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-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:42:37,182 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:42:37,184 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:42:37,198 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:42:37,199 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:42:37,200 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:42:37,201 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:42:37,205 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:42:37,208 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:42:37,211 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:42:37,213 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:42:37,220 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:42:37,220 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:42:37,221 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:42:37,222 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:42:37,223 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:42:37,225 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:42:37,225 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:42:37,227 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:42:37,230 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:42:37,233 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:42:37,237 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:42:37,238 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:42:37,238 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:42:37,242 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:42:37,242 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:42:37,242 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:42:37,243 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:42:37,243 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:42:37,244 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:42:37,244 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:42:37,245 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:42:37,246 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:42:37,247 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:42:37,248 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:42:37,248 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:42:37,248 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:42:37,249 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:42:37,249 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:42:37,250 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:42:37,251 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:42:37,251 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-20 13:42:37,272 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:42:37,272 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:42:37,273 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:42:37,273 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:42:37,274 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:42:37,274 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:42:37,274 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:42:37,274 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:42:37,274 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:42:37,275 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:42:37,277 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:42:37,277 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:42:37,278 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:42:37,278 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:42:37,278 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:42:37,278 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:42:37,279 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:42:37,279 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:42:37,279 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:42:37,280 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:42:37,280 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:42:37,280 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:42:37,280 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:42:37,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:42:37,281 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:42:37,281 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:42:37,281 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:42:37,281 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:42:37,281 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:42:37,282 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:42:37,321 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:42:37,341 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:42:37,347 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:42:37,349 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:42:37,350 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:42:37,351 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-commit-tester/m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-1.i [2019-09-20 13:42:37,409 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6407476ac/56ca58f1e45242e09b48e0552424617d/FLAG269732a69 [2019-09-20 13:42:38,135 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:42:38,138 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-commit-tester/m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-1.i [2019-09-20 13:42:38,174 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6407476ac/56ca58f1e45242e09b48e0552424617d/FLAG269732a69 [2019-09-20 13:42:38,264 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6407476ac/56ca58f1e45242e09b48e0552424617d [2019-09-20 13:42:38,273 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:42:38,274 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:42:38,276 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:42:38,276 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:42:38,279 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:42:38,281 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:42:38" (1/1) ... [2019-09-20 13:42:38,284 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32400a05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:42:38, skipping insertion in model container [2019-09-20 13:42:38,285 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:42:38" (1/1) ... [2019-09-20 13:42:38,293 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:42:38,433 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:42:40,118 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:42:40,197 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:42:40,450 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:42:40,828 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:42:40,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:42:40 WrapperNode [2019-09-20 13:42:40,828 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:42:40,829 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:42:40,829 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:42:40,830 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:42:40,844 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:42:40" (1/1) ... [2019-09-20 13:42:40,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:42:40" (1/1) ... [2019-09-20 13:42:40,934 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:42:40" (1/1) ... [2019-09-20 13:42:40,934 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:42:40" (1/1) ... [2019-09-20 13:42:41,079 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:42:40" (1/1) ... [2019-09-20 13:42:41,108 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:42:40" (1/1) ... [2019-09-20 13:42:41,145 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:42:40" (1/1) ... [2019-09-20 13:42:41,203 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:42:41,203 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:42:41,203 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:42:41,204 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:42:41,205 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:42:40" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:42:41,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:42:41,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:42:41,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~int~X~~gfp_t~0~TO~VOID [2019-09-20 13:42:41,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2019-09-20 13:42:41,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-09-20 13:42:41,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2019-09-20 13:42:41,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~gfp_t~0~TO~$Pointer$ [2019-09-20 13:42:41,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2019-09-20 13:42:41,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~gfp_t~0~TO~int [2019-09-20 13:42:41,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2019-09-20 13:42:41,290 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2019-09-20 13:42:41,291 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2019-09-20 13:42:41,291 INFO L138 BoogieDeclarations]: Found implementation of procedure get_order [2019-09-20 13:42:41,291 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2019-09-20 13:42:41,291 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2019-09-20 13:42:41,291 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2019-09-20 13:42:41,292 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del [2019-09-20 13:42:41,292 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2019-09-20 13:42:41,292 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2019-09-20 13:42:41,292 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2019-09-20 13:42:41,292 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-09-20 13:42:41,293 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2019-09-20 13:42:41,293 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2019-09-20 13:42:41,293 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-09-20 13:42:41,293 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2019-09-20 13:42:41,293 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2019-09-20 13:42:41,293 INFO L138 BoogieDeclarations]: Found implementation of procedure test_tsk_thread_flag [2019-09-20 13:42:41,294 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2019-09-20 13:42:41,294 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemleak_alloc [2019-09-20 13:42:41,294 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_kmalloc [2019-09-20 13:42:41,294 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_index [2019-09-20 13:42:41,294 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_slab [2019-09-20 13:42:41,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-09-20 13:42:41,294 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-09-20 13:42:41,295 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_large [2019-09-20 13:42:41,295 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-09-20 13:42:41,295 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2019-09-20 13:42:41,295 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-09-20 13:42:41,295 INFO L138 BoogieDeclarations]: Found implementation of procedure init_utsname [2019-09-20 13:42:41,295 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2019-09-20 13:42:41,296 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2019-09-20 13:42:41,296 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_enable [2019-09-20 13:42:41,296 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_disable [2019-09-20 13:42:41,296 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_alloc_request [2019-09-20 13:42:41,296 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_free_request [2019-09-20 13:42:41,296 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_queue [2019-09-20 13:42:41,296 INFO L138 BoogieDeclarations]: Found implementation of procedure set_gadget_data [2019-09-20 13:42:41,297 INFO L138 BoogieDeclarations]: Found implementation of procedure get_gadget_data [2019-09-20 13:42:41,297 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_set_selfpowered [2019-09-20 13:42:41,297 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_vbus_draw [2019-09-20 13:42:41,297 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_controller_number [2019-09-20 13:42:41,297 INFO L138 BoogieDeclarations]: Found implementation of procedure utf8_to_utf16le [2019-09-20 13:42:41,297 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_get_string [2019-09-20 13:42:41,297 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_descriptor_fillbuf [2019-09-20 13:42:41,298 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_config_buf [2019-09-20 13:42:41,298 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_copy_descriptors [2019-09-20 13:42:41,298 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_find_endpoint [2019-09-20 13:42:41,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ep_matches [2019-09-20 13:42:41,298 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_autoconfig [2019-09-20 13:42:41,298 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_autoconfig_reset [2019-09-20 13:42:41,299 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_alloc [2019-09-20 13:42:41,299 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_free [2019-09-20 13:42:41,299 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_complete [2019-09-20 13:42:41,299 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_complete [2019-09-20 13:42:41,299 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_open [2019-09-20 13:42:41,299 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_close [2019-09-20 13:42:41,300 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rx_reqs [2019-09-20 13:42:41,300 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_read [2019-09-20 13:42:41,300 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_write [2019-09-20 13:42:41,300 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_fsync [2019-09-20 13:42:41,300 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_poll [2019-09-20 13:42:41,300 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_ioctl [2019-09-20 13:42:41,300 INFO L138 BoogieDeclarations]: Found implementation of procedure set_printer_interface [2019-09-20 13:42:41,301 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_reset_interface [2019-09-20 13:42:41,301 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_set_config [2019-09-20 13:42:41,301 INFO L138 BoogieDeclarations]: Found implementation of procedure config_buf [2019-09-20 13:42:41,301 INFO L138 BoogieDeclarations]: Found implementation of procedure set_interface [2019-09-20 13:42:41,301 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup_complete [2019-09-20 13:42:41,302 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_soft_reset [2019-09-20 13:42:41,302 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup [2019-09-20 13:42:41,302 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_disconnect [2019-09-20 13:42:41,302 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_unbind [2019-09-20 13:42:41,302 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_bind [2019-09-20 13:42:41,302 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2019-09-20 13:42:41,303 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:42:41,303 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:42:41,303 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-09-20 13:42:41,303 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-09-20 13:42:41,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_chrdev_region_5 [2019-09-20 13:42:41,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_class_destroy_6 [2019-09-20 13:42:41,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_gadget_register_driver_7 [2019-09-20 13:42:41,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_class_destroy_8 [2019-09-20 13:42:41,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region_9 [2019-09-20 13:42:41,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_gadget_unregister_driver_10 [2019-09-20 13:42:41,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region_11 [2019-09-20 13:42:41,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_class_destroy_12 [2019-09-20 13:42:41,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-09-20 13:42:41,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-09-20 13:42:41,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive_int [2019-09-20 13:42:41,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-09-20 13:42:41,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-09-20 13:42:41,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-09-20 13:42:41,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-09-20 13:42:41,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-09-20 13:42:41,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_create_class [2019-09-20 13:42:41,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_class [2019-09-20 13:42:41,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_class [2019-09-20 13:42:41,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_chrdev_region [2019-09-20 13:42:41,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region [2019-09-20 13:42:41,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_usb_gadget [2019-09-20 13:42:41,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_usb_gadget [2019-09-20 13:42:41,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-09-20 13:42:41,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_free_pages [2019-09-20 13:42:41,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-09-20 13:42:41,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2019-09-20 13:42:41,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2019-09-20 13:42:41,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-09-20 13:42:41,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2019-09-20 13:42:41,308 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2019-09-20 13:42:41,308 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-09-20 13:42:41,308 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2019-09-20 13:42:41,308 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2019-09-20 13:42:41,308 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2019-09-20 13:42:41,308 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-09-20 13:42:41,309 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_chrdev_region [2019-09-20 13:42:41,309 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2019-09-20 13:42:41,309 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_del [2019-09-20 13:42:41,309 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_init [2019-09-20 13:42:41,309 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2019-09-20 13:42:41,309 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2019-09-20 13:42:41,309 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-09-20 13:42:41,310 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-09-20 13:42:41,310 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-09-20 13:42:41,310 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2019-09-20 13:42:41,310 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create [2019-09-20 13:42:41,310 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2019-09-20 13:42:41,310 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2019-09-20 13:42:41,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2019-09-20 13:42:41,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2019-09-20 13:42:41,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-09-20 13:42:41,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-09-20 13:42:41,311 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2019-09-20 13:42:41,311 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_dereference [2019-09-20 13:42:41,312 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-09-20 13:42:41,312 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2019-09-20 13:42:41,312 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-09-20 13:42:41,312 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2019-09-20 13:42:41,312 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-09-20 13:42:41,312 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2019-09-20 13:42:41,312 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2019-09-20 13:42:41,313 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2019-09-20 13:42:41,313 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2019-09-20 13:42:41,313 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_register_driver [2019-09-20 13:42:41,313 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_unregister_driver [2019-09-20 13:42:41,313 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2019-09-20 13:42:41,313 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2019-09-20 13:42:41,313 INFO L138 BoogieDeclarations]: Found implementation of procedure autoremove_wake_function [2019-09-20 13:42:41,314 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-09-20 13:42:41,314 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-09-20 13:42:41,314 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-09-20 13:42:41,314 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-09-20 13:42:41,314 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:42:41,314 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-09-20 13:42:41,314 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-09-20 13:42:41,315 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-09-20 13:42:41,315 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_create_class [2019-09-20 13:42:41,315 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_class [2019-09-20 13:42:41,315 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_chrdev_region [2019-09-20 13:42:41,315 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region [2019-09-20 13:42:41,315 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_usb_gadget [2019-09-20 13:42:41,315 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_usb_gadget [2019-09-20 13:42:41,316 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2019-09-20 13:42:41,316 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2019-09-20 13:42:41,316 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2019-09-20 13:42:41,316 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-09-20 13:42:41,316 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2019-09-20 13:42:41,316 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2019-09-20 13:42:41,316 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-09-20 13:42:41,317 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-09-20 13:42:41,317 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2019-09-20 13:42:41,317 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-09-20 13:42:41,317 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2019-09-20 13:42:41,317 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2019-09-20 13:42:41,317 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2019-09-20 13:42:41,317 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2019-09-20 13:42:41,318 INFO L130 BoogieDeclarations]: Found specification of procedure get_order [2019-09-20 13:42:41,318 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-09-20 13:42:41,318 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-09-20 13:42:41,318 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2019-09-20 13:42:41,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:42:41,318 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2019-09-20 13:42:41,318 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2019-09-20 13:42:41,318 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:42:41,319 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2019-09-20 13:42:41,319 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del [2019-09-20 13:42:41,319 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2019-09-20 13:42:41,319 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2019-09-20 13:42:41,319 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2019-09-20 13:42:41,319 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2019-09-20 13:42:41,319 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_dereference [2019-09-20 13:42:41,320 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-09-20 13:42:41,320 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2019-09-20 13:42:41,320 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2019-09-20 13:42:41,320 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2019-09-20 13:42:41,320 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-09-20 13:42:41,320 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-09-20 13:42:41,320 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2019-09-20 13:42:41,320 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2019-09-20 13:42:41,321 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-09-20 13:42:41,321 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-09-20 13:42:41,321 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2019-09-20 13:42:41,321 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2019-09-20 13:42:41,321 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2019-09-20 13:42:41,321 INFO L130 BoogieDeclarations]: Found specification of procedure autoremove_wake_function [2019-09-20 13:42:41,322 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2019-09-20 13:42:41,322 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2019-09-20 13:42:41,322 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-09-20 13:42:41,322 INFO L130 BoogieDeclarations]: Found specification of procedure __get_free_pages [2019-09-20 13:42:41,322 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2019-09-20 13:42:41,322 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2019-09-20 13:42:41,322 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2019-09-20 13:42:41,323 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2019-09-20 13:42:41,323 INFO L130 BoogieDeclarations]: Found specification of procedure test_tsk_thread_flag [2019-09-20 13:42:41,323 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2019-09-20 13:42:41,323 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-09-20 13:42:41,323 INFO L130 BoogieDeclarations]: Found specification of procedure kmemleak_alloc [2019-09-20 13:42:41,323 INFO L130 BoogieDeclarations]: Found specification of procedure trace_kmalloc [2019-09-20 13:42:41,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:42:41,323 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~int~X~~gfp_t~0~TO~VOID [2019-09-20 13:42:41,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:42:41,324 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_index [2019-09-20 13:42:41,324 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_slab [2019-09-20 13:42:41,324 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:42:41,324 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-20 13:42:41,324 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:42:41,324 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-09-20 13:42:41,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:42:41,325 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-09-20 13:42:41,325 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2019-09-20 13:42:41,325 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_large [2019-09-20 13:42:41,325 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-09-20 13:42:41,325 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-09-20 13:42:41,325 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2019-09-20 13:42:41,325 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2019-09-20 13:42:41,326 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-09-20 13:42:41,326 INFO L130 BoogieDeclarations]: Found specification of procedure init_utsname [2019-09-20 13:42:41,326 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2019-09-20 13:42:41,326 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_class_destroy_6 [2019-09-20 13:42:41,326 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_class_destroy_8 [2019-09-20 13:42:41,326 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_class_destroy_12 [2019-09-20 13:42:41,326 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-09-20 13:42:41,327 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-09-20 13:42:41,327 INFO L130 BoogieDeclarations]: Found specification of procedure device_create [2019-09-20 13:42:41,327 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2019-09-20 13:42:41,327 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-09-20 13:42:41,327 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2019-09-20 13:42:41,327 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_chrdev_region [2019-09-20 13:42:41,327 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_chrdev_region_5 [2019-09-20 13:42:41,327 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2019-09-20 13:42:41,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region_9 [2019-09-20 13:42:41,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region_11 [2019-09-20 13:42:41,328 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2019-09-20 13:42:41,328 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2019-09-20 13:42:41,328 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_init [2019-09-20 13:42:41,328 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2019-09-20 13:42:41,328 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_del [2019-09-20 13:42:41,329 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2019-09-20 13:42:41,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:42:41,329 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_enable [2019-09-20 13:42:41,329 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-09-20 13:42:41,329 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_disable [2019-09-20 13:42:41,329 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2019-09-20 13:42:41,329 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_alloc_request [2019-09-20 13:42:41,330 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~gfp_t~0~TO~$Pointer$ [2019-09-20 13:42:41,330 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_free_request [2019-09-20 13:42:41,330 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2019-09-20 13:42:41,330 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_queue [2019-09-20 13:42:41,330 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~gfp_t~0~TO~int [2019-09-20 13:42:41,330 INFO L130 BoogieDeclarations]: Found specification of procedure set_gadget_data [2019-09-20 13:42:41,330 INFO L130 BoogieDeclarations]: Found specification of procedure get_gadget_data [2019-09-20 13:42:41,331 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_set_selfpowered [2019-09-20 13:42:41,331 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2019-09-20 13:42:41,331 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_vbus_draw [2019-09-20 13:42:41,331 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_register_driver [2019-09-20 13:42:41,331 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_gadget_register_driver_7 [2019-09-20 13:42:41,331 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_unregister_driver [2019-09-20 13:42:41,332 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_gadget_unregister_driver_10 [2019-09-20 13:42:41,332 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_get_string [2019-09-20 13:42:41,332 INFO L130 BoogieDeclarations]: Found specification of procedure usb_descriptor_fillbuf [2019-09-20 13:42:41,332 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_config_buf [2019-09-20 13:42:41,332 INFO L130 BoogieDeclarations]: Found specification of procedure usb_copy_descriptors [2019-09-20 13:42:41,332 INFO L130 BoogieDeclarations]: Found specification of procedure usb_find_endpoint [2019-09-20 13:42:41,332 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_autoconfig [2019-09-20 13:42:41,332 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_autoconfig_reset [2019-09-20 13:42:41,333 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_controller_number [2019-09-20 13:42:41,333 INFO L130 BoogieDeclarations]: Found specification of procedure utf8_to_utf16le [2019-09-20 13:42:41,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-09-20 13:42:41,333 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-09-20 13:42:41,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-09-20 13:42:41,333 INFO L130 BoogieDeclarations]: Found specification of procedure ep_matches [2019-09-20 13:42:41,333 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_alloc [2019-09-20 13:42:41,334 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_free [2019-09-20 13:42:41,334 INFO L130 BoogieDeclarations]: Found specification of procedure rx_complete [2019-09-20 13:42:41,334 INFO L130 BoogieDeclarations]: Found specification of procedure tx_complete [2019-09-20 13:42:41,334 INFO L130 BoogieDeclarations]: Found specification of procedure printer_open [2019-09-20 13:42:41,334 INFO L130 BoogieDeclarations]: Found specification of procedure printer_close [2019-09-20 13:42:41,334 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rx_reqs [2019-09-20 13:42:41,334 INFO L130 BoogieDeclarations]: Found specification of procedure printer_read [2019-09-20 13:42:41,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:42:41,335 INFO L130 BoogieDeclarations]: Found specification of procedure printer_write [2019-09-20 13:42:41,335 INFO L130 BoogieDeclarations]: Found specification of procedure printer_fsync [2019-09-20 13:42:41,335 INFO L130 BoogieDeclarations]: Found specification of procedure printer_poll [2019-09-20 13:42:41,335 INFO L130 BoogieDeclarations]: Found specification of procedure printer_ioctl [2019-09-20 13:42:41,335 INFO L130 BoogieDeclarations]: Found specification of procedure set_printer_interface [2019-09-20 13:42:41,335 INFO L130 BoogieDeclarations]: Found specification of procedure printer_reset_interface [2019-09-20 13:42:41,336 INFO L130 BoogieDeclarations]: Found specification of procedure printer_set_config [2019-09-20 13:42:41,336 INFO L130 BoogieDeclarations]: Found specification of procedure config_buf [2019-09-20 13:42:41,336 INFO L130 BoogieDeclarations]: Found specification of procedure set_interface [2019-09-20 13:42:41,336 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup_complete [2019-09-20 13:42:41,336 INFO L130 BoogieDeclarations]: Found specification of procedure printer_soft_reset [2019-09-20 13:42:41,336 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup [2019-09-20 13:42:41,336 INFO L130 BoogieDeclarations]: Found specification of procedure printer_disconnect [2019-09-20 13:42:41,336 INFO L130 BoogieDeclarations]: Found specification of procedure printer_unbind [2019-09-20 13:42:41,337 INFO L130 BoogieDeclarations]: Found specification of procedure printer_bind [2019-09-20 13:42:41,337 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-09-20 13:42:41,337 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:42:41,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-09-20 13:42:41,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2019-09-20 13:42:41,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-09-20 13:42:41,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2019-09-20 13:42:41,337 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:42:41,338 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-09-20 13:42:41,338 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-09-20 13:42:41,338 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-09-20 13:42:41,338 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive_int [2019-09-20 13:42:41,338 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-09-20 13:42:41,338 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-09-20 13:42:41,338 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_class [2019-09-20 13:42:41,339 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-09-20 13:42:41,339 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-09-20 13:42:41,339 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-09-20 13:42:41,339 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:42:41,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:42:41,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:42:41,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-20 13:42:41,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:42:41,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-09-20 13:42:41,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-09-20 13:42:41,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-09-20 13:42:41,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-09-20 13:42:42,533 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-09-20 13:42:49,860 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:42:49,860 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-20 13:42:49,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:42:49 BoogieIcfgContainer [2019-09-20 13:42:49,863 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:42:49,864 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:42:49,864 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:42:49,868 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:42:49,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:42:38" (1/3) ... [2019-09-20 13:42:49,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@390e26e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:42:49, skipping insertion in model container [2019-09-20 13:42:49,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:42:40" (2/3) ... [2019-09-20 13:42:49,870 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@390e26e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:42:49, skipping insertion in model container [2019-09-20 13:42:49,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:42:49" (3/3) ... [2019-09-20 13:42:49,872 INFO L109 eAbstractionObserver]: Analyzing ICFG m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-1.i [2019-09-20 13:42:49,883 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:42:49,894 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:42:49,913 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:42:49,941 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:42:49,942 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:42:49,942 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:42:49,942 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:42:49,942 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:42:49,942 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:42:49,943 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:42:49,943 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:42:49,989 INFO L276 IsEmpty]: Start isEmpty. Operand 1542 states. [2019-09-20 13:42:50,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-09-20 13:42:50,000 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:42:50,001 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:42:50,003 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:42:50,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:42:50,009 INFO L82 PathProgramCache]: Analyzing trace with hash 720613046, now seen corresponding path program 1 times [2019-09-20 13:42:50,012 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:42:50,094 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:42:50,095 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:42:50,095 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:42:50,095 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:42:50,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:42:50,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:42:50,920 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:42:50,920 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:42:50,920 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:42:50,927 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:42:50,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:42:50,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:42:50,949 INFO L87 Difference]: Start difference. First operand 1542 states. Second operand 3 states. [2019-09-20 13:42:51,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:42:51,239 INFO L93 Difference]: Finished difference Result 2672 states and 3666 transitions. [2019-09-20 13:42:51,239 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:42:51,241 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2019-09-20 13:42:51,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:42:51,308 INFO L225 Difference]: With dead ends: 2672 [2019-09-20 13:42:51,308 INFO L226 Difference]: Without dead ends: 2662 [2019-09-20 13:42:51,311 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:42:51,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2662 states. [2019-09-20 13:42:51,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2662 to 2657. [2019-09-20 13:42:51,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2657 states. [2019-09-20 13:42:51,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2657 states to 2657 states and 3649 transitions. [2019-09-20 13:42:51,604 INFO L78 Accepts]: Start accepts. Automaton has 2657 states and 3649 transitions. Word has length 29 [2019-09-20 13:42:51,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:42:51,604 INFO L475 AbstractCegarLoop]: Abstraction has 2657 states and 3649 transitions. [2019-09-20 13:42:51,605 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:42:51,605 INFO L276 IsEmpty]: Start isEmpty. Operand 2657 states and 3649 transitions. [2019-09-20 13:42:51,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-09-20 13:42:51,607 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:42:51,607 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:42:51,608 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:42:51,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:42:51,608 INFO L82 PathProgramCache]: Analyzing trace with hash 861919949, now seen corresponding path program 1 times [2019-09-20 13:42:51,609 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:42:51,622 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:42:51,622 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:42:51,623 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:42:51,623 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:42:51,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:42:52,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:42:52,172 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:42:52,173 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:42:52,174 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:42:52,178 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:42:52,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:42:52,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:42:52,185 INFO L87 Difference]: Start difference. First operand 2657 states and 3649 transitions. Second operand 3 states. [2019-09-20 13:42:52,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:42:52,347 INFO L93 Difference]: Finished difference Result 3905 states and 5376 transitions. [2019-09-20 13:42:52,347 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:42:52,348 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2019-09-20 13:42:52,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:42:52,383 INFO L225 Difference]: With dead ends: 3905 [2019-09-20 13:42:52,384 INFO L226 Difference]: Without dead ends: 3905 [2019-09-20 13:42:52,385 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:42:52,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3905 states. [2019-09-20 13:42:52,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3905 to 3892. [2019-09-20 13:42:52,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3892 states. [2019-09-20 13:42:52,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3892 states to 3892 states and 5364 transitions. [2019-09-20 13:42:52,579 INFO L78 Accepts]: Start accepts. Automaton has 3892 states and 5364 transitions. Word has length 30 [2019-09-20 13:42:52,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:42:52,579 INFO L475 AbstractCegarLoop]: Abstraction has 3892 states and 5364 transitions. [2019-09-20 13:42:52,580 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:42:52,580 INFO L276 IsEmpty]: Start isEmpty. Operand 3892 states and 5364 transitions. [2019-09-20 13:42:52,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-09-20 13:42:52,583 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:42:52,584 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:42:52,584 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:42:52,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:42:52,584 INFO L82 PathProgramCache]: Analyzing trace with hash -1242276972, now seen corresponding path program 1 times [2019-09-20 13:42:52,585 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:42:52,602 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:42:52,602 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:42:52,602 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:42:52,603 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:42:53,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:42:53,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:42:53,382 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:42:53,382 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:42:53,382 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:42:53,383 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:42:53,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:42:53,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:42:53,384 INFO L87 Difference]: Start difference. First operand 3892 states and 5364 transitions. Second operand 7 states. [2019-09-20 13:42:53,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:42:53,493 INFO L93 Difference]: Finished difference Result 3882 states and 5353 transitions. [2019-09-20 13:42:53,493 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:42:53,493 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 62 [2019-09-20 13:42:53,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:42:53,521 INFO L225 Difference]: With dead ends: 3882 [2019-09-20 13:42:53,521 INFO L226 Difference]: Without dead ends: 3882 [2019-09-20 13:42:53,522 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:42:53,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3882 states. [2019-09-20 13:42:53,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3882 to 3882. [2019-09-20 13:42:53,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3882 states. [2019-09-20 13:42:53,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3882 states to 3882 states and 5353 transitions. [2019-09-20 13:42:53,668 INFO L78 Accepts]: Start accepts. Automaton has 3882 states and 5353 transitions. Word has length 62 [2019-09-20 13:42:53,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:42:53,668 INFO L475 AbstractCegarLoop]: Abstraction has 3882 states and 5353 transitions. [2019-09-20 13:42:53,668 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:42:53,668 INFO L276 IsEmpty]: Start isEmpty. Operand 3882 states and 5353 transitions. [2019-09-20 13:42:53,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-09-20 13:42:53,670 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:42:53,670 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:42:53,670 INFO L418 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:42:53,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:42:53,671 INFO L82 PathProgramCache]: Analyzing trace with hash 1848247394, now seen corresponding path program 1 times [2019-09-20 13:42:53,671 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:42:53,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:42:53,681 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:42:53,681 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:42:53,681 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:42:53,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:42:54,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:42:54,069 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:42:54,069 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:42:54,069 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:42:54,072 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:42:54,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:42:54,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:42:54,072 INFO L87 Difference]: Start difference. First operand 3882 states and 5353 transitions. Second operand 3 states. [2019-09-20 13:42:54,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:42:54,200 INFO L93 Difference]: Finished difference Result 7691 states and 10619 transitions. [2019-09-20 13:42:54,200 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:42:54,201 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 65 [2019-09-20 13:42:54,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:42:54,255 INFO L225 Difference]: With dead ends: 7691 [2019-09-20 13:42:54,255 INFO L226 Difference]: Without dead ends: 7683 [2019-09-20 13:42:54,255 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:42:54,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7683 states. [2019-09-20 13:42:54,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7683 to 6444. [2019-09-20 13:42:54,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6444 states. [2019-09-20 13:42:54,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6444 states to 6444 states and 8889 transitions. [2019-09-20 13:42:54,673 INFO L78 Accepts]: Start accepts. Automaton has 6444 states and 8889 transitions. Word has length 65 [2019-09-20 13:42:54,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:42:54,674 INFO L475 AbstractCegarLoop]: Abstraction has 6444 states and 8889 transitions. [2019-09-20 13:42:54,674 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:42:54,674 INFO L276 IsEmpty]: Start isEmpty. Operand 6444 states and 8889 transitions. [2019-09-20 13:42:54,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2019-09-20 13:42:54,685 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:42:54,685 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:42:54,691 INFO L418 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:42:54,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:42:54,692 INFO L82 PathProgramCache]: Analyzing trace with hash 1504060568, now seen corresponding path program 1 times [2019-09-20 13:42:54,692 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:42:54,705 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:42:54,706 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:42:54,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:42:54,706 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:42:54,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:42:55,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:42:55,019 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:42:55,019 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:42:55,020 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:42:55,020 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:42:55,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:42:55,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:42:55,021 INFO L87 Difference]: Start difference. First operand 6444 states and 8889 transitions. Second operand 3 states. [2019-09-20 13:42:57,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:42:57,850 INFO L93 Difference]: Finished difference Result 7675 states and 10594 transitions. [2019-09-20 13:42:57,851 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:42:57,851 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 80 [2019-09-20 13:42:57,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:42:57,923 INFO L225 Difference]: With dead ends: 7675 [2019-09-20 13:42:57,923 INFO L226 Difference]: Without dead ends: 7665 [2019-09-20 13:42:57,924 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:42:57,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7665 states. [2019-09-20 13:42:58,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7665 to 5170. [2019-09-20 13:42:58,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5170 states. [2019-09-20 13:42:58,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5170 states to 5170 states and 7123 transitions. [2019-09-20 13:42:58,176 INFO L78 Accepts]: Start accepts. Automaton has 5170 states and 7123 transitions. Word has length 80 [2019-09-20 13:42:58,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:42:58,178 INFO L475 AbstractCegarLoop]: Abstraction has 5170 states and 7123 transitions. [2019-09-20 13:42:58,178 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:42:58,178 INFO L276 IsEmpty]: Start isEmpty. Operand 5170 states and 7123 transitions. [2019-09-20 13:42:58,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2019-09-20 13:42:58,181 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:42:58,182 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:42:58,182 INFO L418 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:42:58,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:42:58,182 INFO L82 PathProgramCache]: Analyzing trace with hash 556862832, now seen corresponding path program 1 times [2019-09-20 13:42:58,183 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:42:58,194 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:42:58,194 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:42:58,194 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:42:58,194 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:42:58,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:42:58,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:42:58,531 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:42:58,532 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-20 13:42:58,532 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:42:58,532 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-20 13:42:58,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-20 13:42:58,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:42:58,533 INFO L87 Difference]: Start difference. First operand 5170 states and 7123 transitions. Second operand 8 states. [2019-09-20 13:42:58,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:42:58,673 INFO L93 Difference]: Finished difference Result 5155 states and 7104 transitions. [2019-09-20 13:42:58,673 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:42:58,673 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 96 [2019-09-20 13:42:58,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:42:58,699 INFO L225 Difference]: With dead ends: 5155 [2019-09-20 13:42:58,700 INFO L226 Difference]: Without dead ends: 5155 [2019-09-20 13:42:58,701 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:42:58,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5155 states. [2019-09-20 13:42:58,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5155 to 5155. [2019-09-20 13:42:58,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5155 states. [2019-09-20 13:42:58,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 7104 transitions. [2019-09-20 13:42:58,879 INFO L78 Accepts]: Start accepts. Automaton has 5155 states and 7104 transitions. Word has length 96 [2019-09-20 13:42:58,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:42:58,879 INFO L475 AbstractCegarLoop]: Abstraction has 5155 states and 7104 transitions. [2019-09-20 13:42:58,879 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-20 13:42:58,880 INFO L276 IsEmpty]: Start isEmpty. Operand 5155 states and 7104 transitions. [2019-09-20 13:42:58,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-09-20 13:42:58,885 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:42:58,885 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:42:58,886 INFO L418 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:42:58,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:42:58,886 INFO L82 PathProgramCache]: Analyzing trace with hash -594444368, now seen corresponding path program 1 times [2019-09-20 13:42:58,887 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:42:58,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:42:58,898 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:42:58,899 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:42:58,899 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:42:59,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:42:59,437 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-09-20 13:42:59,437 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:42:59,437 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-20 13:42:59,438 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:42:59,438 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-20 13:42:59,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-20 13:42:59,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:42:59,440 INFO L87 Difference]: Start difference. First operand 5155 states and 7104 transitions. Second operand 8 states. [2019-09-20 13:42:59,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:42:59,604 INFO L93 Difference]: Finished difference Result 3885 states and 5341 transitions. [2019-09-20 13:42:59,604 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:42:59,604 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 103 [2019-09-20 13:42:59,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:42:59,637 INFO L225 Difference]: With dead ends: 3885 [2019-09-20 13:42:59,637 INFO L226 Difference]: Without dead ends: 3885 [2019-09-20 13:42:59,638 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:42:59,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3885 states. [2019-09-20 13:42:59,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3885 to 3885. [2019-09-20 13:42:59,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3885 states. [2019-09-20 13:42:59,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3885 states to 3885 states and 5341 transitions. [2019-09-20 13:42:59,759 INFO L78 Accepts]: Start accepts. Automaton has 3885 states and 5341 transitions. Word has length 103 [2019-09-20 13:42:59,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:42:59,760 INFO L475 AbstractCegarLoop]: Abstraction has 3885 states and 5341 transitions. [2019-09-20 13:42:59,760 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-20 13:42:59,760 INFO L276 IsEmpty]: Start isEmpty. Operand 3885 states and 5341 transitions. [2019-09-20 13:42:59,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2019-09-20 13:42:59,764 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:42:59,765 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:42:59,765 INFO L418 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:42:59,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:42:59,765 INFO L82 PathProgramCache]: Analyzing trace with hash 1992954746, now seen corresponding path program 1 times [2019-09-20 13:42:59,766 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:42:59,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:42:59,775 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:42:59,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:42:59,775 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:42:59,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:43:00,129 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-09-20 13:43:00,130 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:43:00,130 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-20 13:43:00,130 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:43:00,133 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-20 13:43:00,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-20 13:43:00,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:43:00,135 INFO L87 Difference]: Start difference. First operand 3885 states and 5341 transitions. Second operand 8 states. [2019-09-20 13:43:00,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:43:00,286 INFO L93 Difference]: Finished difference Result 2659 states and 3632 transitions. [2019-09-20 13:43:00,286 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:43:00,287 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 106 [2019-09-20 13:43:00,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:43:00,301 INFO L225 Difference]: With dead ends: 2659 [2019-09-20 13:43:00,301 INFO L226 Difference]: Without dead ends: 2659 [2019-09-20 13:43:00,302 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:43:00,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2659 states. [2019-09-20 13:43:00,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2659 to 2659. [2019-09-20 13:43:00,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2659 states. [2019-09-20 13:43:00,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2659 states to 2659 states and 3632 transitions. [2019-09-20 13:43:00,395 INFO L78 Accepts]: Start accepts. Automaton has 2659 states and 3632 transitions. Word has length 106 [2019-09-20 13:43:00,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:43:00,397 INFO L475 AbstractCegarLoop]: Abstraction has 2659 states and 3632 transitions. [2019-09-20 13:43:00,397 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-20 13:43:00,397 INFO L276 IsEmpty]: Start isEmpty. Operand 2659 states and 3632 transitions. [2019-09-20 13:43:00,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2019-09-20 13:43:00,402 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:43:00,403 INFO L407 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:43:00,403 INFO L418 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:43:00,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:43:00,403 INFO L82 PathProgramCache]: Analyzing trace with hash 14046403, now seen corresponding path program 1 times [2019-09-20 13:43:00,404 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:43:00,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:43:00,415 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:43:00,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:43:00,415 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:43:00,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:43:00,798 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-09-20 13:43:00,798 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:43:00,798 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-09-20 13:43:00,798 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:43:00,799 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-09-20 13:43:00,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-09-20 13:43:00,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-09-20 13:43:00,799 INFO L87 Difference]: Start difference. First operand 2659 states and 3632 transitions. Second operand 11 states. [2019-09-20 13:43:00,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:43:00,961 INFO L93 Difference]: Finished difference Result 1434 states and 1923 transitions. [2019-09-20 13:43:00,962 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-20 13:43:00,962 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 110 [2019-09-20 13:43:00,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:43:00,970 INFO L225 Difference]: With dead ends: 1434 [2019-09-20 13:43:00,970 INFO L226 Difference]: Without dead ends: 1400 [2019-09-20 13:43:00,971 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2019-09-20 13:43:00,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1400 states. [2019-09-20 13:43:01,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1400 to 1398. [2019-09-20 13:43:01,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1398 states. [2019-09-20 13:43:01,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1398 states to 1398 states and 1886 transitions. [2019-09-20 13:43:01,017 INFO L78 Accepts]: Start accepts. Automaton has 1398 states and 1886 transitions. Word has length 110 [2019-09-20 13:43:01,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:43:01,018 INFO L475 AbstractCegarLoop]: Abstraction has 1398 states and 1886 transitions. [2019-09-20 13:43:01,018 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-09-20 13:43:01,018 INFO L276 IsEmpty]: Start isEmpty. Operand 1398 states and 1886 transitions. [2019-09-20 13:43:01,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-09-20 13:43:01,020 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:43:01,021 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:43:01,021 INFO L418 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:43:01,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:43:01,021 INFO L82 PathProgramCache]: Analyzing trace with hash 1859144313, now seen corresponding path program 1 times [2019-09-20 13:43:01,022 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:43:01,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:43:01,035 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:43:01,035 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:43:01,035 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:43:01,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:43:01,404 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-09-20 13:43:01,404 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:43:01,405 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-20 13:43:01,405 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:43:01,405 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-20 13:43:01,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-20 13:43:01,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:43:01,406 INFO L87 Difference]: Start difference. First operand 1398 states and 1886 transitions. Second operand 8 states. [2019-09-20 13:43:01,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:43:01,544 INFO L93 Difference]: Finished difference Result 1389 states and 1873 transitions. [2019-09-20 13:43:01,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:43:01,544 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 109 [2019-09-20 13:43:01,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:43:01,550 INFO L225 Difference]: With dead ends: 1389 [2019-09-20 13:43:01,550 INFO L226 Difference]: Without dead ends: 1389 [2019-09-20 13:43:01,550 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-09-20 13:43:01,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1389 states. [2019-09-20 13:43:01,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1389 to 1389. [2019-09-20 13:43:01,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1389 states. [2019-09-20 13:43:01,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1389 states to 1389 states and 1873 transitions. [2019-09-20 13:43:01,586 INFO L78 Accepts]: Start accepts. Automaton has 1389 states and 1873 transitions. Word has length 109 [2019-09-20 13:43:01,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:43:01,587 INFO L475 AbstractCegarLoop]: Abstraction has 1389 states and 1873 transitions. [2019-09-20 13:43:01,587 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-20 13:43:01,587 INFO L276 IsEmpty]: Start isEmpty. Operand 1389 states and 1873 transitions. [2019-09-20 13:43:01,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-09-20 13:43:01,589 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:43:01,589 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:43:01,589 INFO L418 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:43:01,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:43:01,590 INFO L82 PathProgramCache]: Analyzing trace with hash 1360408703, now seen corresponding path program 1 times [2019-09-20 13:43:01,590 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:43:01,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:43:01,599 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:43:01,599 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:43:01,599 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:43:01,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:43:01,965 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-09-20 13:43:01,965 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:43:01,966 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-09-20 13:43:01,966 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:43:01,966 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-09-20 13:43:01,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-09-20 13:43:01,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-09-20 13:43:01,967 INFO L87 Difference]: Start difference. First operand 1389 states and 1873 transitions. Second operand 11 states. [2019-09-20 13:43:02,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:43:02,117 INFO L93 Difference]: Finished difference Result 1386 states and 1869 transitions. [2019-09-20 13:43:02,117 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-20 13:43:02,118 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 108 [2019-09-20 13:43:02,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:43:02,124 INFO L225 Difference]: With dead ends: 1386 [2019-09-20 13:43:02,124 INFO L226 Difference]: Without dead ends: 1386 [2019-09-20 13:43:02,124 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2019-09-20 13:43:02,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1386 states. [2019-09-20 13:43:02,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1386 to 1386. [2019-09-20 13:43:02,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1386 states. [2019-09-20 13:43:02,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1386 states to 1386 states and 1869 transitions. [2019-09-20 13:43:02,159 INFO L78 Accepts]: Start accepts. Automaton has 1386 states and 1869 transitions. Word has length 108 [2019-09-20 13:43:02,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:43:02,159 INFO L475 AbstractCegarLoop]: Abstraction has 1386 states and 1869 transitions. [2019-09-20 13:43:02,159 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-09-20 13:43:02,159 INFO L276 IsEmpty]: Start isEmpty. Operand 1386 states and 1869 transitions. [2019-09-20 13:43:02,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2019-09-20 13:43:02,161 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:43:02,161 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:43:02,161 INFO L418 AbstractCegarLoop]: === Iteration 12 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:43:02,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:43:02,162 INFO L82 PathProgramCache]: Analyzing trace with hash -780573357, now seen corresponding path program 1 times [2019-09-20 13:43:02,162 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:43:02,169 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:43:02,170 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:43:02,170 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:43:02,170 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:43:02,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:43:02,428 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-09-20 13:43:02,428 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:43:02,429 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:43:02,429 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:43:02,429 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:43:02,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:43:02,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:43:02,430 INFO L87 Difference]: Start difference. First operand 1386 states and 1869 transitions. Second operand 3 states. [2019-09-20 13:43:04,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:43:04,895 INFO L93 Difference]: Finished difference Result 1385 states and 1867 transitions. [2019-09-20 13:43:04,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:43:04,895 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 123 [2019-09-20 13:43:04,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:43:04,903 INFO L225 Difference]: With dead ends: 1385 [2019-09-20 13:43:04,903 INFO L226 Difference]: Without dead ends: 1337 [2019-09-20 13:43:04,903 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:43:04,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1337 states. [2019-09-20 13:43:04,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1337 to 1337. [2019-09-20 13:43:04,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1337 states. [2019-09-20 13:43:04,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1337 states to 1337 states and 1817 transitions. [2019-09-20 13:43:04,938 INFO L78 Accepts]: Start accepts. Automaton has 1337 states and 1817 transitions. Word has length 123 [2019-09-20 13:43:04,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:43:04,938 INFO L475 AbstractCegarLoop]: Abstraction has 1337 states and 1817 transitions. [2019-09-20 13:43:04,939 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:43:04,939 INFO L276 IsEmpty]: Start isEmpty. Operand 1337 states and 1817 transitions. [2019-09-20 13:43:04,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2019-09-20 13:43:04,941 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:43:04,941 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:43:04,941 INFO L418 AbstractCegarLoop]: === Iteration 13 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:43:04,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:43:04,942 INFO L82 PathProgramCache]: Analyzing trace with hash -994404246, now seen corresponding path program 1 times [2019-09-20 13:43:04,942 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:43:04,950 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:43:04,951 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:43:04,951 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:43:04,951 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:43:05,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:43:05,236 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-09-20 13:43:05,236 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:43:05,236 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:43:05,236 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:43:05,237 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:43:05,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:43:05,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:43:05,238 INFO L87 Difference]: Start difference. First operand 1337 states and 1817 transitions. Second operand 3 states. [2019-09-20 13:43:07,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:43:07,686 INFO L93 Difference]: Finished difference Result 1334 states and 1814 transitions. [2019-09-20 13:43:07,686 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:43:07,686 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2019-09-20 13:43:07,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:43:07,689 INFO L225 Difference]: With dead ends: 1334 [2019-09-20 13:43:07,689 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:43:07,689 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:43:07,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:43:07,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:43:07,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:43:07,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:43:07,690 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 126 [2019-09-20 13:43:07,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:43:07,690 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:43:07,691 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:43:07,691 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:43:07,691 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:43:07,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:43:07 BoogieIcfgContainer [2019-09-20 13:43:07,697 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:43:07,700 INFO L168 Benchmark]: Toolchain (without parser) took 29424.04 ms. Allocated memory was 140.0 MB in the beginning and 753.9 MB in the end (delta: 613.9 MB). Free memory was 80.0 MB in the beginning and 261.6 MB in the end (delta: -181.6 MB). Peak memory consumption was 432.4 MB. Max. memory is 7.1 GB. [2019-09-20 13:43:07,702 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 140.0 MB. Free memory was 106.1 MB in the beginning and 105.9 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-09-20 13:43:07,704 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2553.38 ms. Allocated memory was 140.0 MB in the beginning and 261.6 MB in the end (delta: 121.6 MB). Free memory was 79.8 MB in the beginning and 194.7 MB in the end (delta: -114.9 MB). Peak memory consumption was 108.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:43:07,706 INFO L168 Benchmark]: Boogie Preprocessor took 373.67 ms. Allocated memory is still 261.6 MB. Free memory was 194.7 MB in the beginning and 162.2 MB in the end (delta: 32.5 MB). Peak memory consumption was 32.5 MB. Max. memory is 7.1 GB. [2019-09-20 13:43:07,711 INFO L168 Benchmark]: RCFGBuilder took 8659.87 ms. Allocated memory was 261.6 MB in the beginning and 502.8 MB in the end (delta: 241.2 MB). Free memory was 162.2 MB in the beginning and 278.4 MB in the end (delta: -116.3 MB). Peak memory consumption was 284.5 MB. Max. memory is 7.1 GB. [2019-09-20 13:43:07,712 INFO L168 Benchmark]: TraceAbstraction took 17832.62 ms. Allocated memory was 502.8 MB in the beginning and 753.9 MB in the end (delta: 251.1 MB). Free memory was 278.4 MB in the beginning and 261.6 MB in the end (delta: 16.9 MB). Peak memory consumption was 268.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:43:07,725 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 140.0 MB. Free memory was 106.1 MB in the beginning and 105.9 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2553.38 ms. Allocated memory was 140.0 MB in the beginning and 261.6 MB in the end (delta: 121.6 MB). Free memory was 79.8 MB in the beginning and 194.7 MB in the end (delta: -114.9 MB). Peak memory consumption was 108.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 373.67 ms. Allocated memory is still 261.6 MB. Free memory was 194.7 MB in the beginning and 162.2 MB in the end (delta: 32.5 MB). Peak memory consumption was 32.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8659.87 ms. Allocated memory was 261.6 MB in the beginning and 502.8 MB in the end (delta: 241.2 MB). Free memory was 162.2 MB in the beginning and 278.4 MB in the end (delta: -116.3 MB). Peak memory consumption was 284.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 17832.62 ms. Allocated memory was 502.8 MB in the beginning and 753.9 MB in the end (delta: 251.1 MB). Free memory was 278.4 MB in the beginning and 261.6 MB in the end (delta: 16.9 MB). Peak memory consumption was 268.0 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, 17.7s OverallTime, 13 OverallIterations, 2 TraceHistogramMax, 9.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 28776 SDtfs, 10926 SDslu, 94690 SDs, 0 SdLazy, 379 SolverSat, 27 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 7.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 105 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6444occurred in iteration=4, 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: 1.8s AutomataMinimizationTime, 13 MinimizatonAttempts, 3754 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.4s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 1147 NumberOfCodeBlocks, 1147 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1134 ConstructedInterpolants, 0 QuantifiedInterpolants, 147640 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 34/34 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...