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--md--dm-raid.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 01:53:19,405 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 01:53:19,407 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 01:53:19,421 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 01:53:19,422 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 01:53:19,423 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 01:53:19,424 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 01:53:19,426 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 01:53:19,428 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 01:53:19,429 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 01:53:19,430 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 01:53:19,431 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 01:53:19,431 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 01:53:19,432 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 01:53:19,433 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 01:53:19,434 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 01:53:19,437 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 01:53:19,438 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 01:53:19,444 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 01:53:19,449 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 01:53:19,454 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 01:53:19,455 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 01:53:19,456 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 01:53:19,457 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 01:53:19,460 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 01:53:19,461 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 01:53:19,461 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 01:53:19,464 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 01:53:19,465 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 01:53:19,466 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 01:53:19,466 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 01:53:19,469 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 01:53:19,470 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 01:53:19,470 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 01:53:19,473 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 01:53:19,473 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 01:53:19,475 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 01:53:19,475 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 01:53:19,475 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 01:53:19,477 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 01:53:19,478 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 01:53:19,478 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 01:53:19,510 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 01:53:19,510 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 01:53:19,511 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 01:53:19,512 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 01:53:19,512 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 01:53:19,512 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 01:53:19,513 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 01:53:19,513 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 01:53:19,513 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 01:53:19,513 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 01:53:19,516 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 01:53:19,516 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 01:53:19,516 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 01:53:19,517 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 01:53:19,517 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 01:53:19,517 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 01:53:19,517 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 01:53:19,517 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 01:53:19,517 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 01:53:19,518 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 01:53:19,518 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 01:53:19,518 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 01:53:19,518 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 01:53:19,519 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 01:53:19,519 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 01:53:19,519 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 01:53:19,519 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 01:53:19,520 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 01:53:19,520 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 01:53:19,520 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 01:53:19,577 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 01:53:19,595 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 01:53:19,600 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 01:53:19,602 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 01:53:19,602 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 01:53:19,603 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-raid.ko-entry_point.cil.out.i [2019-10-03 01:53:19,670 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1235a4f8a/ffc7c87117994538bb8de31bcd251b6f/FLAG2afb7edfc [2019-10-03 01:53:20,559 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 01:53:20,559 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-raid.ko-entry_point.cil.out.i [2019-10-03 01:53:20,602 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1235a4f8a/ffc7c87117994538bb8de31bcd251b6f/FLAG2afb7edfc [2019-10-03 01:53:21,108 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1235a4f8a/ffc7c87117994538bb8de31bcd251b6f [2019-10-03 01:53:21,119 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 01:53:21,120 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 01:53:21,121 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 01:53:21,121 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 01:53:21,125 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 01:53:21,126 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 01:53:21" (1/1) ... [2019-10-03 01:53:21,129 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cfed6bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 01:53:21, skipping insertion in model container [2019-10-03 01:53:21,129 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 01:53:21" (1/1) ... [2019-10-03 01:53:21,138 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 01:53:21,323 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 01:53:23,515 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 01:53:23,533 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 01:53:24,074 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 01:53:24,333 INFO L192 MainTranslator]: Completed translation [2019-10-03 01:53:24,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 01:53:24 WrapperNode [2019-10-03 01:53:24,334 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 01:53:24,336 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 01:53:24,336 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 01:53:24,336 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 01:53:24,351 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 01:53:24" (1/1) ... [2019-10-03 01:53:24,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 01:53:24" (1/1) ... [2019-10-03 01:53:24,462 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 01:53:24" (1/1) ... [2019-10-03 01:53:24,463 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 01:53:24" (1/1) ... [2019-10-03 01:53:24,598 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 01:53:24" (1/1) ... [2019-10-03 01:53:24,631 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 01:53:24" (1/1) ... [2019-10-03 01:53:24,666 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 01:53:24" (1/1) ... [2019-10-03 01:53:24,700 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 01:53:24,701 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 01:53:24,701 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 01:53:24,701 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 01:53:24,703 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 01:53:24" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 01:53:24,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 01:53:24,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 01:53:24,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2019-10-03 01:53:24,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~sector_t~0~X~~sector_t~0~X~$Pointer$~TO~int [2019-10-03 01:53:24,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-10-03 01:53:24,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2019-10-03 01:53:24,776 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2019-10-03 01:53:24,776 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2019-10-03 01:53:24,776 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2019-10-03 01:53:24,777 INFO L138 BoogieDeclarations]: Found implementation of procedure fls [2019-10-03 01:53:24,777 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight32 [2019-10-03 01:53:24,777 INFO L138 BoogieDeclarations]: Found implementation of procedure is_power_of_2 [2019-10-03 01:53:24,777 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoul [2019-10-03 01:53:24,777 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2019-10-03 01:53:24,778 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2019-10-03 01:53:24,778 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2019-10-03 01:53:24,778 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic64_read [2019-10-03 01:53:24,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-03 01:53:24,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-03 01:53:24,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-10-03 01:53:24,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-10-03 01:53:24,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-03 01:53:24,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-03 01:53:24,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-03 01:53:24,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-03 01:53:24,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-03 01:53:24,781 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2019-10-03 01:53:24,781 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-03 01:53:24,781 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-03 01:53:24,781 INFO L138 BoogieDeclarations]: Found implementation of procedure i_size_read [2019-10-03 01:53:24,781 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2019-10-03 01:53:24,782 INFO L138 BoogieDeclarations]: Found implementation of procedure bdev_get_queue [2019-10-03 01:53:24,782 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_logical_block_size [2019-10-03 01:53:24,782 INFO L138 BoogieDeclarations]: Found implementation of procedure bdev_logical_block_size [2019-10-03 01:53:24,782 INFO L138 BoogieDeclarations]: Found implementation of procedure mddev_lock_nointr [2019-10-03 01:53:24,782 INFO L138 BoogieDeclarations]: Found implementation of procedure to_sector [2019-10-03 01:53:24,782 INFO L138 BoogieDeclarations]: Found implementation of procedure raid10_md_layout_to_format [2019-10-03 01:53:24,782 INFO L138 BoogieDeclarations]: Found implementation of procedure raid10_md_layout_to_copies [2019-10-03 01:53:24,783 INFO L138 BoogieDeclarations]: Found implementation of procedure raid10_format_to_md_layout [2019-10-03 01:53:24,783 INFO L138 BoogieDeclarations]: Found implementation of procedure get_raid_type [2019-10-03 01:53:24,783 INFO L138 BoogieDeclarations]: Found implementation of procedure context_alloc [2019-10-03 01:53:24,783 INFO L138 BoogieDeclarations]: Found implementation of procedure context_free [2019-10-03 01:53:24,783 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_parms [2019-10-03 01:53:24,783 INFO L138 BoogieDeclarations]: Found implementation of procedure validate_region_size [2019-10-03 01:53:24,783 INFO L138 BoogieDeclarations]: Found implementation of procedure validate_raid_redundancy [2019-10-03 01:53:24,784 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_raid_params [2019-10-03 01:53:24,784 INFO L138 BoogieDeclarations]: Found implementation of procedure do_table_event [2019-10-03 01:53:24,784 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_is_congested [2019-10-03 01:53:24,784 INFO L138 BoogieDeclarations]: Found implementation of procedure read_disk_sb [2019-10-03 01:53:24,784 INFO L138 BoogieDeclarations]: Found implementation of procedure super_sync [2019-10-03 01:53:24,784 INFO L138 BoogieDeclarations]: Found implementation of procedure super_load [2019-10-03 01:53:24,784 INFO L138 BoogieDeclarations]: Found implementation of procedure super_init_validation [2019-10-03 01:53:24,785 INFO L138 BoogieDeclarations]: Found implementation of procedure super_validate [2019-10-03 01:53:24,785 INFO L138 BoogieDeclarations]: Found implementation of procedure analyse_superblocks [2019-10-03 01:53:24,785 INFO L138 BoogieDeclarations]: Found implementation of procedure configure_discard_support [2019-10-03 01:53:24,785 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_ctr [2019-10-03 01:53:24,785 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_dtr [2019-10-03 01:53:24,785 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_map [2019-10-03 01:53:24,785 INFO L138 BoogieDeclarations]: Found implementation of procedure decipher_sync_action [2019-10-03 01:53:24,786 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_status [2019-10-03 01:53:24,786 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_message [2019-10-03 01:53:24,786 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_iterate_devices [2019-10-03 01:53:24,786 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_io_hints [2019-10-03 01:53:24,786 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_presuspend [2019-10-03 01:53:24,786 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_postsuspend [2019-10-03 01:53:24,787 INFO L138 BoogieDeclarations]: Found implementation of procedure attempt_restore_of_faulty_devices [2019-10-03 01:53:24,787 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_resume [2019-10-03 01:53:24,787 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_merge [2019-10-03 01:53:24,787 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_raid_init [2019-10-03 01:53:24,787 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_raid_exit [2019-10-03 01:53:24,787 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2019-10-03 01:53:24,788 INFO L138 BoogieDeclarations]: Found implementation of procedure invoke_work_1 [2019-10-03 01:53:24,788 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2019-10-03 01:53:24,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_target_type_2 [2019-10-03 01:53:24,788 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_1 [2019-10-03 01:53:24,788 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2019-10-03 01:53:24,788 INFO L138 BoogieDeclarations]: Found implementation of procedure work_init_1 [2019-10-03 01:53:24,789 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 01:53:24,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2019-10-03 01:53:24,789 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-10-03 01:53:24,789 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-10-03 01:53:24,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_work_on_5 [2019-10-03 01:53:24,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_delayed_work_on_6 [2019-10-03 01:53:24,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_work_on_7 [2019-10-03 01:53:24,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_8 [2019-10-03 01:53:24,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_delayed_work_on_9 [2019-10-03 01:53:24,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_10 [2019-10-03 01:53:24,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2019-10-03 01:53:24,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_12 [2019-10-03 01:53:24,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_13 [2019-10-03 01:53:24,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_14 [2019-10-03 01:53:24,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_15 [2019-10-03 01:53:24,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_16 [2019-10-03 01:53:24,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_17 [2019-10-03 01:53:24,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_18 [2019-10-03 01:53:24,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_20 [2019-10-03 01:53:24,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-03 01:53:24,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2019-10-03 01:53:24,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-03 01:53:24,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-03 01:53:24,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-03 01:53:24,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-03 01:53:24,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_i_mutex_of_inode [2019-10-03 01:53:24,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_i_mutex_of_inode [2019-10-03 01:53:24,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_i_mutex_of_inode [2019-10-03 01:53:24,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_i_mutex_of_inode [2019-10-03 01:53:24,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2019-10-03 01:53:24,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_i_mutex_of_inode [2019-10-03 01:53:24,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_i_mutex_of_inode [2019-10-03 01:53:24,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_i_mutex_of_inode [2019-10-03 01:53:24,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_i_mutex_of_inode [2019-10-03 01:53:24,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_i_mutex_of_inode [2019-10-03 01:53:24,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_i_mutex_of_inode [2019-10-03 01:53:24,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2019-10-03 01:53:24,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2019-10-03 01:53:24,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2019-10-03 01:53:24,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2019-10-03 01:53:24,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-10-03 01:53:24,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2019-10-03 01:53:24,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2019-10-03 01:53:24,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_lock [2019-10-03 01:53:24,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_lock [2019-10-03 01:53:24,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_lock [2019-10-03 01:53:24,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_lock [2019-10-03 01:53:24,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-10-03 01:53:24,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2019-10-03 01:53:24,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2019-10-03 01:53:24,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2019-10-03 01:53:24,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-10-03 01:53:24,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2019-10-03 01:53:24,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2019-10-03 01:53:24,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_mutex_of_device [2019-10-03 01:53:24,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_mutex_of_device [2019-10-03 01:53:24,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2019-10-03 01:53:24,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_mutex_of_device [2019-10-03 01:53:24,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_reconfig_mutex_of_mddev [2019-10-03 01:53:24,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_reconfig_mutex_of_mddev [2019-10-03 01:53:24,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_reconfig_mutex_of_mddev [2019-10-03 01:53:24,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_reconfig_mutex_of_mddev [2019-10-03 01:53:24,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_reconfig_mutex_of_mddev [2019-10-03 01:53:24,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_reconfig_mutex_of_mddev [2019-10-03 01:53:24,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_reconfig_mutex_of_mddev [2019-10-03 01:53:24,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_reconfig_mutex_of_mddev [2019-10-03 01:53:24,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_reconfig_mutex_of_mddev [2019-10-03 01:53:24,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_reconfig_mutex_of_mddev [2019-10-03 01:53:24,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_reconfig_mutex_of_mddev [2019-10-03 01:53:24,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-03 01:53:24,799 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2019-10-03 01:53:24,799 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-03 01:53:24,800 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2019-10-03 01:53:24,800 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2019-10-03 01:53:24,800 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages_current [2019-10-03 01:53:24,800 INFO L138 BoogieDeclarations]: Found implementation of procedure bitmap_load [2019-10-03 01:53:24,800 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_limits_io_min [2019-10-03 01:53:24,800 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_limits_io_opt [2019-10-03 01:53:24,800 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_get_device [2019-10-03 01:53:24,801 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_put_device [2019-10-03 01:53:24,801 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_register_target [2019-10-03 01:53:24,801 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_set_target_max_io_len [2019-10-03 01:53:24,801 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_table_add_target_callbacks [2019-10-03 01:53:24,801 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_table_event [2019-10-03 01:53:24,801 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_table_get_mode [2019-10-03 01:53:24,801 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_unregister_target [2019-10-03 01:53:24,802 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2019-10-03 01:53:24,802 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoull [2019-10-03 01:53:24,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-03 01:53:24,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_preresume_2 [2019-10-03 01:53:24,802 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2019-10-03 01:53:24,802 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2019-10-03 01:53:24,802 INFO L138 BoogieDeclarations]: Found implementation of procedure md_error [2019-10-03 01:53:24,802 INFO L138 BoogieDeclarations]: Found implementation of procedure md_rdev_clear [2019-10-03 01:53:24,803 INFO L138 BoogieDeclarations]: Found implementation of procedure md_rdev_init [2019-10-03 01:53:24,803 INFO L138 BoogieDeclarations]: Found implementation of procedure md_reap_sync_thread [2019-10-03 01:53:24,803 INFO L138 BoogieDeclarations]: Found implementation of procedure md_run [2019-10-03 01:53:24,803 INFO L138 BoogieDeclarations]: Found implementation of procedure md_stop [2019-10-03 01:53:24,803 INFO L138 BoogieDeclarations]: Found implementation of procedure md_stop_writes [2019-10-03 01:53:24,803 INFO L138 BoogieDeclarations]: Found implementation of procedure md_wakeup_thread [2019-10-03 01:53:24,803 INFO L138 BoogieDeclarations]: Found implementation of procedure mddev_congested [2019-10-03 01:53:24,804 INFO L138 BoogieDeclarations]: Found implementation of procedure mddev_init [2019-10-03 01:53:24,804 INFO L138 BoogieDeclarations]: Found implementation of procedure mddev_resume [2019-10-03 01:53:24,804 INFO L138 BoogieDeclarations]: Found implementation of procedure mddev_suspend [2019-10-03 01:53:24,804 INFO L138 BoogieDeclarations]: Found implementation of procedure mddev_unlock [2019-10-03 01:53:24,804 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2019-10-03 01:53:24,804 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2019-10-03 01:53:24,804 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2019-10-03 01:53:24,805 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-03 01:53:24,805 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-03 01:53:24,805 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2019-10-03 01:53:24,805 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2019-10-03 01:53:24,805 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2019-10-03 01:53:24,805 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_set_cache_size [2019-10-03 01:53:24,805 INFO L138 BoogieDeclarations]: Found implementation of procedure scnprintf [2019-10-03 01:53:24,805 INFO L138 BoogieDeclarations]: Found implementation of procedure strcasecmp [2019-10-03 01:53:24,806 INFO L138 BoogieDeclarations]: Found implementation of procedure sync_page_io [2019-10-03 01:53:24,806 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-03 01:53:24,806 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-03 01:53:24,806 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-03 01:53:24,806 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-03 01:53:24,806 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 01:53:24,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-03 01:53:24,807 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2019-10-03 01:53:24,807 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2019-10-03 01:53:24,807 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2019-10-03 01:53:24,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 01:53:24,807 INFO L130 BoogieDeclarations]: Found specification of procedure fls [2019-10-03 01:53:24,807 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight32 [2019-10-03 01:53:24,808 INFO L130 BoogieDeclarations]: Found specification of procedure is_power_of_2 [2019-10-03 01:53:24,808 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-03 01:53:24,808 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoull [2019-10-03 01:53:24,808 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoul [2019-10-03 01:53:24,808 INFO L130 BoogieDeclarations]: Found specification of procedure scnprintf [2019-10-03 01:53:24,808 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-03 01:53:24,808 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-03 01:53:24,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-03 01:53:24,809 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2019-10-03 01:53:24,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 01:53:24,809 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2019-10-03 01:53:24,809 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2019-10-03 01:53:24,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 01:53:24,809 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2019-10-03 01:53:24,810 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2019-10-03 01:53:24,810 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2019-10-03 01:53:24,810 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-03 01:53:24,810 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2019-10-03 01:53:24,810 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp [2019-10-03 01:53:24,810 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2019-10-03 01:53:24,810 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-10-03 01:53:24,810 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-10-03 01:53:24,811 INFO L130 BoogieDeclarations]: Found specification of procedure atomic64_read [2019-10-03 01:53:24,811 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2019-10-03 01:53:24,811 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2019-10-03 01:53:24,811 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_13 [2019-10-03 01:53:24,811 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_20 [2019-10-03 01:53:24,811 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-03 01:53:24,811 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2019-10-03 01:53:24,812 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_14 [2019-10-03 01:53:24,812 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_15 [2019-10-03 01:53:24,812 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 01:53:24,812 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-03 01:53:24,812 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 01:53:24,812 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-03 01:53:24,812 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-03 01:53:24,812 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-03 01:53:24,813 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-03 01:53:24,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 01:53:24,813 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-03 01:53:24,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-03 01:53:24,813 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-10-03 01:53:24,813 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-10-03 01:53:24,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-03 01:53:24,813 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-03 01:53:24,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-03 01:53:24,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-03 01:53:24,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-03 01:53:24,814 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2019-10-03 01:53:24,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_17 [2019-10-03 01:53:24,814 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2019-10-03 01:53:24,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_10 [2019-10-03 01:53:24,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_12 [2019-10-03 01:53:24,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_16 [2019-10-03 01:53:24,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_18 [2019-10-03 01:53:24,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_i_mutex_of_inode [2019-10-03 01:53:24,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_i_mutex_of_inode [2019-10-03 01:53:24,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2019-10-03 01:53:24,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2019-10-03 01:53:24,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2019-10-03 01:53:24,816 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2019-10-03 01:53:24,816 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2019-10-03 01:53:24,816 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_reconfig_mutex_of_mddev [2019-10-03 01:53:24,816 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_reconfig_mutex_of_mddev [2019-10-03 01:53:24,816 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_reconfig_mutex_of_mddev [2019-10-03 01:53:24,816 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2019-10-03 01:53:24,816 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2019-10-03 01:53:24,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_work_on_5 [2019-10-03 01:53:24,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_work_on_7 [2019-10-03 01:53:24,817 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2019-10-03 01:53:24,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_delayed_work_on_6 [2019-10-03 01:53:24,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_delayed_work_on_9 [2019-10-03 01:53:24,817 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2019-10-03 01:53:24,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_8 [2019-10-03 01:53:24,818 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages_current [2019-10-03 01:53:24,818 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2019-10-03 01:53:24,818 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-03 01:53:24,818 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-03 01:53:24,818 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-03 01:53:24,818 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-03 01:53:24,818 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2019-10-03 01:53:24,819 INFO L130 BoogieDeclarations]: Found specification of procedure invoke_work_1 [2019-10-03 01:53:24,819 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2019-10-03 01:53:24,819 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_target_type_2 [2019-10-03 01:53:24,819 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_1 [2019-10-03 01:53:24,819 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2019-10-03 01:53:24,819 INFO L130 BoogieDeclarations]: Found specification of procedure work_init_1 [2019-10-03 01:53:24,820 INFO L130 BoogieDeclarations]: Found specification of procedure i_size_read [2019-10-03 01:53:24,820 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2019-10-03 01:53:24,820 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2019-10-03 01:53:24,820 INFO L130 BoogieDeclarations]: Found specification of procedure bdev_get_queue [2019-10-03 01:53:24,820 INFO L130 BoogieDeclarations]: Found specification of procedure blk_limits_io_min [2019-10-03 01:53:24,820 INFO L130 BoogieDeclarations]: Found specification of procedure blk_limits_io_opt [2019-10-03 01:53:24,821 INFO L130 BoogieDeclarations]: Found specification of procedure queue_logical_block_size [2019-10-03 01:53:24,821 INFO L130 BoogieDeclarations]: Found specification of procedure bdev_logical_block_size [2019-10-03 01:53:24,821 INFO L130 BoogieDeclarations]: Found specification of procedure mddev_lock_nointr [2019-10-03 01:53:24,821 INFO L130 BoogieDeclarations]: Found specification of procedure mddev_unlock [2019-10-03 01:53:24,821 INFO L130 BoogieDeclarations]: Found specification of procedure md_wakeup_thread [2019-10-03 01:53:24,821 INFO L130 BoogieDeclarations]: Found specification of procedure md_reap_sync_thread [2019-10-03 01:53:24,821 INFO L130 BoogieDeclarations]: Found specification of procedure md_error [2019-10-03 01:53:24,822 INFO L130 BoogieDeclarations]: Found specification of procedure mddev_congested [2019-10-03 01:53:24,822 INFO L130 BoogieDeclarations]: Found specification of procedure sync_page_io [2019-10-03 01:53:24,822 INFO L130 BoogieDeclarations]: Found specification of procedure mddev_init [2019-10-03 01:53:24,822 INFO L130 BoogieDeclarations]: Found specification of procedure md_run [2019-10-03 01:53:24,822 INFO L130 BoogieDeclarations]: Found specification of procedure md_stop [2019-10-03 01:53:24,822 INFO L130 BoogieDeclarations]: Found specification of procedure md_stop_writes [2019-10-03 01:53:24,823 INFO L130 BoogieDeclarations]: Found specification of procedure md_rdev_init [2019-10-03 01:53:24,823 INFO L130 BoogieDeclarations]: Found specification of procedure md_rdev_clear [2019-10-03 01:53:24,823 INFO L130 BoogieDeclarations]: Found specification of procedure mddev_suspend [2019-10-03 01:53:24,823 INFO L130 BoogieDeclarations]: Found specification of procedure mddev_resume [2019-10-03 01:53:24,823 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_set_cache_size [2019-10-03 01:53:24,823 INFO L130 BoogieDeclarations]: Found specification of procedure bitmap_load [2019-10-03 01:53:24,824 INFO L130 BoogieDeclarations]: Found specification of procedure dm_get_device [2019-10-03 01:53:24,824 INFO L130 BoogieDeclarations]: Found specification of procedure dm_put_device [2019-10-03 01:53:24,824 INFO L130 BoogieDeclarations]: Found specification of procedure dm_register_target [2019-10-03 01:53:24,824 INFO L130 BoogieDeclarations]: Found specification of procedure dm_unregister_target [2019-10-03 01:53:24,824 INFO L130 BoogieDeclarations]: Found specification of procedure dm_table_add_target_callbacks [2019-10-03 01:53:24,824 INFO L130 BoogieDeclarations]: Found specification of procedure dm_set_target_max_io_len [2019-10-03 01:53:24,825 INFO L130 BoogieDeclarations]: Found specification of procedure dm_table_get_mode [2019-10-03 01:53:24,825 INFO L130 BoogieDeclarations]: Found specification of procedure dm_table_event [2019-10-03 01:53:24,825 INFO L130 BoogieDeclarations]: Found specification of procedure to_sector [2019-10-03 01:53:24,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 01:53:24,825 INFO L130 BoogieDeclarations]: Found specification of procedure raid10_md_layout_to_format [2019-10-03 01:53:24,825 INFO L130 BoogieDeclarations]: Found specification of procedure raid10_md_layout_to_copies [2019-10-03 01:53:24,826 INFO L130 BoogieDeclarations]: Found specification of procedure raid10_format_to_md_layout [2019-10-03 01:53:24,826 INFO L130 BoogieDeclarations]: Found specification of procedure get_raid_type [2019-10-03 01:53:24,826 INFO L130 BoogieDeclarations]: Found specification of procedure context_alloc [2019-10-03 01:53:24,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 01:53:24,826 INFO L130 BoogieDeclarations]: Found specification of procedure context_free [2019-10-03 01:53:24,827 INFO L130 BoogieDeclarations]: Found specification of procedure dev_parms [2019-10-03 01:53:24,827 INFO L130 BoogieDeclarations]: Found specification of procedure validate_region_size [2019-10-03 01:53:24,827 INFO L130 BoogieDeclarations]: Found specification of procedure validate_raid_redundancy [2019-10-03 01:53:24,827 INFO L130 BoogieDeclarations]: Found specification of procedure parse_raid_params [2019-10-03 01:53:24,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 01:53:24,827 INFO L130 BoogieDeclarations]: Found specification of procedure do_table_event [2019-10-03 01:53:24,828 INFO L130 BoogieDeclarations]: Found specification of procedure raid_is_congested [2019-10-03 01:53:24,828 INFO L130 BoogieDeclarations]: Found specification of procedure read_disk_sb [2019-10-03 01:53:24,828 INFO L130 BoogieDeclarations]: Found specification of procedure super_sync [2019-10-03 01:53:24,828 INFO L130 BoogieDeclarations]: Found specification of procedure super_load [2019-10-03 01:53:24,828 INFO L130 BoogieDeclarations]: Found specification of procedure super_init_validation [2019-10-03 01:53:24,828 INFO L130 BoogieDeclarations]: Found specification of procedure super_validate [2019-10-03 01:53:24,829 INFO L130 BoogieDeclarations]: Found specification of procedure analyse_superblocks [2019-10-03 01:53:24,829 INFO L130 BoogieDeclarations]: Found specification of procedure configure_discard_support [2019-10-03 01:53:24,829 INFO L130 BoogieDeclarations]: Found specification of procedure raid_ctr [2019-10-03 01:53:24,829 INFO L130 BoogieDeclarations]: Found specification of procedure raid_dtr [2019-10-03 01:53:24,829 INFO L130 BoogieDeclarations]: Found specification of procedure raid_map [2019-10-03 01:53:24,829 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2019-10-03 01:53:24,830 INFO L130 BoogieDeclarations]: Found specification of procedure decipher_sync_action [2019-10-03 01:53:24,830 INFO L130 BoogieDeclarations]: Found specification of procedure raid_status [2019-10-03 01:53:24,830 INFO L130 BoogieDeclarations]: Found specification of procedure raid_message [2019-10-03 01:53:24,830 INFO L130 BoogieDeclarations]: Found specification of procedure raid_iterate_devices [2019-10-03 01:53:24,830 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~sector_t~0~X~~sector_t~0~X~$Pointer$~TO~int [2019-10-03 01:53:24,831 INFO L130 BoogieDeclarations]: Found specification of procedure raid_io_hints [2019-10-03 01:53:24,831 INFO L130 BoogieDeclarations]: Found specification of procedure raid_presuspend [2019-10-03 01:53:24,831 INFO L130 BoogieDeclarations]: Found specification of procedure raid_postsuspend [2019-10-03 01:53:24,831 INFO L130 BoogieDeclarations]: Found specification of procedure attempt_restore_of_faulty_devices [2019-10-03 01:53:24,831 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-10-03 01:53:24,831 INFO L130 BoogieDeclarations]: Found specification of procedure raid_resume [2019-10-03 01:53:24,832 INFO L130 BoogieDeclarations]: Found specification of procedure raid_merge [2019-10-03 01:53:24,832 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2019-10-03 01:53:24,832 INFO L130 BoogieDeclarations]: Found specification of procedure dm_raid_init [2019-10-03 01:53:24,832 INFO L130 BoogieDeclarations]: Found specification of procedure dm_raid_exit [2019-10-03 01:53:24,832 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_preresume_2 [2019-10-03 01:53:24,832 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-03 01:53:24,832 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-03 01:53:24,833 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 01:53:24,833 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-03 01:53:24,833 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2019-10-03 01:53:24,833 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-03 01:53:24,833 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_i_mutex_of_inode [2019-10-03 01:53:24,833 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_i_mutex_of_inode [2019-10-03 01:53:24,834 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_i_mutex_of_inode [2019-10-03 01:53:24,834 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2019-10-03 01:53:24,834 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_i_mutex_of_inode [2019-10-03 01:53:24,834 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_i_mutex_of_inode [2019-10-03 01:53:24,834 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_i_mutex_of_inode [2019-10-03 01:53:24,834 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_i_mutex_of_inode [2019-10-03 01:53:24,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_i_mutex_of_inode [2019-10-03 01:53:24,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2019-10-03 01:53:24,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2019-10-03 01:53:24,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2019-10-03 01:53:24,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-10-03 01:53:24,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2019-10-03 01:53:24,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_lock [2019-10-03 01:53:24,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_lock [2019-10-03 01:53:24,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_lock [2019-10-03 01:53:24,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_lock [2019-10-03 01:53:24,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-10-03 01:53:24,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2019-10-03 01:53:24,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-10-03 01:53:24,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2019-10-03 01:53:24,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_mutex_of_device [2019-10-03 01:53:24,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_mutex_of_device [2019-10-03 01:53:24,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2019-10-03 01:53:24,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_mutex_of_device [2019-10-03 01:53:24,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_reconfig_mutex_of_mddev [2019-10-03 01:53:24,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_reconfig_mutex_of_mddev [2019-10-03 01:53:24,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_reconfig_mutex_of_mddev [2019-10-03 01:53:24,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_reconfig_mutex_of_mddev [2019-10-03 01:53:24,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_reconfig_mutex_of_mddev [2019-10-03 01:53:24,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_reconfig_mutex_of_mddev [2019-10-03 01:53:24,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_reconfig_mutex_of_mddev [2019-10-03 01:53:24,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_reconfig_mutex_of_mddev [2019-10-03 01:53:24,839 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-03 01:53:24,839 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-03 01:53:24,839 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-03 01:53:24,840 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 01:53:24,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 01:53:24,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-03 01:53:24,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-03 01:53:24,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 01:53:25,798 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-03 01:53:35,558 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 01:53:35,559 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-03 01:53:35,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 01:53:35 BoogieIcfgContainer [2019-10-03 01:53:35,562 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 01:53:35,563 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 01:53:35,563 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 01:53:35,567 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 01:53:35,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 01:53:21" (1/3) ... [2019-10-03 01:53:35,568 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7952e6a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 01:53:35, skipping insertion in model container [2019-10-03 01:53:35,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 01:53:24" (2/3) ... [2019-10-03 01:53:35,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7952e6a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 01:53:35, skipping insertion in model container [2019-10-03 01:53:35,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 01:53:35" (3/3) ... [2019-10-03 01:53:35,571 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-raid.ko-entry_point.cil.out.i [2019-10-03 01:53:35,582 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 01:53:35,594 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 01:53:35,612 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 01:53:35,642 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 01:53:35,642 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 01:53:35,642 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 01:53:35,642 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 01:53:35,642 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 01:53:35,642 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 01:53:35,643 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 01:53:35,643 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 01:53:35,705 INFO L276 IsEmpty]: Start isEmpty. Operand 1659 states. [2019-10-03 01:53:35,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2019-10-03 01:53:35,745 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 01:53:35,749 INFO L411 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:53:35,752 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 01:53:35,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 01:53:35,759 INFO L82 PathProgramCache]: Analyzing trace with hash -559995268, now seen corresponding path program 1 times [2019-10-03 01:53:35,761 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 01:53:35,845 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:53:35,845 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 01:53:35,845 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:53:35,845 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 01:53:36,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 01:53:36,893 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 441 trivial. 0 not checked. [2019-10-03 01:53:36,895 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 01:53:36,895 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 01:53:36,896 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 01:53:36,902 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 01:53:36,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 01:53:36,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 01:53:36,921 INFO L87 Difference]: Start difference. First operand 1659 states. Second operand 3 states. [2019-10-03 01:53:40,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 01:53:40,135 INFO L93 Difference]: Finished difference Result 2695 states and 3756 transitions. [2019-10-03 01:53:40,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 01:53:40,137 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 197 [2019-10-03 01:53:40,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 01:53:40,185 INFO L225 Difference]: With dead ends: 2695 [2019-10-03 01:53:40,186 INFO L226 Difference]: Without dead ends: 2676 [2019-10-03 01:53:40,187 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 01:53:40,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2676 states. [2019-10-03 01:53:40,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2676 to 2673. [2019-10-03 01:53:40,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2673 states. [2019-10-03 01:53:40,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2673 states to 2673 states and 3725 transitions. [2019-10-03 01:53:40,443 INFO L78 Accepts]: Start accepts. Automaton has 2673 states and 3725 transitions. Word has length 197 [2019-10-03 01:53:40,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 01:53:40,447 INFO L475 AbstractCegarLoop]: Abstraction has 2673 states and 3725 transitions. [2019-10-03 01:53:40,447 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 01:53:40,448 INFO L276 IsEmpty]: Start isEmpty. Operand 2673 states and 3725 transitions. [2019-10-03 01:53:40,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2019-10-03 01:53:40,459 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 01:53:40,459 INFO L411 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:53:40,460 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 01:53:40,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 01:53:40,460 INFO L82 PathProgramCache]: Analyzing trace with hash -179902797, now seen corresponding path program 1 times [2019-10-03 01:53:40,460 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 01:53:40,478 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:53:40,478 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 01:53:40,478 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:53:40,479 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 01:53:40,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 01:53:40,984 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 441 trivial. 0 not checked. [2019-10-03 01:53:40,984 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 01:53:40,984 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 01:53:40,985 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 01:53:41,001 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 01:53:41,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 01:53:41,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 01:53:41,002 INFO L87 Difference]: Start difference. First operand 2673 states and 3725 transitions. Second operand 3 states. [2019-10-03 01:53:41,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 01:53:41,063 INFO L93 Difference]: Finished difference Result 2672 states and 3723 transitions. [2019-10-03 01:53:41,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 01:53:41,063 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 202 [2019-10-03 01:53:41,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 01:53:41,093 INFO L225 Difference]: With dead ends: 2672 [2019-10-03 01:53:41,093 INFO L226 Difference]: Without dead ends: 2672 [2019-10-03 01:53:41,095 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 01:53:41,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2672 states. [2019-10-03 01:53:41,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2672 to 2672. [2019-10-03 01:53:41,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2672 states. [2019-10-03 01:53:41,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2672 states to 2672 states and 3723 transitions. [2019-10-03 01:53:41,215 INFO L78 Accepts]: Start accepts. Automaton has 2672 states and 3723 transitions. Word has length 202 [2019-10-03 01:53:41,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 01:53:41,216 INFO L475 AbstractCegarLoop]: Abstraction has 2672 states and 3723 transitions. [2019-10-03 01:53:41,216 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 01:53:41,216 INFO L276 IsEmpty]: Start isEmpty. Operand 2672 states and 3723 transitions. [2019-10-03 01:53:41,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2019-10-03 01:53:41,223 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 01:53:41,224 INFO L411 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:53:41,224 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 01:53:41,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 01:53:41,225 INFO L82 PathProgramCache]: Analyzing trace with hash -1282600013, now seen corresponding path program 1 times [2019-10-03 01:53:41,225 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 01:53:41,239 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:53:41,239 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 01:53:41,239 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:53:41,241 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 01:53:41,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 01:53:42,336 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 441 trivial. 0 not checked. [2019-10-03 01:53:42,337 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 01:53:42,337 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 01:53:42,337 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 01:53:42,339 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 01:53:42,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 01:53:42,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 01:53:42,341 INFO L87 Difference]: Start difference. First operand 2672 states and 3723 transitions. Second operand 3 states. [2019-10-03 01:53:42,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 01:53:42,383 INFO L93 Difference]: Finished difference Result 2671 states and 3721 transitions. [2019-10-03 01:53:42,383 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 01:53:42,384 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 203 [2019-10-03 01:53:42,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 01:53:42,399 INFO L225 Difference]: With dead ends: 2671 [2019-10-03 01:53:42,400 INFO L226 Difference]: Without dead ends: 2671 [2019-10-03 01:53:42,400 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 01:53:42,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2671 states. [2019-10-03 01:53:42,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2671 to 2671. [2019-10-03 01:53:42,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2671 states. [2019-10-03 01:53:42,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2671 states to 2671 states and 3721 transitions. [2019-10-03 01:53:42,500 INFO L78 Accepts]: Start accepts. Automaton has 2671 states and 3721 transitions. Word has length 203 [2019-10-03 01:53:42,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 01:53:42,504 INFO L475 AbstractCegarLoop]: Abstraction has 2671 states and 3721 transitions. [2019-10-03 01:53:42,504 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 01:53:42,504 INFO L276 IsEmpty]: Start isEmpty. Operand 2671 states and 3721 transitions. [2019-10-03 01:53:42,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2019-10-03 01:53:42,508 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 01:53:42,509 INFO L411 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:53:42,509 INFO L418 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 01:53:42,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 01:53:42,509 INFO L82 PathProgramCache]: Analyzing trace with hash -1106470474, now seen corresponding path program 1 times [2019-10-03 01:53:42,510 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 01:53:42,520 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:53:42,520 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 01:53:42,520 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:53:42,520 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 01:53:42,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 01:53:42,885 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 441 trivial. 0 not checked. [2019-10-03 01:53:42,886 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 01:53:42,886 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 01:53:42,886 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 01:53:42,887 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 01:53:42,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 01:53:42,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 01:53:42,888 INFO L87 Difference]: Start difference. First operand 2671 states and 3721 transitions. Second operand 3 states. [2019-10-03 01:53:42,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 01:53:42,944 INFO L93 Difference]: Finished difference Result 2670 states and 3719 transitions. [2019-10-03 01:53:42,945 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 01:53:42,945 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 204 [2019-10-03 01:53:42,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 01:53:42,967 INFO L225 Difference]: With dead ends: 2670 [2019-10-03 01:53:42,967 INFO L226 Difference]: Without dead ends: 2670 [2019-10-03 01:53:42,968 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 01:53:42,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2670 states. [2019-10-03 01:53:43,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2670 to 2670. [2019-10-03 01:53:43,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2670 states. [2019-10-03 01:53:43,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2670 states to 2670 states and 3719 transitions. [2019-10-03 01:53:43,086 INFO L78 Accepts]: Start accepts. Automaton has 2670 states and 3719 transitions. Word has length 204 [2019-10-03 01:53:43,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 01:53:43,087 INFO L475 AbstractCegarLoop]: Abstraction has 2670 states and 3719 transitions. [2019-10-03 01:53:43,087 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 01:53:43,087 INFO L276 IsEmpty]: Start isEmpty. Operand 2670 states and 3719 transitions. [2019-10-03 01:53:43,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2019-10-03 01:53:43,093 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 01:53:43,094 INFO L411 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:53:43,094 INFO L418 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 01:53:43,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 01:53:43,095 INFO L82 PathProgramCache]: Analyzing trace with hash 58582806, now seen corresponding path program 1 times [2019-10-03 01:53:43,095 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 01:53:43,109 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:53:43,110 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 01:53:43,110 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:53:43,110 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 01:53:43,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 01:53:43,499 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 441 trivial. 0 not checked. [2019-10-03 01:53:43,499 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 01:53:43,499 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 01:53:43,499 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 01:53:43,500 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 01:53:43,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 01:53:43,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 01:53:43,501 INFO L87 Difference]: Start difference. First operand 2670 states and 3719 transitions. Second operand 3 states. [2019-10-03 01:53:43,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 01:53:43,587 INFO L93 Difference]: Finished difference Result 5227 states and 7308 transitions. [2019-10-03 01:53:43,588 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 01:53:43,588 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 205 [2019-10-03 01:53:43,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 01:53:43,618 INFO L225 Difference]: With dead ends: 5227 [2019-10-03 01:53:43,619 INFO L226 Difference]: Without dead ends: 5214 [2019-10-03 01:53:43,619 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 01:53:43,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5214 states. [2019-10-03 01:53:43,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5214 to 5214. [2019-10-03 01:53:43,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5214 states. [2019-10-03 01:53:43,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5214 states to 5214 states and 7293 transitions. [2019-10-03 01:53:43,783 INFO L78 Accepts]: Start accepts. Automaton has 5214 states and 7293 transitions. Word has length 205 [2019-10-03 01:53:43,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 01:53:43,784 INFO L475 AbstractCegarLoop]: Abstraction has 5214 states and 7293 transitions. [2019-10-03 01:53:43,784 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 01:53:43,784 INFO L276 IsEmpty]: Start isEmpty. Operand 5214 states and 7293 transitions. [2019-10-03 01:53:43,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2019-10-03 01:53:43,805 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 01:53:43,805 INFO L411 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 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] [2019-10-03 01:53:43,805 INFO L418 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 01:53:43,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 01:53:43,806 INFO L82 PathProgramCache]: Analyzing trace with hash 1395264372, now seen corresponding path program 1 times [2019-10-03 01:53:43,806 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 01:53:43,817 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:53:43,817 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 01:53:43,817 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:53:43,817 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 01:53:43,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 01:53:44,372 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2019-10-03 01:53:44,372 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 01:53:44,372 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 01:53:44,372 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 01:53:44,373 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 01:53:44,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 01:53:44,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 01:53:44,374 INFO L87 Difference]: Start difference. First operand 5214 states and 7293 transitions. Second operand 3 states. [2019-10-03 01:53:45,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 01:53:45,112 INFO L93 Difference]: Finished difference Result 5447 states and 7601 transitions. [2019-10-03 01:53:45,112 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 01:53:45,112 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 378 [2019-10-03 01:53:45,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 01:53:45,146 INFO L225 Difference]: With dead ends: 5447 [2019-10-03 01:53:45,148 INFO L226 Difference]: Without dead ends: 5447 [2019-10-03 01:53:45,148 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 01:53:45,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5447 states. [2019-10-03 01:53:45,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5447 to 5431. [2019-10-03 01:53:45,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5431 states. [2019-10-03 01:53:45,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5431 states to 5431 states and 7586 transitions. [2019-10-03 01:53:45,336 INFO L78 Accepts]: Start accepts. Automaton has 5431 states and 7586 transitions. Word has length 378 [2019-10-03 01:53:45,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 01:53:45,336 INFO L475 AbstractCegarLoop]: Abstraction has 5431 states and 7586 transitions. [2019-10-03 01:53:45,336 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 01:53:45,336 INFO L276 IsEmpty]: Start isEmpty. Operand 5431 states and 7586 transitions. [2019-10-03 01:53:45,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2019-10-03 01:53:45,372 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 01:53:45,373 INFO L411 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2019-10-03 01:53:45,373 INFO L418 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 01:53:45,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 01:53:45,373 INFO L82 PathProgramCache]: Analyzing trace with hash 1114885254, now seen corresponding path program 1 times [2019-10-03 01:53:45,374 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 01:53:45,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:53:45,386 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 01:53:45,386 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:53:45,386 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 01:53:45,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 01:53:45,903 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2019-10-03 01:53:45,904 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 01:53:45,904 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 01:53:45,904 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 01:53:45,907 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 01:53:45,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 01:53:45,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 01:53:45,908 INFO L87 Difference]: Start difference. First operand 5431 states and 7586 transitions. Second operand 3 states. [2019-10-03 01:53:45,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 01:53:45,976 INFO L93 Difference]: Finished difference Result 5435 states and 7590 transitions. [2019-10-03 01:53:45,977 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 01:53:45,977 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 407 [2019-10-03 01:53:45,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 01:53:46,032 INFO L225 Difference]: With dead ends: 5435 [2019-10-03 01:53:46,033 INFO L226 Difference]: Without dead ends: 5435 [2019-10-03 01:53:46,033 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 01:53:46,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5435 states. [2019-10-03 01:53:46,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5435 to 5435. [2019-10-03 01:53:46,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5435 states. [2019-10-03 01:53:46,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5435 states to 5435 states and 7590 transitions. [2019-10-03 01:53:46,275 INFO L78 Accepts]: Start accepts. Automaton has 5435 states and 7590 transitions. Word has length 407 [2019-10-03 01:53:46,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 01:53:46,278 INFO L475 AbstractCegarLoop]: Abstraction has 5435 states and 7590 transitions. [2019-10-03 01:53:46,278 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 01:53:46,278 INFO L276 IsEmpty]: Start isEmpty. Operand 5435 states and 7590 transitions. [2019-10-03 01:53:46,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2019-10-03 01:53:46,311 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 01:53:46,311 INFO L411 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2019-10-03 01:53:46,313 INFO L418 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 01:53:46,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 01:53:46,314 INFO L82 PathProgramCache]: Analyzing trace with hash -654586360, now seen corresponding path program 1 times [2019-10-03 01:53:46,314 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 01:53:46,329 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:53:46,329 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 01:53:46,329 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:53:46,330 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 01:53:46,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 01:53:46,988 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2019-10-03 01:53:46,988 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 01:53:46,989 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 01:53:46,989 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 01:53:46,990 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 01:53:46,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 01:53:46,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 01:53:46,990 INFO L87 Difference]: Start difference. First operand 5435 states and 7590 transitions. Second operand 3 states. [2019-10-03 01:53:47,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 01:53:47,052 INFO L93 Difference]: Finished difference Result 5575 states and 7806 transitions. [2019-10-03 01:53:47,053 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 01:53:47,053 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 407 [2019-10-03 01:53:47,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 01:53:47,077 INFO L225 Difference]: With dead ends: 5575 [2019-10-03 01:53:47,077 INFO L226 Difference]: Without dead ends: 5575 [2019-10-03 01:53:47,077 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 01:53:47,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5575 states. [2019-10-03 01:53:47,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5575 to 5563. [2019-10-03 01:53:47,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5563 states. [2019-10-03 01:53:47,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5563 states to 5563 states and 7794 transitions. [2019-10-03 01:53:47,227 INFO L78 Accepts]: Start accepts. Automaton has 5563 states and 7794 transitions. Word has length 407 [2019-10-03 01:53:47,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 01:53:47,228 INFO L475 AbstractCegarLoop]: Abstraction has 5563 states and 7794 transitions. [2019-10-03 01:53:47,228 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 01:53:47,229 INFO L276 IsEmpty]: Start isEmpty. Operand 5563 states and 7794 transitions. [2019-10-03 01:53:47,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2019-10-03 01:53:47,259 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 01:53:47,259 INFO L411 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2019-10-03 01:53:47,260 INFO L418 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 01:53:47,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 01:53:47,260 INFO L82 PathProgramCache]: Analyzing trace with hash 805459998, now seen corresponding path program 1 times [2019-10-03 01:53:47,260 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 01:53:47,271 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:53:47,272 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 01:53:47,272 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:53:47,272 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 01:53:47,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 01:53:47,817 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2019-10-03 01:53:47,817 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 01:53:47,817 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-03 01:53:47,818 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 01:53:47,818 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-03 01:53:47,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-03 01:53:47,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-03 01:53:47,819 INFO L87 Difference]: Start difference. First operand 5563 states and 7794 transitions. Second operand 4 states. [2019-10-03 01:53:47,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 01:53:47,923 INFO L93 Difference]: Finished difference Result 5843 states and 8230 transitions. [2019-10-03 01:53:47,924 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-03 01:53:47,924 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 408 [2019-10-03 01:53:47,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 01:53:47,957 INFO L225 Difference]: With dead ends: 5843 [2019-10-03 01:53:47,957 INFO L226 Difference]: Without dead ends: 5843 [2019-10-03 01:53:47,958 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-03 01:53:47,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5843 states. [2019-10-03 01:53:48,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5843 to 5827. [2019-10-03 01:53:48,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5827 states. [2019-10-03 01:53:48,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5827 states to 5827 states and 8214 transitions. [2019-10-03 01:53:48,151 INFO L78 Accepts]: Start accepts. Automaton has 5827 states and 8214 transitions. Word has length 408 [2019-10-03 01:53:48,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 01:53:48,152 INFO L475 AbstractCegarLoop]: Abstraction has 5827 states and 8214 transitions. [2019-10-03 01:53:48,152 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-03 01:53:48,152 INFO L276 IsEmpty]: Start isEmpty. Operand 5827 states and 8214 transitions. [2019-10-03 01:53:48,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2019-10-03 01:53:48,179 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 01:53:48,181 INFO L411 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2019-10-03 01:53:48,181 INFO L418 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 01:53:48,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 01:53:48,182 INFO L82 PathProgramCache]: Analyzing trace with hash 571152193, now seen corresponding path program 1 times [2019-10-03 01:53:48,182 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 01:53:48,195 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:53:48,196 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 01:53:48,196 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:53:48,196 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 01:53:48,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 01:53:49,347 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 505 trivial. 0 not checked. [2019-10-03 01:53:49,347 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 01:53:49,348 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-10-03 01:53:49,348 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 01:53:49,349 INFO L454 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-10-03 01:53:49,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-10-03 01:53:49,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2019-10-03 01:53:49,352 INFO L87 Difference]: Start difference. First operand 5827 states and 8214 transitions. Second operand 19 states. [2019-10-03 01:53:58,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 01:53:58,105 INFO L93 Difference]: Finished difference Result 6153 states and 8706 transitions. [2019-10-03 01:53:58,107 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-10-03 01:53:58,108 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 409 [2019-10-03 01:53:58,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 01:53:58,156 INFO L225 Difference]: With dead ends: 6153 [2019-10-03 01:53:58,157 INFO L226 Difference]: Without dead ends: 6123 [2019-10-03 01:53:58,158 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=124, Invalid=1136, Unknown=0, NotChecked=0, Total=1260 [2019-10-03 01:53:58,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6123 states. [2019-10-03 01:53:58,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6123 to 5997. [2019-10-03 01:53:58,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5997 states. [2019-10-03 01:53:58,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5997 states to 5997 states and 8478 transitions. [2019-10-03 01:53:58,394 INFO L78 Accepts]: Start accepts. Automaton has 5997 states and 8478 transitions. Word has length 409 [2019-10-03 01:53:58,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 01:53:58,395 INFO L475 AbstractCegarLoop]: Abstraction has 5997 states and 8478 transitions. [2019-10-03 01:53:58,396 INFO L476 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-10-03 01:53:58,396 INFO L276 IsEmpty]: Start isEmpty. Operand 5997 states and 8478 transitions. [2019-10-03 01:53:58,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2019-10-03 01:53:58,422 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 01:53:58,423 INFO L411 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2019-10-03 01:53:58,423 INFO L418 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 01:53:58,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 01:53:58,424 INFO L82 PathProgramCache]: Analyzing trace with hash 1525092351, now seen corresponding path program 1 times [2019-10-03 01:53:58,424 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 01:53:58,434 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:53:58,434 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 01:53:58,434 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:53:58,434 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 01:53:58,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 01:53:59,393 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2019-10-03 01:53:59,395 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 01:53:59,395 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 01:53:59,395 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 01:53:59,396 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 01:53:59,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 01:53:59,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 01:53:59,397 INFO L87 Difference]: Start difference. First operand 5997 states and 8478 transitions. Second operand 5 states. [2019-10-03 01:53:59,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 01:53:59,529 INFO L93 Difference]: Finished difference Result 6037 states and 8528 transitions. [2019-10-03 01:53:59,529 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-03 01:53:59,529 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 409 [2019-10-03 01:53:59,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 01:53:59,556 INFO L225 Difference]: With dead ends: 6037 [2019-10-03 01:53:59,557 INFO L226 Difference]: Without dead ends: 6037 [2019-10-03 01:53:59,558 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 01:53:59,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6037 states. [2019-10-03 01:53:59,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6037 to 6013. [2019-10-03 01:53:59,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6013 states. [2019-10-03 01:53:59,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6013 states to 6013 states and 8498 transitions. [2019-10-03 01:53:59,751 INFO L78 Accepts]: Start accepts. Automaton has 6013 states and 8498 transitions. Word has length 409 [2019-10-03 01:53:59,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 01:53:59,752 INFO L475 AbstractCegarLoop]: Abstraction has 6013 states and 8498 transitions. [2019-10-03 01:53:59,752 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 01:53:59,752 INFO L276 IsEmpty]: Start isEmpty. Operand 6013 states and 8498 transitions. [2019-10-03 01:53:59,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 437 [2019-10-03 01:53:59,779 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 01:53:59,780 INFO L411 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2019-10-03 01:53:59,780 INFO L418 AbstractCegarLoop]: === Iteration 12 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 01:53:59,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 01:53:59,781 INFO L82 PathProgramCache]: Analyzing trace with hash 1684431821, now seen corresponding path program 1 times [2019-10-03 01:53:59,781 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 01:53:59,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:53:59,791 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 01:53:59,791 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:53:59,791 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 01:53:59,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 01:54:00,300 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2019-10-03 01:54:00,301 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 01:54:00,301 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 01:54:00,301 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 01:54:00,302 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 01:54:00,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 01:54:00,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 01:54:00,303 INFO L87 Difference]: Start difference. First operand 6013 states and 8498 transitions. Second operand 3 states. [2019-10-03 01:54:00,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 01:54:00,358 INFO L93 Difference]: Finished difference Result 6017 states and 8502 transitions. [2019-10-03 01:54:00,359 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 01:54:00,359 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 436 [2019-10-03 01:54:00,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 01:54:00,387 INFO L225 Difference]: With dead ends: 6017 [2019-10-03 01:54:00,388 INFO L226 Difference]: Without dead ends: 6017 [2019-10-03 01:54:00,388 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 01:54:00,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6017 states. [2019-10-03 01:54:00,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6017 to 6017. [2019-10-03 01:54:00,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6017 states. [2019-10-03 01:54:00,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6017 states to 6017 states and 8502 transitions. [2019-10-03 01:54:00,567 INFO L78 Accepts]: Start accepts. Automaton has 6017 states and 8502 transitions. Word has length 436 [2019-10-03 01:54:00,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 01:54:00,568 INFO L475 AbstractCegarLoop]: Abstraction has 6017 states and 8502 transitions. [2019-10-03 01:54:00,568 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 01:54:00,568 INFO L276 IsEmpty]: Start isEmpty. Operand 6017 states and 8502 transitions. [2019-10-03 01:54:00,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 437 [2019-10-03 01:54:00,596 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 01:54:00,597 INFO L411 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2019-10-03 01:54:00,597 INFO L418 AbstractCegarLoop]: === Iteration 13 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 01:54:00,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 01:54:00,597 INFO L82 PathProgramCache]: Analyzing trace with hash -37570865, now seen corresponding path program 1 times [2019-10-03 01:54:00,598 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 01:54:00,608 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:54:00,608 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 01:54:00,608 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:54:00,609 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 01:54:00,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 01:54:01,493 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2019-10-03 01:54:01,493 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 01:54:01,494 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 01:54:01,494 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 01:54:01,494 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 01:54:01,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 01:54:01,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 01:54:01,496 INFO L87 Difference]: Start difference. First operand 6017 states and 8502 transitions. Second operand 5 states. [2019-10-03 01:54:01,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 01:54:01,577 INFO L93 Difference]: Finished difference Result 6041 states and 8530 transitions. [2019-10-03 01:54:01,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-03 01:54:01,578 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 436 [2019-10-03 01:54:01,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 01:54:01,606 INFO L225 Difference]: With dead ends: 6041 [2019-10-03 01:54:01,606 INFO L226 Difference]: Without dead ends: 6041 [2019-10-03 01:54:01,608 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 01:54:01,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6041 states. [2019-10-03 01:54:01,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6041 to 6033. [2019-10-03 01:54:01,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6033 states. [2019-10-03 01:54:01,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6033 states to 6033 states and 8518 transitions. [2019-10-03 01:54:01,798 INFO L78 Accepts]: Start accepts. Automaton has 6033 states and 8518 transitions. Word has length 436 [2019-10-03 01:54:01,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 01:54:01,799 INFO L475 AbstractCegarLoop]: Abstraction has 6033 states and 8518 transitions. [2019-10-03 01:54:01,799 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 01:54:01,799 INFO L276 IsEmpty]: Start isEmpty. Operand 6033 states and 8518 transitions. [2019-10-03 01:54:01,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2019-10-03 01:54:01,832 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 01:54:01,832 INFO L411 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2019-10-03 01:54:01,832 INFO L418 AbstractCegarLoop]: === Iteration 14 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 01:54:01,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 01:54:01,833 INFO L82 PathProgramCache]: Analyzing trace with hash -1638978634, now seen corresponding path program 1 times [2019-10-03 01:54:01,833 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 01:54:01,843 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:54:01,843 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 01:54:01,843 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:54:01,843 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 01:54:02,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 01:54:02,678 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2019-10-03 01:54:02,679 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 01:54:02,679 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 01:54:02,679 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 01:54:02,680 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 01:54:02,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 01:54:02,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 01:54:02,681 INFO L87 Difference]: Start difference. First operand 6033 states and 8518 transitions. Second operand 5 states. [2019-10-03 01:54:02,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 01:54:02,748 INFO L93 Difference]: Finished difference Result 6057 states and 8542 transitions. [2019-10-03 01:54:02,749 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-03 01:54:02,749 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 437 [2019-10-03 01:54:02,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 01:54:02,773 INFO L225 Difference]: With dead ends: 6057 [2019-10-03 01:54:02,773 INFO L226 Difference]: Without dead ends: 6057 [2019-10-03 01:54:02,774 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 01:54:02,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6057 states. [2019-10-03 01:54:02,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6057 to 6053. [2019-10-03 01:54:02,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6053 states. [2019-10-03 01:54:02,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6053 states to 6053 states and 8538 transitions. [2019-10-03 01:54:02,935 INFO L78 Accepts]: Start accepts. Automaton has 6053 states and 8538 transitions. Word has length 437 [2019-10-03 01:54:02,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 01:54:02,936 INFO L475 AbstractCegarLoop]: Abstraction has 6053 states and 8538 transitions. [2019-10-03 01:54:02,936 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 01:54:02,936 INFO L276 IsEmpty]: Start isEmpty. Operand 6053 states and 8538 transitions. [2019-10-03 01:54:02,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 440 [2019-10-03 01:54:02,957 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 01:54:02,957 INFO L411 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2019-10-03 01:54:02,958 INFO L418 AbstractCegarLoop]: === Iteration 15 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 01:54:02,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 01:54:02,958 INFO L82 PathProgramCache]: Analyzing trace with hash -1560532107, now seen corresponding path program 1 times [2019-10-03 01:54:02,958 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 01:54:02,968 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:54:02,969 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 01:54:02,969 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 01:54:02,969 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 01:54:03,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 01:54:03,734 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2019-10-03 01:54:03,735 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 01:54:03,735 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 01:54:03,736 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 440 with the following transitions: [2019-10-03 01:54:03,742 INFO L207 CegarAbsIntRunner]: [8], [9], [10], [13], [31], [37], [38], [264], [265], [276], [301], [307], [308], [309], [312], [314], [335], [369], [370], [371], [372], [373], [374], [375], [446], [451], [456], [461], [466], [468], [469], [472], [474], [475], [552], [553], [568], [571], [585], [614], [615], [624], [625], [701], [702], [870], [871], [874], [877], [881], [884], [888], [924], [929], [934], [936], [937], [991], [993], [996], [1001], [1004], [1005], [1076], [1079], [1113], [1114], [1115], [1289], [1295], [1297], [1298], [1299], [1301], [1305], [1308], [1313], [1315], [1335], [1340], [1345], [1543], [1545], [1549], [1552], [1556], [1558], [1562], [1577], [1582], [1592], [1594], [1595], [1615], [1774], [1775], [1776], [1777], [1785], [1786], [1788], [1789], [1809], [1811], [1812], [1860], [1861], [1906], [1908], [1909], [1928], [1930], [1931], [2152], [2153], [2171], [2173], [2175], [2177], [2179], [2181], [2183], [2185], [2187], [2190], [2192], [2194], [2196], [2198], [2200], [2202], [2204], [2206], [2218], [2221], [2224], [2227], [2230], [2232], [2236], [2239], [2242], [2244], [2247], [2256], [2275], [2278], [2281], [2284], [2287], [2289], [2292], [2741], [2743], [2831], [2835], [2837], [2841], [2843], [2847], [2851], [2853], [2858], [2863], [2867], [2869], [2871], [2877], [2879], [2884], [2886], [2891], [2893], [2898], [2900], [2903], [2907], [2913], [2918], [2920], [2922], [2927], [3444], [3445], [3488], [3490], [3491], [3494], [3495], [3609], [3616], [3623], [3627], [3675], [3677], [3678], [3683], [3684], [3685], [3686], [3769], [3770], [3805], [3806], [3987], [3988], [4025], [4026], [4027], [4028], [4067], [4068], [4069], [4070], [4075], [4076], [4097], [4098], [4109], [4110], [4135], [4136], [4137], [4138], [4139], [4140], [4141], [4142], [4143], [4144], [4145], [4146], [4147], [4148], [4149], [4150], [4151], [4152], [4153], [4154], [4155], [4156], [4157], [4158], [4159], [4160], [4161], [4162], [4163], [4164], [4165], [4166], [4167], [4168], [4171], [4172], [4173], [4174], [4175], [4176], [4179], [4180], [4259], [4275], [4276], [4307], [4308], [4309], [4310], [4311], [4312], [4313], [4314], [4315], [4316], [4319], [4320], [4321], [4322], [4323], [4324], [4325], [4326], [4327], [4328], [4329], [4330], [4331], [4332], [4333], [4334], [4335], [4336], [4337], [4338], [4339], [4340], [4341], [4342], [4387], [4388], [4451], [4453], [4454], [4455], [4469], [4470] [2019-10-03 01:54:03,827 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-03 01:54:03,827 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 01:54:04,156 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-03 01:54:04,158 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 386 root evaluator evaluations with a maximum evaluation depth of 0. Performed 386 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 754 variables. [2019-10-03 01:54:04,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 01:54:04,163 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-03 01:54:04,341 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-10-03 01:54:04,342 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-03 01:54:04,366 INFO L420 sIntCurrentIteration]: We unified 438 AI predicates to 438 [2019-10-03 01:54:04,366 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-03 01:54:04,367 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-03 01:54:04,368 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 4 [2019-10-03 01:54:04,368 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 01:54:04,369 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 01:54:04,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 01:54:04,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 01:54:04,369 INFO L87 Difference]: Start difference. First operand 6053 states and 8538 transitions. Second operand 2 states. [2019-10-03 01:54:04,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 01:54:04,370 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-10-03 01:54:04,370 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 01:54:04,370 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 439 [2019-10-03 01:54:04,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 01:54:04,371 INFO L225 Difference]: With dead ends: 2 [2019-10-03 01:54:04,371 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 01:54:04,373 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 438 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 01:54:04,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 01:54:04,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 01:54:04,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 01:54:04,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 01:54:04,374 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 439 [2019-10-03 01:54:04,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 01:54:04,374 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 01:54:04,374 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 01:54:04,374 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 01:54:04,375 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 01:54:04,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 01:54:04 BoogieIcfgContainer [2019-10-03 01:54:04,381 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 01:54:04,384 INFO L168 Benchmark]: Toolchain (without parser) took 43262.73 ms. Allocated memory was 132.6 MB in the beginning and 1.4 GB in the end (delta: 1.3 GB). Free memory was 77.5 MB in the beginning and 990.3 MB in the end (delta: -912.8 MB). Peak memory consumption was 350.7 MB. Max. memory is 7.1 GB. [2019-10-03 01:54:04,387 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 132.6 MB. Free memory was 106.7 MB in the beginning and 106.5 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-10-03 01:54:04,389 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3213.41 ms. Allocated memory was 132.6 MB in the beginning and 266.9 MB in the end (delta: 134.2 MB). Free memory was 77.3 MB in the beginning and 139.0 MB in the end (delta: -61.7 MB). Peak memory consumption was 114.4 MB. Max. memory is 7.1 GB. [2019-10-03 01:54:04,394 INFO L168 Benchmark]: Boogie Preprocessor took 365.37 ms. Allocated memory is still 266.9 MB. Free memory was 139.0 MB in the beginning and 108.7 MB in the end (delta: 30.3 MB). Peak memory consumption was 30.3 MB. Max. memory is 7.1 GB. [2019-10-03 01:54:04,395 INFO L168 Benchmark]: RCFGBuilder took 10861.15 ms. Allocated memory was 266.9 MB in the beginning and 582.0 MB in the end (delta: 315.1 MB). Free memory was 106.9 MB in the beginning and 89.4 MB in the end (delta: 17.5 MB). Peak memory consumption was 365.1 MB. Max. memory is 7.1 GB. [2019-10-03 01:54:04,396 INFO L168 Benchmark]: TraceAbstraction took 28817.89 ms. Allocated memory was 582.0 MB in the beginning and 1.4 GB in the end (delta: 814.2 MB). Free memory was 89.4 MB in the beginning and 990.3 MB in the end (delta: -900.9 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-10-03 01:54:04,410 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 132.6 MB. Free memory was 106.7 MB in the beginning and 106.5 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3213.41 ms. Allocated memory was 132.6 MB in the beginning and 266.9 MB in the end (delta: 134.2 MB). Free memory was 77.3 MB in the beginning and 139.0 MB in the end (delta: -61.7 MB). Peak memory consumption was 114.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 365.37 ms. Allocated memory is still 266.9 MB. Free memory was 139.0 MB in the beginning and 108.7 MB in the end (delta: 30.3 MB). Peak memory consumption was 30.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10861.15 ms. Allocated memory was 266.9 MB in the beginning and 582.0 MB in the end (delta: 315.1 MB). Free memory was 106.9 MB in the beginning and 89.4 MB in the end (delta: 17.5 MB). Peak memory consumption was 365.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 28817.89 ms. Allocated memory was 582.0 MB in the beginning and 1.4 GB in the end (delta: 814.2 MB). Free memory was 89.4 MB in the beginning and 990.3 MB in the end (delta: -900.9 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 7525]: 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, 1873 locations, 1 error locations. SAFE Result, 28.7s OverallTime, 15 OverallIterations, 9 TraceHistogramMax, 14.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 27436 SDtfs, 11520 SDslu, 55783 SDs, 0 SdLazy, 1505 SolverSat, 165 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 11.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 523 GetRequests, 467 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6053occurred in iteration=14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.4s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 3.0319634703196345 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 2.4s AutomataMinimizationTime, 15 MinimizatonAttempts, 209 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.6s SsaConstructionTime, 3.2s SatisfiabilityAnalysisTime, 4.4s InterpolantComputationTime, 5177 NumberOfCodeBlocks, 5177 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 5162 ConstructedInterpolants, 0 QuantifiedInterpolants, 2217709 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 14 PerfectInterpolantSequences, 7597/7605 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...