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-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--char--lp.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 01:46:19,689 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 01:46:19,691 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 01:46:19,704 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 01:46:19,705 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 01:46:19,706 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 01:46:19,707 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 01:46:19,709 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 01:46:19,710 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 01:46:19,711 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 01:46:19,712 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 01:46:19,713 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 01:46:19,714 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 01:46:19,715 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 01:46:19,716 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 01:46:19,717 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 01:46:19,718 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 01:46:19,719 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 01:46:19,721 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 01:46:19,723 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 01:46:19,725 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 01:46:19,726 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 01:46:19,727 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 01:46:19,728 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 01:46:19,731 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 01:46:19,731 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 01:46:19,731 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 01:46:19,732 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 01:46:19,733 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 01:46:19,734 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 01:46:19,734 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 01:46:19,735 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 01:46:19,736 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 01:46:19,736 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 01:46:19,738 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 01:46:19,738 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 01:46:19,739 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 01:46:19,739 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 01:46:19,739 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 01:46:19,740 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 01:46:19,741 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 01:46:19,742 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-10-03 01:46:19,758 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 01:46:19,758 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 01:46:19,758 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 01:46:19,759 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 01:46:19,759 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 01:46:19,759 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 01:46:19,760 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 01:46:19,760 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 01:46:19,760 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 01:46:19,760 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 01:46:19,761 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 01:46:19,762 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 01:46:19,762 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 01:46:19,762 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 01:46:19,762 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 01:46:19,762 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 01:46:19,763 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 01:46:19,763 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 01:46:19,763 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 01:46:19,763 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 01:46:19,763 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 01:46:19,764 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 01:46:19,764 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 01:46:19,766 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 01:46:19,766 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 01:46:19,766 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 01:46:19,766 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 01:46:19,766 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 01:46:19,767 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 01:46:19,767 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 01:46:19,796 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 01:46:19,809 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 01:46:19,812 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 01:46:19,814 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 01:46:19,814 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 01:46:19,815 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--char--lp.ko-entry_point.cil.out.i [2019-10-03 01:46:19,904 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28e6dcebf/6d9d7245749b4c93a42e4694421ae7e0/FLAGc6b76949f [2019-10-03 01:46:20,725 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 01:46:20,726 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--char--lp.ko-entry_point.cil.out.i [2019-10-03 01:46:20,761 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28e6dcebf/6d9d7245749b4c93a42e4694421ae7e0/FLAGc6b76949f [2019-10-03 01:46:21,202 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28e6dcebf/6d9d7245749b4c93a42e4694421ae7e0 [2019-10-03 01:46:21,212 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 01:46:21,214 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 01:46:21,215 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 01:46:21,215 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 01:46:21,219 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 01:46:21,220 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 01:46:21" (1/1) ... [2019-10-03 01:46:21,223 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d86e054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 01:46:21, skipping insertion in model container [2019-10-03 01:46:21,223 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 01:46:21" (1/1) ... [2019-10-03 01:46:21,232 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 01:46:21,380 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 01:46:23,206 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 01:46:23,277 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 01:46:23,711 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 01:46:23,977 INFO L192 MainTranslator]: Completed translation [2019-10-03 01:46:23,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 01:46:23 WrapperNode [2019-10-03 01:46:23,978 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 01:46:23,978 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 01:46:23,979 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 01:46:23,979 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 01:46:23,993 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 01:46:23" (1/1) ... [2019-10-03 01:46:23,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 01:46:23" (1/1) ... [2019-10-03 01:46:24,060 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 01:46:23" (1/1) ... [2019-10-03 01:46:24,061 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 01:46:23" (1/1) ... [2019-10-03 01:46:24,191 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 01:46:23" (1/1) ... [2019-10-03 01:46:24,221 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 01:46:23" (1/1) ... [2019-10-03 01:46:24,247 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 01:46:23" (1/1) ... [2019-10-03 01:46:24,272 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 01:46:24,273 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 01:46:24,273 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 01:46:24,273 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 01:46:24,275 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 01:46:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 01:46:24,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 01:46:24,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 01:46:24,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2019-10-03 01:46:24,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2019-10-03 01:46:24,360 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2019-10-03 01:46:24,360 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2019-10-03 01:46:24,360 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2019-10-03 01:46:24,361 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2019-10-03 01:46:24,361 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2019-10-03 01:46:24,361 INFO L138 BoogieDeclarations]: Found implementation of procedure current_top_of_stack [2019-10-03 01:46:24,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-03 01:46:24,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-03 01:46:24,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-10-03 01:46:24,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-10-03 01:46:24,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-03 01:46:24,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-03 01:46:24,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-03 01:46:24,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-03 01:46:24,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-03 01:46:24,364 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2019-10-03 01:46:24,364 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2019-10-03 01:46:24,364 INFO L138 BoogieDeclarations]: Found implementation of procedure test_tsk_thread_flag [2019-10-03 01:46:24,364 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2019-10-03 01:46:24,364 INFO L138 BoogieDeclarations]: Found implementation of procedure need_resched [2019-10-03 01:46:24,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-03 01:46:24,369 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-03 01:46:24,369 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2019-10-03 01:46:24,369 INFO L138 BoogieDeclarations]: Found implementation of procedure file_inode [2019-10-03 01:46:24,369 INFO L138 BoogieDeclarations]: Found implementation of procedure register_chrdev [2019-10-03 01:46:24,369 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev [2019-10-03 01:46:24,370 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2019-10-03 01:46:24,370 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-10-03 01:46:24,370 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2019-10-03 01:46:24,370 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_yield_blocking [2019-10-03 01:46:24,370 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_claim_parport_or_block [2019-10-03 01:46:24,370 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_release_parport [2019-10-03 01:46:24,371 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_preempt [2019-10-03 01:46:24,371 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_negotiate [2019-10-03 01:46:24,371 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_reset [2019-10-03 01:46:24,371 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_error [2019-10-03 01:46:24,371 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_check_status [2019-10-03 01:46:24,371 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_wait_ready [2019-10-03 01:46:24,372 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_write [2019-10-03 01:46:24,372 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_read [2019-10-03 01:46:24,372 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_open [2019-10-03 01:46:24,372 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_release [2019-10-03 01:46:24,372 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_do_ioctl [2019-10-03 01:46:24,372 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_set_timeout [2019-10-03 01:46:24,373 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_ioctl [2019-10-03 01:46:24,373 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_compat_ioctl [2019-10-03 01:46:24,373 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_console_write [2019-10-03 01:46:24,373 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_register [2019-10-03 01:46:24,373 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_attach [2019-10-03 01:46:24,373 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_detach [2019-10-03 01:46:24,374 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_init [2019-10-03 01:46:24,374 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_init_module [2019-10-03 01:46:24,374 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_cleanup_module [2019-10-03 01:46:24,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_3 [2019-10-03 01:46:24,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_parport_driver_1 [2019-10-03 01:46:24,375 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 01:46:24,375 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-10-03 01:46:24,375 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-10-03 01:46:24,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_5 [2019-10-03 01:46:24,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_6 [2019-10-03 01:46:24,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2019-10-03 01:46:24,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_8 [2019-10-03 01:46:24,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_9 [2019-10-03 01:46:24,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_10 [2019-10-03 01:46:24,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2019-10-03 01:46:24,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_12 [2019-10-03 01:46:24,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_13 [2019-10-03 01:46:24,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_14 [2019-10-03 01:46:24,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_15 [2019-10-03 01:46:24,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_16 [2019-10-03 01:46:24,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_17 [2019-10-03 01:46:24,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_18 [2019-10-03 01:46:24,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_19 [2019-10-03 01:46:24,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_20 [2019-10-03 01:46:24,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_21 [2019-10-03 01:46:24,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_22 [2019-10-03 01:46:24,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_23 [2019-10-03 01:46:24,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_chrdev_24 [2019-10-03 01:46:24,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_25 [2019-10-03 01:46:24,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-03 01:46:24,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2019-10-03 01:46:24,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-03 01:46:24,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-03 01:46:24,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-03 01:46:24,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-03 01:46:24,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_i_mutex_of_inode [2019-10-03 01:46:24,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_i_mutex_of_inode [2019-10-03 01:46:24,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_i_mutex_of_inode [2019-10-03 01:46:24,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_i_mutex_of_inode [2019-10-03 01:46:24,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2019-10-03 01:46:24,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_i_mutex_of_inode [2019-10-03 01:46:24,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_i_mutex_of_inode [2019-10-03 01:46:24,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_i_mutex_of_inode [2019-10-03 01:46:24,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_i_mutex_of_inode [2019-10-03 01:46:24,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_i_mutex_of_inode [2019-10-03 01:46:24,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_i_mutex_of_inode [2019-10-03 01:46:24,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2019-10-03 01:46:24,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2019-10-03 01:46:24,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2019-10-03 01:46:24,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2019-10-03 01:46:24,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-10-03 01:46:24,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2019-10-03 01:46:24,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2019-10-03 01:46:24,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_lock [2019-10-03 01:46:24,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_lock [2019-10-03 01:46:24,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_lock [2019-10-03 01:46:24,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_lock [2019-10-03 01:46:24,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lp_mutex [2019-10-03 01:46:24,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lp_mutex [2019-10-03 01:46:24,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lp_mutex [2019-10-03 01:46:24,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lp_mutex [2019-10-03 01:46:24,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lp_mutex [2019-10-03 01:46:24,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lp_mutex [2019-10-03 01:46:24,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lp_mutex [2019-10-03 01:46:24,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_lp_mutex [2019-10-03 01:46:24,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_lp_mutex [2019-10-03 01:46:24,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_lp_mutex [2019-10-03 01:46:24,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_lp_mutex [2019-10-03 01:46:24,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-10-03 01:46:24,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2019-10-03 01:46:24,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2019-10-03 01:46:24,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2019-10-03 01:46:24,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-10-03 01:46:24,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2019-10-03 01:46:24,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2019-10-03 01:46:24,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_mutex_of_device [2019-10-03 01:46:24,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_mutex_of_device [2019-10-03 01:46:24,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2019-10-03 01:46:24,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_mutex_of_device [2019-10-03 01:46:24,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_port_mutex_of_lp_struct [2019-10-03 01:46:24,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_port_mutex_of_lp_struct [2019-10-03 01:46:24,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_port_mutex_of_lp_struct [2019-10-03 01:46:24,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_port_mutex_of_lp_struct [2019-10-03 01:46:24,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_port_mutex_of_lp_struct [2019-10-03 01:46:24,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_port_mutex_of_lp_struct [2019-10-03 01:46:24,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_port_mutex_of_lp_struct [2019-10-03 01:46:24,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_port_mutex_of_lp_struct [2019-10-03 01:46:24,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_port_mutex_of_lp_struct [2019-10-03 01:46:24,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_port_mutex_of_lp_struct [2019-10-03 01:46:24,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_port_mutex_of_lp_struct [2019-10-03 01:46:24,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-03 01:46:24,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ___might_sleep [2019-10-03 01:46:24,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __class_create [2019-10-03 01:46:24,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2019-10-03 01:46:24,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user_overflow [2019-10-03 01:46:24,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user_overflow [2019-10-03 01:46:24,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-10-03 01:46:24,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2019-10-03 01:46:24,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2019-10-03 01:46:24,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __parport_register_driver [2019-10-03 01:46:24,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __register_chrdev [2019-10-03 01:46:24,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __unregister_chrdev [2019-10-03 01:46:24,411 INFO L138 BoogieDeclarations]: Found implementation of procedure _cond_resched [2019-10-03 01:46:24,411 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2019-10-03 01:46:24,411 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-10-03 01:46:24,411 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2019-10-03 01:46:24,412 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_get_timeval [2019-10-03 01:46:24,412 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create [2019-10-03 01:46:24,412 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2019-10-03 01:46:24,412 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2019-10-03 01:46:24,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_close_1 [2019-10-03 01:46:24,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-03 01:46:24,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_open_1 [2019-10-03 01:46:24,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_1 [2019-10-03 01:46:24,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_2 [2019-10-03 01:46:24,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_1 [2019-10-03 01:46:24,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_2 [2019-10-03 01:46:24,413 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2019-10-03 01:46:24,413 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2019-10-03 01:46:24,414 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2019-10-03 01:46:24,414 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-03 01:46:24,414 INFO L138 BoogieDeclarations]: Found implementation of procedure noop_llseek [2019-10-03 01:46:24,414 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_claim [2019-10-03 01:46:24,414 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_claim_or_block [2019-10-03 01:46:24,414 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_negotiate [2019-10-03 01:46:24,414 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_read [2019-10-03 01:46:24,414 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_register_device [2019-10-03 01:46:24,415 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_release [2019-10-03 01:46:24,415 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_set_timeout [2019-10-03 01:46:24,415 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_unregister_device [2019-10-03 01:46:24,415 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_unregister_driver [2019-10-03 01:46:24,415 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_write [2019-10-03 01:46:24,415 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2019-10-03 01:46:24,415 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-03 01:46:24,415 INFO L138 BoogieDeclarations]: Found implementation of procedure register_console [2019-10-03 01:46:24,416 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2019-10-03 01:46:24,416 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2019-10-03 01:46:24,416 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2019-10-03 01:46:24,416 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_console [2019-10-03 01:46:24,416 INFO L138 BoogieDeclarations]: Found implementation of procedure autoremove_wake_function [2019-10-03 01:46:24,416 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-03 01:46:24,416 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-03 01:46:24,417 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-03 01:46:24,417 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-03 01:46:24,417 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 01:46:24,417 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-03 01:46:24,417 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2019-10-03 01:46:24,417 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2019-10-03 01:46:24,417 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2019-10-03 01:46:24,418 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2019-10-03 01:46:24,418 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-03 01:46:24,418 INFO L130 BoogieDeclarations]: Found specification of procedure ___might_sleep [2019-10-03 01:46:24,418 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2019-10-03 01:46:24,420 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2019-10-03 01:46:24,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-03 01:46:24,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-03 01:46:24,420 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-10-03 01:46:24,420 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2019-10-03 01:46:24,420 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-03 01:46:24,420 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2019-10-03 01:46:24,421 INFO L130 BoogieDeclarations]: Found specification of procedure memchr [2019-10-03 01:46:24,421 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-10-03 01:46:24,421 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-10-03 01:46:24,421 INFO L130 BoogieDeclarations]: Found specification of procedure current_top_of_stack [2019-10-03 01:46:24,421 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2019-10-03 01:46:24,421 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2019-10-03 01:46:24,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_10 [2019-10-03 01:46:24,422 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-03 01:46:24,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_6 [2019-10-03 01:46:24,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2019-10-03 01:46:24,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2019-10-03 01:46:24,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_13 [2019-10-03 01:46:24,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_15 [2019-10-03 01:46:24,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_17 [2019-10-03 01:46:24,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_19 [2019-10-03 01:46:24,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_21 [2019-10-03 01:46:24,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_23 [2019-10-03 01:46:24,423 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 01:46:24,423 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-03 01:46:24,423 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 01:46:24,423 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-03 01:46:24,424 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-03 01:46:24,424 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-03 01:46:24,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-03 01:46:24,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 01:46:24,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-03 01:46:24,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-03 01:46:24,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-10-03 01:46:24,425 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-10-03 01:46:24,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-03 01:46:24,425 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-03 01:46:24,425 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-03 01:46:24,425 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-03 01:46:24,425 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-03 01:46:24,425 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2019-10-03 01:46:24,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_12 [2019-10-03 01:46:24,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_14 [2019-10-03 01:46:24,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_18 [2019-10-03 01:46:24,426 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2019-10-03 01:46:24,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_5 [2019-10-03 01:46:24,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_8 [2019-10-03 01:46:24,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_9 [2019-10-03 01:46:24,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_16 [2019-10-03 01:46:24,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_20 [2019-10-03 01:46:24,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_22 [2019-10-03 01:46:24,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_i_mutex_of_inode [2019-10-03 01:46:24,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_i_mutex_of_inode [2019-10-03 01:46:24,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2019-10-03 01:46:24,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2019-10-03 01:46:24,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lp_mutex [2019-10-03 01:46:24,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lp_mutex [2019-10-03 01:46:24,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2019-10-03 01:46:24,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2019-10-03 01:46:24,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2019-10-03 01:46:24,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_port_mutex_of_lp_struct [2019-10-03 01:46:24,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_port_mutex_of_lp_struct [2019-10-03 01:46:24,434 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2019-10-03 01:46:24,436 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2019-10-03 01:46:24,437 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-10-03 01:46:24,437 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2019-10-03 01:46:24,437 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2019-10-03 01:46:24,437 INFO L130 BoogieDeclarations]: Found specification of procedure autoremove_wake_function [2019-10-03 01:46:24,437 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2019-10-03 01:46:24,437 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2019-10-03 01:46:24,437 INFO L130 BoogieDeclarations]: Found specification of procedure test_tsk_thread_flag [2019-10-03 01:46:24,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 01:46:24,438 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2019-10-03 01:46:24,438 INFO L130 BoogieDeclarations]: Found specification of procedure _cond_resched [2019-10-03 01:46:24,438 INFO L130 BoogieDeclarations]: Found specification of procedure need_resched [2019-10-03 01:46:24,438 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-03 01:46:24,439 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-03 01:46:24,439 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-03 01:46:24,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_3 [2019-10-03 01:46:24,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_parport_driver_1 [2019-10-03 01:46:24,439 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2019-10-03 01:46:24,439 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2019-10-03 01:46:24,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 01:46:24,439 INFO L130 BoogieDeclarations]: Found specification of procedure file_inode [2019-10-03 01:46:24,440 INFO L130 BoogieDeclarations]: Found specification of procedure __register_chrdev [2019-10-03 01:46:24,440 INFO L130 BoogieDeclarations]: Found specification of procedure __unregister_chrdev [2019-10-03 01:46:24,440 INFO L130 BoogieDeclarations]: Found specification of procedure register_chrdev [2019-10-03 01:46:24,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_chrdev_24 [2019-10-03 01:46:24,440 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev [2019-10-03 01:46:24,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_25 [2019-10-03 01:46:24,440 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2019-10-03 01:46:24,441 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2019-10-03 01:46:24,441 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-10-03 01:46:24,441 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user_overflow [2019-10-03 01:46:24,441 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user_overflow [2019-10-03 01:46:24,441 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2019-10-03 01:46:24,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 01:46:24,441 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-10-03 01:46:24,441 INFO L130 BoogieDeclarations]: Found specification of procedure register_console [2019-10-03 01:46:24,442 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_console [2019-10-03 01:46:24,442 INFO L130 BoogieDeclarations]: Found specification of procedure __class_create [2019-10-03 01:46:24,442 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2019-10-03 01:46:24,442 INFO L130 BoogieDeclarations]: Found specification of procedure device_create [2019-10-03 01:46:24,442 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2019-10-03 01:46:24,442 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2019-10-03 01:46:24,442 INFO L130 BoogieDeclarations]: Found specification of procedure compat_get_timeval [2019-10-03 01:46:24,443 INFO L130 BoogieDeclarations]: Found specification of procedure __parport_register_driver [2019-10-03 01:46:24,443 INFO L130 BoogieDeclarations]: Found specification of procedure parport_unregister_driver [2019-10-03 01:46:24,443 INFO L130 BoogieDeclarations]: Found specification of procedure parport_register_device [2019-10-03 01:46:24,443 INFO L130 BoogieDeclarations]: Found specification of procedure parport_unregister_device [2019-10-03 01:46:24,443 INFO L130 BoogieDeclarations]: Found specification of procedure parport_claim [2019-10-03 01:46:24,443 INFO L130 BoogieDeclarations]: Found specification of procedure parport_claim_or_block [2019-10-03 01:46:24,443 INFO L130 BoogieDeclarations]: Found specification of procedure parport_release [2019-10-03 01:46:24,444 INFO L130 BoogieDeclarations]: Found specification of procedure parport_yield_blocking [2019-10-03 01:46:24,444 INFO L130 BoogieDeclarations]: Found specification of procedure parport_negotiate [2019-10-03 01:46:24,444 INFO L130 BoogieDeclarations]: Found specification of procedure parport_write [2019-10-03 01:46:24,444 INFO L130 BoogieDeclarations]: Found specification of procedure parport_read [2019-10-03 01:46:24,444 INFO L130 BoogieDeclarations]: Found specification of procedure parport_set_timeout [2019-10-03 01:46:24,444 INFO L130 BoogieDeclarations]: Found specification of procedure lp_claim_parport_or_block [2019-10-03 01:46:24,444 INFO L130 BoogieDeclarations]: Found specification of procedure lp_release_parport [2019-10-03 01:46:24,445 INFO L130 BoogieDeclarations]: Found specification of procedure lp_preempt [2019-10-03 01:46:24,445 INFO L130 BoogieDeclarations]: Found specification of procedure lp_negotiate [2019-10-03 01:46:24,445 INFO L130 BoogieDeclarations]: Found specification of procedure lp_reset [2019-10-03 01:46:24,445 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2019-10-03 01:46:24,445 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2019-10-03 01:46:24,445 INFO L130 BoogieDeclarations]: Found specification of procedure lp_error [2019-10-03 01:46:24,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 01:46:24,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 01:46:24,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 01:46:24,446 INFO L130 BoogieDeclarations]: Found specification of procedure lp_check_status [2019-10-03 01:46:24,446 INFO L130 BoogieDeclarations]: Found specification of procedure lp_wait_ready [2019-10-03 01:46:24,446 INFO L130 BoogieDeclarations]: Found specification of procedure lp_write [2019-10-03 01:46:24,446 INFO L130 BoogieDeclarations]: Found specification of procedure lp_read [2019-10-03 01:46:24,446 INFO L130 BoogieDeclarations]: Found specification of procedure lp_open [2019-10-03 01:46:24,447 INFO L130 BoogieDeclarations]: Found specification of procedure lp_release [2019-10-03 01:46:24,447 INFO L130 BoogieDeclarations]: Found specification of procedure lp_do_ioctl [2019-10-03 01:46:24,447 INFO L130 BoogieDeclarations]: Found specification of procedure lp_set_timeout [2019-10-03 01:46:24,447 INFO L130 BoogieDeclarations]: Found specification of procedure lp_ioctl [2019-10-03 01:46:24,447 INFO L130 BoogieDeclarations]: Found specification of procedure lp_compat_ioctl [2019-10-03 01:46:24,447 INFO L130 BoogieDeclarations]: Found specification of procedure lp_console_write [2019-10-03 01:46:24,447 INFO L130 BoogieDeclarations]: Found specification of procedure lp_register [2019-10-03 01:46:24,447 INFO L130 BoogieDeclarations]: Found specification of procedure lp_attach [2019-10-03 01:46:24,448 INFO L130 BoogieDeclarations]: Found specification of procedure lp_detach [2019-10-03 01:46:24,448 INFO L130 BoogieDeclarations]: Found specification of procedure lp_init [2019-10-03 01:46:24,448 INFO L130 BoogieDeclarations]: Found specification of procedure lp_init_module [2019-10-03 01:46:24,448 INFO L130 BoogieDeclarations]: Found specification of procedure lp_cleanup_module [2019-10-03 01:46:24,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_open_1 [2019-10-03 01:46:24,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_1 [2019-10-03 01:46:24,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_1 [2019-10-03 01:46:24,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_2 [2019-10-03 01:46:24,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-03 01:46:24,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_close_1 [2019-10-03 01:46:24,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-03 01:46:24,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_2 [2019-10-03 01:46:24,449 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 01:46:24,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-03 01:46:24,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2019-10-03 01:46:24,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-03 01:46:24,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-03 01:46:24,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_i_mutex_of_inode [2019-10-03 01:46:24,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_i_mutex_of_inode [2019-10-03 01:46:24,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_i_mutex_of_inode [2019-10-03 01:46:24,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2019-10-03 01:46:24,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_i_mutex_of_inode [2019-10-03 01:46:24,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_i_mutex_of_inode [2019-10-03 01:46:24,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_i_mutex_of_inode [2019-10-03 01:46:24,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_i_mutex_of_inode [2019-10-03 01:46:24,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_i_mutex_of_inode [2019-10-03 01:46:24,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2019-10-03 01:46:24,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2019-10-03 01:46:24,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2019-10-03 01:46:24,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-10-03 01:46:24,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2019-10-03 01:46:24,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_lock [2019-10-03 01:46:24,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_lock [2019-10-03 01:46:24,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_lock [2019-10-03 01:46:24,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_lock [2019-10-03 01:46:24,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lp_mutex [2019-10-03 01:46:24,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lp_mutex [2019-10-03 01:46:24,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lp_mutex [2019-10-03 01:46:24,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lp_mutex [2019-10-03 01:46:24,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lp_mutex [2019-10-03 01:46:24,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_lp_mutex [2019-10-03 01:46:24,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_lp_mutex [2019-10-03 01:46:24,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_lp_mutex [2019-10-03 01:46:24,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_lp_mutex [2019-10-03 01:46:24,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-10-03 01:46:24,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2019-10-03 01:46:24,454 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-10-03 01:46:24,454 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2019-10-03 01:46:24,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_mutex_of_device [2019-10-03 01:46:24,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_mutex_of_device [2019-10-03 01:46:24,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2019-10-03 01:46:24,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_mutex_of_device [2019-10-03 01:46:24,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_port_mutex_of_lp_struct [2019-10-03 01:46:24,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_port_mutex_of_lp_struct [2019-10-03 01:46:24,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_port_mutex_of_lp_struct [2019-10-03 01:46:24,456 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_port_mutex_of_lp_struct [2019-10-03 01:46:24,456 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_port_mutex_of_lp_struct [2019-10-03 01:46:24,456 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_port_mutex_of_lp_struct [2019-10-03 01:46:24,456 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_port_mutex_of_lp_struct [2019-10-03 01:46:24,456 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_port_mutex_of_lp_struct [2019-10-03 01:46:24,456 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_port_mutex_of_lp_struct [2019-10-03 01:46:24,456 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-03 01:46:24,456 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-10-03 01:46:24,457 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 01:46:24,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 01:46:24,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-03 01:46:24,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-03 01:46:24,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 01:46:25,595 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-03 01:46:28,782 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 01:46:28,783 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-03 01:46:28,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 01:46:28 BoogieIcfgContainer [2019-10-03 01:46:28,786 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 01:46:28,787 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 01:46:28,787 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 01:46:28,791 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 01:46:28,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 01:46:21" (1/3) ... [2019-10-03 01:46:28,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f1b6291 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 01:46:28, skipping insertion in model container [2019-10-03 01:46:28,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 01:46:23" (2/3) ... [2019-10-03 01:46:28,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f1b6291 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 01:46:28, skipping insertion in model container [2019-10-03 01:46:28,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 01:46:28" (3/3) ... [2019-10-03 01:46:28,795 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--char--lp.ko-entry_point.cil.out.i [2019-10-03 01:46:28,808 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 01:46:28,821 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 01:46:28,841 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 01:46:28,871 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 01:46:28,871 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 01:46:28,871 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 01:46:28,872 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 01:46:28,872 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 01:46:28,872 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 01:46:28,872 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 01:46:28,872 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 01:46:28,916 INFO L276 IsEmpty]: Start isEmpty. Operand 1356 states. [2019-10-03 01:46:28,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2019-10-03 01:46:28,942 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 01:46:28,944 INFO L411 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 01:46:28,946 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 01:46:28,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 01:46:28,952 INFO L82 PathProgramCache]: Analyzing trace with hash -1131162688, now seen corresponding path program 1 times [2019-10-03 01:46:28,955 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 01:46:29,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:46:29,047 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 01:46:29,047 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:46:29,047 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 01:46:29,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 01:46:30,118 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2019-10-03 01:46:30,121 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 01:46:30,121 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 01:46:30,122 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 01:46:30,130 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 01:46:30,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 01:46:30,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 01:46:30,155 INFO L87 Difference]: Start difference. First operand 1356 states. Second operand 7 states. [2019-10-03 01:46:30,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 01:46:30,665 INFO L93 Difference]: Finished difference Result 1119 states and 1451 transitions. [2019-10-03 01:46:30,670 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 01:46:30,672 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 199 [2019-10-03 01:46:30,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 01:46:30,714 INFO L225 Difference]: With dead ends: 1119 [2019-10-03 01:46:30,715 INFO L226 Difference]: Without dead ends: 1099 [2019-10-03 01:46:30,717 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2019-10-03 01:46:30,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1099 states. [2019-10-03 01:46:30,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1099 to 1086. [2019-10-03 01:46:30,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1086 states. [2019-10-03 01:46:30,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1086 states to 1086 states and 1410 transitions. [2019-10-03 01:46:30,868 INFO L78 Accepts]: Start accepts. Automaton has 1086 states and 1410 transitions. Word has length 199 [2019-10-03 01:46:30,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 01:46:30,878 INFO L475 AbstractCegarLoop]: Abstraction has 1086 states and 1410 transitions. [2019-10-03 01:46:30,879 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 01:46:30,879 INFO L276 IsEmpty]: Start isEmpty. Operand 1086 states and 1410 transitions. [2019-10-03 01:46:30,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-10-03 01:46:30,898 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 01:46:30,898 INFO L411 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 01:46:30,899 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 01:46:30,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 01:46:30,902 INFO L82 PathProgramCache]: Analyzing trace with hash -1594662336, now seen corresponding path program 1 times [2019-10-03 01:46:30,903 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 01:46:30,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:46:30,919 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 01:46:30,920 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:46:30,920 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 01:46:31,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 01:46:31,330 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2019-10-03 01:46:31,331 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 01:46:31,331 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 01:46:31,331 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 01:46:31,333 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 01:46:31,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 01:46:31,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 01:46:31,334 INFO L87 Difference]: Start difference. First operand 1086 states and 1410 transitions. Second operand 3 states. [2019-10-03 01:46:31,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 01:46:31,578 INFO L93 Difference]: Finished difference Result 1427 states and 1836 transitions. [2019-10-03 01:46:31,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 01:46:31,578 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 200 [2019-10-03 01:46:31,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 01:46:31,590 INFO L225 Difference]: With dead ends: 1427 [2019-10-03 01:46:31,590 INFO L226 Difference]: Without dead ends: 1427 [2019-10-03 01:46:31,591 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 01:46:31,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1427 states. [2019-10-03 01:46:31,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1427 to 1378. [2019-10-03 01:46:31,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1378 states. [2019-10-03 01:46:31,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1378 states to 1378 states and 1780 transitions. [2019-10-03 01:46:31,644 INFO L78 Accepts]: Start accepts. Automaton has 1378 states and 1780 transitions. Word has length 200 [2019-10-03 01:46:31,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 01:46:31,645 INFO L475 AbstractCegarLoop]: Abstraction has 1378 states and 1780 transitions. [2019-10-03 01:46:31,645 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 01:46:31,646 INFO L276 IsEmpty]: Start isEmpty. Operand 1378 states and 1780 transitions. [2019-10-03 01:46:31,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2019-10-03 01:46:31,649 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 01:46:31,649 INFO L411 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 01:46:31,649 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 01:46:31,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 01:46:31,650 INFO L82 PathProgramCache]: Analyzing trace with hash -1658027202, now seen corresponding path program 1 times [2019-10-03 01:46:31,650 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 01:46:31,661 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:46:31,661 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 01:46:31,662 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:46:31,662 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 01:46:31,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 01:46:32,028 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2019-10-03 01:46:32,028 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 01:46:32,029 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 01:46:32,029 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 01:46:32,029 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 01:46:32,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 01:46:32,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 01:46:32,030 INFO L87 Difference]: Start difference. First operand 1378 states and 1780 transitions. Second operand 3 states. [2019-10-03 01:46:32,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 01:46:32,055 INFO L93 Difference]: Finished difference Result 1377 states and 1778 transitions. [2019-10-03 01:46:32,056 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 01:46:32,056 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 205 [2019-10-03 01:46:32,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 01:46:32,066 INFO L225 Difference]: With dead ends: 1377 [2019-10-03 01:46:32,066 INFO L226 Difference]: Without dead ends: 1377 [2019-10-03 01:46:32,067 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 01:46:32,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1377 states. [2019-10-03 01:46:32,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1377 to 1377. [2019-10-03 01:46:32,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1377 states. [2019-10-03 01:46:32,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1377 states to 1377 states and 1778 transitions. [2019-10-03 01:46:32,118 INFO L78 Accepts]: Start accepts. Automaton has 1377 states and 1778 transitions. Word has length 205 [2019-10-03 01:46:32,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 01:46:32,119 INFO L475 AbstractCegarLoop]: Abstraction has 1377 states and 1778 transitions. [2019-10-03 01:46:32,119 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 01:46:32,119 INFO L276 IsEmpty]: Start isEmpty. Operand 1377 states and 1778 transitions. [2019-10-03 01:46:32,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2019-10-03 01:46:32,124 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 01:46:32,125 INFO L411 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 01:46:32,125 INFO L418 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 01:46:32,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 01:46:32,126 INFO L82 PathProgramCache]: Analyzing trace with hash 140209147, now seen corresponding path program 1 times [2019-10-03 01:46:32,126 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 01:46:32,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:46:32,139 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 01:46:32,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:46:32,140 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 01:46:32,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 01:46:32,540 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2019-10-03 01:46:32,541 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 01:46:32,541 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 01:46:32,542 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 01:46:32,542 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 01:46:32,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 01:46:32,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 01:46:32,544 INFO L87 Difference]: Start difference. First operand 1377 states and 1778 transitions. Second operand 3 states. [2019-10-03 01:46:32,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 01:46:32,574 INFO L93 Difference]: Finished difference Result 1376 states and 1776 transitions. [2019-10-03 01:46:32,574 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 01:46:32,574 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 206 [2019-10-03 01:46:32,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 01:46:32,585 INFO L225 Difference]: With dead ends: 1376 [2019-10-03 01:46:32,585 INFO L226 Difference]: Without dead ends: 1376 [2019-10-03 01:46:32,586 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 01:46:32,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1376 states. [2019-10-03 01:46:32,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1376 to 1376. [2019-10-03 01:46:32,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1376 states. [2019-10-03 01:46:32,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1376 states to 1376 states and 1776 transitions. [2019-10-03 01:46:32,636 INFO L78 Accepts]: Start accepts. Automaton has 1376 states and 1776 transitions. Word has length 206 [2019-10-03 01:46:32,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 01:46:32,637 INFO L475 AbstractCegarLoop]: Abstraction has 1376 states and 1776 transitions. [2019-10-03 01:46:32,637 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 01:46:32,638 INFO L276 IsEmpty]: Start isEmpty. Operand 1376 states and 1776 transitions. [2019-10-03 01:46:32,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2019-10-03 01:46:32,642 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 01:46:32,642 INFO L411 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 01:46:32,642 INFO L418 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 01:46:32,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 01:46:32,643 INFO L82 PathProgramCache]: Analyzing trace with hash 50965985, now seen corresponding path program 1 times [2019-10-03 01:46:32,643 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 01:46:32,656 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:46:32,656 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 01:46:32,656 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:46:32,656 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 01:46:32,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 01:46:33,181 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2019-10-03 01:46:33,181 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 01:46:33,182 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 01:46:33,182 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 01:46:33,182 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 01:46:33,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 01:46:33,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 01:46:33,183 INFO L87 Difference]: Start difference. First operand 1376 states and 1776 transitions. Second operand 3 states. [2019-10-03 01:46:33,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 01:46:33,221 INFO L93 Difference]: Finished difference Result 1502 states and 1901 transitions. [2019-10-03 01:46:33,222 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 01:46:33,222 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 207 [2019-10-03 01:46:33,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 01:46:33,231 INFO L225 Difference]: With dead ends: 1502 [2019-10-03 01:46:33,231 INFO L226 Difference]: Without dead ends: 1502 [2019-10-03 01:46:33,232 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 01:46:33,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1502 states. [2019-10-03 01:46:33,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1502 to 1498. [2019-10-03 01:46:33,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1498 states. [2019-10-03 01:46:33,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1498 states to 1498 states and 1898 transitions. [2019-10-03 01:46:33,286 INFO L78 Accepts]: Start accepts. Automaton has 1498 states and 1898 transitions. Word has length 207 [2019-10-03 01:46:33,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 01:46:33,287 INFO L475 AbstractCegarLoop]: Abstraction has 1498 states and 1898 transitions. [2019-10-03 01:46:33,287 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 01:46:33,287 INFO L276 IsEmpty]: Start isEmpty. Operand 1498 states and 1898 transitions. [2019-10-03 01:46:33,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2019-10-03 01:46:33,291 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 01:46:33,291 INFO L411 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 01:46:33,291 INFO L418 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 01:46:33,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 01:46:33,292 INFO L82 PathProgramCache]: Analyzing trace with hash 1579400126, now seen corresponding path program 1 times [2019-10-03 01:46:33,292 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 01:46:33,304 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:46:33,304 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 01:46:33,304 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:46:33,305 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 01:46:33,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 01:46:33,675 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2019-10-03 01:46:33,675 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 01:46:33,676 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 01:46:33,676 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 01:46:33,676 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 01:46:33,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 01:46:33,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 01:46:33,677 INFO L87 Difference]: Start difference. First operand 1498 states and 1898 transitions. Second operand 3 states. [2019-10-03 01:46:33,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 01:46:33,703 INFO L93 Difference]: Finished difference Result 1497 states and 1896 transitions. [2019-10-03 01:46:33,703 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 01:46:33,703 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 208 [2019-10-03 01:46:33,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 01:46:33,713 INFO L225 Difference]: With dead ends: 1497 [2019-10-03 01:46:33,713 INFO L226 Difference]: Without dead ends: 1497 [2019-10-03 01:46:33,713 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 01:46:33,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1497 states. [2019-10-03 01:46:33,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1497 to 1497. [2019-10-03 01:46:33,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1497 states. [2019-10-03 01:46:33,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1497 states to 1497 states and 1896 transitions. [2019-10-03 01:46:33,762 INFO L78 Accepts]: Start accepts. Automaton has 1497 states and 1896 transitions. Word has length 208 [2019-10-03 01:46:33,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 01:46:33,762 INFO L475 AbstractCegarLoop]: Abstraction has 1497 states and 1896 transitions. [2019-10-03 01:46:33,763 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 01:46:33,763 INFO L276 IsEmpty]: Start isEmpty. Operand 1497 states and 1896 transitions. [2019-10-03 01:46:33,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2019-10-03 01:46:33,766 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 01:46:33,766 INFO L411 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 01:46:33,767 INFO L418 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 01:46:33,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 01:46:33,767 INFO L82 PathProgramCache]: Analyzing trace with hash 1716223108, now seen corresponding path program 1 times [2019-10-03 01:46:33,767 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 01:46:33,778 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:46:33,778 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 01:46:33,778 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:46:33,778 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 01:46:33,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 01:46:34,114 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2019-10-03 01:46:34,114 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 01:46:34,115 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 01:46:34,115 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 01:46:34,115 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 01:46:34,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 01:46:34,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 01:46:34,116 INFO L87 Difference]: Start difference. First operand 1497 states and 1896 transitions. Second operand 3 states. [2019-10-03 01:46:34,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 01:46:34,258 INFO L93 Difference]: Finished difference Result 2909 states and 3706 transitions. [2019-10-03 01:46:34,258 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 01:46:34,259 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 209 [2019-10-03 01:46:34,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 01:46:34,279 INFO L225 Difference]: With dead ends: 2909 [2019-10-03 01:46:34,279 INFO L226 Difference]: Without dead ends: 2866 [2019-10-03 01:46:34,280 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 01:46:34,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2866 states. [2019-10-03 01:46:34,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2866 to 2858. [2019-10-03 01:46:34,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2858 states. [2019-10-03 01:46:34,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2858 states to 2858 states and 3647 transitions. [2019-10-03 01:46:34,403 INFO L78 Accepts]: Start accepts. Automaton has 2858 states and 3647 transitions. Word has length 209 [2019-10-03 01:46:34,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 01:46:34,404 INFO L475 AbstractCegarLoop]: Abstraction has 2858 states and 3647 transitions. [2019-10-03 01:46:34,405 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 01:46:34,405 INFO L276 IsEmpty]: Start isEmpty. Operand 2858 states and 3647 transitions. [2019-10-03 01:46:34,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2019-10-03 01:46:34,415 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 01:46:34,416 INFO L411 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 01:46:34,416 INFO L418 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 01:46:34,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 01:46:34,417 INFO L82 PathProgramCache]: Analyzing trace with hash 2122150103, now seen corresponding path program 1 times [2019-10-03 01:46:34,417 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 01:46:34,431 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:46:34,431 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 01:46:34,432 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:46:34,432 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 01:46:34,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 01:46:34,816 INFO L134 CoverageAnalysis]: Checked inductivity of 579 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 576 trivial. 0 not checked. [2019-10-03 01:46:34,817 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 01:46:34,817 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 01:46:34,817 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 01:46:34,818 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 01:46:34,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 01:46:34,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 01:46:34,819 INFO L87 Difference]: Start difference. First operand 2858 states and 3647 transitions. Second operand 3 states. [2019-10-03 01:46:34,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 01:46:34,966 INFO L93 Difference]: Finished difference Result 2870 states and 3665 transitions. [2019-10-03 01:46:34,969 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 01:46:34,969 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 280 [2019-10-03 01:46:34,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 01:46:34,988 INFO L225 Difference]: With dead ends: 2870 [2019-10-03 01:46:34,989 INFO L226 Difference]: Without dead ends: 2870 [2019-10-03 01:46:34,989 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 01:46:34,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2870 states. [2019-10-03 01:46:35,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2870 to 2860. [2019-10-03 01:46:35,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2860 states. [2019-10-03 01:46:35,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2860 states to 2860 states and 3649 transitions. [2019-10-03 01:46:35,086 INFO L78 Accepts]: Start accepts. Automaton has 2860 states and 3649 transitions. Word has length 280 [2019-10-03 01:46:35,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 01:46:35,087 INFO L475 AbstractCegarLoop]: Abstraction has 2860 states and 3649 transitions. [2019-10-03 01:46:35,087 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 01:46:35,088 INFO L276 IsEmpty]: Start isEmpty. Operand 2860 states and 3649 transitions. [2019-10-03 01:46:35,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2019-10-03 01:46:35,094 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 01:46:35,094 INFO L411 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 01:46:35,095 INFO L418 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 01:46:35,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 01:46:35,095 INFO L82 PathProgramCache]: Analyzing trace with hash 201455321, now seen corresponding path program 1 times [2019-10-03 01:46:35,095 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 01:46:35,106 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:46:35,106 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 01:46:35,106 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:46:35,107 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 01:46:35,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 01:46:35,495 INFO L134 CoverageAnalysis]: Checked inductivity of 583 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 580 trivial. 0 not checked. [2019-10-03 01:46:35,495 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 01:46:35,496 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 01:46:35,496 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 01:46:35,497 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 01:46:35,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 01:46:35,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 01:46:35,498 INFO L87 Difference]: Start difference. First operand 2860 states and 3649 transitions. Second operand 3 states. [2019-10-03 01:46:35,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 01:46:35,773 INFO L93 Difference]: Finished difference Result 2871 states and 3655 transitions. [2019-10-03 01:46:35,774 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 01:46:35,774 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 295 [2019-10-03 01:46:35,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 01:46:35,793 INFO L225 Difference]: With dead ends: 2871 [2019-10-03 01:46:35,793 INFO L226 Difference]: Without dead ends: 2869 [2019-10-03 01:46:35,794 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 01:46:35,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2869 states. [2019-10-03 01:46:35,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2869 to 2850. [2019-10-03 01:46:35,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2850 states. [2019-10-03 01:46:35,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2850 states to 2850 states and 3633 transitions. [2019-10-03 01:46:35,908 INFO L78 Accepts]: Start accepts. Automaton has 2850 states and 3633 transitions. Word has length 295 [2019-10-03 01:46:35,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 01:46:35,909 INFO L475 AbstractCegarLoop]: Abstraction has 2850 states and 3633 transitions. [2019-10-03 01:46:35,909 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 01:46:35,909 INFO L276 IsEmpty]: Start isEmpty. Operand 2850 states and 3633 transitions. [2019-10-03 01:46:35,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2019-10-03 01:46:35,917 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 01:46:35,918 INFO L411 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 01:46:35,918 INFO L418 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 01:46:35,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 01:46:35,919 INFO L82 PathProgramCache]: Analyzing trace with hash 1283149470, now seen corresponding path program 1 times [2019-10-03 01:46:35,919 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 01:46:35,932 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:46:35,933 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 01:46:35,933 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:46:35,933 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 01:46:36,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 01:46:36,461 INFO L134 CoverageAnalysis]: Checked inductivity of 655 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 652 trivial. 0 not checked. [2019-10-03 01:46:36,461 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 01:46:36,462 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 01:46:36,462 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 01:46:36,463 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 01:46:36,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 01:46:36,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 01:46:36,463 INFO L87 Difference]: Start difference. First operand 2850 states and 3633 transitions. Second operand 7 states. [2019-10-03 01:46:36,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 01:46:36,794 INFO L93 Difference]: Finished difference Result 2874 states and 3655 transitions. [2019-10-03 01:46:36,795 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 01:46:36,795 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 310 [2019-10-03 01:46:36,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 01:46:36,815 INFO L225 Difference]: With dead ends: 2874 [2019-10-03 01:46:36,815 INFO L226 Difference]: Without dead ends: 2863 [2019-10-03 01:46:36,815 INFO L640 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 [2019-10-03 01:46:36,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2863 states. [2019-10-03 01:46:36,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2863 to 2852. [2019-10-03 01:46:36,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2852 states. [2019-10-03 01:46:36,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2852 states to 2852 states and 3631 transitions. [2019-10-03 01:46:36,936 INFO L78 Accepts]: Start accepts. Automaton has 2852 states and 3631 transitions. Word has length 310 [2019-10-03 01:46:36,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 01:46:36,937 INFO L475 AbstractCegarLoop]: Abstraction has 2852 states and 3631 transitions. [2019-10-03 01:46:36,937 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 01:46:36,937 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states and 3631 transitions. [2019-10-03 01:46:36,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2019-10-03 01:46:36,944 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 01:46:36,945 INFO L411 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 01:46:36,945 INFO L418 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 01:46:36,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 01:46:36,946 INFO L82 PathProgramCache]: Analyzing trace with hash -1881382031, now seen corresponding path program 1 times [2019-10-03 01:46:36,946 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 01:46:36,956 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:46:36,957 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 01:46:36,957 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:46:36,957 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 01:46:37,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 01:46:37,380 INFO L134 CoverageAnalysis]: Checked inductivity of 655 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 655 trivial. 0 not checked. [2019-10-03 01:46:37,380 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 01:46:37,381 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 01:46:37,381 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 01:46:37,381 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 01:46:37,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 01:46:37,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 01:46:37,382 INFO L87 Difference]: Start difference. First operand 2852 states and 3631 transitions. Second operand 3 states. [2019-10-03 01:46:37,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 01:46:37,623 INFO L93 Difference]: Finished difference Result 2857 states and 3633 transitions. [2019-10-03 01:46:37,624 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 01:46:37,624 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 339 [2019-10-03 01:46:37,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 01:46:37,644 INFO L225 Difference]: With dead ends: 2857 [2019-10-03 01:46:37,644 INFO L226 Difference]: Without dead ends: 2857 [2019-10-03 01:46:37,645 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 01:46:37,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2857 states. [2019-10-03 01:46:37,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2857 to 2851. [2019-10-03 01:46:37,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2851 states. [2019-10-03 01:46:37,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2851 states to 2851 states and 3628 transitions. [2019-10-03 01:46:37,740 INFO L78 Accepts]: Start accepts. Automaton has 2851 states and 3628 transitions. Word has length 339 [2019-10-03 01:46:37,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 01:46:37,741 INFO L475 AbstractCegarLoop]: Abstraction has 2851 states and 3628 transitions. [2019-10-03 01:46:37,741 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 01:46:37,741 INFO L276 IsEmpty]: Start isEmpty. Operand 2851 states and 3628 transitions. [2019-10-03 01:46:37,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2019-10-03 01:46:37,752 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 01:46:37,752 INFO L411 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 01:46:37,753 INFO L418 AbstractCegarLoop]: === Iteration 12 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 01:46:37,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 01:46:37,753 INFO L82 PathProgramCache]: Analyzing trace with hash 1076184062, now seen corresponding path program 1 times [2019-10-03 01:46:37,753 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 01:46:37,764 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:46:37,764 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 01:46:37,764 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:46:37,764 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 01:46:37,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 01:46:38,393 INFO L134 CoverageAnalysis]: Checked inductivity of 655 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 652 trivial. 0 not checked. [2019-10-03 01:46:38,393 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 01:46:38,393 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 01:46:38,394 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 01:46:38,395 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 01:46:38,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 01:46:38,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 01:46:38,396 INFO L87 Difference]: Start difference. First operand 2851 states and 3628 transitions. Second operand 3 states. [2019-10-03 01:46:38,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 01:46:38,742 INFO L93 Difference]: Finished difference Result 4141 states and 5236 transitions. [2019-10-03 01:46:38,743 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 01:46:38,743 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 371 [2019-10-03 01:46:38,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 01:46:38,772 INFO L225 Difference]: With dead ends: 4141 [2019-10-03 01:46:38,772 INFO L226 Difference]: Without dead ends: 4141 [2019-10-03 01:46:38,773 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 01:46:38,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4141 states. [2019-10-03 01:46:38,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4141 to 4060. [2019-10-03 01:46:38,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4060 states. [2019-10-03 01:46:38,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4060 states to 4060 states and 5149 transitions. [2019-10-03 01:46:38,915 INFO L78 Accepts]: Start accepts. Automaton has 4060 states and 5149 transitions. Word has length 371 [2019-10-03 01:46:38,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 01:46:38,916 INFO L475 AbstractCegarLoop]: Abstraction has 4060 states and 5149 transitions. [2019-10-03 01:46:38,916 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 01:46:38,916 INFO L276 IsEmpty]: Start isEmpty. Operand 4060 states and 5149 transitions. [2019-10-03 01:46:38,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2019-10-03 01:46:38,929 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 01:46:38,929 INFO L411 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 01:46:38,930 INFO L418 AbstractCegarLoop]: === Iteration 13 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 01:46:38,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 01:46:38,930 INFO L82 PathProgramCache]: Analyzing trace with hash -1257917440, now seen corresponding path program 1 times [2019-10-03 01:46:38,931 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 01:46:38,946 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:46:38,947 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 01:46:38,947 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:46:38,947 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 01:46:39,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 01:46:39,450 INFO L134 CoverageAnalysis]: Checked inductivity of 655 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 655 trivial. 0 not checked. [2019-10-03 01:46:39,451 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 01:46:39,451 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 01:46:39,451 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 01:46:39,453 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 01:46:39,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 01:46:39,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 01:46:39,454 INFO L87 Difference]: Start difference. First operand 4060 states and 5149 transitions. Second operand 3 states. [2019-10-03 01:46:39,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 01:46:39,823 INFO L93 Difference]: Finished difference Result 4062 states and 5118 transitions. [2019-10-03 01:46:39,824 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 01:46:39,824 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 370 [2019-10-03 01:46:39,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 01:46:39,867 INFO L225 Difference]: With dead ends: 4062 [2019-10-03 01:46:39,867 INFO L226 Difference]: Without dead ends: 4062 [2019-10-03 01:46:39,868 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 01:46:39,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4062 states. [2019-10-03 01:46:40,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4062 to 4054. [2019-10-03 01:46:40,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4054 states. [2019-10-03 01:46:40,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4054 states to 4054 states and 5111 transitions. [2019-10-03 01:46:40,038 INFO L78 Accepts]: Start accepts. Automaton has 4054 states and 5111 transitions. Word has length 370 [2019-10-03 01:46:40,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 01:46:40,039 INFO L475 AbstractCegarLoop]: Abstraction has 4054 states and 5111 transitions. [2019-10-03 01:46:40,039 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 01:46:40,039 INFO L276 IsEmpty]: Start isEmpty. Operand 4054 states and 5111 transitions. [2019-10-03 01:46:40,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2019-10-03 01:46:40,050 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 01:46:40,051 INFO L411 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 01:46:40,051 INFO L418 AbstractCegarLoop]: === Iteration 14 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 01:46:40,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 01:46:40,052 INFO L82 PathProgramCache]: Analyzing trace with hash 467563457, now seen corresponding path program 1 times [2019-10-03 01:46:40,052 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 01:46:40,065 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:46:40,066 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 01:46:40,066 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:46:40,066 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 01:46:40,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 01:46:40,665 INFO L134 CoverageAnalysis]: Checked inductivity of 655 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 655 trivial. 0 not checked. [2019-10-03 01:46:40,665 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 01:46:40,665 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 01:46:40,665 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 01:46:40,666 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 01:46:40,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 01:46:40,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 01:46:40,667 INFO L87 Difference]: Start difference. First operand 4054 states and 5111 transitions. Second operand 7 states. [2019-10-03 01:46:40,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 01:46:40,747 INFO L93 Difference]: Finished difference Result 3705 states and 4623 transitions. [2019-10-03 01:46:40,747 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 01:46:40,747 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 370 [2019-10-03 01:46:40,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 01:46:40,765 INFO L225 Difference]: With dead ends: 3705 [2019-10-03 01:46:40,766 INFO L226 Difference]: Without dead ends: 3705 [2019-10-03 01:46:40,767 INFO L640 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 [2019-10-03 01:46:40,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3705 states. [2019-10-03 01:46:40,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3705 to 3701. [2019-10-03 01:46:40,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3701 states. [2019-10-03 01:46:40,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3701 states to 3701 states and 4619 transitions. [2019-10-03 01:46:40,888 INFO L78 Accepts]: Start accepts. Automaton has 3701 states and 4619 transitions. Word has length 370 [2019-10-03 01:46:40,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 01:46:40,889 INFO L475 AbstractCegarLoop]: Abstraction has 3701 states and 4619 transitions. [2019-10-03 01:46:40,889 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 01:46:40,889 INFO L276 IsEmpty]: Start isEmpty. Operand 3701 states and 4619 transitions. [2019-10-03 01:46:40,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2019-10-03 01:46:40,905 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 01:46:40,906 INFO L411 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 01:46:40,906 INFO L418 AbstractCegarLoop]: === Iteration 15 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 01:46:40,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 01:46:40,907 INFO L82 PathProgramCache]: Analyzing trace with hash -2079234813, now seen corresponding path program 1 times [2019-10-03 01:46:40,907 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 01:46:40,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:46:40,919 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 01:46:40,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:46:40,919 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 01:46:41,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 01:46:41,462 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 664 trivial. 0 not checked. [2019-10-03 01:46:41,462 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 01:46:41,462 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 01:46:41,462 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 01:46:41,463 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 01:46:41,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 01:46:41,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 01:46:41,464 INFO L87 Difference]: Start difference. First operand 3701 states and 4619 transitions. Second operand 7 states. [2019-10-03 01:46:41,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 01:46:41,546 INFO L93 Difference]: Finished difference Result 3698 states and 4614 transitions. [2019-10-03 01:46:41,547 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 01:46:41,547 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 381 [2019-10-03 01:46:41,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 01:46:41,578 INFO L225 Difference]: With dead ends: 3698 [2019-10-03 01:46:41,578 INFO L226 Difference]: Without dead ends: 3698 [2019-10-03 01:46:41,581 INFO L640 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 [2019-10-03 01:46:41,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3698 states. [2019-10-03 01:46:41,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3698 to 3694. [2019-10-03 01:46:41,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3694 states. [2019-10-03 01:46:41,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3694 states to 3694 states and 4610 transitions. [2019-10-03 01:46:41,687 INFO L78 Accepts]: Start accepts. Automaton has 3694 states and 4610 transitions. Word has length 381 [2019-10-03 01:46:41,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 01:46:41,688 INFO L475 AbstractCegarLoop]: Abstraction has 3694 states and 4610 transitions. [2019-10-03 01:46:41,688 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 01:46:41,688 INFO L276 IsEmpty]: Start isEmpty. Operand 3694 states and 4610 transitions. [2019-10-03 01:46:41,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2019-10-03 01:46:41,710 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 01:46:41,711 INFO L411 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 01:46:41,711 INFO L418 AbstractCegarLoop]: === Iteration 16 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 01:46:41,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 01:46:41,712 INFO L82 PathProgramCache]: Analyzing trace with hash -688784290, now seen corresponding path program 1 times [2019-10-03 01:46:41,712 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 01:46:41,724 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:46:41,724 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 01:46:41,724 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:46:41,725 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 01:46:41,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 01:46:42,400 INFO L134 CoverageAnalysis]: Checked inductivity of 698 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 681 trivial. 0 not checked. [2019-10-03 01:46:42,402 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 01:46:42,402 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 01:46:42,402 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 01:46:42,403 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 01:46:42,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 01:46:42,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 01:46:42,404 INFO L87 Difference]: Start difference. First operand 3694 states and 4610 transitions. Second operand 3 states. [2019-10-03 01:46:42,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 01:46:42,457 INFO L93 Difference]: Finished difference Result 3697 states and 4604 transitions. [2019-10-03 01:46:42,458 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 01:46:42,458 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 442 [2019-10-03 01:46:42,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 01:46:42,475 INFO L225 Difference]: With dead ends: 3697 [2019-10-03 01:46:42,475 INFO L226 Difference]: Without dead ends: 3697 [2019-10-03 01:46:42,476 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 01:46:42,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3697 states. [2019-10-03 01:46:42,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3697 to 3694. [2019-10-03 01:46:42,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3694 states. [2019-10-03 01:46:42,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3694 states to 3694 states and 4601 transitions. [2019-10-03 01:46:42,594 INFO L78 Accepts]: Start accepts. Automaton has 3694 states and 4601 transitions. Word has length 442 [2019-10-03 01:46:42,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 01:46:42,595 INFO L475 AbstractCegarLoop]: Abstraction has 3694 states and 4601 transitions. [2019-10-03 01:46:42,595 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 01:46:42,596 INFO L276 IsEmpty]: Start isEmpty. Operand 3694 states and 4601 transitions. [2019-10-03 01:46:42,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 446 [2019-10-03 01:46:42,624 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 01:46:42,625 INFO L411 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 01:46:42,626 INFO L418 AbstractCegarLoop]: === Iteration 17 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 01:46:42,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 01:46:42,626 INFO L82 PathProgramCache]: Analyzing trace with hash 1442207147, now seen corresponding path program 1 times [2019-10-03 01:46:42,626 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 01:46:42,639 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:46:42,640 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 01:46:42,640 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:46:42,640 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 01:46:42,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 01:46:43,220 INFO L134 CoverageAnalysis]: Checked inductivity of 698 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 681 trivial. 0 not checked. [2019-10-03 01:46:43,220 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 01:46:43,220 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 01:46:43,221 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 01:46:43,221 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 01:46:43,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 01:46:43,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 01:46:43,222 INFO L87 Difference]: Start difference. First operand 3694 states and 4601 transitions. Second operand 7 states. [2019-10-03 01:46:43,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 01:46:43,309 INFO L93 Difference]: Finished difference Result 3693 states and 4599 transitions. [2019-10-03 01:46:43,310 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 01:46:43,310 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 445 [2019-10-03 01:46:43,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 01:46:43,325 INFO L225 Difference]: With dead ends: 3693 [2019-10-03 01:46:43,326 INFO L226 Difference]: Without dead ends: 3693 [2019-10-03 01:46:43,326 INFO L640 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 [2019-10-03 01:46:43,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3693 states. [2019-10-03 01:46:43,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3693 to 3691. [2019-10-03 01:46:43,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3691 states. [2019-10-03 01:46:43,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3691 states to 3691 states and 4597 transitions. [2019-10-03 01:46:43,430 INFO L78 Accepts]: Start accepts. Automaton has 3691 states and 4597 transitions. Word has length 445 [2019-10-03 01:46:43,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 01:46:43,431 INFO L475 AbstractCegarLoop]: Abstraction has 3691 states and 4597 transitions. [2019-10-03 01:46:43,431 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 01:46:43,431 INFO L276 IsEmpty]: Start isEmpty. Operand 3691 states and 4597 transitions. [2019-10-03 01:46:43,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 455 [2019-10-03 01:46:43,448 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 01:46:43,448 INFO L411 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 01:46:43,449 INFO L418 AbstractCegarLoop]: === Iteration 18 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 01:46:43,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 01:46:43,449 INFO L82 PathProgramCache]: Analyzing trace with hash -394108846, now seen corresponding path program 1 times [2019-10-03 01:46:43,449 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 01:46:43,460 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:46:43,461 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 01:46:43,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:46:43,461 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 01:46:43,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 01:46:44,249 INFO L134 CoverageAnalysis]: Checked inductivity of 672 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 672 trivial. 0 not checked. [2019-10-03 01:46:44,250 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 01:46:44,250 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 01:46:44,250 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 01:46:44,252 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 01:46:44,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 01:46:44,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 01:46:44,253 INFO L87 Difference]: Start difference. First operand 3691 states and 4597 transitions. Second operand 7 states. [2019-10-03 01:46:44,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 01:46:44,361 INFO L93 Difference]: Finished difference Result 3562 states and 4433 transitions. [2019-10-03 01:46:44,362 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 01:46:44,362 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 454 [2019-10-03 01:46:44,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 01:46:44,377 INFO L225 Difference]: With dead ends: 3562 [2019-10-03 01:46:44,378 INFO L226 Difference]: Without dead ends: 3562 [2019-10-03 01:46:44,378 INFO L640 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 [2019-10-03 01:46:44,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3562 states. [2019-10-03 01:46:44,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3562 to 3560. [2019-10-03 01:46:44,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3560 states. [2019-10-03 01:46:44,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3560 states to 3560 states and 4431 transitions. [2019-10-03 01:46:44,479 INFO L78 Accepts]: Start accepts. Automaton has 3560 states and 4431 transitions. Word has length 454 [2019-10-03 01:46:44,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 01:46:44,480 INFO L475 AbstractCegarLoop]: Abstraction has 3560 states and 4431 transitions. [2019-10-03 01:46:44,480 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 01:46:44,480 INFO L276 IsEmpty]: Start isEmpty. Operand 3560 states and 4431 transitions. [2019-10-03 01:46:44,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2019-10-03 01:46:44,499 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 01:46:44,500 INFO L411 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 01:46:44,500 INFO L418 AbstractCegarLoop]: === Iteration 19 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 01:46:44,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 01:46:44,501 INFO L82 PathProgramCache]: Analyzing trace with hash 1179539241, now seen corresponding path program 1 times [2019-10-03 01:46:44,501 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 01:46:44,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:46:44,511 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 01:46:44,511 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:46:44,512 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 01:46:44,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 01:46:45,055 INFO L134 CoverageAnalysis]: Checked inductivity of 678 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 678 trivial. 0 not checked. [2019-10-03 01:46:45,055 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 01:46:45,055 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 01:46:45,056 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 01:46:45,056 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 01:46:45,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 01:46:45,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 01:46:45,057 INFO L87 Difference]: Start difference. First operand 3560 states and 4431 transitions. Second operand 7 states. [2019-10-03 01:46:45,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 01:46:45,139 INFO L93 Difference]: Finished difference Result 3551 states and 4419 transitions. [2019-10-03 01:46:45,140 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 01:46:45,140 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 474 [2019-10-03 01:46:45,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 01:46:45,155 INFO L225 Difference]: With dead ends: 3551 [2019-10-03 01:46:45,155 INFO L226 Difference]: Without dead ends: 3551 [2019-10-03 01:46:45,156 INFO L640 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 [2019-10-03 01:46:45,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3551 states. [2019-10-03 01:46:45,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3551 to 3549. [2019-10-03 01:46:45,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3549 states. [2019-10-03 01:46:45,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3549 states to 3549 states and 4416 transitions. [2019-10-03 01:46:45,253 INFO L78 Accepts]: Start accepts. Automaton has 3549 states and 4416 transitions. Word has length 474 [2019-10-03 01:46:45,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 01:46:45,254 INFO L475 AbstractCegarLoop]: Abstraction has 3549 states and 4416 transitions. [2019-10-03 01:46:45,254 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 01:46:45,254 INFO L276 IsEmpty]: Start isEmpty. Operand 3549 states and 4416 transitions. [2019-10-03 01:46:45,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2019-10-03 01:46:45,267 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 01:46:45,267 INFO L411 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 01:46:45,267 INFO L418 AbstractCegarLoop]: === Iteration 20 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 01:46:45,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 01:46:45,268 INFO L82 PathProgramCache]: Analyzing trace with hash -395200200, now seen corresponding path program 1 times [2019-10-03 01:46:45,268 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 01:46:45,275 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:46:45,275 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 01:46:45,276 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:46:45,276 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 01:46:45,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 01:46:45,936 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 698 trivial. 0 not checked. [2019-10-03 01:46:45,937 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 01:46:45,937 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 01:46:45,937 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 01:46:45,938 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 01:46:45,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 01:46:45,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 01:46:45,939 INFO L87 Difference]: Start difference. First operand 3549 states and 4416 transitions. Second operand 7 states. [2019-10-03 01:46:46,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 01:46:46,006 INFO L93 Difference]: Finished difference Result 2227 states and 2740 transitions. [2019-10-03 01:46:46,007 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 01:46:46,007 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 486 [2019-10-03 01:46:46,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 01:46:46,008 INFO L225 Difference]: With dead ends: 2227 [2019-10-03 01:46:46,008 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 01:46:46,009 INFO L640 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 [2019-10-03 01:46:46,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 01:46:46,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 01:46:46,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 01:46:46,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 01:46:46,010 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 486 [2019-10-03 01:46:46,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 01:46:46,010 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 01:46:46,010 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 01:46:46,010 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 01:46:46,011 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 01:46:46,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 01:46:46 BoogieIcfgContainer [2019-10-03 01:46:46,017 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 01:46:46,026 INFO L168 Benchmark]: Toolchain (without parser) took 24805.71 ms. Allocated memory was 136.8 MB in the beginning and 1.2 GB in the end (delta: 1.0 GB). Free memory was 76.9 MB in the beginning and 851.3 MB in the end (delta: -774.3 MB). Peak memory consumption was 241.2 MB. Max. memory is 7.1 GB. [2019-10-03 01:46:46,033 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 136.8 MB. Free memory is still 102.9 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-03 01:46:46,034 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2763.21 ms. Allocated memory was 136.8 MB in the beginning and 273.7 MB in the end (delta: 136.8 MB). Free memory was 76.5 MB in the beginning and 187.5 MB in the end (delta: -111.0 MB). Peak memory consumption was 107.4 MB. Max. memory is 7.1 GB. [2019-10-03 01:46:46,040 INFO L168 Benchmark]: Boogie Preprocessor took 294.20 ms. Allocated memory is still 273.7 MB. Free memory was 187.5 MB in the beginning and 166.8 MB in the end (delta: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. [2019-10-03 01:46:46,041 INFO L168 Benchmark]: RCFGBuilder took 4513.00 ms. Allocated memory was 273.7 MB in the beginning and 384.3 MB in the end (delta: 110.6 MB). Free memory was 166.8 MB in the beginning and 76.8 MB in the end (delta: 90.0 MB). Peak memory consumption was 200.6 MB. Max. memory is 7.1 GB. [2019-10-03 01:46:46,042 INFO L168 Benchmark]: TraceAbstraction took 17230.26 ms. Allocated memory was 384.3 MB in the beginning and 1.2 GB in the end (delta: 768.1 MB). Free memory was 76.8 MB in the beginning and 851.3 MB in the end (delta: -774.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-10-03 01:46:46,050 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 136.8 MB. Free memory is still 102.9 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2763.21 ms. Allocated memory was 136.8 MB in the beginning and 273.7 MB in the end (delta: 136.8 MB). Free memory was 76.5 MB in the beginning and 187.5 MB in the end (delta: -111.0 MB). Peak memory consumption was 107.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 294.20 ms. Allocated memory is still 273.7 MB. Free memory was 187.5 MB in the beginning and 166.8 MB in the end (delta: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4513.00 ms. Allocated memory was 273.7 MB in the beginning and 384.3 MB in the end (delta: 110.6 MB). Free memory was 166.8 MB in the beginning and 76.8 MB in the end (delta: 90.0 MB). Peak memory consumption was 200.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 17230.26 ms. Allocated memory was 384.3 MB in the beginning and 1.2 GB in the end (delta: 768.1 MB). Free memory was 76.8 MB in the beginning and 851.3 MB in the end (delta: -774.4 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5326]: 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 198 procedures, 1510 locations, 1 error locations. SAFE Result, 17.1s OverallTime, 20 OverallIterations, 9 TraceHistogramMax, 3.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 29945 SDtfs, 11058 SDslu, 64861 SDs, 0 SdLazy, 294 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4060occurred in iteration=12, 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, 20 MinimizatonAttempts, 226 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.7s SsaConstructionTime, 2.8s SatisfiabilityAnalysisTime, 5.0s InterpolantComputationTime, 6451 NumberOfCodeBlocks, 6451 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 6431 ConstructedInterpolants, 0 QuantifiedInterpolants, 2487941 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 PerfectInterpolantSequences, 11801/11801 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...