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 0.1.24-673a906-m [2019-10-02 23:15:41,425 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-02 23:15:41,427 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-02 23:15:41,440 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-02 23:15:41,441 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-02 23:15:41,442 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-02 23:15:41,443 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-02 23:15:41,445 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-02 23:15:41,447 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-02 23:15:41,448 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-02 23:15:41,449 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-02 23:15:41,450 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-02 23:15:41,450 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-02 23:15:41,451 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-02 23:15:41,452 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-02 23:15:41,453 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-02 23:15:41,454 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-02 23:15:41,455 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-02 23:15:41,457 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-02 23:15:41,459 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-02 23:15:41,461 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-02 23:15:41,462 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-02 23:15:41,463 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-02 23:15:41,464 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-02 23:15:41,470 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-02 23:15:41,471 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-02 23:15:41,471 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-02 23:15:41,472 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-02 23:15:41,472 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-02 23:15:41,474 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-02 23:15:41,474 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-02 23:15:41,478 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-02 23:15:41,479 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-02 23:15:41,480 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-02 23:15:41,484 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-02 23:15:41,484 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-02 23:15:41,485 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-02 23:15:41,485 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-02 23:15:41,485 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-02 23:15:41,487 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-02 23:15:41,488 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-02 23:15:41,489 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 [2019-10-02 23:15:41,522 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-02 23:15:41,522 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-02 23:15:41,523 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-02 23:15:41,524 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-02 23:15:41,525 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-02 23:15:41,525 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-02 23:15:41,525 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-02 23:15:41,525 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-02 23:15:41,525 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-02 23:15:41,526 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-02 23:15:41,528 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-02 23:15:41,528 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-02 23:15:41,529 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-02 23:15:41,529 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-02 23:15:41,529 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-02 23:15:41,530 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-02 23:15:41,530 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-02 23:15:41,530 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-02 23:15:41,530 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-02 23:15:41,530 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-02 23:15:41,531 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-02 23:15:41,531 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-02 23:15:41,531 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-02 23:15:41,531 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 23:15:41,532 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-02 23:15:41,532 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-02 23:15:41,532 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-02 23:15:41,532 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-02 23:15:41,532 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-02 23:15:41,533 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-02 23:15:41,565 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-02 23:15:41,579 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-02 23:15:41,583 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-02 23:15:41,585 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-02 23:15:41,585 INFO L275 PluginConnector]: CDTParser initialized [2019-10-02 23:15:41,587 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-commit-tester/m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-2.i [2019-10-02 23:15:41,660 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b3be7217/19afb2dec6d7482ab87669cdee8c1974/FLAGa904d88b6 [2019-10-02 23:15:42,465 INFO L306 CDTParser]: Found 1 translation units. [2019-10-02 23:15:42,467 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-commit-tester/m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-2.i [2019-10-02 23:15:42,526 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b3be7217/19afb2dec6d7482ab87669cdee8c1974/FLAGa904d88b6 [2019-10-02 23:15:43,015 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b3be7217/19afb2dec6d7482ab87669cdee8c1974 [2019-10-02 23:15:43,026 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-02 23:15:43,028 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-02 23:15:43,029 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-02 23:15:43,029 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-02 23:15:43,033 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-02 23:15:43,034 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 11:15:43" (1/1) ... [2019-10-02 23:15:43,038 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66c2719a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:15:43, skipping insertion in model container [2019-10-02 23:15:43,038 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 11:15:43" (1/1) ... [2019-10-02 23:15:43,051 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-02 23:15:43,215 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-02 23:15:44,918 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 23:15:45,022 INFO L188 MainTranslator]: Completed pre-run [2019-10-02 23:15:45,400 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 23:15:45,801 INFO L192 MainTranslator]: Completed translation [2019-10-02 23:15:45,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:15:45 WrapperNode [2019-10-02 23:15:45,803 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-02 23:15:45,804 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-02 23:15:45,804 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-02 23:15:45,805 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-02 23:15:45,823 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:15:45" (1/1) ... [2019-10-02 23:15:45,825 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:15:45" (1/1) ... [2019-10-02 23:15:45,953 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:15:45" (1/1) ... [2019-10-02 23:15:45,954 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:15:45" (1/1) ... [2019-10-02 23:15:46,119 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:15:45" (1/1) ... [2019-10-02 23:15:46,151 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:15:45" (1/1) ... [2019-10-02 23:15:46,191 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:15:45" (1/1) ... [2019-10-02 23:15:46,235 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-02 23:15:46,235 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-02 23:15:46,235 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-02 23:15:46,236 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-02 23:15:46,237 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:15:45" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 23:15:46,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-02 23:15:46,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-02 23:15:46,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~int~X~~gfp_t~0~TO~VOID [2019-10-02 23:15:46,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2019-10-02 23:15:46,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-10-02 23:15:46,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2019-10-02 23:15:46,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~gfp_t~0~TO~$Pointer$ [2019-10-02 23:15:46,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2019-10-02 23:15:46,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~gfp_t~0~TO~int [2019-10-02 23:15:46,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2019-10-02 23:15:46,317 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2019-10-02 23:15:46,317 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2019-10-02 23:15:46,317 INFO L138 BoogieDeclarations]: Found implementation of procedure get_order [2019-10-02 23:15:46,318 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2019-10-02 23:15:46,319 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2019-10-02 23:15:46,319 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2019-10-02 23:15:46,320 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del [2019-10-02 23:15:46,320 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2019-10-02 23:15:46,320 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2019-10-02 23:15:46,321 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2019-10-02 23:15:46,321 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-10-02 23:15:46,321 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2019-10-02 23:15:46,321 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2019-10-02 23:15:46,321 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-10-02 23:15:46,322 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2019-10-02 23:15:46,322 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2019-10-02 23:15:46,323 INFO L138 BoogieDeclarations]: Found implementation of procedure test_tsk_thread_flag [2019-10-02 23:15:46,323 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2019-10-02 23:15:46,323 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemleak_alloc [2019-10-02 23:15:46,323 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_kmalloc [2019-10-02 23:15:46,323 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_index [2019-10-02 23:15:46,324 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_slab [2019-10-02 23:15:46,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-02 23:15:46,324 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-02 23:15:46,324 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_large [2019-10-02 23:15:46,324 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-02 23:15:46,324 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2019-10-02 23:15:46,325 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-10-02 23:15:46,325 INFO L138 BoogieDeclarations]: Found implementation of procedure init_utsname [2019-10-02 23:15:46,325 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2019-10-02 23:15:46,325 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2019-10-02 23:15:46,325 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_enable [2019-10-02 23:15:46,325 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_disable [2019-10-02 23:15:46,325 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_alloc_request [2019-10-02 23:15:46,326 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_free_request [2019-10-02 23:15:46,326 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_queue [2019-10-02 23:15:46,326 INFO L138 BoogieDeclarations]: Found implementation of procedure set_gadget_data [2019-10-02 23:15:46,326 INFO L138 BoogieDeclarations]: Found implementation of procedure get_gadget_data [2019-10-02 23:15:46,326 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_set_selfpowered [2019-10-02 23:15:46,326 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_vbus_draw [2019-10-02 23:15:46,327 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_controller_number [2019-10-02 23:15:46,327 INFO L138 BoogieDeclarations]: Found implementation of procedure utf8_to_utf16le [2019-10-02 23:15:46,327 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_get_string [2019-10-02 23:15:46,327 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_descriptor_fillbuf [2019-10-02 23:15:46,327 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_config_buf [2019-10-02 23:15:46,327 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_copy_descriptors [2019-10-02 23:15:46,327 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_find_endpoint [2019-10-02 23:15:46,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ep_matches [2019-10-02 23:15:46,328 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_autoconfig [2019-10-02 23:15:46,328 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_autoconfig_reset [2019-10-02 23:15:46,328 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_alloc [2019-10-02 23:15:46,328 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_free [2019-10-02 23:15:46,328 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_complete [2019-10-02 23:15:46,329 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_complete [2019-10-02 23:15:46,329 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_open [2019-10-02 23:15:46,329 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_close [2019-10-02 23:15:46,329 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rx_reqs [2019-10-02 23:15:46,329 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_read [2019-10-02 23:15:46,329 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_write [2019-10-02 23:15:46,329 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_fsync [2019-10-02 23:15:46,330 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_poll [2019-10-02 23:15:46,330 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_ioctl [2019-10-02 23:15:46,330 INFO L138 BoogieDeclarations]: Found implementation of procedure set_printer_interface [2019-10-02 23:15:46,330 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_reset_interface [2019-10-02 23:15:46,330 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_set_config [2019-10-02 23:15:46,330 INFO L138 BoogieDeclarations]: Found implementation of procedure config_buf [2019-10-02 23:15:46,331 INFO L138 BoogieDeclarations]: Found implementation of procedure set_interface [2019-10-02 23:15:46,331 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup_complete [2019-10-02 23:15:46,331 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_soft_reset [2019-10-02 23:15:46,331 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup [2019-10-02 23:15:46,331 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_disconnect [2019-10-02 23:15:46,331 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_unbind [2019-10-02 23:15:46,332 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_bind [2019-10-02 23:15:46,332 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2019-10-02 23:15:46,332 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-02 23:15:46,332 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-02 23:15:46,332 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-10-02 23:15:46,332 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-10-02 23:15:46,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_chrdev_region_5 [2019-10-02 23:15:46,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_class_destroy_6 [2019-10-02 23:15:46,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_gadget_register_driver_7 [2019-10-02 23:15:46,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_class_destroy_8 [2019-10-02 23:15:46,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region_9 [2019-10-02 23:15:46,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_gadget_unregister_driver_10 [2019-10-02 23:15:46,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region_11 [2019-10-02 23:15:46,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_class_destroy_12 [2019-10-02 23:15:46,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-02 23:15:46,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-02 23:15:46,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive_int [2019-10-02 23:15:46,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-02 23:15:46,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-02 23:15:46,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-02 23:15:46,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-02 23:15:46,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-02 23:15:46,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_create_class [2019-10-02 23:15:46,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_class [2019-10-02 23:15:46,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_class [2019-10-02 23:15:46,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_chrdev_region [2019-10-02 23:15:46,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region [2019-10-02 23:15:46,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_usb_gadget [2019-10-02 23:15:46,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_usb_gadget [2019-10-02 23:15:46,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-02 23:15:46,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_free_pages [2019-10-02 23:15:46,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-10-02 23:15:46,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2019-10-02 23:15:46,337 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2019-10-02 23:15:46,337 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-10-02 23:15:46,337 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2019-10-02 23:15:46,337 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2019-10-02 23:15:46,337 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-10-02 23:15:46,337 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2019-10-02 23:15:46,337 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2019-10-02 23:15:46,338 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2019-10-02 23:15:46,338 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-10-02 23:15:46,338 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_chrdev_region [2019-10-02 23:15:46,338 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2019-10-02 23:15:46,338 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_del [2019-10-02 23:15:46,338 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_init [2019-10-02 23:15:46,339 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2019-10-02 23:15:46,339 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2019-10-02 23:15:46,339 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-10-02 23:15:46,339 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-10-02 23:15:46,339 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-10-02 23:15:46,339 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2019-10-02 23:15:46,339 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create [2019-10-02 23:15:46,340 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2019-10-02 23:15:46,340 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2019-10-02 23:15:46,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2019-10-02 23:15:46,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2019-10-02 23:15:46,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-02 23:15:46,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-02 23:15:46,341 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2019-10-02 23:15:46,341 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_dereference [2019-10-02 23:15:46,341 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-10-02 23:15:46,341 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2019-10-02 23:15:46,341 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-02 23:15:46,341 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2019-10-02 23:15:46,341 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-02 23:15:46,342 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2019-10-02 23:15:46,342 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2019-10-02 23:15:46,342 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2019-10-02 23:15:46,342 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2019-10-02 23:15:46,342 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_register_driver [2019-10-02 23:15:46,342 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_unregister_driver [2019-10-02 23:15:46,343 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2019-10-02 23:15:46,343 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2019-10-02 23:15:46,343 INFO L138 BoogieDeclarations]: Found implementation of procedure autoremove_wake_function [2019-10-02 23:15:46,343 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-02 23:15:46,343 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-02 23:15:46,343 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-02 23:15:46,343 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-02 23:15:46,344 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-02 23:15:46,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-02 23:15:46,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-02 23:15:46,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-02 23:15:46,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_create_class [2019-10-02 23:15:46,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_class [2019-10-02 23:15:46,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_chrdev_region [2019-10-02 23:15:46,345 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region [2019-10-02 23:15:46,345 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_usb_gadget [2019-10-02 23:15:46,345 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_usb_gadget [2019-10-02 23:15:46,345 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2019-10-02 23:15:46,345 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2019-10-02 23:15:46,345 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2019-10-02 23:15:46,345 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-10-02 23:15:46,346 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2019-10-02 23:15:46,346 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2019-10-02 23:15:46,346 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-02 23:15:46,346 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-10-02 23:15:46,346 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2019-10-02 23:15:46,346 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-02 23:15:46,346 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2019-10-02 23:15:46,346 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2019-10-02 23:15:46,347 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2019-10-02 23:15:46,347 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2019-10-02 23:15:46,347 INFO L130 BoogieDeclarations]: Found specification of procedure get_order [2019-10-02 23:15:46,347 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-10-02 23:15:46,347 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-10-02 23:15:46,347 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2019-10-02 23:15:46,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-02 23:15:46,348 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2019-10-02 23:15:46,348 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2019-10-02 23:15:46,348 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-02 23:15:46,348 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2019-10-02 23:15:46,348 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del [2019-10-02 23:15:46,348 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2019-10-02 23:15:46,348 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2019-10-02 23:15:46,348 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2019-10-02 23:15:46,349 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2019-10-02 23:15:46,349 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_dereference [2019-10-02 23:15:46,349 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-10-02 23:15:46,349 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2019-10-02 23:15:46,349 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2019-10-02 23:15:46,349 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2019-10-02 23:15:46,349 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-10-02 23:15:46,350 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-10-02 23:15:46,350 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2019-10-02 23:15:46,350 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2019-10-02 23:15:46,350 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-10-02 23:15:46,350 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-10-02 23:15:46,350 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2019-10-02 23:15:46,350 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2019-10-02 23:15:46,351 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2019-10-02 23:15:46,351 INFO L130 BoogieDeclarations]: Found specification of procedure autoremove_wake_function [2019-10-02 23:15:46,351 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2019-10-02 23:15:46,351 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2019-10-02 23:15:46,351 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-02 23:15:46,351 INFO L130 BoogieDeclarations]: Found specification of procedure __get_free_pages [2019-10-02 23:15:46,351 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2019-10-02 23:15:46,351 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2019-10-02 23:15:46,352 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2019-10-02 23:15:46,352 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2019-10-02 23:15:46,352 INFO L130 BoogieDeclarations]: Found specification of procedure test_tsk_thread_flag [2019-10-02 23:15:46,352 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2019-10-02 23:15:46,352 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-02 23:15:46,352 INFO L130 BoogieDeclarations]: Found specification of procedure kmemleak_alloc [2019-10-02 23:15:46,352 INFO L130 BoogieDeclarations]: Found specification of procedure trace_kmalloc [2019-10-02 23:15:46,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-02 23:15:46,353 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~int~X~~gfp_t~0~TO~VOID [2019-10-02 23:15:46,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-02 23:15:46,353 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_index [2019-10-02 23:15:46,353 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_slab [2019-10-02 23:15:46,353 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-02 23:15:46,353 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-02 23:15:46,354 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-02 23:15:46,354 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-02 23:15:46,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-02 23:15:46,354 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-02 23:15:46,354 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2019-10-02 23:15:46,354 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_large [2019-10-02 23:15:46,354 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-02 23:15:46,355 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-10-02 23:15:46,355 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2019-10-02 23:15:46,355 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2019-10-02 23:15:46,355 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-10-02 23:15:46,355 INFO L130 BoogieDeclarations]: Found specification of procedure init_utsname [2019-10-02 23:15:46,355 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2019-10-02 23:15:46,356 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_class_destroy_6 [2019-10-02 23:15:46,356 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_class_destroy_8 [2019-10-02 23:15:46,356 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_class_destroy_12 [2019-10-02 23:15:46,356 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-10-02 23:15:46,356 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-10-02 23:15:46,356 INFO L130 BoogieDeclarations]: Found specification of procedure device_create [2019-10-02 23:15:46,356 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2019-10-02 23:15:46,357 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-10-02 23:15:46,357 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2019-10-02 23:15:46,357 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_chrdev_region [2019-10-02 23:15:46,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_chrdev_region_5 [2019-10-02 23:15:46,357 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2019-10-02 23:15:46,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region_9 [2019-10-02 23:15:46,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region_11 [2019-10-02 23:15:46,358 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2019-10-02 23:15:46,358 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2019-10-02 23:15:46,358 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_init [2019-10-02 23:15:46,358 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2019-10-02 23:15:46,358 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_del [2019-10-02 23:15:46,358 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2019-10-02 23:15:46,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-02 23:15:46,359 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_enable [2019-10-02 23:15:46,359 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-10-02 23:15:46,359 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_disable [2019-10-02 23:15:46,359 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2019-10-02 23:15:46,359 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_alloc_request [2019-10-02 23:15:46,359 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~gfp_t~0~TO~$Pointer$ [2019-10-02 23:15:46,359 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_free_request [2019-10-02 23:15:46,360 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2019-10-02 23:15:46,360 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_queue [2019-10-02 23:15:46,360 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~gfp_t~0~TO~int [2019-10-02 23:15:46,360 INFO L130 BoogieDeclarations]: Found specification of procedure set_gadget_data [2019-10-02 23:15:46,360 INFO L130 BoogieDeclarations]: Found specification of procedure get_gadget_data [2019-10-02 23:15:46,360 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_set_selfpowered [2019-10-02 23:15:46,360 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2019-10-02 23:15:46,361 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_vbus_draw [2019-10-02 23:15:46,361 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_register_driver [2019-10-02 23:15:46,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_gadget_register_driver_7 [2019-10-02 23:15:46,361 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_unregister_driver [2019-10-02 23:15:46,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_gadget_unregister_driver_10 [2019-10-02 23:15:46,361 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_get_string [2019-10-02 23:15:46,361 INFO L130 BoogieDeclarations]: Found specification of procedure usb_descriptor_fillbuf [2019-10-02 23:15:46,362 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_config_buf [2019-10-02 23:15:46,362 INFO L130 BoogieDeclarations]: Found specification of procedure usb_copy_descriptors [2019-10-02 23:15:46,362 INFO L130 BoogieDeclarations]: Found specification of procedure usb_find_endpoint [2019-10-02 23:15:46,362 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_autoconfig [2019-10-02 23:15:46,362 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_autoconfig_reset [2019-10-02 23:15:46,362 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_controller_number [2019-10-02 23:15:46,362 INFO L130 BoogieDeclarations]: Found specification of procedure utf8_to_utf16le [2019-10-02 23:15:46,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-02 23:15:46,363 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-02 23:15:46,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-02 23:15:46,363 INFO L130 BoogieDeclarations]: Found specification of procedure ep_matches [2019-10-02 23:15:46,363 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_alloc [2019-10-02 23:15:46,363 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_free [2019-10-02 23:15:46,363 INFO L130 BoogieDeclarations]: Found specification of procedure rx_complete [2019-10-02 23:15:46,364 INFO L130 BoogieDeclarations]: Found specification of procedure tx_complete [2019-10-02 23:15:46,364 INFO L130 BoogieDeclarations]: Found specification of procedure printer_open [2019-10-02 23:15:46,364 INFO L130 BoogieDeclarations]: Found specification of procedure printer_close [2019-10-02 23:15:46,364 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rx_reqs [2019-10-02 23:15:46,364 INFO L130 BoogieDeclarations]: Found specification of procedure printer_read [2019-10-02 23:15:46,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-02 23:15:46,364 INFO L130 BoogieDeclarations]: Found specification of procedure printer_write [2019-10-02 23:15:46,365 INFO L130 BoogieDeclarations]: Found specification of procedure printer_fsync [2019-10-02 23:15:46,365 INFO L130 BoogieDeclarations]: Found specification of procedure printer_poll [2019-10-02 23:15:46,365 INFO L130 BoogieDeclarations]: Found specification of procedure printer_ioctl [2019-10-02 23:15:46,365 INFO L130 BoogieDeclarations]: Found specification of procedure set_printer_interface [2019-10-02 23:15:46,365 INFO L130 BoogieDeclarations]: Found specification of procedure printer_reset_interface [2019-10-02 23:15:46,365 INFO L130 BoogieDeclarations]: Found specification of procedure printer_set_config [2019-10-02 23:15:46,365 INFO L130 BoogieDeclarations]: Found specification of procedure config_buf [2019-10-02 23:15:46,366 INFO L130 BoogieDeclarations]: Found specification of procedure set_interface [2019-10-02 23:15:46,366 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup_complete [2019-10-02 23:15:46,366 INFO L130 BoogieDeclarations]: Found specification of procedure printer_soft_reset [2019-10-02 23:15:46,366 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup [2019-10-02 23:15:46,366 INFO L130 BoogieDeclarations]: Found specification of procedure printer_disconnect [2019-10-02 23:15:46,366 INFO L130 BoogieDeclarations]: Found specification of procedure printer_unbind [2019-10-02 23:15:46,366 INFO L130 BoogieDeclarations]: Found specification of procedure printer_bind [2019-10-02 23:15:46,366 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-10-02 23:15:46,367 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-02 23:15:46,367 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-02 23:15:46,367 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2019-10-02 23:15:46,367 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-02 23:15:46,367 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2019-10-02 23:15:46,367 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-02 23:15:46,367 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-02 23:15:46,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-02 23:15:46,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-02 23:15:46,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive_int [2019-10-02 23:15:46,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-02 23:15:46,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-02 23:15:46,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_class [2019-10-02 23:15:46,368 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-02 23:15:46,368 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-02 23:15:46,369 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-02 23:15:46,369 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-02 23:15:46,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-02 23:15:46,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-02 23:15:46,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-02 23:15:46,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-02 23:15:46,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-02 23:15:46,370 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-02 23:15:46,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-02 23:15:46,370 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-02 23:15:47,622 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-02 23:15:55,295 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-02 23:15:55,296 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-02 23:15:55,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 11:15:55 BoogieIcfgContainer [2019-10-02 23:15:55,299 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-02 23:15:55,300 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-02 23:15:55,300 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-02 23:15:55,304 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-02 23:15:55,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.10 11:15:43" (1/3) ... [2019-10-02 23:15:55,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bb042d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 11:15:55, skipping insertion in model container [2019-10-02 23:15:55,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:15:45" (2/3) ... [2019-10-02 23:15:55,306 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bb042d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 11:15:55, skipping insertion in model container [2019-10-02 23:15:55,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 11:15:55" (3/3) ... [2019-10-02 23:15:55,308 INFO L109 eAbstractionObserver]: Analyzing ICFG m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-2.i [2019-10-02 23:15:55,321 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-02 23:15:55,335 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-02 23:15:55,354 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-02 23:15:55,385 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-02 23:15:55,386 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-02 23:15:55,386 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-02 23:15:55,387 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-02 23:15:55,387 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-02 23:15:55,387 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-02 23:15:55,387 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-02 23:15:55,387 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-02 23:15:55,441 INFO L276 IsEmpty]: Start isEmpty. Operand 1542 states. [2019-10-02 23:15:55,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-10-02 23:15:55,452 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 23:15:55,453 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 23:15:55,455 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 23:15:55,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 23:15:55,461 INFO L82 PathProgramCache]: Analyzing trace with hash 720613046, now seen corresponding path program 1 times [2019-10-02 23:15:55,464 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 23:15:55,555 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:15:55,556 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 23:15:55,556 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:15:55,556 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 23:15:56,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 23:15:56,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 23:15:56,377 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 23:15:56,377 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 23:15:56,377 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 23:15:56,383 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 23:15:56,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 23:15:56,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 23:15:56,403 INFO L87 Difference]: Start difference. First operand 1542 states. Second operand 3 states. [2019-10-02 23:15:56,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 23:15:56,694 INFO L93 Difference]: Finished difference Result 2672 states and 3667 transitions. [2019-10-02 23:15:56,695 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 23:15:56,707 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2019-10-02 23:15:56,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 23:15:56,763 INFO L225 Difference]: With dead ends: 2672 [2019-10-02 23:15:56,763 INFO L226 Difference]: Without dead ends: 2662 [2019-10-02 23:15:56,765 INFO L640 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 [2019-10-02 23:15:56,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2662 states. [2019-10-02 23:15:57,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2662 to 2657. [2019-10-02 23:15:57,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2657 states. [2019-10-02 23:15:57,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2657 states to 2657 states and 3650 transitions. [2019-10-02 23:15:57,052 INFO L78 Accepts]: Start accepts. Automaton has 2657 states and 3650 transitions. Word has length 29 [2019-10-02 23:15:57,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 23:15:57,052 INFO L475 AbstractCegarLoop]: Abstraction has 2657 states and 3650 transitions. [2019-10-02 23:15:57,052 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 23:15:57,053 INFO L276 IsEmpty]: Start isEmpty. Operand 2657 states and 3650 transitions. [2019-10-02 23:15:57,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-02 23:15:57,068 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 23:15:57,069 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 23:15:57,069 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 23:15:57,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 23:15:57,070 INFO L82 PathProgramCache]: Analyzing trace with hash 861919949, now seen corresponding path program 1 times [2019-10-02 23:15:57,070 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 23:15:57,096 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:15:57,097 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 23:15:57,097 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:15:57,097 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 23:15:57,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 23:15:57,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 23:15:57,491 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 23:15:57,492 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 23:15:57,492 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 23:15:57,494 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 23:15:57,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 23:15:57,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 23:15:57,495 INFO L87 Difference]: Start difference. First operand 2657 states and 3650 transitions. Second operand 3 states. [2019-10-02 23:15:57,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 23:15:57,619 INFO L93 Difference]: Finished difference Result 5261 states and 7231 transitions. [2019-10-02 23:15:57,620 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 23:15:57,620 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2019-10-02 23:15:57,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 23:15:57,663 INFO L225 Difference]: With dead ends: 5261 [2019-10-02 23:15:57,664 INFO L226 Difference]: Without dead ends: 5261 [2019-10-02 23:15:57,665 INFO L640 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 [2019-10-02 23:15:57,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5261 states. [2019-10-02 23:15:57,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5261 to 5245. [2019-10-02 23:15:57,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5245 states. [2019-10-02 23:15:57,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5245 states to 5245 states and 7216 transitions. [2019-10-02 23:15:57,971 INFO L78 Accepts]: Start accepts. Automaton has 5245 states and 7216 transitions. Word has length 30 [2019-10-02 23:15:57,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 23:15:57,972 INFO L475 AbstractCegarLoop]: Abstraction has 5245 states and 7216 transitions. [2019-10-02 23:15:57,972 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 23:15:57,972 INFO L276 IsEmpty]: Start isEmpty. Operand 5245 states and 7216 transitions. [2019-10-02 23:15:57,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-10-02 23:15:57,975 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 23:15:57,975 INFO L411 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] [2019-10-02 23:15:57,976 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 23:15:57,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 23:15:57,976 INFO L82 PathProgramCache]: Analyzing trace with hash -183738392, now seen corresponding path program 1 times [2019-10-02 23:15:57,976 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 23:15:57,989 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:15:57,989 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 23:15:57,989 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:15:57,989 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 23:15:58,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 23:15:58,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 23:15:58,419 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 23:15:58,419 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-02 23:15:58,419 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 23:15:58,420 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-02 23:15:58,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-02 23:15:58,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-02 23:15:58,420 INFO L87 Difference]: Start difference. First operand 5245 states and 7216 transitions. Second operand 4 states. [2019-10-02 23:16:08,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 23:16:08,302 INFO L93 Difference]: Finished difference Result 10373 states and 14291 transitions. [2019-10-02 23:16:08,303 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-02 23:16:08,303 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 60 [2019-10-02 23:16:08,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 23:16:08,384 INFO L225 Difference]: With dead ends: 10373 [2019-10-02 23:16:08,384 INFO L226 Difference]: Without dead ends: 10364 [2019-10-02 23:16:08,385 INFO L640 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 [2019-10-02 23:16:08,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10364 states. [2019-10-02 23:16:08,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10364 to 9109. [2019-10-02 23:16:08,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9109 states. [2019-10-02 23:16:08,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9109 states to 9109 states and 12543 transitions. [2019-10-02 23:16:08,877 INFO L78 Accepts]: Start accepts. Automaton has 9109 states and 12543 transitions. Word has length 60 [2019-10-02 23:16:08,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 23:16:08,879 INFO L475 AbstractCegarLoop]: Abstraction has 9109 states and 12543 transitions. [2019-10-02 23:16:08,880 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-02 23:16:08,880 INFO L276 IsEmpty]: Start isEmpty. Operand 9109 states and 12543 transitions. [2019-10-02 23:16:08,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-10-02 23:16:08,893 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 23:16:08,894 INFO L411 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] [2019-10-02 23:16:08,894 INFO L418 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 23:16:08,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 23:16:08,895 INFO L82 PathProgramCache]: Analyzing trace with hash -1242276972, now seen corresponding path program 1 times [2019-10-02 23:16:08,895 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 23:16:08,909 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:16:08,909 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 23:16:08,910 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:16:08,910 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 23:16:09,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 23:16:10,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 23:16:10,077 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 23:16:10,077 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-02 23:16:10,077 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 23:16:10,078 INFO L454 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-02 23:16:10,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-02 23:16:10,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2019-10-02 23:16:10,079 INFO L87 Difference]: Start difference. First operand 9109 states and 12543 transitions. Second operand 12 states. [2019-10-02 23:16:13,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 23:16:13,762 INFO L93 Difference]: Finished difference Result 11589 states and 15983 transitions. [2019-10-02 23:16:13,763 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-02 23:16:13,763 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 62 [2019-10-02 23:16:13,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 23:16:13,848 INFO L225 Difference]: With dead ends: 11589 [2019-10-02 23:16:13,848 INFO L226 Difference]: Without dead ends: 11589 [2019-10-02 23:16:13,850 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=63, Invalid=357, Unknown=0, NotChecked=0, Total=420 [2019-10-02 23:16:13,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11589 states. [2019-10-02 23:16:14,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11589 to 7870. [2019-10-02 23:16:14,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7870 states. [2019-10-02 23:16:14,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7870 states to 7870 states and 10818 transitions. [2019-10-02 23:16:14,166 INFO L78 Accepts]: Start accepts. Automaton has 7870 states and 10818 transitions. Word has length 62 [2019-10-02 23:16:14,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 23:16:14,166 INFO L475 AbstractCegarLoop]: Abstraction has 7870 states and 10818 transitions. [2019-10-02 23:16:14,167 INFO L476 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-02 23:16:14,167 INFO L276 IsEmpty]: Start isEmpty. Operand 7870 states and 10818 transitions. [2019-10-02 23:16:14,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-10-02 23:16:14,171 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 23:16:14,172 INFO L411 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] [2019-10-02 23:16:14,175 INFO L418 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 23:16:14,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 23:16:14,175 INFO L82 PathProgramCache]: Analyzing trace with hash 409253441, now seen corresponding path program 1 times [2019-10-02 23:16:14,175 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 23:16:14,187 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:16:14,187 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 23:16:14,187 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:16:14,187 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 23:16:14,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 23:16:14,898 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-02 23:16:14,898 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 23:16:14,899 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-10-02 23:16:14,899 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 23:16:14,900 INFO L454 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-02 23:16:14,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-02 23:16:14,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2019-10-02 23:16:14,901 INFO L87 Difference]: Start difference. First operand 7870 states and 10818 transitions. Second operand 14 states. [2019-10-02 23:16:18,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 23:16:18,138 INFO L93 Difference]: Finished difference Result 10375 states and 14285 transitions. [2019-10-02 23:16:18,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-02 23:16:18,139 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 77 [2019-10-02 23:16:18,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 23:16:18,201 INFO L225 Difference]: With dead ends: 10375 [2019-10-02 23:16:18,202 INFO L226 Difference]: Without dead ends: 10361 [2019-10-02 23:16:18,202 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=441, Unknown=0, NotChecked=0, Total=506 [2019-10-02 23:16:18,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10361 states. [2019-10-02 23:16:18,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10361 to 7865. [2019-10-02 23:16:18,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7865 states. [2019-10-02 23:16:18,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7865 states to 7865 states and 10810 transitions. [2019-10-02 23:16:18,469 INFO L78 Accepts]: Start accepts. Automaton has 7865 states and 10810 transitions. Word has length 77 [2019-10-02 23:16:18,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 23:16:18,469 INFO L475 AbstractCegarLoop]: Abstraction has 7865 states and 10810 transitions. [2019-10-02 23:16:18,469 INFO L476 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-02 23:16:18,469 INFO L276 IsEmpty]: Start isEmpty. Operand 7865 states and 10810 transitions. [2019-10-02 23:16:18,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-10-02 23:16:18,471 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 23:16:18,471 INFO L411 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] [2019-10-02 23:16:18,471 INFO L418 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 23:16:18,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 23:16:18,472 INFO L82 PathProgramCache]: Analyzing trace with hash 109892250, now seen corresponding path program 1 times [2019-10-02 23:16:18,472 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 23:16:18,481 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:16:18,482 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 23:16:18,482 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:16:18,482 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 23:16:18,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 23:16:19,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 23:16:19,045 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 23:16:19,046 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-02 23:16:19,046 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 23:16:19,046 INFO L454 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-02 23:16:19,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-02 23:16:19,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2019-10-02 23:16:19,047 INFO L87 Difference]: Start difference. First operand 7865 states and 10810 transitions. Second operand 12 states. [2019-10-02 23:16:22,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 23:16:22,057 INFO L93 Difference]: Finished difference Result 5243 states and 7205 transitions. [2019-10-02 23:16:22,057 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-02 23:16:22,057 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 77 [2019-10-02 23:16:22,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 23:16:22,081 INFO L225 Difference]: With dead ends: 5243 [2019-10-02 23:16:22,082 INFO L226 Difference]: Without dead ends: 5228 [2019-10-02 23:16:22,082 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=63, Invalid=357, Unknown=0, NotChecked=0, Total=420 [2019-10-02 23:16:22,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5228 states. [2019-10-02 23:16:22,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5228 to 5228. [2019-10-02 23:16:22,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5228 states. [2019-10-02 23:16:22,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5228 states to 5228 states and 7190 transitions. [2019-10-02 23:16:22,230 INFO L78 Accepts]: Start accepts. Automaton has 5228 states and 7190 transitions. Word has length 77 [2019-10-02 23:16:22,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 23:16:22,230 INFO L475 AbstractCegarLoop]: Abstraction has 5228 states and 7190 transitions. [2019-10-02 23:16:22,231 INFO L476 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-02 23:16:22,231 INFO L276 IsEmpty]: Start isEmpty. Operand 5228 states and 7190 transitions. [2019-10-02 23:16:22,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2019-10-02 23:16:22,232 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 23:16:22,232 INFO L411 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] [2019-10-02 23:16:22,232 INFO L418 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 23:16:22,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 23:16:22,233 INFO L82 PathProgramCache]: Analyzing trace with hash 1504060568, now seen corresponding path program 1 times [2019-10-02 23:16:22,233 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 23:16:22,243 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:16:22,243 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 23:16:22,243 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:16:22,244 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 23:16:22,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 23:16:22,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 23:16:22,555 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 23:16:22,555 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 23:16:22,555 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 23:16:22,556 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 23:16:22,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 23:16:22,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 23:16:22,557 INFO L87 Difference]: Start difference. First operand 5228 states and 7190 transitions. Second operand 3 states. [2019-10-02 23:16:25,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 23:16:25,212 INFO L93 Difference]: Finished difference Result 6459 states and 8895 transitions. [2019-10-02 23:16:25,212 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 23:16:25,212 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 80 [2019-10-02 23:16:25,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 23:16:25,242 INFO L225 Difference]: With dead ends: 6459 [2019-10-02 23:16:25,243 INFO L226 Difference]: Without dead ends: 6449 [2019-10-02 23:16:25,243 INFO L640 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 [2019-10-02 23:16:25,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6449 states. [2019-10-02 23:16:25,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6449 to 3954. [2019-10-02 23:16:25,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3954 states. [2019-10-02 23:16:25,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3954 states to 3954 states and 5424 transitions. [2019-10-02 23:16:25,382 INFO L78 Accepts]: Start accepts. Automaton has 3954 states and 5424 transitions. Word has length 80 [2019-10-02 23:16:25,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 23:16:25,383 INFO L475 AbstractCegarLoop]: Abstraction has 3954 states and 5424 transitions. [2019-10-02 23:16:25,383 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 23:16:25,383 INFO L276 IsEmpty]: Start isEmpty. Operand 3954 states and 5424 transitions. [2019-10-02 23:16:25,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2019-10-02 23:16:25,385 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 23:16:25,385 INFO L411 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] [2019-10-02 23:16:25,385 INFO L418 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 23:16:25,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 23:16:25,386 INFO L82 PathProgramCache]: Analyzing trace with hash 556862832, now seen corresponding path program 1 times [2019-10-02 23:16:25,386 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 23:16:25,395 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:16:25,395 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 23:16:25,396 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:16:25,396 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 23:16:25,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 23:16:25,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 23:16:25,743 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 23:16:25,743 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-02 23:16:25,744 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 23:16:25,746 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-02 23:16:25,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-02 23:16:25,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-02 23:16:25,747 INFO L87 Difference]: Start difference. First operand 3954 states and 5424 transitions. Second operand 8 states. [2019-10-02 23:16:25,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 23:16:25,876 INFO L93 Difference]: Finished difference Result 3939 states and 5405 transitions. [2019-10-02 23:16:25,876 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-02 23:16:25,877 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 96 [2019-10-02 23:16:25,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 23:16:25,894 INFO L225 Difference]: With dead ends: 3939 [2019-10-02 23:16:25,895 INFO L226 Difference]: Without dead ends: 3939 [2019-10-02 23:16:25,895 INFO L640 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 [2019-10-02 23:16:25,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3939 states. [2019-10-02 23:16:25,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3939 to 3939. [2019-10-02 23:16:25,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3939 states. [2019-10-02 23:16:25,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3939 states to 3939 states and 5405 transitions. [2019-10-02 23:16:25,997 INFO L78 Accepts]: Start accepts. Automaton has 3939 states and 5405 transitions. Word has length 96 [2019-10-02 23:16:25,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 23:16:25,997 INFO L475 AbstractCegarLoop]: Abstraction has 3939 states and 5405 transitions. [2019-10-02 23:16:25,997 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-02 23:16:25,998 INFO L276 IsEmpty]: Start isEmpty. Operand 3939 states and 5405 transitions. [2019-10-02 23:16:26,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-10-02 23:16:26,001 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 23:16:26,001 INFO L411 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] [2019-10-02 23:16:26,002 INFO L418 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 23:16:26,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 23:16:26,002 INFO L82 PathProgramCache]: Analyzing trace with hash -594444368, now seen corresponding path program 1 times [2019-10-02 23:16:26,002 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 23:16:26,012 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:16:26,012 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 23:16:26,013 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:16:26,013 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 23:16:26,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 23:16:26,309 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-02 23:16:26,310 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 23:16:26,310 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-02 23:16:26,310 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 23:16:26,311 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-02 23:16:26,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-02 23:16:26,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-02 23:16:26,311 INFO L87 Difference]: Start difference. First operand 3939 states and 5405 transitions. Second operand 8 states. [2019-10-02 23:16:26,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 23:16:26,420 INFO L93 Difference]: Finished difference Result 2669 states and 3642 transitions. [2019-10-02 23:16:26,420 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-02 23:16:26,420 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 103 [2019-10-02 23:16:26,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 23:16:26,435 INFO L225 Difference]: With dead ends: 2669 [2019-10-02 23:16:26,435 INFO L226 Difference]: Without dead ends: 2669 [2019-10-02 23:16:26,435 INFO L640 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 [2019-10-02 23:16:26,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2669 states. [2019-10-02 23:16:26,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2669 to 2669. [2019-10-02 23:16:26,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2669 states. [2019-10-02 23:16:26,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2669 states to 2669 states and 3642 transitions. [2019-10-02 23:16:26,509 INFO L78 Accepts]: Start accepts. Automaton has 2669 states and 3642 transitions. Word has length 103 [2019-10-02 23:16:26,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 23:16:26,511 INFO L475 AbstractCegarLoop]: Abstraction has 2669 states and 3642 transitions. [2019-10-02 23:16:26,511 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-02 23:16:26,512 INFO L276 IsEmpty]: Start isEmpty. Operand 2669 states and 3642 transitions. [2019-10-02 23:16:26,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2019-10-02 23:16:26,515 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 23:16:26,515 INFO L411 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] [2019-10-02 23:16:26,515 INFO L418 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 23:16:26,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 23:16:26,516 INFO L82 PathProgramCache]: Analyzing trace with hash 1992954746, now seen corresponding path program 1 times [2019-10-02 23:16:26,516 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 23:16:26,528 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:16:26,528 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 23:16:26,528 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:16:26,528 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 23:16:26,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 23:16:26,845 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-02 23:16:26,846 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 23:16:26,846 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-02 23:16:26,846 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 23:16:26,847 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-02 23:16:26,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-02 23:16:26,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-02 23:16:26,847 INFO L87 Difference]: Start difference. First operand 2669 states and 3642 transitions. Second operand 8 states. [2019-10-02 23:16:26,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 23:16:26,938 INFO L93 Difference]: Finished difference Result 2664 states and 3635 transitions. [2019-10-02 23:16:26,939 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-02 23:16:26,939 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 106 [2019-10-02 23:16:26,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 23:16:26,950 INFO L225 Difference]: With dead ends: 2664 [2019-10-02 23:16:26,950 INFO L226 Difference]: Without dead ends: 2664 [2019-10-02 23:16:26,951 INFO L640 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 [2019-10-02 23:16:26,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2664 states. [2019-10-02 23:16:27,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2664 to 2664. [2019-10-02 23:16:27,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2664 states. [2019-10-02 23:16:27,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2664 states to 2664 states and 3635 transitions. [2019-10-02 23:16:27,015 INFO L78 Accepts]: Start accepts. Automaton has 2664 states and 3635 transitions. Word has length 106 [2019-10-02 23:16:27,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 23:16:27,015 INFO L475 AbstractCegarLoop]: Abstraction has 2664 states and 3635 transitions. [2019-10-02 23:16:27,016 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-02 23:16:27,016 INFO L276 IsEmpty]: Start isEmpty. Operand 2664 states and 3635 transitions. [2019-10-02 23:16:27,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2019-10-02 23:16:27,022 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 23:16:27,023 INFO L411 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] [2019-10-02 23:16:27,023 INFO L418 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 23:16:27,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 23:16:27,024 INFO L82 PathProgramCache]: Analyzing trace with hash 14046403, now seen corresponding path program 1 times [2019-10-02 23:16:27,024 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 23:16:27,032 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:16:27,032 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 23:16:27,032 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:16:27,032 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 23:16:27,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 23:16:27,354 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-02 23:16:27,354 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 23:16:27,354 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-02 23:16:27,355 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 23:16:27,355 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-02 23:16:27,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-02 23:16:27,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-02 23:16:27,356 INFO L87 Difference]: Start difference. First operand 2664 states and 3635 transitions. Second operand 11 states. [2019-10-02 23:16:27,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 23:16:27,492 INFO L93 Difference]: Finished difference Result 1434 states and 1923 transitions. [2019-10-02 23:16:27,493 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-02 23:16:27,493 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 110 [2019-10-02 23:16:27,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 23:16:27,500 INFO L225 Difference]: With dead ends: 1434 [2019-10-02 23:16:27,500 INFO L226 Difference]: Without dead ends: 1400 [2019-10-02 23:16:27,501 INFO L640 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 [2019-10-02 23:16:27,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1400 states. [2019-10-02 23:16:27,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1400 to 1398. [2019-10-02 23:16:27,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1398 states. [2019-10-02 23:16:27,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1398 states to 1398 states and 1886 transitions. [2019-10-02 23:16:27,599 INFO L78 Accepts]: Start accepts. Automaton has 1398 states and 1886 transitions. Word has length 110 [2019-10-02 23:16:27,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 23:16:27,600 INFO L475 AbstractCegarLoop]: Abstraction has 1398 states and 1886 transitions. [2019-10-02 23:16:27,600 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-02 23:16:27,600 INFO L276 IsEmpty]: Start isEmpty. Operand 1398 states and 1886 transitions. [2019-10-02 23:16:27,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-10-02 23:16:27,601 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 23:16:27,601 INFO L411 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] [2019-10-02 23:16:27,602 INFO L418 AbstractCegarLoop]: === Iteration 12 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 23:16:27,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 23:16:27,602 INFO L82 PathProgramCache]: Analyzing trace with hash 1859144313, now seen corresponding path program 1 times [2019-10-02 23:16:27,602 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 23:16:27,612 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:16:27,613 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 23:16:27,613 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:16:27,613 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 23:16:27,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 23:16:27,920 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-02 23:16:27,921 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 23:16:27,921 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-02 23:16:27,921 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 23:16:27,921 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-02 23:16:27,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-02 23:16:27,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-02 23:16:27,923 INFO L87 Difference]: Start difference. First operand 1398 states and 1886 transitions. Second operand 8 states. [2019-10-02 23:16:28,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 23:16:28,019 INFO L93 Difference]: Finished difference Result 1389 states and 1873 transitions. [2019-10-02 23:16:28,019 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-02 23:16:28,020 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 109 [2019-10-02 23:16:28,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 23:16:28,026 INFO L225 Difference]: With dead ends: 1389 [2019-10-02 23:16:28,027 INFO L226 Difference]: Without dead ends: 1389 [2019-10-02 23:16:28,027 INFO L640 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 [2019-10-02 23:16:28,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1389 states. [2019-10-02 23:16:28,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1389 to 1389. [2019-10-02 23:16:28,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1389 states. [2019-10-02 23:16:28,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1389 states to 1389 states and 1873 transitions. [2019-10-02 23:16:28,059 INFO L78 Accepts]: Start accepts. Automaton has 1389 states and 1873 transitions. Word has length 109 [2019-10-02 23:16:28,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 23:16:28,059 INFO L475 AbstractCegarLoop]: Abstraction has 1389 states and 1873 transitions. [2019-10-02 23:16:28,059 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-02 23:16:28,060 INFO L276 IsEmpty]: Start isEmpty. Operand 1389 states and 1873 transitions. [2019-10-02 23:16:28,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-10-02 23:16:28,061 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 23:16:28,061 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 23:16:28,061 INFO L418 AbstractCegarLoop]: === Iteration 13 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 23:16:28,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 23:16:28,062 INFO L82 PathProgramCache]: Analyzing trace with hash 1360408703, now seen corresponding path program 1 times [2019-10-02 23:16:28,062 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 23:16:28,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:16:28,072 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 23:16:28,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:16:28,072 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 23:16:28,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 23:16:28,407 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-02 23:16:28,408 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 23:16:28,408 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-02 23:16:28,408 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 23:16:28,409 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-02 23:16:28,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-02 23:16:28,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-02 23:16:28,410 INFO L87 Difference]: Start difference. First operand 1389 states and 1873 transitions. Second operand 11 states. [2019-10-02 23:16:28,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 23:16:28,581 INFO L93 Difference]: Finished difference Result 1386 states and 1869 transitions. [2019-10-02 23:16:28,582 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-02 23:16:28,582 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 108 [2019-10-02 23:16:28,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 23:16:28,590 INFO L225 Difference]: With dead ends: 1386 [2019-10-02 23:16:28,590 INFO L226 Difference]: Without dead ends: 1386 [2019-10-02 23:16:28,591 INFO L640 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 [2019-10-02 23:16:28,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1386 states. [2019-10-02 23:16:28,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1386 to 1386. [2019-10-02 23:16:28,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1386 states. [2019-10-02 23:16:28,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1386 states to 1386 states and 1869 transitions. [2019-10-02 23:16:28,622 INFO L78 Accepts]: Start accepts. Automaton has 1386 states and 1869 transitions. Word has length 108 [2019-10-02 23:16:28,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 23:16:28,623 INFO L475 AbstractCegarLoop]: Abstraction has 1386 states and 1869 transitions. [2019-10-02 23:16:28,623 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-02 23:16:28,623 INFO L276 IsEmpty]: Start isEmpty. Operand 1386 states and 1869 transitions. [2019-10-02 23:16:28,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2019-10-02 23:16:28,625 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 23:16:28,625 INFO L411 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] [2019-10-02 23:16:28,626 INFO L418 AbstractCegarLoop]: === Iteration 14 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 23:16:28,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 23:16:28,626 INFO L82 PathProgramCache]: Analyzing trace with hash -780573357, now seen corresponding path program 1 times [2019-10-02 23:16:28,627 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 23:16:28,635 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:16:28,636 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 23:16:28,636 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:16:28,636 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 23:16:28,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 23:16:28,911 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-02 23:16:28,911 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 23:16:28,911 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 23:16:28,911 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 23:16:28,912 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 23:16:28,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 23:16:28,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 23:16:28,913 INFO L87 Difference]: Start difference. First operand 1386 states and 1869 transitions. Second operand 3 states. [2019-10-02 23:16:31,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 23:16:31,387 INFO L93 Difference]: Finished difference Result 1385 states and 1867 transitions. [2019-10-02 23:16:31,388 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 23:16:31,388 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 123 [2019-10-02 23:16:31,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 23:16:31,396 INFO L225 Difference]: With dead ends: 1385 [2019-10-02 23:16:31,396 INFO L226 Difference]: Without dead ends: 1337 [2019-10-02 23:16:31,397 INFO L640 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 [2019-10-02 23:16:31,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1337 states. [2019-10-02 23:16:31,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1337 to 1337. [2019-10-02 23:16:31,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1337 states. [2019-10-02 23:16:31,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1337 states to 1337 states and 1817 transitions. [2019-10-02 23:16:31,425 INFO L78 Accepts]: Start accepts. Automaton has 1337 states and 1817 transitions. Word has length 123 [2019-10-02 23:16:31,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 23:16:31,426 INFO L475 AbstractCegarLoop]: Abstraction has 1337 states and 1817 transitions. [2019-10-02 23:16:31,426 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 23:16:31,426 INFO L276 IsEmpty]: Start isEmpty. Operand 1337 states and 1817 transitions. [2019-10-02 23:16:31,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2019-10-02 23:16:31,428 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 23:16:31,428 INFO L411 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] [2019-10-02 23:16:31,428 INFO L418 AbstractCegarLoop]: === Iteration 15 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 23:16:31,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 23:16:31,429 INFO L82 PathProgramCache]: Analyzing trace with hash -994404246, now seen corresponding path program 1 times [2019-10-02 23:16:31,429 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 23:16:31,437 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:16:31,437 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 23:16:31,437 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:16:31,438 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 23:16:31,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 23:16:31,736 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-10-02 23:16:31,737 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 23:16:31,737 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 23:16:31,737 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 23:16:31,738 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 23:16:31,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 23:16:31,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 23:16:31,739 INFO L87 Difference]: Start difference. First operand 1337 states and 1817 transitions. Second operand 3 states. [2019-10-02 23:16:34,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 23:16:34,274 INFO L93 Difference]: Finished difference Result 1334 states and 1814 transitions. [2019-10-02 23:16:34,274 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 23:16:34,275 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2019-10-02 23:16:34,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 23:16:34,275 INFO L225 Difference]: With dead ends: 1334 [2019-10-02 23:16:34,275 INFO L226 Difference]: Without dead ends: 0 [2019-10-02 23:16:34,278 INFO L640 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 [2019-10-02 23:16:34,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-02 23:16:34,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-02 23:16:34,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-02 23:16:34,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-02 23:16:34,279 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 126 [2019-10-02 23:16:34,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 23:16:34,279 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-02 23:16:34,279 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 23:16:34,280 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-02 23:16:34,280 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-02 23:16:34,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.10 11:16:34 BoogieIcfgContainer [2019-10-02 23:16:34,286 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-02 23:16:34,290 INFO L168 Benchmark]: Toolchain (without parser) took 51260.55 ms. Allocated memory was 140.5 MB in the beginning and 963.1 MB in the end (delta: 822.6 MB). Free memory was 80.2 MB in the beginning and 331.3 MB in the end (delta: -251.1 MB). Peak memory consumption was 571.5 MB. Max. memory is 7.1 GB. [2019-10-02 23:16:34,291 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 140.5 MB. Free memory is still 106.1 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-02 23:16:34,293 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2774.98 ms. Allocated memory was 140.5 MB in the beginning and 259.0 MB in the end (delta: 118.5 MB). Free memory was 79.8 MB in the beginning and 191.8 MB in the end (delta: -111.9 MB). Peak memory consumption was 107.4 MB. Max. memory is 7.1 GB. [2019-10-02 23:16:34,298 INFO L168 Benchmark]: Boogie Preprocessor took 430.60 ms. Allocated memory is still 259.0 MB. Free memory was 191.8 MB in the beginning and 159.7 MB in the end (delta: 32.0 MB). Peak memory consumption was 32.0 MB. Max. memory is 7.1 GB. [2019-10-02 23:16:34,299 INFO L168 Benchmark]: RCFGBuilder took 9063.41 ms. Allocated memory was 259.0 MB in the beginning and 525.3 MB in the end (delta: 266.3 MB). Free memory was 159.7 MB in the beginning and 372.1 MB in the end (delta: -212.3 MB). Peak memory consumption was 311.2 MB. Max. memory is 7.1 GB. [2019-10-02 23:16:34,301 INFO L168 Benchmark]: TraceAbstraction took 38986.25 ms. Allocated memory was 525.3 MB in the beginning and 963.1 MB in the end (delta: 437.8 MB). Free memory was 372.1 MB in the beginning and 331.3 MB in the end (delta: 40.7 MB). Peak memory consumption was 478.5 MB. Max. memory is 7.1 GB. [2019-10-02 23:16:34,309 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 140.5 MB. Free memory is still 106.1 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2774.98 ms. Allocated memory was 140.5 MB in the beginning and 259.0 MB in the end (delta: 118.5 MB). Free memory was 79.8 MB in the beginning and 191.8 MB in the end (delta: -111.9 MB). Peak memory consumption was 107.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 430.60 ms. Allocated memory is still 259.0 MB. Free memory was 191.8 MB in the beginning and 159.7 MB in the end (delta: 32.0 MB). Peak memory consumption was 32.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9063.41 ms. Allocated memory was 259.0 MB in the beginning and 525.3 MB in the end (delta: 266.3 MB). Free memory was 159.7 MB in the beginning and 372.1 MB in the end (delta: -212.3 MB). Peak memory consumption was 311.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 38986.25 ms. Allocated memory was 525.3 MB in the beginning and 963.1 MB in the end (delta: 437.8 MB). Free memory was 372.1 MB in the beginning and 331.3 MB in the end (delta: 40.7 MB). Peak memory consumption was 478.5 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, 38.9s OverallTime, 15 OverallIterations, 2 TraceHistogramMax, 29.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 33760 SDtfs, 15988 SDslu, 169550 SDs, 0 SdLazy, 3210 SolverSat, 1828 SolverUnsat, 7 SolverUnknown, 0 SolverNotchecked, 23.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 164 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 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: 2.3s AutomataMinimizationTime, 15 MinimizatonAttempts, 9988 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.4s SsaConstructionTime, 2.5s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 1296 NumberOfCodeBlocks, 1296 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1281 ConstructedInterpolants, 0 QuantifiedInterpolants, 200441 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...