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 --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-usb-misc-iowarrior.ko.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 02:10:31,220 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 02:10:31,222 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 02:10:31,243 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 02:10:31,243 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 02:10:31,245 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 02:10:31,247 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 02:10:31,260 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 02:10:31,263 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 02:10:31,264 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 02:10:31,266 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 02:10:31,267 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 02:10:31,267 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 02:10:31,271 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 02:10:31,274 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 02:10:31,276 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 02:10:31,277 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 02:10:31,280 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 02:10:31,282 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 02:10:31,288 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 02:10:31,292 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 02:10:31,294 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 02:10:31,297 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 02:10:31,298 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 02:10:31,301 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 02:10:31,301 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 02:10:31,301 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 02:10:31,303 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 02:10:31,305 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 02:10:31,306 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 02:10:31,307 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 02:10:31,307 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 02:10:31,308 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 02:10:31,309 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 02:10:31,311 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 02:10:31,311 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 02:10:31,312 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 02:10:31,312 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 02:10:31,312 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 02:10:31,314 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 02:10:31,316 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 02:10:31,317 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 02:10:31,335 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 02:10:31,336 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 02:10:31,338 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 02:10:31,338 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 02:10:31,338 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 02:10:31,338 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 02:10:31,339 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 02:10:31,339 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 02:10:31,339 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 02:10:31,339 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 02:10:31,340 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 02:10:31,341 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 02:10:31,341 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 02:10:31,341 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 02:10:31,341 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 02:10:31,342 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 02:10:31,342 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 02:10:31,342 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 02:10:31,342 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 02:10:31,342 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 02:10:31,343 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 02:10:31,343 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 02:10:31,343 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 02:10:31,343 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 02:10:31,344 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 02:10:31,344 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 02:10:31,344 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 02:10:31,344 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 02:10:31,344 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-15 02:10:31,657 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 02:10:31,672 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 02:10:31,676 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 02:10:31,678 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 02:10:31,678 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 02:10:31,679 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-usb-misc-iowarrior.ko.cil.out.i [2019-10-15 02:10:31,768 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed81875ba/1da21a8ed377450786eb90f9b5f1e5f1/FLAG885683145 [2019-10-15 02:10:32,596 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 02:10:32,600 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-usb-misc-iowarrior.ko.cil.out.i [2019-10-15 02:10:32,640 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed81875ba/1da21a8ed377450786eb90f9b5f1e5f1/FLAG885683145 [2019-10-15 02:10:32,689 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed81875ba/1da21a8ed377450786eb90f9b5f1e5f1 [2019-10-15 02:10:32,700 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 02:10:32,701 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 02:10:32,702 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 02:10:32,703 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 02:10:32,706 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 02:10:32,707 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:10:32" (1/1) ... [2019-10-15 02:10:32,710 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d1dcc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:10:32, skipping insertion in model container [2019-10-15 02:10:32,710 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:10:32" (1/1) ... [2019-10-15 02:10:32,716 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 02:10:32,821 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 02:10:34,164 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 02:10:34,254 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 02:10:34,495 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 02:10:34,671 INFO L192 MainTranslator]: Completed translation [2019-10-15 02:10:34,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:10:34 WrapperNode [2019-10-15 02:10:34,672 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 02:10:34,673 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 02:10:34,673 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 02:10:34,673 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 02:10:34,690 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:10:34" (1/1) ... [2019-10-15 02:10:34,691 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:10:34" (1/1) ... [2019-10-15 02:10:34,740 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:10:34" (1/1) ... [2019-10-15 02:10:34,741 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:10:34" (1/1) ... [2019-10-15 02:10:34,848 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:10:34" (1/1) ... [2019-10-15 02:10:34,881 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:10:34" (1/1) ... [2019-10-15 02:10:34,899 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:10:34" (1/1) ... [2019-10-15 02:10:34,919 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 02:10:34,920 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 02:10:34,920 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 02:10:34,921 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 02:10:34,922 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:10:34" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 02:10:35,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 02:10:35,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 02:10:35,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2019-10-15 02:10:35,017 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2019-10-15 02:10:35,017 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2019-10-15 02:10:35,018 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2019-10-15 02:10:35,018 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2019-10-15 02:10:35,018 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2019-10-15 02:10:35,018 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2019-10-15 02:10:35,018 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2019-10-15 02:10:35,019 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-10-15 02:10:35,019 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2019-10-15 02:10:35,019 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2019-10-15 02:10:35,019 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_name [2019-10-15 02:10:35,019 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2019-10-15 02:10:35,020 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2019-10-15 02:10:35,020 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2019-10-15 02:10:35,020 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2019-10-15 02:10:35,020 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_out [2019-10-15 02:10:35,025 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2019-10-15 02:10:35,026 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-10-15 02:10:35,026 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2019-10-15 02:10:35,026 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2019-10-15 02:10:35,026 INFO L138 BoogieDeclarations]: Found implementation of procedure test_tsk_thread_flag [2019-10-15 02:10:35,026 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2019-10-15 02:10:35,027 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2019-10-15 02:10:35,027 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2019-10-15 02:10:35,027 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2019-10-15 02:10:35,027 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register [2019-10-15 02:10:35,027 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2019-10-15 02:10:35,027 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2019-10-15 02:10:35,027 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-15 02:10:35,028 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-15 02:10:35,028 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2019-10-15 02:10:35,028 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_report [2019-10-15 02:10:35,028 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_report [2019-10-15 02:10:35,028 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_callback [2019-10-15 02:10:35,028 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_write_callback [2019-10-15 02:10:35,029 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_delete [2019-10-15 02:10:35,029 INFO L138 BoogieDeclarations]: Found implementation of procedure read_index [2019-10-15 02:10:35,029 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_read [2019-10-15 02:10:35,029 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_write [2019-10-15 02:10:35,029 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_ioctl [2019-10-15 02:10:35,029 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_open [2019-10-15 02:10:35,029 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_release [2019-10-15 02:10:35,030 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_poll [2019-10-15 02:10:35,030 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_devnode [2019-10-15 02:10:35,030 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_probe [2019-10-15 02:10:35,030 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_disconnect [2019-10-15 02:10:35,030 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_init [2019-10-15 02:10:35,030 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_exit [2019-10-15 02:10:35,030 INFO L138 BoogieDeclarations]: Found implementation of procedure init_module [2019-10-15 02:10:35,030 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup_module [2019-10-15 02:10:35,031 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 02:10:35,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2019-10-15 02:10:35,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2019-10-15 02:10:35,031 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2019-10-15 02:10:35,031 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2019-10-15 02:10:35,032 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2019-10-15 02:10:35,033 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2019-10-15 02:10:35,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-15 02:10:35,034 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-10-15 02:10:35,034 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-15 02:10:35,034 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2019-10-15 02:10:35,034 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-10-15 02:10:35,035 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2019-10-15 02:10:35,035 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2019-10-15 02:10:35,035 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-10-15 02:10:35,036 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2019-10-15 02:10:35,036 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2019-10-15 02:10:35,037 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2019-10-15 02:10:35,037 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-10-15 02:10:35,037 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-10-15 02:10:35,038 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-10-15 02:10:35,038 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2019-10-15 02:10:35,039 INFO L138 BoogieDeclarations]: Found implementation of procedure kasprintf [2019-10-15 02:10:35,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2019-10-15 02:10:35,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-15 02:10:35,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2019-10-15 02:10:35,041 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-10-15 02:10:35,042 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2019-10-15 02:10:35,042 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-15 02:10:35,043 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2019-10-15 02:10:35,043 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-15 02:10:35,043 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2019-10-15 02:10:35,043 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2019-10-15 02:10:35,044 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2019-10-15 02:10:35,045 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister_dev [2019-10-15 02:10:35,045 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_find_interface [2019-10-15 02:10:35,046 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2019-10-15 02:10:35,046 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_dev [2019-10-15 02:10:35,046 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2019-10-15 02:10:35,046 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_string [2019-10-15 02:10:35,046 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2019-10-15 02:10:35,047 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2019-10-15 02:10:35,047 INFO L138 BoogieDeclarations]: Found implementation of procedure autoremove_wake_function [2019-10-15 02:10:35,047 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-15 02:10:35,047 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-15 02:10:35,048 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-15 02:10:35,048 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-15 02:10:35,048 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 02:10:35,049 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2019-10-15 02:10:35,049 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-15 02:10:35,049 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2019-10-15 02:10:35,049 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-10-15 02:10:35,049 INFO L130 BoogieDeclarations]: Found specification of procedure kasprintf [2019-10-15 02:10:35,050 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-10-15 02:10:35,050 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2019-10-15 02:10:35,050 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-15 02:10:35,051 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-15 02:10:35,051 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2019-10-15 02:10:35,051 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2019-10-15 02:10:35,051 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2019-10-15 02:10:35,051 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 02:10:35,051 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2019-10-15 02:10:35,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 02:10:35,052 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2019-10-15 02:10:35,053 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2019-10-15 02:10:35,053 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2019-10-15 02:10:35,053 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-10-15 02:10:35,054 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2019-10-15 02:10:35,054 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2019-10-15 02:10:35,060 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-10-15 02:10:35,060 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2019-10-15 02:10:35,061 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2019-10-15 02:10:35,062 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-10-15 02:10:35,062 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2019-10-15 02:10:35,062 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2019-10-15 02:10:35,062 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2019-10-15 02:10:35,062 INFO L130 BoogieDeclarations]: Found specification of procedure autoremove_wake_function [2019-10-15 02:10:35,063 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2019-10-15 02:10:35,063 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2019-10-15 02:10:35,064 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-15 02:10:35,064 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-15 02:10:35,068 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_name [2019-10-15 02:10:35,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 02:10:35,069 INFO L130 BoogieDeclarations]: Found specification of procedure init_module [2019-10-15 02:10:35,069 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup_module [2019-10-15 02:10:35,069 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2019-10-15 02:10:35,070 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2019-10-15 02:10:35,070 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2019-10-15 02:10:35,070 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2019-10-15 02:10:35,070 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_out [2019-10-15 02:10:35,071 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-10-15 02:10:35,078 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2019-10-15 02:10:35,079 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2019-10-15 02:10:35,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 02:10:35,079 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-10-15 02:10:35,080 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2019-10-15 02:10:35,080 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-10-15 02:10:35,080 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-10-15 02:10:35,083 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-10-15 02:10:35,083 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2019-10-15 02:10:35,083 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2019-10-15 02:10:35,084 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2019-10-15 02:10:35,084 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2019-10-15 02:10:35,084 INFO L130 BoogieDeclarations]: Found specification of procedure test_tsk_thread_flag [2019-10-15 02:10:35,084 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2019-10-15 02:10:35,084 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2019-10-15 02:10:35,085 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2019-10-15 02:10:35,085 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2019-10-15 02:10:35,085 INFO L130 BoogieDeclarations]: Found specification of procedure usb_find_interface [2019-10-15 02:10:35,085 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2019-10-15 02:10:35,085 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register [2019-10-15 02:10:35,086 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2019-10-15 02:10:35,086 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_dev [2019-10-15 02:10:35,086 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister_dev [2019-10-15 02:10:35,086 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2019-10-15 02:10:35,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 02:10:35,087 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2019-10-15 02:10:35,087 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2019-10-15 02:10:35,087 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2019-10-15 02:10:35,087 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2019-10-15 02:10:35,088 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2019-10-15 02:10:35,088 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2019-10-15 02:10:35,088 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2019-10-15 02:10:35,088 INFO L130 BoogieDeclarations]: Found specification of procedure usb_string [2019-10-15 02:10:35,089 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2019-10-15 02:10:35,089 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-15 02:10:35,089 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-15 02:10:35,089 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-15 02:10:35,090 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2019-10-15 02:10:35,090 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2019-10-15 02:10:35,090 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_report [2019-10-15 02:10:35,090 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_report [2019-10-15 02:10:35,090 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_callback [2019-10-15 02:10:35,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-15 02:10:35,091 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_write_callback [2019-10-15 02:10:35,091 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_delete [2019-10-15 02:10:35,091 INFO L130 BoogieDeclarations]: Found specification of procedure read_index [2019-10-15 02:10:35,092 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_read [2019-10-15 02:10:35,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 02:10:35,092 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_write [2019-10-15 02:10:35,092 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_ioctl [2019-10-15 02:10:35,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-15 02:10:35,093 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_open [2019-10-15 02:10:35,093 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_release [2019-10-15 02:10:35,093 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_poll [2019-10-15 02:10:35,093 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_devnode [2019-10-15 02:10:35,093 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_probe [2019-10-15 02:10:35,094 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_disconnect [2019-10-15 02:10:35,094 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_init [2019-10-15 02:10:35,094 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_exit [2019-10-15 02:10:35,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-15 02:10:35,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2019-10-15 02:10:35,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-15 02:10:35,095 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 02:10:35,095 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 02:10:35,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2019-10-15 02:10:35,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2019-10-15 02:10:35,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2019-10-15 02:10:35,098 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-15 02:10:35,098 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-15 02:10:35,099 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-15 02:10:35,099 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 02:10:35,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 02:10:35,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 02:10:35,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-15 02:10:35,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 02:10:35,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-15 02:10:35,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-15 02:10:35,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-15 02:10:35,101 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-15 02:10:36,592 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-15 02:10:36,613 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2019-10-15 02:10:36,613 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2019-10-15 02:10:36,664 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-15 02:10:36,891 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume !false; [2019-10-15 02:10:36,891 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume false; [2019-10-15 02:10:36,985 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2019-10-15 02:10:38,649 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-15 02:10:38,784 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##36: assume !false; [2019-10-15 02:10:38,784 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##35: assume false; [2019-10-15 02:10:38,865 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-15 02:10:39,111 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume false; [2019-10-15 02:10:39,111 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##22: assume !false; [2019-10-15 02:10:39,241 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-15 02:10:39,316 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2019-10-15 02:10:39,317 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2019-10-15 02:10:42,029 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 02:10:42,030 INFO L284 CfgBuilder]: Removed 27 assume(true) statements. [2019-10-15 02:10:42,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:10:42 BoogieIcfgContainer [2019-10-15 02:10:42,032 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 02:10:42,033 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 02:10:42,033 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 02:10:42,036 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 02:10:42,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:10:32" (1/3) ... [2019-10-15 02:10:42,037 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2348062f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:10:42, skipping insertion in model container [2019-10-15 02:10:42,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:10:34" (2/3) ... [2019-10-15 02:10:42,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2348062f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:10:42, skipping insertion in model container [2019-10-15 02:10:42,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:10:42" (3/3) ... [2019-10-15 02:10:42,040 INFO L109 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-usb-misc-iowarrior.ko.cil.out.i [2019-10-15 02:10:42,050 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 02:10:42,060 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 02:10:42,072 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 02:10:42,102 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 02:10:42,102 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 02:10:42,102 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 02:10:42,102 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 02:10:42,102 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 02:10:42,103 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 02:10:42,103 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 02:10:42,103 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 02:10:42,136 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states. [2019-10-15 02:10:42,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-15 02:10:42,143 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:10:42,144 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:10:42,146 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:10:42,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:10:42,152 INFO L82 PathProgramCache]: Analyzing trace with hash 186770747, now seen corresponding path program 1 times [2019-10-15 02:10:42,162 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:10:42,162 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274018930] [2019-10-15 02:10:42,163 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:10:42,163 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:10:42,163 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:10:42,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:10:42,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 02:10:42,835 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274018930] [2019-10-15 02:10:42,836 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:10:42,836 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:10:42,836 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885590946] [2019-10-15 02:10:42,844 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:10:42,844 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:10:42,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:10:42,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:10:42,861 INFO L87 Difference]: Start difference. First operand 675 states. Second operand 3 states. [2019-10-15 02:10:43,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:10:43,102 INFO L93 Difference]: Finished difference Result 1772 states and 2436 transitions. [2019-10-15 02:10:43,102 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:10:43,104 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2019-10-15 02:10:43,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:10:43,132 INFO L225 Difference]: With dead ends: 1772 [2019-10-15 02:10:43,132 INFO L226 Difference]: Without dead ends: 1145 [2019-10-15 02:10:43,144 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:10:43,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1145 states. [2019-10-15 02:10:43,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1145 to 1141. [2019-10-15 02:10:43,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1141 states. [2019-10-15 02:10:43,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1141 states to 1141 states and 1508 transitions. [2019-10-15 02:10:43,324 INFO L78 Accepts]: Start accepts. Automaton has 1141 states and 1508 transitions. Word has length 25 [2019-10-15 02:10:43,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:10:43,325 INFO L462 AbstractCegarLoop]: Abstraction has 1141 states and 1508 transitions. [2019-10-15 02:10:43,325 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:10:43,325 INFO L276 IsEmpty]: Start isEmpty. Operand 1141 states and 1508 transitions. [2019-10-15 02:10:43,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-15 02:10:43,326 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:10:43,327 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:10:43,327 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:10:43,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:10:43,327 INFO L82 PathProgramCache]: Analyzing trace with hash 1494457653, now seen corresponding path program 1 times [2019-10-15 02:10:43,328 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:10:43,328 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410296442] [2019-10-15 02:10:43,328 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:10:43,328 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:10:43,328 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:10:43,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:10:43,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 02:10:43,602 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410296442] [2019-10-15 02:10:43,603 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:10:43,603 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:10:43,603 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426004166] [2019-10-15 02:10:43,605 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:10:43,605 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:10:43,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:10:43,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:10:43,606 INFO L87 Difference]: Start difference. First operand 1141 states and 1508 transitions. Second operand 3 states. [2019-10-15 02:10:43,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:10:43,702 INFO L93 Difference]: Finished difference Result 1717 states and 2271 transitions. [2019-10-15 02:10:43,703 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:10:43,703 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-10-15 02:10:43,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:10:43,722 INFO L225 Difference]: With dead ends: 1717 [2019-10-15 02:10:43,723 INFO L226 Difference]: Without dead ends: 1705 [2019-10-15 02:10:43,725 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:10:43,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1705 states. [2019-10-15 02:10:43,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1705 to 1700. [2019-10-15 02:10:43,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1700 states. [2019-10-15 02:10:43,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1700 states to 1700 states and 2251 transitions. [2019-10-15 02:10:43,905 INFO L78 Accepts]: Start accepts. Automaton has 1700 states and 2251 transitions. Word has length 26 [2019-10-15 02:10:43,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:10:43,905 INFO L462 AbstractCegarLoop]: Abstraction has 1700 states and 2251 transitions. [2019-10-15 02:10:43,905 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:10:43,906 INFO L276 IsEmpty]: Start isEmpty. Operand 1700 states and 2251 transitions. [2019-10-15 02:10:43,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-10-15 02:10:43,911 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:10:43,911 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:10:43,911 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:10:43,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:10:43,911 INFO L82 PathProgramCache]: Analyzing trace with hash 1487356867, now seen corresponding path program 1 times [2019-10-15 02:10:43,912 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:10:43,912 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660811222] [2019-10-15 02:10:43,912 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:10:43,912 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:10:43,912 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:10:43,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:10:44,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 02:10:44,132 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660811222] [2019-10-15 02:10:44,133 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:10:44,133 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:10:44,133 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554091804] [2019-10-15 02:10:44,134 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:10:44,134 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:10:44,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:10:44,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:10:44,135 INFO L87 Difference]: Start difference. First operand 1700 states and 2251 transitions. Second operand 3 states. [2019-10-15 02:10:44,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:10:44,245 INFO L93 Difference]: Finished difference Result 3476 states and 4652 transitions. [2019-10-15 02:10:44,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:10:44,245 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 55 [2019-10-15 02:10:44,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:10:44,258 INFO L225 Difference]: With dead ends: 3476 [2019-10-15 02:10:44,258 INFO L226 Difference]: Without dead ends: 1797 [2019-10-15 02:10:44,265 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:10:44,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1797 states. [2019-10-15 02:10:44,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1797 to 1793. [2019-10-15 02:10:44,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1793 states. [2019-10-15 02:10:44,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1793 states to 1793 states and 2401 transitions. [2019-10-15 02:10:44,363 INFO L78 Accepts]: Start accepts. Automaton has 1793 states and 2401 transitions. Word has length 55 [2019-10-15 02:10:44,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:10:44,364 INFO L462 AbstractCegarLoop]: Abstraction has 1793 states and 2401 transitions. [2019-10-15 02:10:44,364 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:10:44,364 INFO L276 IsEmpty]: Start isEmpty. Operand 1793 states and 2401 transitions. [2019-10-15 02:10:44,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-10-15 02:10:44,382 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:10:44,383 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:10:44,383 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:10:44,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:10:44,383 INFO L82 PathProgramCache]: Analyzing trace with hash 1569605503, now seen corresponding path program 1 times [2019-10-15 02:10:44,383 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:10:44,384 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400404480] [2019-10-15 02:10:44,384 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:10:44,385 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:10:44,385 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:10:44,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:10:44,607 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-15 02:10:44,607 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400404480] [2019-10-15 02:10:44,608 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:10:44,608 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:10:44,608 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555169675] [2019-10-15 02:10:44,609 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:10:44,609 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:10:44,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:10:44,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:10:44,610 INFO L87 Difference]: Start difference. First operand 1793 states and 2401 transitions. Second operand 3 states. [2019-10-15 02:10:44,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:10:44,728 INFO L93 Difference]: Finished difference Result 3764 states and 5115 transitions. [2019-10-15 02:10:44,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:10:44,730 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 88 [2019-10-15 02:10:44,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:10:44,744 INFO L225 Difference]: With dead ends: 3764 [2019-10-15 02:10:44,745 INFO L226 Difference]: Without dead ends: 1990 [2019-10-15 02:10:44,753 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:10:44,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1990 states. [2019-10-15 02:10:44,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1990 to 1986. [2019-10-15 02:10:44,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1986 states. [2019-10-15 02:10:44,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1986 states to 1986 states and 2711 transitions. [2019-10-15 02:10:44,951 INFO L78 Accepts]: Start accepts. Automaton has 1986 states and 2711 transitions. Word has length 88 [2019-10-15 02:10:44,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:10:44,953 INFO L462 AbstractCegarLoop]: Abstraction has 1986 states and 2711 transitions. [2019-10-15 02:10:44,953 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:10:44,953 INFO L276 IsEmpty]: Start isEmpty. Operand 1986 states and 2711 transitions. [2019-10-15 02:10:44,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-10-15 02:10:44,958 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:10:44,958 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 02:10:44,958 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:10:44,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:10:44,959 INFO L82 PathProgramCache]: Analyzing trace with hash 181883480, now seen corresponding path program 1 times [2019-10-15 02:10:44,959 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:10:44,959 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091974287] [2019-10-15 02:10:44,959 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:10:44,960 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:10:44,960 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:10:45,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:10:45,150 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-15 02:10:45,150 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091974287] [2019-10-15 02:10:45,150 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:10:45,150 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 02:10:45,151 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490920710] [2019-10-15 02:10:45,151 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 02:10:45,151 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:10:45,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 02:10:45,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 02:10:45,152 INFO L87 Difference]: Start difference. First operand 1986 states and 2711 transitions. Second operand 5 states. [2019-10-15 02:10:45,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:10:45,766 INFO L93 Difference]: Finished difference Result 4002 states and 5462 transitions. [2019-10-15 02:10:45,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 02:10:45,767 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 89 [2019-10-15 02:10:45,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:10:45,784 INFO L225 Difference]: With dead ends: 4002 [2019-10-15 02:10:45,785 INFO L226 Difference]: Without dead ends: 2022 [2019-10-15 02:10:45,795 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 02:10:45,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2022 states. [2019-10-15 02:10:45,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2022 to 1995. [2019-10-15 02:10:45,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1995 states. [2019-10-15 02:10:45,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1995 states to 1995 states and 2717 transitions. [2019-10-15 02:10:45,895 INFO L78 Accepts]: Start accepts. Automaton has 1995 states and 2717 transitions. Word has length 89 [2019-10-15 02:10:45,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:10:45,895 INFO L462 AbstractCegarLoop]: Abstraction has 1995 states and 2717 transitions. [2019-10-15 02:10:45,896 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 02:10:45,896 INFO L276 IsEmpty]: Start isEmpty. Operand 1995 states and 2717 transitions. [2019-10-15 02:10:45,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2019-10-15 02:10:45,903 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:10:45,904 INFO L380 BasicCegarLoop]: trace histogram [4, 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] [2019-10-15 02:10:45,904 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:10:45,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:10:45,904 INFO L82 PathProgramCache]: Analyzing trace with hash 2067221444, now seen corresponding path program 1 times [2019-10-15 02:10:45,905 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:10:45,905 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437892256] [2019-10-15 02:10:45,905 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:10:45,905 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:10:45,905 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:10:46,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:10:46,772 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 02:10:46,772 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437892256] [2019-10-15 02:10:46,773 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:10:46,773 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-15 02:10:46,773 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689779527] [2019-10-15 02:10:46,775 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 02:10:46,775 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:10:46,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 02:10:46,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-15 02:10:46,776 INFO L87 Difference]: Start difference. First operand 1995 states and 2717 transitions. Second operand 9 states. [2019-10-15 02:10:52,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:10:52,057 INFO L93 Difference]: Finished difference Result 3394 states and 4634 transitions. [2019-10-15 02:10:52,058 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-15 02:10:52,058 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 121 [2019-10-15 02:10:52,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:10:52,072 INFO L225 Difference]: With dead ends: 3394 [2019-10-15 02:10:52,073 INFO L226 Difference]: Without dead ends: 1999 [2019-10-15 02:10:52,080 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2019-10-15 02:10:52,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1999 states. [2019-10-15 02:10:52,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1999 to 1995. [2019-10-15 02:10:52,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1995 states. [2019-10-15 02:10:52,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1995 states to 1995 states and 2715 transitions. [2019-10-15 02:10:52,165 INFO L78 Accepts]: Start accepts. Automaton has 1995 states and 2715 transitions. Word has length 121 [2019-10-15 02:10:52,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:10:52,166 INFO L462 AbstractCegarLoop]: Abstraction has 1995 states and 2715 transitions. [2019-10-15 02:10:52,166 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 02:10:52,166 INFO L276 IsEmpty]: Start isEmpty. Operand 1995 states and 2715 transitions. [2019-10-15 02:10:52,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2019-10-15 02:10:52,169 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:10:52,170 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:10:52,170 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:10:52,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:10:52,170 INFO L82 PathProgramCache]: Analyzing trace with hash 202455682, now seen corresponding path program 1 times [2019-10-15 02:10:52,171 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:10:52,171 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980414400] [2019-10-15 02:10:52,171 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:10:52,171 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:10:52,171 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:10:52,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:10:52,342 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-15 02:10:52,343 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980414400] [2019-10-15 02:10:52,343 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:10:52,343 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 02:10:52,348 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987095310] [2019-10-15 02:10:52,349 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 02:10:52,350 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:10:52,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 02:10:52,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 02:10:52,351 INFO L87 Difference]: Start difference. First operand 1995 states and 2715 transitions. Second operand 6 states. [2019-10-15 02:10:53,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:10:53,061 INFO L93 Difference]: Finished difference Result 4029 states and 5485 transitions. [2019-10-15 02:10:53,061 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 02:10:53,061 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 116 [2019-10-15 02:10:53,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:10:53,074 INFO L225 Difference]: With dead ends: 4029 [2019-10-15 02:10:53,075 INFO L226 Difference]: Without dead ends: 2042 [2019-10-15 02:10:53,083 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-15 02:10:53,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2042 states. [2019-10-15 02:10:53,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2042 to 2001. [2019-10-15 02:10:53,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2001 states. [2019-10-15 02:10:53,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2001 states to 2001 states and 2724 transitions. [2019-10-15 02:10:53,170 INFO L78 Accepts]: Start accepts. Automaton has 2001 states and 2724 transitions. Word has length 116 [2019-10-15 02:10:53,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:10:53,171 INFO L462 AbstractCegarLoop]: Abstraction has 2001 states and 2724 transitions. [2019-10-15 02:10:53,171 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 02:10:53,172 INFO L276 IsEmpty]: Start isEmpty. Operand 2001 states and 2724 transitions. [2019-10-15 02:10:53,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2019-10-15 02:10:53,176 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:10:53,177 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 02:10:53,177 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:10:53,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:10:53,177 INFO L82 PathProgramCache]: Analyzing trace with hash -2088924115, now seen corresponding path program 1 times [2019-10-15 02:10:53,178 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:10:53,178 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168734085] [2019-10-15 02:10:53,178 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:10:53,179 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:10:53,179 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:10:53,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:10:53,687 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 02:10:53,687 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168734085] [2019-10-15 02:10:53,687 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:10:53,687 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 02:10:53,688 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989746432] [2019-10-15 02:10:53,689 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 02:10:53,689 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:10:53,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 02:10:53,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 02:10:53,691 INFO L87 Difference]: Start difference. First operand 2001 states and 2724 transitions. Second operand 6 states. [2019-10-15 02:10:54,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:10:54,316 INFO L93 Difference]: Finished difference Result 3931 states and 5333 transitions. [2019-10-15 02:10:54,316 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 02:10:54,316 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 130 [2019-10-15 02:10:54,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:10:54,330 INFO L225 Difference]: With dead ends: 3931 [2019-10-15 02:10:54,330 INFO L226 Difference]: Without dead ends: 1941 [2019-10-15 02:10:54,340 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-15 02:10:54,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1941 states. [2019-10-15 02:10:54,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1941 to 1914. [2019-10-15 02:10:54,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1914 states. [2019-10-15 02:10:54,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1914 states to 1914 states and 2584 transitions. [2019-10-15 02:10:54,420 INFO L78 Accepts]: Start accepts. Automaton has 1914 states and 2584 transitions. Word has length 130 [2019-10-15 02:10:54,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:10:54,420 INFO L462 AbstractCegarLoop]: Abstraction has 1914 states and 2584 transitions. [2019-10-15 02:10:54,421 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 02:10:54,421 INFO L276 IsEmpty]: Start isEmpty. Operand 1914 states and 2584 transitions. [2019-10-15 02:10:54,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2019-10-15 02:10:54,423 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:10:54,423 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:10:54,424 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:10:54,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:10:54,424 INFO L82 PathProgramCache]: Analyzing trace with hash -1105399362, now seen corresponding path program 1 times [2019-10-15 02:10:54,424 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:10:54,425 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141941543] [2019-10-15 02:10:54,425 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:10:54,425 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:10:54,425 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:10:54,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:10:54,600 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-15 02:10:54,600 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141941543] [2019-10-15 02:10:54,601 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [730248108] [2019-10-15 02:10:54,601 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 02:10:55,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:10:55,326 INFO L256 TraceCheckSpWp]: Trace formula consists of 2139 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-15 02:10:55,340 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 02:10:55,481 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 02:10:55,481 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 02:10:55,647 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-15 02:10:55,647 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1523487452] [2019-10-15 02:10:55,695 INFO L162 IcfgInterpreter]: Started Sifa with 103 locations of interest [2019-10-15 02:10:55,695 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 02:10:55,703 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 02:10:55,721 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 02:10:55,722 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs