Word has length 114 [2019-09-20 13:09:31,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:09:31,463 INFO L475 AbstractCegarLoop]: Abstraction has 5855 states and 8025 transitions. [2019-09-20 13:09:31,463 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:09:31,463 INFO L276 IsEmpty]: Start isEmpty. Operand 5855 states and 8025 transitions. [2019-09-20 13:09:31,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2019-09-20 13:09:31,467 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:09:31,468 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 13:09:31,468 INFO L418 AbstractCegarLoop]: === Iteration 7 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:09:31,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:09:31,468 INFO L82 PathProgramCache]: Analyzing trace with hash -784437523, now seen corresponding path program 1 times [2019-09-20 13:09:31,468 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:09:31,468 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:09:31,475 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:09:31,475 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:09:31,475 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:09:31,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:09:31,644 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 13:09:31,644 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:09:31,644 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 13:09:31,645 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:09:31,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:09:31,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:09:31,646 INFO L87 Difference]: Start difference. First operand 5855 states and 8025 transitions. Second operand 5 states. [2019-09-20 13:09:32,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:09:32,299 INFO L93 Difference]: Finished difference Result 11805 states and 16181 transitions. [2019-09-20 13:09:32,299 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-20 13:09:32,299 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 114 [2019-09-20 13:09:32,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:09:32,426 INFO L225 Difference]: With dead ends: 11805 [2019-09-20 13:09:32,426 INFO L226 Difference]: Without dead ends: 5943 [2019-09-20 13:09:32,450 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:09:32,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5943 states. [2019-09-20 13:09:32,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5943 to 5875. [2019-09-20 13:09:32,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5875 states. [2019-09-20 13:09:32,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5875 states to 5875 states and 8047 transitions. [2019-09-20 13:09:32,684 INFO L78 Accepts]: Start accepts. Automaton has 5875 states and 8047 transitions. Word has length 114 [2019-09-20 13:09:32,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:09:32,684 INFO L475 AbstractCegarLoop]: Abstraction has 5875 states and 8047 transitions. [2019-09-20 13:09:32,684 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:09:32,684 INFO L276 IsEmpty]: Start isEmpty. Operand 5875 states and 8047 transitions. [2019-09-20 13:09:32,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-09-20 13:09:32,690 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:09:32,690 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 13:09:32,690 INFO L418 AbstractCegarLoop]: === Iteration 8 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:09:32,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:09:32,691 INFO L82 PathProgramCache]: Analyzing trace with hash 1778223152, now seen corresponding path program 1 times [2019-09-20 13:09:32,691 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:09:32,691 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:09:32,698 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:09:32,698 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:09:32,700 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:09:35,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:09:35,779 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 13:09:35,780 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:09:35,780 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-09-20 13:09:35,782 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-09-20 13:09:35,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-09-20 13:09:35,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-09-20 13:09:35,784 INFO L87 Difference]: Start difference. First operand 5875 states and 8047 transitions. Second operand 11 states. [2019-09-20 13:09:40,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:09:40,816 INFO L93 Difference]: Finished difference Result 11793 states and 16183 transitions. [2019-09-20 13:09:40,817 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-09-20 13:09:40,817 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 150 [2019-09-20 13:09:40,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:09:40,916 INFO L225 Difference]: With dead ends: 11793 [2019-09-20 13:09:40,917 INFO L226 Difference]: Without dead ends: 5895 [2019-09-20 13:09:40,943 INFO L636 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 [2019-09-20 13:09:40,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5895 states. [2019-09-20 13:09:41,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5895 to 5887. [2019-09-20 13:09:41,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5887 states. [2019-09-20 13:09:41,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5887 states to 5887 states and 8061 transitions. [2019-09-20 13:09:41,217 INFO L78 Accepts]: Start accepts. Automaton has 5887 states and 8061 transitions. Word has length 150 [2019-09-20 13:09:41,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:09:41,219 INFO L475 AbstractCegarLoop]: Abstraction has 5887 states and 8061 transitions. [2019-09-20 13:09:41,219 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-09-20 13:09:41,219 INFO L276 IsEmpty]: Start isEmpty. Operand 5887 states and 8061 transitions. [2019-09-20 13:09:41,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-09-20 13:09:41,225 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:09:41,225 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 13:09:41,225 INFO L418 AbstractCegarLoop]: === Iteration 9 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:09:41,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:09:41,226 INFO L82 PathProgramCache]: Analyzing trace with hash 1711216399, now seen corresponding path program 1 times [2019-09-20 13:09:41,226 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:09:41,226 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:09:41,233 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:09:41,233 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:09:41,233 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:09:41,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:09:41,473 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 13:09:41,473 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:09:41,473 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:09:41,473 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:09:41,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:09:41,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:09:41,474 INFO L87 Difference]: Start difference. First operand 5887 states and 8061 transitions. Second operand 6 states.