java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/ldv-commit-tester/m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 09:41:20,185 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 09:41:20,188 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 09:41:20,203 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 09:41:20,204 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 09:41:20,205 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 09:41:20,206 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 09:41:20,210 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 09:41:20,213 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 09:41:20,214 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 09:41:20,220 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 09:41:20,221 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 09:41:20,222 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 09:41:20,222 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 09:41:20,223 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 09:41:20,225 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 09:41:20,225 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 09:41:20,226 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 09:41:20,228 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 09:41:20,230 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 09:41:20,231 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 09:41:20,232 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 09:41:20,233 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 09:41:20,234 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 09:41:20,236 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 09:41:20,236 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 09:41:20,236 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 09:41:20,237 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 09:41:20,237 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 09:41:20,238 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 09:41:20,238 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 09:41:20,239 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 09:41:20,240 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 09:41:20,241 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 09:41:20,242 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 09:41:20,242 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 09:41:20,242 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 09:41:20,243 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 09:41:20,243 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 09:41:20,244 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 09:41:20,244 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 09:41:20,245 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-10 09:41:20,267 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 09:41:20,267 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 09:41:20,268 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 09:41:20,268 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 09:41:20,269 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 09:41:20,269 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 09:41:20,270 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 09:41:20,270 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 09:41:20,270 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 09:41:20,270 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 09:41:20,271 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 09:41:20,271 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 09:41:20,271 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 09:41:20,271 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 09:41:20,272 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 09:41:20,272 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 09:41:20,273 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 09:41:20,273 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 09:41:20,273 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 09:41:20,274 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 09:41:20,274 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 09:41:20,274 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 09:41:20,275 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 09:41:20,275 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 09:41:20,275 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 09:41:20,275 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 09:41:20,276 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 09:41:20,276 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 09:41:20,276 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 09:41:20,276 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 09:41:20,318 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 09:41:20,335 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 09:41:20,338 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 09:41:20,340 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 09:41:20,340 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 09:41:20,341 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-commit-tester/m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-2.i [2019-09-10 09:41:20,403 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4a8206d2/01a729aa33b84a569008a8feed0e8de1/FLAG129116218 [2019-09-10 09:41:21,170 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 09:41:21,172 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-commit-tester/m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-2.i [2019-09-10 09:41:21,201 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4a8206d2/01a729aa33b84a569008a8feed0e8de1/FLAG129116218 [2019-09-10 09:41:21,711 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4a8206d2/01a729aa33b84a569008a8feed0e8de1 [2019-09-10 09:41:21,721 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 09:41:21,722 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 09:41:21,723 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 09:41:21,723 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 09:41:21,727 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 09:41:21,727 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 09:41:21" (1/1) ... [2019-09-10 09:41:21,730 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a74fae0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 09:41:21, skipping insertion in model container [2019-09-10 09:41:21,731 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 09:41:21" (1/1) ... [2019-09-10 09:41:21,737 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 09:41:21,857 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 09:41:23,338 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 09:41:23,426 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 09:41:23,712 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 09:41:24,041 INFO L192 MainTranslator]: Completed translation [2019-09-10 09:41:24,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 09:41:24 WrapperNode [2019-09-10 09:41:24,042 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 09:41:24,042 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 09:41:24,043 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 09:41:24,043 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 09:41:24,057 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 09:41:24" (1/1) ... [2019-09-10 09:41:24,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 09:41:24" (1/1) ... [2019-09-10 09:41:24,122 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 09:41:24" (1/1) ... [2019-09-10 09:41:24,122 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 09:41:24" (1/1) ... [2019-09-10 09:41:24,256 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 09:41:24" (1/1) ... [2019-09-10 09:41:24,286 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 09:41:24" (1/1) ... [2019-09-10 09:41:24,319 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 09:41:24" (1/1) ... [2019-09-10 09:41:24,341 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 09:41:24,342 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 09:41:24,342 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 09:41:24,342 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 09:41:24,344 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 09:41:24" (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 [2019-09-10 09:41:24,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 09:41:24,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 09:41:24,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~int~X~~gfp_t~0~TO~VOID [2019-09-10 09:41:24,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2019-09-10 09:41:24,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-09-10 09:41:24,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2019-09-10 09:41:24,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~gfp_t~0~TO~$Pointer$ [2019-09-10 09:41:24,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2019-09-10 09:41:24,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~gfp_t~0~TO~int [2019-09-10 09:41:24,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2019-09-10 09:41:24,417 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2019-09-10 09:41:24,419 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2019-09-10 09:41:24,419 INFO L138 BoogieDeclarations]: Found implementation of procedure get_order [2019-09-10 09:41:24,422 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2019-09-10 09:41:24,422 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2019-09-10 09:41:24,424 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2019-09-10 09:41:24,425 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del [2019-09-10 09:41:24,425 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2019-09-10 09:41:24,425 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2019-09-10 09:41:24,426 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2019-09-10 09:41:24,426 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-09-10 09:41:24,426 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2019-09-10 09:41:24,427 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2019-09-10 09:41:24,427 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-09-10 09:41:24,427 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2019-09-10 09:41:24,429 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2019-09-10 09:41:24,429 INFO L138 BoogieDeclarations]: Found implementation of procedure test_tsk_thread_flag [2019-09-10 09:41:24,429 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2019-09-10 09:41:24,429 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemleak_alloc [2019-09-10 09:41:24,429 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_kmalloc [2019-09-10 09:41:24,430 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_index [2019-09-10 09:41:24,430 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_slab [2019-09-10 09:41:24,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-09-10 09:41:24,430 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-09-10 09:41:24,430 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_large [2019-09-10 09:41:24,431 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-09-10 09:41:24,431 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2019-09-10 09:41:24,431 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-09-10 09:41:24,432 INFO L138 BoogieDeclarations]: Found implementation of procedure init_utsname [2019-09-10 09:41:24,433 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2019-09-10 09:41:24,433 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2019-09-10 09:41:24,433 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_enable [2019-09-10 09:41:24,433 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_disable [2019-09-10 09:41:24,433 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_alloc_request [2019-09-10 09:41:24,433 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_free_request [2019-09-10 09:41:24,433 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_queue [2019-09-10 09:41:24,434 INFO L138 BoogieDeclarations]: Found implementation of procedure set_gadget_data [2019-09-10 09:41:24,434 INFO L138 BoogieDeclarations]: Found implementation of procedure get_gadget_data [2019-09-10 09:41:24,434 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_set_selfpowered [2019-09-10 09:41:24,434 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_vbus_draw [2019-09-10 09:41:24,434 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_controller_number [2019-09-10 09:41:24,434 INFO L138 BoogieDeclarations]: Found implementation of procedure utf8_to_utf16le [2019-09-10 09:41:24,434 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_get_string [2019-09-10 09:41:24,435 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_descriptor_fillbuf [2019-09-10 09:41:24,435 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_config_buf [2019-09-10 09:41:24,435 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_copy_descriptors [2019-09-10 09:41:24,435 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_find_endpoint [2019-09-10 09:41:24,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ep_matches [2019-09-10 09:41:24,435 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_autoconfig [2019-09-10 09:41:24,435 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_autoconfig_reset [2019-09-10 09:41:24,436 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_alloc [2019-09-10 09:41:24,436 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_free [2019-09-10 09:41:24,436 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_complete [2019-09-10 09:41:24,436 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_complete [2019-09-10 09:41:24,437 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_open [2019-09-10 09:41:24,438 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_close [2019-09-10 09:41:24,438 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rx_reqs [2019-09-10 09:41:24,438 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_read [2019-09-10 09:41:24,439 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_write [2019-09-10 09:41:24,439 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_fsync [2019-09-10 09:41:24,439 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_poll [2019-09-10 09:41:24,439 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_ioctl [2019-09-10 09:41:24,439 INFO L138 BoogieDeclarations]: Found implementation of procedure set_printer_interface [2019-09-10 09:41:24,441 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_reset_interface [2019-09-10 09:41:24,441 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_set_config [2019-09-10 09:41:24,441 INFO L138 BoogieDeclarations]: Found implementation of procedure config_buf [2019-09-10 09:41:24,442 INFO L138 BoogieDeclarations]: Found implementation of procedure set_interface [2019-09-10 09:41:24,442 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup_complete [2019-09-10 09:41:24,442 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_soft_reset [2019-09-10 09:41:24,443 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup [2019-09-10 09:41:24,443 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_disconnect [2019-09-10 09:41:24,444 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_unbind [2019-09-10 09:41:24,444 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_bind [2019-09-10 09:41:24,444 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2019-09-10 09:41:24,445 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-10 09:41:24,446 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 09:41:24,447 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-09-10 09:41:24,448 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-09-10 09:41:24,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_chrdev_region_5 [2019-09-10 09:41:24,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_class_destroy_6 [2019-09-10 09:41:24,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_gadget_register_driver_7 [2019-09-10 09:41:24,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_class_destroy_8 [2019-09-10 09:41:24,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region_9 [2019-09-10 09:41:24,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_gadget_unregister_driver_10 [2019-09-10 09:41:24,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region_11 [2019-09-10 09:41:24,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_class_destroy_12 [2019-09-10 09:41:24,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-09-10 09:41:24,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-09-10 09:41:24,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive_int [2019-09-10 09:41:24,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-09-10 09:41:24,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-09-10 09:41:24,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-09-10 09:41:24,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-09-10 09:41:24,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-09-10 09:41:24,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_create_class [2019-09-10 09:41:24,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_class [2019-09-10 09:41:24,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_class [2019-09-10 09:41:24,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_chrdev_region [2019-09-10 09:41:24,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region [2019-09-10 09:41:24,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_usb_gadget [2019-09-10 09:41:24,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_usb_gadget [2019-09-10 09:41:24,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-09-10 09:41:24,453 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_free_pages [2019-09-10 09:41:24,453 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-09-10 09:41:24,453 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2019-09-10 09:41:24,454 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2019-09-10 09:41:24,454 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-09-10 09:41:24,455 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2019-09-10 09:41:24,456 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2019-09-10 09:41:24,458 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-09-10 09:41:24,458 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2019-09-10 09:41:24,458 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2019-09-10 09:41:24,458 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2019-09-10 09:41:24,460 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-09-10 09:41:24,460 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_chrdev_region [2019-09-10 09:41:24,460 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2019-09-10 09:41:24,460 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_del [2019-09-10 09:41:24,460 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_init [2019-09-10 09:41:24,460 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2019-09-10 09:41:24,461 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2019-09-10 09:41:24,461 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-09-10 09:41:24,461 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-09-10 09:41:24,461 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-09-10 09:41:24,461 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2019-09-10 09:41:24,462 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create [2019-09-10 09:41:24,462 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2019-09-10 09:41:24,462 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2019-09-10 09:41:24,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2019-09-10 09:41:24,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2019-09-10 09:41:24,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-09-10 09:41:24,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-09-10 09:41:24,467 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2019-09-10 09:41:24,467 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_dereference [2019-09-10 09:41:24,475 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-09-10 09:41:24,475 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2019-09-10 09:41:24,475 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-09-10 09:41:24,475 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2019-09-10 09:41:24,476 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-09-10 09:41:24,476 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2019-09-10 09:41:24,476 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2019-09-10 09:41:24,476 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2019-09-10 09:41:24,477 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2019-09-10 09:41:24,477 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_register_driver [2019-09-10 09:41:24,478 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_unregister_driver [2019-09-10 09:41:24,478 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2019-09-10 09:41:24,478 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2019-09-10 09:41:24,479 INFO L138 BoogieDeclarations]: Found implementation of procedure autoremove_wake_function [2019-09-10 09:41:24,479 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-09-10 09:41:24,479 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-09-10 09:41:24,479 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-09-10 09:41:24,480 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-09-10 09:41:24,480 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 09:41:24,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-09-10 09:41:24,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-09-10 09:41:24,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-09-10 09:41:24,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_create_class [2019-09-10 09:41:24,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_class [2019-09-10 09:41:24,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_chrdev_region [2019-09-10 09:41:24,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region [2019-09-10 09:41:24,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_usb_gadget [2019-09-10 09:41:24,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_usb_gadget [2019-09-10 09:41:24,481 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2019-09-10 09:41:24,481 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2019-09-10 09:41:24,481 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2019-09-10 09:41:24,482 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-09-10 09:41:24,482 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2019-09-10 09:41:24,482 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2019-09-10 09:41:24,482 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-09-10 09:41:24,482 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-09-10 09:41:24,482 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2019-09-10 09:41:24,482 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-09-10 09:41:24,482 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2019-09-10 09:41:24,483 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2019-09-10 09:41:24,483 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2019-09-10 09:41:24,483 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2019-09-10 09:41:24,483 INFO L130 BoogieDeclarations]: Found specification of procedure get_order [2019-09-10 09:41:24,483 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-09-10 09:41:24,483 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-09-10 09:41:24,483 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2019-09-10 09:41:24,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 09:41:24,484 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2019-09-10 09:41:24,484 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2019-09-10 09:41:24,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 09:41:24,484 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2019-09-10 09:41:24,484 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del [2019-09-10 09:41:24,485 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2019-09-10 09:41:24,485 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2019-09-10 09:41:24,485 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2019-09-10 09:41:24,485 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2019-09-10 09:41:24,485 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_dereference [2019-09-10 09:41:24,485 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-09-10 09:41:24,485 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2019-09-10 09:41:24,486 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2019-09-10 09:41:24,486 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2019-09-10 09:41:24,486 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-09-10 09:41:24,486 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-09-10 09:41:24,486 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2019-09-10 09:41:24,486 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2019-09-10 09:41:24,486 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-09-10 09:41:24,486 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-09-10 09:41:24,487 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2019-09-10 09:41:24,487 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2019-09-10 09:41:24,487 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2019-09-10 09:41:24,487 INFO L130 BoogieDeclarations]: Found specification of procedure autoremove_wake_function [2019-09-10 09:41:24,487 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2019-09-10 09:41:24,487 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2019-09-10 09:41:24,487 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-09-10 09:41:24,487 INFO L130 BoogieDeclarations]: Found specification of procedure __get_free_pages [2019-09-10 09:41:24,488 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2019-09-10 09:41:24,488 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2019-09-10 09:41:24,488 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2019-09-10 09:41:24,488 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2019-09-10 09:41:24,488 INFO L130 BoogieDeclarations]: Found specification of procedure test_tsk_thread_flag [2019-09-10 09:41:24,488 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2019-09-10 09:41:24,488 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-09-10 09:41:24,489 INFO L130 BoogieDeclarations]: Found specification of procedure kmemleak_alloc [2019-09-10 09:41:24,489 INFO L130 BoogieDeclarations]: Found specification of procedure trace_kmalloc [2019-09-10 09:41:24,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 09:41:24,489 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~int~X~~gfp_t~0~TO~VOID [2019-09-10 09:41:24,489 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 09:41:24,490 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_index [2019-09-10 09:41:24,490 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_slab [2019-09-10 09:41:24,490 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 09:41:24,490 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-10 09:41:24,490 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 09:41:24,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-09-10 09:41:24,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 09:41:24,491 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-09-10 09:41:24,491 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2019-09-10 09:41:24,492 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_large [2019-09-10 09:41:24,492 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-09-10 09:41:24,492 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-09-10 09:41:24,492 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2019-09-10 09:41:24,492 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2019-09-10 09:41:24,493 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-09-10 09:41:24,493 INFO L130 BoogieDeclarations]: Found specification of procedure init_utsname [2019-09-10 09:41:24,493 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2019-09-10 09:41:24,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_class_destroy_6 [2019-09-10 09:41:24,494 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_class_destroy_8 [2019-09-10 09:41:24,494 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_class_destroy_12 [2019-09-10 09:41:24,494 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-09-10 09:41:24,494 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-09-10 09:41:24,494 INFO L130 BoogieDeclarations]: Found specification of procedure device_create [2019-09-10 09:41:24,494 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2019-09-10 09:41:24,494 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-09-10 09:41:24,495 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2019-09-10 09:41:24,495 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_chrdev_region [2019-09-10 09:41:24,495 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_chrdev_region_5 [2019-09-10 09:41:24,495 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2019-09-10 09:41:24,495 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region_9 [2019-09-10 09:41:24,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region_11 [2019-09-10 09:41:24,496 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2019-09-10 09:41:24,496 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2019-09-10 09:41:24,496 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_init [2019-09-10 09:41:24,496 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2019-09-10 09:41:24,498 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_del [2019-09-10 09:41:24,503 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2019-09-10 09:41:24,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 09:41:24,503 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_enable [2019-09-10 09:41:24,503 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-09-10 09:41:24,503 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_disable [2019-09-10 09:41:24,506 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2019-09-10 09:41:24,506 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_alloc_request [2019-09-10 09:41:24,507 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~gfp_t~0~TO~$Pointer$ [2019-09-10 09:41:24,507 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_free_request [2019-09-10 09:41:24,507 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2019-09-10 09:41:24,507 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_queue [2019-09-10 09:41:24,507 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~gfp_t~0~TO~int [2019-09-10 09:41:24,507 INFO L130 BoogieDeclarations]: Found specification of procedure set_gadget_data [2019-09-10 09:41:24,507 INFO L130 BoogieDeclarations]: Found specification of procedure get_gadget_data [2019-09-10 09:41:24,508 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_set_selfpowered [2019-09-10 09:41:24,508 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2019-09-10 09:41:24,508 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_vbus_draw [2019-09-10 09:41:24,509 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_register_driver [2019-09-10 09:41:24,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_gadget_register_driver_7 [2019-09-10 09:41:24,509 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_unregister_driver [2019-09-10 09:41:24,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_gadget_unregister_driver_10 [2019-09-10 09:41:24,509 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_get_string [2019-09-10 09:41:24,509 INFO L130 BoogieDeclarations]: Found specification of procedure usb_descriptor_fillbuf [2019-09-10 09:41:24,510 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_config_buf [2019-09-10 09:41:24,510 INFO L130 BoogieDeclarations]: Found specification of procedure usb_copy_descriptors [2019-09-10 09:41:24,510 INFO L130 BoogieDeclarations]: Found specification of procedure usb_find_endpoint [2019-09-10 09:41:24,510 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_autoconfig [2019-09-10 09:41:24,511 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_autoconfig_reset [2019-09-10 09:41:24,511 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_controller_number [2019-09-10 09:41:24,511 INFO L130 BoogieDeclarations]: Found specification of procedure utf8_to_utf16le [2019-09-10 09:41:24,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-09-10 09:41:24,511 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-09-10 09:41:24,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-09-10 09:41:24,512 INFO L130 BoogieDeclarations]: Found specification of procedure ep_matches [2019-09-10 09:41:24,512 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_alloc [2019-09-10 09:41:24,512 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_free [2019-09-10 09:41:24,512 INFO L130 BoogieDeclarations]: Found specification of procedure rx_complete [2019-09-10 09:41:24,512 INFO L130 BoogieDeclarations]: Found specification of procedure tx_complete [2019-09-10 09:41:24,512 INFO L130 BoogieDeclarations]: Found specification of procedure printer_open [2019-09-10 09:41:24,512 INFO L130 BoogieDeclarations]: Found specification of procedure printer_close [2019-09-10 09:41:24,513 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rx_reqs [2019-09-10 09:41:24,513 INFO L130 BoogieDeclarations]: Found specification of procedure printer_read [2019-09-10 09:41:24,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 09:41:24,513 INFO L130 BoogieDeclarations]: Found specification of procedure printer_write [2019-09-10 09:41:24,513 INFO L130 BoogieDeclarations]: Found specification of procedure printer_fsync [2019-09-10 09:41:24,514 INFO L130 BoogieDeclarations]: Found specification of procedure printer_poll [2019-09-10 09:41:24,514 INFO L130 BoogieDeclarations]: Found specification of procedure printer_ioctl [2019-09-10 09:41:24,514 INFO L130 BoogieDeclarations]: Found specification of procedure set_printer_interface [2019-09-10 09:41:24,514 INFO L130 BoogieDeclarations]: Found specification of procedure printer_reset_interface [2019-09-10 09:41:24,514 INFO L130 BoogieDeclarations]: Found specification of procedure printer_set_config [2019-09-10 09:41:24,515 INFO L130 BoogieDeclarations]: Found specification of procedure config_buf [2019-09-10 09:41:24,515 INFO L130 BoogieDeclarations]: Found specification of procedure set_interface [2019-09-10 09:41:24,515 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup_complete [2019-09-10 09:41:24,515 INFO L130 BoogieDeclarations]: Found specification of procedure printer_soft_reset [2019-09-10 09:41:24,515 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup [2019-09-10 09:41:24,516 INFO L130 BoogieDeclarations]: Found specification of procedure printer_disconnect [2019-09-10 09:41:24,516 INFO L130 BoogieDeclarations]: Found specification of procedure printer_unbind [2019-09-10 09:41:24,516 INFO L130 BoogieDeclarations]: Found specification of procedure printer_bind [2019-09-10 09:41:24,516 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-09-10 09:41:24,516 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-10 09:41:24,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-09-10 09:41:24,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2019-09-10 09:41:24,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-09-10 09:41:24,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2019-09-10 09:41:24,517 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 09:41:24,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-09-10 09:41:24,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-09-10 09:41:24,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-09-10 09:41:24,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive_int [2019-09-10 09:41:24,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-09-10 09:41:24,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-09-10 09:41:24,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_class [2019-09-10 09:41:24,519 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-09-10 09:41:24,519 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-09-10 09:41:24,519 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-09-10 09:41:24,519 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 09:41:24,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 09:41:24,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 09:41:24,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-10 09:41:24,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 09:41:24,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-09-10 09:41:24,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-09-10 09:41:24,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-09-10 09:41:24,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-09-10 09:41:25,743 INFO L684 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-09-10 09:41:32,578 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 09:41:32,578 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-10 09:41:32,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 09:41:32 BoogieIcfgContainer [2019-09-10 09:41:32,581 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 09:41:32,582 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 09:41:32,582 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 09:41:32,585 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 09:41:32,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 09:41:21" (1/3) ... [2019-09-10 09:41:32,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a320436 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 09:41:32, skipping insertion in model container [2019-09-10 09:41:32,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 09:41:24" (2/3) ... [2019-09-10 09:41:32,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a320436 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 09:41:32, skipping insertion in model container [2019-09-10 09:41:32,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 09:41:32" (3/3) ... [2019-09-10 09:41:32,589 INFO L109 eAbstractionObserver]: Analyzing ICFG m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-2.i [2019-09-10 09:41:32,599 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 09:41:32,616 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 09:41:32,634 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 09:41:32,673 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 09:41:32,673 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 09:41:32,673 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 09:41:32,673 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 09:41:32,674 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 09:41:32,674 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 09:41:32,674 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 09:41:32,674 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 09:41:32,727 INFO L276 IsEmpty]: Start isEmpty. Operand 1542 states. [2019-09-10 09:41:32,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-09-10 09:41:32,741 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 09:41:32,742 INFO L399 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] [2019-09-10 09:41:32,744 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 09:41:32,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 09:41:32,750 INFO L82 PathProgramCache]: Analyzing trace with hash 720613046, now seen corresponding path program 1 times [2019-09-10 09:41:32,752 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 09:41:32,837 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:41:32,838 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 09:41:32,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:41:32,838 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 09:41:33,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 09:41:33,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 09:41:33,610 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 09:41:33,610 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 09:41:33,611 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 09:41:33,617 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 09:41:33,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 09:41:33,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 09:41:33,635 INFO L87 Difference]: Start difference. First operand 1542 states. Second operand 3 states. [2019-09-10 09:41:33,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 09:41:33,989 INFO L93 Difference]: Finished difference Result 2672 states and 3667 transitions. [2019-09-10 09:41:33,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 09:41:33,991 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2019-09-10 09:41:33,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 09:41:34,038 INFO L225 Difference]: With dead ends: 2672 [2019-09-10 09:41:34,039 INFO L226 Difference]: Without dead ends: 2662 [2019-09-10 09:41:34,041 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 09:41:34,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2662 states. [2019-09-10 09:41:34,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2662 to 2657. [2019-09-10 09:41:34,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2657 states. [2019-09-10 09:41:34,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2657 states to 2657 states and 3650 transitions. [2019-09-10 09:41:34,310 INFO L78 Accepts]: Start accepts. Automaton has 2657 states and 3650 transitions. Word has length 29 [2019-09-10 09:41:34,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 09:41:34,312 INFO L475 AbstractCegarLoop]: Abstraction has 2657 states and 3650 transitions. [2019-09-10 09:41:34,312 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 09:41:34,312 INFO L276 IsEmpty]: Start isEmpty. Operand 2657 states and 3650 transitions. [2019-09-10 09:41:34,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-09-10 09:41:34,314 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 09:41:34,314 INFO L399 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] [2019-09-10 09:41:34,314 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 09:41:34,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 09:41:34,315 INFO L82 PathProgramCache]: Analyzing trace with hash 861919949, now seen corresponding path program 1 times [2019-09-10 09:41:34,315 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 09:41:34,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:41:34,321 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 09:41:34,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:41:34,321 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 09:41:34,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 09:41:34,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 09:41:34,633 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 09:41:34,633 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 09:41:34,634 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 09:41:34,635 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 09:41:34,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 09:41:34,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 09:41:34,636 INFO L87 Difference]: Start difference. First operand 2657 states and 3650 transitions. Second operand 3 states. [2019-09-10 09:41:34,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 09:41:34,763 INFO L93 Difference]: Finished difference Result 5261 states and 7231 transitions. [2019-09-10 09:41:34,764 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 09:41:34,764 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2019-09-10 09:41:34,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 09:41:34,803 INFO L225 Difference]: With dead ends: 5261 [2019-09-10 09:41:34,804 INFO L226 Difference]: Without dead ends: 5261 [2019-09-10 09:41:34,805 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 09:41:34,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5261 states. [2019-09-10 09:41:35,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5261 to 5245. [2019-09-10 09:41:35,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5245 states. [2019-09-10 09:41:35,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5245 states to 5245 states and 7216 transitions. [2019-09-10 09:41:35,065 INFO L78 Accepts]: Start accepts. Automaton has 5245 states and 7216 transitions. Word has length 30 [2019-09-10 09:41:35,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 09:41:35,065 INFO L475 AbstractCegarLoop]: Abstraction has 5245 states and 7216 transitions. [2019-09-10 09:41:35,065 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 09:41:35,065 INFO L276 IsEmpty]: Start isEmpty. Operand 5245 states and 7216 transitions. [2019-09-10 09:41:35,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-09-10 09:41:35,070 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 09:41:35,070 INFO L399 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] [2019-09-10 09:41:35,071 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 09:41:35,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 09:41:35,071 INFO L82 PathProgramCache]: Analyzing trace with hash -183738392, now seen corresponding path program 1 times [2019-09-10 09:41:35,072 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 09:41:35,075 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:41:35,075 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 09:41:35,075 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:41:35,076 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 09:41:35,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 09:41:35,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 09:41:35,533 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 09:41:35,533 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-10 09:41:35,533 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 09:41:35,533 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-10 09:41:35,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-10 09:41:35,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 09:41:35,534 INFO L87 Difference]: Start difference. First operand 5245 states and 7216 transitions. Second operand 4 states. [2019-09-10 09:41:44,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 09:41:44,569 INFO L93 Difference]: Finished difference Result 10373 states and 14291 transitions. [2019-09-10 09:41:44,569 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 09:41:44,569 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 60 [2019-09-10 09:41:44,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 09:41:44,640 INFO L225 Difference]: With dead ends: 10373 [2019-09-10 09:41:44,640 INFO L226 Difference]: Without dead ends: 10364 [2019-09-10 09:41:44,641 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-10 09:41:44,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10364 states. [2019-09-10 09:41:44,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10364 to 9109. [2019-09-10 09:41:44,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9109 states. [2019-09-10 09:41:44,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9109 states to 9109 states and 12543 transitions. [2019-09-10 09:41:44,990 INFO L78 Accepts]: Start accepts. Automaton has 9109 states and 12543 transitions. Word has length 60 [2019-09-10 09:41:44,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 09:41:44,991 INFO L475 AbstractCegarLoop]: Abstraction has 9109 states and 12543 transitions. [2019-09-10 09:41:44,991 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-10 09:41:44,991 INFO L276 IsEmpty]: Start isEmpty. Operand 9109 states and 12543 transitions. [2019-09-10 09:41:44,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-09-10 09:41:44,993 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 09:41:44,993 INFO L399 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] [2019-09-10 09:41:44,994 INFO L418 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 09:41:44,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 09:41:44,994 INFO L82 PathProgramCache]: Analyzing trace with hash -1242276972, now seen corresponding path program 1 times [2019-09-10 09:41:44,995 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 09:41:44,997 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:41:44,997 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 09:41:44,997 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:41:44,998 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 09:41:45,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 09:41:45,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 09:41:45,806 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 09:41:45,806 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-09-10 09:41:45,806 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 09:41:45,806 INFO L454 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-09-10 09:41:45,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-09-10 09:41:45,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2019-09-10 09:41:45,809 INFO L87 Difference]: Start difference. First operand 9109 states and 12543 transitions. Second operand 12 states. [2019-09-10 09:41:48,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 09:41:48,961 INFO L93 Difference]: Finished difference Result 11589 states and 15983 transitions. [2019-09-10 09:41:48,961 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-09-10 09:41:48,962 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 62 [2019-09-10 09:41:48,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 09:41:49,034 INFO L225 Difference]: With dead ends: 11589 [2019-09-10 09:41:49,034 INFO L226 Difference]: Without dead ends: 11589 [2019-09-10 09:41:49,036 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=433, Unknown=0, NotChecked=0, Total=506 [2019-09-10 09:41:49,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11589 states. [2019-09-10 09:41:49,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11589 to 9091. [2019-09-10 09:41:49,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9091 states. [2019-09-10 09:41:49,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9091 states to 9091 states and 12520 transitions. [2019-09-10 09:41:49,372 INFO L78 Accepts]: Start accepts. Automaton has 9091 states and 12520 transitions. Word has length 62 [2019-09-10 09:41:49,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 09:41:49,373 INFO L475 AbstractCegarLoop]: Abstraction has 9091 states and 12520 transitions. [2019-09-10 09:41:49,373 INFO L476 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-09-10 09:41:49,373 INFO L276 IsEmpty]: Start isEmpty. Operand 9091 states and 12520 transitions. [2019-09-10 09:41:49,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-09-10 09:41:49,383 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 09:41:49,383 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-10 09:41:49,383 INFO L418 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 09:41:49,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 09:41:49,384 INFO L82 PathProgramCache]: Analyzing trace with hash 409253441, now seen corresponding path program 1 times [2019-09-10 09:41:49,384 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 09:41:49,390 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:41:49,390 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 09:41:49,391 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:41:49,391 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 09:41:49,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 09:41:50,257 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-09-10 09:41:50,257 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 09:41:50,258 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-09-10 09:41:50,258 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 09:41:50,260 INFO L454 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-09-10 09:41:50,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-09-10 09:41:50,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2019-09-10 09:41:50,262 INFO L87 Difference]: Start difference. First operand 9091 states and 12520 transitions. Second operand 15 states. [2019-09-10 09:41:53,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 09:41:53,259 INFO L93 Difference]: Finished difference Result 11591 states and 15984 transitions. [2019-09-10 09:41:53,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-09-10 09:41:53,260 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 77 [2019-09-10 09:41:53,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 09:41:53,319 INFO L225 Difference]: With dead ends: 11591 [2019-09-10 09:41:53,319 INFO L226 Difference]: Without dead ends: 11577 [2019-09-10 09:41:53,320 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2019-09-10 09:41:53,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11577 states. [2019-09-10 09:41:53,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11577 to 9081. [2019-09-10 09:41:53,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9081 states. [2019-09-10 09:41:53,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9081 states to 9081 states and 12509 transitions. [2019-09-10 09:41:53,596 INFO L78 Accepts]: Start accepts. Automaton has 9081 states and 12509 transitions. Word has length 77 [2019-09-10 09:41:53,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 09:41:53,596 INFO L475 AbstractCegarLoop]: Abstraction has 9081 states and 12509 transitions. [2019-09-10 09:41:53,596 INFO L476 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-09-10 09:41:53,596 INFO L276 IsEmpty]: Start isEmpty. Operand 9081 states and 12509 transitions. [2019-09-10 09:41:53,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-09-10 09:41:53,598 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 09:41:53,598 INFO L399 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, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 09:41:53,598 INFO L418 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 09:41:53,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 09:41:53,598 INFO L82 PathProgramCache]: Analyzing trace with hash 109892250, now seen corresponding path program 1 times [2019-09-10 09:41:53,599 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 09:41:53,603 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:41:53,603 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 09:41:53,603 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:41:53,603 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 09:41:53,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 09:41:54,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 09:41:54,084 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 09:41:54,084 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-09-10 09:41:54,084 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 09:41:54,084 INFO L454 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-09-10 09:41:54,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-09-10 09:41:54,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2019-09-10 09:41:54,085 INFO L87 Difference]: Start difference. First operand 9081 states and 12509 transitions. Second operand 12 states. [2019-09-10 09:41:56,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 09:41:56,908 INFO L93 Difference]: Finished difference Result 6459 states and 8904 transitions. [2019-09-10 09:41:56,908 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-09-10 09:41:56,909 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 77 [2019-09-10 09:41:56,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 09:41:56,935 INFO L225 Difference]: With dead ends: 6459 [2019-09-10 09:41:56,935 INFO L226 Difference]: Without dead ends: 6444 [2019-09-10 09:41:56,936 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=357, Unknown=0, NotChecked=0, Total=420 [2019-09-10 09:41:56,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6444 states. [2019-09-10 09:41:57,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6444 to 6444. [2019-09-10 09:41:57,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6444 states. [2019-09-10 09:41:57,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6444 states to 6444 states and 8889 transitions. [2019-09-10 09:41:57,092 INFO L78 Accepts]: Start accepts. Automaton has 6444 states and 8889 transitions. Word has length 77 [2019-09-10 09:41:57,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 09:41:57,094 INFO L475 AbstractCegarLoop]: Abstraction has 6444 states and 8889 transitions. [2019-09-10 09:41:57,094 INFO L476 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-09-10 09:41:57,094 INFO L276 IsEmpty]: Start isEmpty. Operand 6444 states and 8889 transitions. [2019-09-10 09:41:57,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2019-09-10 09:41:57,096 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 09:41:57,096 INFO L399 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 09:41:57,096 INFO L418 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 09:41:57,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 09:41:57,097 INFO L82 PathProgramCache]: Analyzing trace with hash 1504060568, now seen corresponding path program 1 times [2019-09-10 09:41:57,097 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 09:41:57,099 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:41:57,099 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 09:41:57,099 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:41:57,099 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 09:41:57,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 09:41:57,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 09:41:57,354 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 09:41:57,354 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 09:41:57,355 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 09:41:57,355 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 09:41:57,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 09:41:57,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 09:41:57,357 INFO L87 Difference]: Start difference. First operand 6444 states and 8889 transitions. Second operand 3 states. [2019-09-10 09:41:59,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 09:41:59,861 INFO L93 Difference]: Finished difference Result 7675 states and 10594 transitions. [2019-09-10 09:41:59,861 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 09:41:59,861 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 80 [2019-09-10 09:41:59,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 09:41:59,904 INFO L225 Difference]: With dead ends: 7675 [2019-09-10 09:41:59,904 INFO L226 Difference]: Without dead ends: 7665 [2019-09-10 09:41:59,904 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 09:41:59,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7665 states. [2019-09-10 09:42:00,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7665 to 5170. [2019-09-10 09:42:00,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5170 states. [2019-09-10 09:42:00,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5170 states to 5170 states and 7123 transitions. [2019-09-10 09:42:00,195 INFO L78 Accepts]: Start accepts. Automaton has 5170 states and 7123 transitions. Word has length 80 [2019-09-10 09:42:00,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 09:42:00,196 INFO L475 AbstractCegarLoop]: Abstraction has 5170 states and 7123 transitions. [2019-09-10 09:42:00,196 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 09:42:00,196 INFO L276 IsEmpty]: Start isEmpty. Operand 5170 states and 7123 transitions. [2019-09-10 09:42:00,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2019-09-10 09:42:00,197 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 09:42:00,197 INFO L399 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 09:42:00,198 INFO L418 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 09:42:00,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 09:42:00,198 INFO L82 PathProgramCache]: Analyzing trace with hash 556862832, now seen corresponding path program 1 times [2019-09-10 09:42:00,199 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 09:42:00,201 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:42:00,201 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 09:42:00,201 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:42:00,201 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 09:42:00,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 09:42:00,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 09:42:00,516 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 09:42:00,516 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-10 09:42:00,517 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 09:42:00,517 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-10 09:42:00,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-10 09:42:00,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-10 09:42:00,518 INFO L87 Difference]: Start difference. First operand 5170 states and 7123 transitions. Second operand 8 states. [2019-09-10 09:42:00,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 09:42:00,653 INFO L93 Difference]: Finished difference Result 5155 states and 7104 transitions. [2019-09-10 09:42:00,654 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 09:42:00,654 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 96 [2019-09-10 09:42:00,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 09:42:00,677 INFO L225 Difference]: With dead ends: 5155 [2019-09-10 09:42:00,678 INFO L226 Difference]: Without dead ends: 5155 [2019-09-10 09:42:00,678 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-09-10 09:42:00,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5155 states. [2019-09-10 09:42:00,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5155 to 5155. [2019-09-10 09:42:00,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5155 states. [2019-09-10 09:42:00,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 7104 transitions. [2019-09-10 09:42:00,795 INFO L78 Accepts]: Start accepts. Automaton has 5155 states and 7104 transitions. Word has length 96 [2019-09-10 09:42:00,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 09:42:00,795 INFO L475 AbstractCegarLoop]: Abstraction has 5155 states and 7104 transitions. [2019-09-10 09:42:00,795 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-10 09:42:00,795 INFO L276 IsEmpty]: Start isEmpty. Operand 5155 states and 7104 transitions. [2019-09-10 09:42:00,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-09-10 09:42:00,797 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 09:42:00,797 INFO L399 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] [2019-09-10 09:42:00,797 INFO L418 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 09:42:00,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 09:42:00,798 INFO L82 PathProgramCache]: Analyzing trace with hash -594444368, now seen corresponding path program 1 times [2019-09-10 09:42:00,798 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 09:42:00,800 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:42:00,800 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 09:42:00,800 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:42:00,800 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 09:42:00,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 09:42:01,055 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-09-10 09:42:01,055 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 09:42:01,055 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-10 09:42:01,056 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 09:42:01,056 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-10 09:42:01,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-10 09:42:01,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-10 09:42:01,057 INFO L87 Difference]: Start difference. First operand 5155 states and 7104 transitions. Second operand 8 states. [2019-09-10 09:42:01,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 09:42:01,154 INFO L93 Difference]: Finished difference Result 3885 states and 5341 transitions. [2019-09-10 09:42:01,154 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 09:42:01,155 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 103 [2019-09-10 09:42:01,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 09:42:01,171 INFO L225 Difference]: With dead ends: 3885 [2019-09-10 09:42:01,171 INFO L226 Difference]: Without dead ends: 3885 [2019-09-10 09:42:01,172 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-09-10 09:42:01,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3885 states. [2019-09-10 09:42:01,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3885 to 3885. [2019-09-10 09:42:01,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3885 states. [2019-09-10 09:42:01,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3885 states to 3885 states and 5341 transitions. [2019-09-10 09:42:01,257 INFO L78 Accepts]: Start accepts. Automaton has 3885 states and 5341 transitions. Word has length 103 [2019-09-10 09:42:01,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 09:42:01,257 INFO L475 AbstractCegarLoop]: Abstraction has 3885 states and 5341 transitions. [2019-09-10 09:42:01,257 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-10 09:42:01,258 INFO L276 IsEmpty]: Start isEmpty. Operand 3885 states and 5341 transitions. [2019-09-10 09:42:01,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2019-09-10 09:42:01,259 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 09:42:01,259 INFO L399 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] [2019-09-10 09:42:01,260 INFO L418 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 09:42:01,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 09:42:01,260 INFO L82 PathProgramCache]: Analyzing trace with hash 1992954746, now seen corresponding path program 1 times [2019-09-10 09:42:01,260 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 09:42:01,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:42:01,262 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 09:42:01,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:42:01,263 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 09:42:01,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 09:42:01,524 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-09-10 09:42:01,524 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 09:42:01,524 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-10 09:42:01,524 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 09:42:01,525 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-10 09:42:01,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-10 09:42:01,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-10 09:42:01,526 INFO L87 Difference]: Start difference. First operand 3885 states and 5341 transitions. Second operand 8 states. [2019-09-10 09:42:01,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 09:42:01,610 INFO L93 Difference]: Finished difference Result 2659 states and 3632 transitions. [2019-09-10 09:42:01,611 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 09:42:01,611 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 106 [2019-09-10 09:42:01,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 09:42:01,620 INFO L225 Difference]: With dead ends: 2659 [2019-09-10 09:42:01,621 INFO L226 Difference]: Without dead ends: 2659 [2019-09-10 09:42:01,621 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-09-10 09:42:01,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2659 states. [2019-09-10 09:42:01,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2659 to 2659. [2019-09-10 09:42:01,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2659 states. [2019-09-10 09:42:01,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2659 states to 2659 states and 3632 transitions. [2019-09-10 09:42:01,672 INFO L78 Accepts]: Start accepts. Automaton has 2659 states and 3632 transitions. Word has length 106 [2019-09-10 09:42:01,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 09:42:01,673 INFO L475 AbstractCegarLoop]: Abstraction has 2659 states and 3632 transitions. [2019-09-10 09:42:01,673 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-10 09:42:01,673 INFO L276 IsEmpty]: Start isEmpty. Operand 2659 states and 3632 transitions. [2019-09-10 09:42:01,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2019-09-10 09:42:01,675 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 09:42:01,675 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-10 09:42:01,675 INFO L418 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 09:42:01,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 09:42:01,676 INFO L82 PathProgramCache]: Analyzing trace with hash 14046403, now seen corresponding path program 1 times [2019-09-10 09:42:01,676 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 09:42:01,679 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:42:01,679 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 09:42:01,679 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:42:01,680 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 09:42:01,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 09:42:01,968 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-09-10 09:42:01,969 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 09:42:01,969 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-09-10 09:42:01,969 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 09:42:01,969 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-09-10 09:42:01,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-09-10 09:42:01,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-09-10 09:42:01,970 INFO L87 Difference]: Start difference. First operand 2659 states and 3632 transitions. Second operand 11 states. [2019-09-10 09:42:02,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 09:42:02,091 INFO L93 Difference]: Finished difference Result 1434 states and 1923 transitions. [2019-09-10 09:42:02,092 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-10 09:42:02,092 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 110 [2019-09-10 09:42:02,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 09:42:02,097 INFO L225 Difference]: With dead ends: 1434 [2019-09-10 09:42:02,097 INFO L226 Difference]: Without dead ends: 1400 [2019-09-10 09:42:02,099 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2019-09-10 09:42:02,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1400 states. [2019-09-10 09:42:02,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1400 to 1398. [2019-09-10 09:42:02,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1398 states. [2019-09-10 09:42:02,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1398 states to 1398 states and 1886 transitions. [2019-09-10 09:42:02,123 INFO L78 Accepts]: Start accepts. Automaton has 1398 states and 1886 transitions. Word has length 110 [2019-09-10 09:42:02,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 09:42:02,123 INFO L475 AbstractCegarLoop]: Abstraction has 1398 states and 1886 transitions. [2019-09-10 09:42:02,124 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-09-10 09:42:02,124 INFO L276 IsEmpty]: Start isEmpty. Operand 1398 states and 1886 transitions. [2019-09-10 09:42:02,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-09-10 09:42:02,125 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 09:42:02,126 INFO L399 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, 1] [2019-09-10 09:42:02,126 INFO L418 AbstractCegarLoop]: === Iteration 12 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 09:42:02,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 09:42:02,126 INFO L82 PathProgramCache]: Analyzing trace with hash 1859144313, now seen corresponding path program 1 times [2019-09-10 09:42:02,127 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 09:42:02,129 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:42:02,129 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 09:42:02,129 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:42:02,129 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 09:42:02,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 09:42:02,452 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-09-10 09:42:02,452 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 09:42:02,452 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-10 09:42:02,452 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 09:42:02,453 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-10 09:42:02,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-10 09:42:02,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-10 09:42:02,454 INFO L87 Difference]: Start difference. First operand 1398 states and 1886 transitions. Second operand 8 states. [2019-09-10 09:42:02,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 09:42:02,537 INFO L93 Difference]: Finished difference Result 1389 states and 1873 transitions. [2019-09-10 09:42:02,537 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 09:42:02,537 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 109 [2019-09-10 09:42:02,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 09:42:02,542 INFO L225 Difference]: With dead ends: 1389 [2019-09-10 09:42:02,543 INFO L226 Difference]: Without dead ends: 1389 [2019-09-10 09:42:02,543 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-09-10 09:42:02,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1389 states. [2019-09-10 09:42:02,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1389 to 1389. [2019-09-10 09:42:02,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1389 states. [2019-09-10 09:42:02,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1389 states to 1389 states and 1873 transitions. [2019-09-10 09:42:02,576 INFO L78 Accepts]: Start accepts. Automaton has 1389 states and 1873 transitions. Word has length 109 [2019-09-10 09:42:02,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 09:42:02,576 INFO L475 AbstractCegarLoop]: Abstraction has 1389 states and 1873 transitions. [2019-09-10 09:42:02,577 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-10 09:42:02,577 INFO L276 IsEmpty]: Start isEmpty. Operand 1389 states and 1873 transitions. [2019-09-10 09:42:02,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-09-10 09:42:02,578 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 09:42:02,578 INFO L399 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] [2019-09-10 09:42:02,578 INFO L418 AbstractCegarLoop]: === Iteration 13 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 09:42:02,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 09:42:02,579 INFO L82 PathProgramCache]: Analyzing trace with hash 1360408703, now seen corresponding path program 1 times [2019-09-10 09:42:02,579 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 09:42:02,582 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:42:02,582 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 09:42:02,582 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:42:02,582 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 09:42:02,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 09:42:02,885 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-09-10 09:42:02,886 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 09:42:02,886 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-09-10 09:42:02,886 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 09:42:02,887 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-09-10 09:42:02,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-09-10 09:42:02,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-09-10 09:42:02,888 INFO L87 Difference]: Start difference. First operand 1389 states and 1873 transitions. Second operand 11 states. [2019-09-10 09:42:03,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 09:42:03,021 INFO L93 Difference]: Finished difference Result 1386 states and 1869 transitions. [2019-09-10 09:42:03,022 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-10 09:42:03,022 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 108 [2019-09-10 09:42:03,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 09:42:03,028 INFO L225 Difference]: With dead ends: 1386 [2019-09-10 09:42:03,028 INFO L226 Difference]: Without dead ends: 1386 [2019-09-10 09:42:03,028 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2019-09-10 09:42:03,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1386 states. [2019-09-10 09:42:03,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1386 to 1386. [2019-09-10 09:42:03,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1386 states. [2019-09-10 09:42:03,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1386 states to 1386 states and 1869 transitions. [2019-09-10 09:42:03,051 INFO L78 Accepts]: Start accepts. Automaton has 1386 states and 1869 transitions. Word has length 108 [2019-09-10 09:42:03,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 09:42:03,052 INFO L475 AbstractCegarLoop]: Abstraction has 1386 states and 1869 transitions. [2019-09-10 09:42:03,052 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-09-10 09:42:03,052 INFO L276 IsEmpty]: Start isEmpty. Operand 1386 states and 1869 transitions. [2019-09-10 09:42:03,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2019-09-10 09:42:03,055 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 09:42:03,055 INFO L399 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 09:42:03,056 INFO L418 AbstractCegarLoop]: === Iteration 14 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 09:42:03,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 09:42:03,056 INFO L82 PathProgramCache]: Analyzing trace with hash -780573357, now seen corresponding path program 1 times [2019-09-10 09:42:03,056 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 09:42:03,058 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:42:03,059 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 09:42:03,059 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:42:03,059 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 09:42:03,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 09:42:03,294 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-09-10 09:42:03,295 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 09:42:03,295 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 09:42:03,295 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 09:42:03,296 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 09:42:03,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 09:42:03,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 09:42:03,297 INFO L87 Difference]: Start difference. First operand 1386 states and 1869 transitions. Second operand 3 states. [2019-09-10 09:42:05,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 09:42:05,712 INFO L93 Difference]: Finished difference Result 1385 states and 1867 transitions. [2019-09-10 09:42:05,713 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 09:42:05,713 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 123 [2019-09-10 09:42:05,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 09:42:05,719 INFO L225 Difference]: With dead ends: 1385 [2019-09-10 09:42:05,719 INFO L226 Difference]: Without dead ends: 1337 [2019-09-10 09:42:05,720 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 09:42:05,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1337 states. [2019-09-10 09:42:05,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1337 to 1337. [2019-09-10 09:42:05,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1337 states. [2019-09-10 09:42:05,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1337 states to 1337 states and 1817 transitions. [2019-09-10 09:42:05,743 INFO L78 Accepts]: Start accepts. Automaton has 1337 states and 1817 transitions. Word has length 123 [2019-09-10 09:42:05,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 09:42:05,743 INFO L475 AbstractCegarLoop]: Abstraction has 1337 states and 1817 transitions. [2019-09-10 09:42:05,744 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 09:42:05,744 INFO L276 IsEmpty]: Start isEmpty. Operand 1337 states and 1817 transitions. [2019-09-10 09:42:05,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2019-09-10 09:42:05,745 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 09:42:05,745 INFO L399 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 09:42:05,746 INFO L418 AbstractCegarLoop]: === Iteration 15 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 09:42:05,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 09:42:05,746 INFO L82 PathProgramCache]: Analyzing trace with hash -994404246, now seen corresponding path program 1 times [2019-09-10 09:42:05,746 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 09:42:05,748 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:42:05,749 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 09:42:05,749 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:42:05,749 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 09:42:05,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 09:42:05,982 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-09-10 09:42:05,982 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 09:42:05,982 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 09:42:05,982 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 09:42:05,983 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 09:42:05,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 09:42:05,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 09:42:05,984 INFO L87 Difference]: Start difference. First operand 1337 states and 1817 transitions. Second operand 3 states. [2019-09-10 09:42:08,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 09:42:08,398 INFO L93 Difference]: Finished difference Result 1334 states and 1814 transitions. [2019-09-10 09:42:08,399 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 09:42:08,399 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2019-09-10 09:42:08,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 09:42:08,399 INFO L225 Difference]: With dead ends: 1334 [2019-09-10 09:42:08,400 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 09:42:08,400 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 09:42:08,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 09:42:08,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 09:42:08,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 09:42:08,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 09:42:08,401 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 126 [2019-09-10 09:42:08,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 09:42:08,401 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 09:42:08,401 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 09:42:08,401 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 09:42:08,402 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 09:42:08,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 09:42:08 BoogieIcfgContainer [2019-09-10 09:42:08,407 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 09:42:08,409 INFO L168 Benchmark]: Toolchain (without parser) took 46686.31 ms. Allocated memory was 134.2 MB in the beginning and 1.0 GB in the end (delta: 872.9 MB). Free memory was 82.2 MB in the beginning and 465.5 MB in the end (delta: -383.4 MB). Peak memory consumption was 489.6 MB. Max. memory is 7.1 GB. [2019-09-10 09:42:08,410 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 134.2 MB. Free memory was 108.7 MB in the beginning and 108.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-09-10 09:42:08,411 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2319.09 ms. Allocated memory was 134.2 MB in the beginning and 257.9 MB in the end (delta: 123.7 MB). Free memory was 82.0 MB in the beginning and 189.7 MB in the end (delta: -107.8 MB). Peak memory consumption was 114.3 MB. Max. memory is 7.1 GB. [2019-09-10 09:42:08,412 INFO L168 Benchmark]: Boogie Preprocessor took 299.25 ms. Allocated memory is still 257.9 MB. Free memory was 189.7 MB in the beginning and 157.3 MB in the end (delta: 32.4 MB). Peak memory consumption was 32.4 MB. Max. memory is 7.1 GB. [2019-09-10 09:42:08,413 INFO L168 Benchmark]: RCFGBuilder took 8238.82 ms. Allocated memory was 257.9 MB in the beginning and 528.5 MB in the end (delta: 270.5 MB). Free memory was 157.3 MB in the beginning and 368.0 MB in the end (delta: -210.7 MB). Peak memory consumption was 306.1 MB. Max. memory is 7.1 GB. [2019-09-10 09:42:08,414 INFO L168 Benchmark]: TraceAbstraction took 35825.01 ms. Allocated memory was 528.5 MB in the beginning and 1.0 GB in the end (delta: 478.7 MB). Free memory was 368.0 MB in the beginning and 465.5 MB in the end (delta: -97.5 MB). Peak memory consumption was 381.2 MB. Max. memory is 7.1 GB. [2019-09-10 09:42:08,417 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 134.2 MB. Free memory was 108.7 MB in the beginning and 108.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2319.09 ms. Allocated memory was 134.2 MB in the beginning and 257.9 MB in the end (delta: 123.7 MB). Free memory was 82.0 MB in the beginning and 189.7 MB in the end (delta: -107.8 MB). Peak memory consumption was 114.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 299.25 ms. Allocated memory is still 257.9 MB. Free memory was 189.7 MB in the beginning and 157.3 MB in the end (delta: 32.4 MB). Peak memory consumption was 32.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8238.82 ms. Allocated memory was 257.9 MB in the beginning and 528.5 MB in the end (delta: 270.5 MB). Free memory was 157.3 MB in the beginning and 368.0 MB in the end (delta: -210.7 MB). Peak memory consumption was 306.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 35825.01 ms. Allocated memory was 528.5 MB in the beginning and 1.0 GB in the end (delta: 478.7 MB). Free memory was 368.0 MB in the beginning and 465.5 MB in the end (delta: -97.5 MB). Peak memory consumption was 381.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5603]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 161 procedures, 1580 locations, 1 error locations. SAFE Result, 35.7s OverallTime, 15 OverallIterations, 2 TraceHistogramMax, 26.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 34330 SDtfs, 16018 SDslu, 178507 SDs, 0 SdLazy, 3286 SolverSat, 1831 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 21.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 172 GetRequests, 46 SyntacticMatches, 3 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9109occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 2.2s AutomataMinimizationTime, 15 MinimizatonAttempts, 8767 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 1296 NumberOfCodeBlocks, 1296 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1281 ConstructedInterpolants, 0 QuantifiedInterpolants, 201429 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 PerfectInterpolantSequences, 36/36 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...