/usr/bin/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -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-fb55353 [2019-11-07 00:18:03,413 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 00:18:03,416 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 00:18:03,437 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 00:18:03,437 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 00:18:03,440 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 00:18:03,442 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 00:18:03,455 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 00:18:03,457 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 00:18:03,458 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 00:18:03,459 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 00:18:03,460 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 00:18:03,460 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 00:18:03,461 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 00:18:03,462 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 00:18:03,463 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 00:18:03,464 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 00:18:03,465 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 00:18:03,467 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 00:18:03,469 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 00:18:03,470 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 00:18:03,471 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 00:18:03,472 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 00:18:03,473 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 00:18:03,475 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 00:18:03,476 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 00:18:03,476 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 00:18:03,477 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 00:18:03,477 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 00:18:03,479 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 00:18:03,480 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 00:18:03,480 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 00:18:03,482 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 00:18:03,483 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 00:18:03,484 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 00:18:03,484 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 00:18:03,488 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 00:18:03,488 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 00:18:03,489 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 00:18:03,490 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 00:18:03,490 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 00:18:03,495 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-07 00:18:03,516 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 00:18:03,516 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 00:18:03,518 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 00:18:03,518 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 00:18:03,519 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 00:18:03,519 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 00:18:03,519 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 00:18:03,519 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 00:18:03,519 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 00:18:03,520 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 00:18:03,521 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 00:18:03,521 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 00:18:03,521 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 00:18:03,522 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 00:18:03,522 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 00:18:03,522 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 00:18:03,522 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 00:18:03,523 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 00:18:03,523 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 00:18:03,523 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 00:18:03,524 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 00:18:03,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:18:03,524 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 00:18:03,524 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 00:18:03,524 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 00:18:03,525 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 00:18:03,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 00:18:03,525 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 00:18:03,525 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-11-07 00:18:03,833 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 00:18:03,855 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 00:18:03,858 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 00:18:03,860 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 00:18:03,860 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 00:18:03,861 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-raid.ko-entry_point.cil.out.i [2019-11-07 00:18:03,933 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1fa5ab4a/7a7a8479e28a4790a6299d49381e8d11/FLAGb693b28af [2019-11-07 00:18:04,815 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 00:18:04,816 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-raid.ko-entry_point.cil.out.i [2019-11-07 00:18:04,860 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1fa5ab4a/7a7a8479e28a4790a6299d49381e8d11/FLAGb693b28af [2019-11-07 00:18:05,309 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1fa5ab4a/7a7a8479e28a4790a6299d49381e8d11 [2019-11-07 00:18:05,321 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 00:18:05,322 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 00:18:05,323 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 00:18:05,323 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 00:18:05,327 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 00:18:05,328 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:18:05" (1/1) ... [2019-11-07 00:18:05,331 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47e4f08a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:18:05, skipping insertion in model container [2019-11-07 00:18:05,331 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:18:05" (1/1) ... [2019-11-07 00:18:05,340 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 00:18:05,479 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 00:18:07,237 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:18:07,262 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 00:18:07,742 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:18:08,063 INFO L192 MainTranslator]: Completed translation [2019-11-07 00:18:08,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:18:08 WrapperNode [2019-11-07 00:18:08,065 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 00:18:08,066 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 00:18:08,066 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 00:18:08,066 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 00:18:08,086 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:18:08" (1/1) ... [2019-11-07 00:18:08,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:18:08" (1/1) ... [2019-11-07 00:18:08,212 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:18:08" (1/1) ... [2019-11-07 00:18:08,213 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:18:08" (1/1) ... [2019-11-07 00:18:08,339 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:18:08" (1/1) ... [2019-11-07 00:18:08,366 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:18:08" (1/1) ... [2019-11-07 00:18:08,410 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:18:08" (1/1) ... [2019-11-07 00:18:08,444 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 00:18:08,445 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 00:18:08,445 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 00:18:08,445 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 00:18:08,448 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:18:08" (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 [2019-11-07 00:18:08,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 00:18:08,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 00:18:08,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2019-11-07 00:18:08,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~sector_t~0~X~~sector_t~0~X~$Pointer$~TO~int [2019-11-07 00:18:08,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-11-07 00:18:08,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2019-11-07 00:18:08,524 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2019-11-07 00:18:08,524 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2019-11-07 00:18:08,525 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2019-11-07 00:18:08,527 INFO L138 BoogieDeclarations]: Found implementation of procedure fls [2019-11-07 00:18:08,527 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight32 [2019-11-07 00:18:08,527 INFO L138 BoogieDeclarations]: Found implementation of procedure is_power_of_2 [2019-11-07 00:18:08,527 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoul [2019-11-07 00:18:08,529 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2019-11-07 00:18:08,529 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2019-11-07 00:18:08,530 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2019-11-07 00:18:08,535 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic64_read [2019-11-07 00:18:08,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-07 00:18:08,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-07 00:18:08,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-11-07 00:18:08,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-11-07 00:18:08,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-11-07 00:18:08,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-11-07 00:18:08,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-11-07 00:18:08,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-11-07 00:18:08,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-11-07 00:18:08,537 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2019-11-07 00:18:08,537 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-11-07 00:18:08,537 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-11-07 00:18:08,537 INFO L138 BoogieDeclarations]: Found implementation of procedure i_size_read [2019-11-07 00:18:08,538 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2019-11-07 00:18:08,538 INFO L138 BoogieDeclarations]: Found implementation of procedure bdev_get_queue [2019-11-07 00:18:08,538 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_logical_block_size [2019-11-07 00:18:08,538 INFO L138 BoogieDeclarations]: Found implementation of procedure bdev_logical_block_size [2019-11-07 00:18:08,538 INFO L138 BoogieDeclarations]: Found implementation of procedure mddev_lock_nointr [2019-11-07 00:18:08,539 INFO L138 BoogieDeclarations]: Found implementation of procedure to_sector [2019-11-07 00:18:08,539 INFO L138 BoogieDeclarations]: Found implementation of procedure raid10_md_layout_to_format [2019-11-07 00:18:08,539 INFO L138 BoogieDeclarations]: Found implementation of procedure raid10_md_layout_to_copies [2019-11-07 00:18:08,539 INFO L138 BoogieDeclarations]: Found implementation of procedure raid10_format_to_md_layout [2019-11-07 00:18:08,540 INFO L138 BoogieDeclarations]: Found implementation of procedure get_raid_type [2019-11-07 00:18:08,540 INFO L138 BoogieDeclarations]: Found implementation of procedure context_alloc [2019-11-07 00:18:08,540 INFO L138 BoogieDeclarations]: Found implementation of procedure context_free [2019-11-07 00:18:08,540 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_parms [2019-11-07 00:18:08,540 INFO L138 BoogieDeclarations]: Found implementation of procedure validate_region_size [2019-11-07 00:18:08,540 INFO L138 BoogieDeclarations]: Found implementation of procedure validate_raid_redundancy [2019-11-07 00:18:08,540 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_raid_params [2019-11-07 00:18:08,541 INFO L138 BoogieDeclarations]: Found implementation of procedure do_table_event [2019-11-07 00:18:08,541 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_is_congested [2019-11-07 00:18:08,541 INFO L138 BoogieDeclarations]: Found implementation of procedure read_disk_sb [2019-11-07 00:18:08,541 INFO L138 BoogieDeclarations]: Found implementation of procedure super_sync [2019-11-07 00:18:08,541 INFO L138 BoogieDeclarations]: Found implementation of procedure super_load [2019-11-07 00:18:08,541 INFO L138 BoogieDeclarations]: Found implementation of procedure super_init_validation [2019-11-07 00:18:08,542 INFO L138 BoogieDeclarations]: Found implementation of procedure super_validate [2019-11-07 00:18:08,542 INFO L138 BoogieDeclarations]: Found implementation of procedure analyse_superblocks [2019-11-07 00:18:08,542 INFO L138 BoogieDeclarations]: Found implementation of procedure configure_discard_support [2019-11-07 00:18:08,542 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_ctr [2019-11-07 00:18:08,542 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_dtr [2019-11-07 00:18:08,543 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_map [2019-11-07 00:18:08,543 INFO L138 BoogieDeclarations]: Found implementation of procedure decipher_sync_action [2019-11-07 00:18:08,543 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_status [2019-11-07 00:18:08,543 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_message [2019-11-07 00:18:08,543 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_iterate_devices [2019-11-07 00:18:08,543 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_io_hints [2019-11-07 00:18:08,544 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_presuspend [2019-11-07 00:18:08,544 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_postsuspend [2019-11-07 00:18:08,544 INFO L138 BoogieDeclarations]: Found implementation of procedure attempt_restore_of_faulty_devices [2019-11-07 00:18:08,544 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_resume [2019-11-07 00:18:08,544 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_merge [2019-11-07 00:18:08,544 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_raid_init [2019-11-07 00:18:08,545 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_raid_exit [2019-11-07 00:18:08,545 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2019-11-07 00:18:08,545 INFO L138 BoogieDeclarations]: Found implementation of procedure invoke_work_1 [2019-11-07 00:18:08,545 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2019-11-07 00:18:08,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_target_type_2 [2019-11-07 00:18:08,546 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_1 [2019-11-07 00:18:08,546 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2019-11-07 00:18:08,547 INFO L138 BoogieDeclarations]: Found implementation of procedure work_init_1 [2019-11-07 00:18:08,547 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 00:18:08,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2019-11-07 00:18:08,547 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-11-07 00:18:08,548 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-11-07 00:18:08,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_work_on_5 [2019-11-07 00:18:08,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_delayed_work_on_6 [2019-11-07 00:18:08,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_work_on_7 [2019-11-07 00:18:08,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_8 [2019-11-07 00:18:08,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_delayed_work_on_9 [2019-11-07 00:18:08,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_10 [2019-11-07 00:18:08,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2019-11-07 00:18:08,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_12 [2019-11-07 00:18:08,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_13 [2019-11-07 00:18:08,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_14 [2019-11-07 00:18:08,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_15 [2019-11-07 00:18:08,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_16 [2019-11-07 00:18:08,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_17 [2019-11-07 00:18:08,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_18 [2019-11-07 00:18:08,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_20 [2019-11-07 00:18:08,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-11-07 00:18:08,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2019-11-07 00:18:08,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-11-07 00:18:08,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-11-07 00:18:08,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-11-07 00:18:08,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-11-07 00:18:08,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_i_mutex_of_inode [2019-11-07 00:18:08,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_i_mutex_of_inode [2019-11-07 00:18:08,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_i_mutex_of_inode [2019-11-07 00:18:08,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_i_mutex_of_inode [2019-11-07 00:18:08,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2019-11-07 00:18:08,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_i_mutex_of_inode [2019-11-07 00:18:08,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_i_mutex_of_inode [2019-11-07 00:18:08,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_i_mutex_of_inode [2019-11-07 00:18:08,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_i_mutex_of_inode [2019-11-07 00:18:08,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_i_mutex_of_inode [2019-11-07 00:18:08,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_i_mutex_of_inode [2019-11-07 00:18:08,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2019-11-07 00:18:08,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2019-11-07 00:18:08,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2019-11-07 00:18:08,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2019-11-07 00:18:08,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-11-07 00:18:08,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2019-11-07 00:18:08,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2019-11-07 00:18:08,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_lock [2019-11-07 00:18:08,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_lock [2019-11-07 00:18:08,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_lock [2019-11-07 00:18:08,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_lock [2019-11-07 00:18:08,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-11-07 00:18:08,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2019-11-07 00:18:08,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2019-11-07 00:18:08,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2019-11-07 00:18:08,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-11-07 00:18:08,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2019-11-07 00:18:08,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2019-11-07 00:18:08,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_mutex_of_device [2019-11-07 00:18:08,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_mutex_of_device [2019-11-07 00:18:08,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2019-11-07 00:18:08,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_mutex_of_device [2019-11-07 00:18:08,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_reconfig_mutex_of_mddev [2019-11-07 00:18:08,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_reconfig_mutex_of_mddev [2019-11-07 00:18:08,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_reconfig_mutex_of_mddev [2019-11-07 00:18:08,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_reconfig_mutex_of_mddev [2019-11-07 00:18:08,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_reconfig_mutex_of_mddev [2019-11-07 00:18:08,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_reconfig_mutex_of_mddev [2019-11-07 00:18:08,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_reconfig_mutex_of_mddev [2019-11-07 00:18:08,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_reconfig_mutex_of_mddev [2019-11-07 00:18:08,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_reconfig_mutex_of_mddev [2019-11-07 00:18:08,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_reconfig_mutex_of_mddev [2019-11-07 00:18:08,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_reconfig_mutex_of_mddev [2019-11-07 00:18:08,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-11-07 00:18:08,561 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2019-11-07 00:18:08,561 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-11-07 00:18:08,561 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2019-11-07 00:18:08,561 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2019-11-07 00:18:08,562 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages_current [2019-11-07 00:18:08,562 INFO L138 BoogieDeclarations]: Found implementation of procedure bitmap_load [2019-11-07 00:18:08,562 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_limits_io_min [2019-11-07 00:18:08,562 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_limits_io_opt [2019-11-07 00:18:08,562 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_get_device [2019-11-07 00:18:08,562 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_put_device [2019-11-07 00:18:08,562 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_register_target [2019-11-07 00:18:08,563 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_set_target_max_io_len [2019-11-07 00:18:08,563 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_table_add_target_callbacks [2019-11-07 00:18:08,563 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_table_event [2019-11-07 00:18:08,563 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_table_get_mode [2019-11-07 00:18:08,563 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_unregister_target [2019-11-07 00:18:08,563 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2019-11-07 00:18:08,563 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoull [2019-11-07 00:18:08,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-11-07 00:18:08,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_preresume_2 [2019-11-07 00:18:08,614 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2019-11-07 00:18:08,614 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2019-11-07 00:18:08,614 INFO L138 BoogieDeclarations]: Found implementation of procedure md_error [2019-11-07 00:18:08,615 INFO L138 BoogieDeclarations]: Found implementation of procedure md_rdev_clear [2019-11-07 00:18:08,615 INFO L138 BoogieDeclarations]: Found implementation of procedure md_rdev_init [2019-11-07 00:18:08,615 INFO L138 BoogieDeclarations]: Found implementation of procedure md_reap_sync_thread [2019-11-07 00:18:08,615 INFO L138 BoogieDeclarations]: Found implementation of procedure md_run [2019-11-07 00:18:08,615 INFO L138 BoogieDeclarations]: Found implementation of procedure md_stop [2019-11-07 00:18:08,615 INFO L138 BoogieDeclarations]: Found implementation of procedure md_stop_writes [2019-11-07 00:18:08,615 INFO L138 BoogieDeclarations]: Found implementation of procedure md_wakeup_thread [2019-11-07 00:18:08,616 INFO L138 BoogieDeclarations]: Found implementation of procedure mddev_congested [2019-11-07 00:18:08,616 INFO L138 BoogieDeclarations]: Found implementation of procedure mddev_init [2019-11-07 00:18:08,616 INFO L138 BoogieDeclarations]: Found implementation of procedure mddev_resume [2019-11-07 00:18:08,616 INFO L138 BoogieDeclarations]: Found implementation of procedure mddev_suspend [2019-11-07 00:18:08,616 INFO L138 BoogieDeclarations]: Found implementation of procedure mddev_unlock [2019-11-07 00:18:08,616 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2019-11-07 00:18:08,616 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2019-11-07 00:18:08,617 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2019-11-07 00:18:08,617 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-11-07 00:18:08,617 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-11-07 00:18:08,617 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2019-11-07 00:18:08,617 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2019-11-07 00:18:08,618 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2019-11-07 00:18:08,618 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_set_cache_size [2019-11-07 00:18:08,618 INFO L138 BoogieDeclarations]: Found implementation of procedure scnprintf [2019-11-07 00:18:08,618 INFO L138 BoogieDeclarations]: Found implementation of procedure strcasecmp [2019-11-07 00:18:08,618 INFO L138 BoogieDeclarations]: Found implementation of procedure sync_page_io [2019-11-07 00:18:08,618 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-11-07 00:18:08,619 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-11-07 00:18:08,619 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-07 00:18:08,619 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-07 00:18:08,619 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 00:18:08,619 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-11-07 00:18:08,619 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2019-11-07 00:18:08,620 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2019-11-07 00:18:08,620 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2019-11-07 00:18:08,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 00:18:08,620 INFO L130 BoogieDeclarations]: Found specification of procedure fls [2019-11-07 00:18:08,620 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight32 [2019-11-07 00:18:08,620 INFO L130 BoogieDeclarations]: Found specification of procedure is_power_of_2 [2019-11-07 00:18:08,620 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-11-07 00:18:08,621 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoull [2019-11-07 00:18:08,621 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoul [2019-11-07 00:18:08,621 INFO L130 BoogieDeclarations]: Found specification of procedure scnprintf [2019-11-07 00:18:08,621 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-11-07 00:18:08,621 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-11-07 00:18:08,621 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-11-07 00:18:08,621 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2019-11-07 00:18:08,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 00:18:08,622 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2019-11-07 00:18:08,622 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2019-11-07 00:18:08,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 00:18:08,622 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2019-11-07 00:18:08,622 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2019-11-07 00:18:08,622 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2019-11-07 00:18:08,623 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-07 00:18:08,623 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2019-11-07 00:18:08,623 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp [2019-11-07 00:18:08,623 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2019-11-07 00:18:08,623 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-11-07 00:18:08,623 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-11-07 00:18:08,624 INFO L130 BoogieDeclarations]: Found specification of procedure atomic64_read [2019-11-07 00:18:08,624 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2019-11-07 00:18:08,624 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2019-11-07 00:18:08,624 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_13 [2019-11-07 00:18:08,624 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_20 [2019-11-07 00:18:08,624 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-11-07 00:18:08,624 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2019-11-07 00:18:08,625 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_14 [2019-11-07 00:18:08,625 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_15 [2019-11-07 00:18:08,625 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 00:18:08,625 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-07 00:18:08,625 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 00:18:08,625 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-11-07 00:18:08,626 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-07 00:18:08,626 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-11-07 00:18:08,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-07 00:18:08,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 00:18:08,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-07 00:18:08,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-07 00:18:08,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-11-07 00:18:08,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-11-07 00:18:08,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-07 00:18:08,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-11-07 00:18:08,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-11-07 00:18:08,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-11-07 00:18:08,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-11-07 00:18:08,627 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2019-11-07 00:18:08,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_17 [2019-11-07 00:18:08,627 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2019-11-07 00:18:08,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_10 [2019-11-07 00:18:08,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_12 [2019-11-07 00:18:08,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_16 [2019-11-07 00:18:08,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_18 [2019-11-07 00:18:08,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_i_mutex_of_inode [2019-11-07 00:18:08,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_i_mutex_of_inode [2019-11-07 00:18:08,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2019-11-07 00:18:08,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2019-11-07 00:18:08,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2019-11-07 00:18:08,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2019-11-07 00:18:08,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2019-11-07 00:18:08,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_reconfig_mutex_of_mddev [2019-11-07 00:18:08,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_reconfig_mutex_of_mddev [2019-11-07 00:18:08,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_reconfig_mutex_of_mddev [2019-11-07 00:18:08,630 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2019-11-07 00:18:08,630 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2019-11-07 00:18:08,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_work_on_5 [2019-11-07 00:18:08,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_work_on_7 [2019-11-07 00:18:08,630 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2019-11-07 00:18:08,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_delayed_work_on_6 [2019-11-07 00:18:08,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_delayed_work_on_9 [2019-11-07 00:18:08,631 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2019-11-07 00:18:08,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_8 [2019-11-07 00:18:08,631 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages_current [2019-11-07 00:18:08,631 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2019-11-07 00:18:08,631 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-07 00:18:08,631 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-11-07 00:18:08,632 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-11-07 00:18:08,632 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-11-07 00:18:08,632 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2019-11-07 00:18:08,632 INFO L130 BoogieDeclarations]: Found specification of procedure invoke_work_1 [2019-11-07 00:18:08,632 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2019-11-07 00:18:08,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_target_type_2 [2019-11-07 00:18:08,632 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_1 [2019-11-07 00:18:08,632 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2019-11-07 00:18:08,633 INFO L130 BoogieDeclarations]: Found specification of procedure work_init_1 [2019-11-07 00:18:08,633 INFO L130 BoogieDeclarations]: Found specification of procedure i_size_read [2019-11-07 00:18:08,633 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2019-11-07 00:18:08,633 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2019-11-07 00:18:08,633 INFO L130 BoogieDeclarations]: Found specification of procedure bdev_get_queue [2019-11-07 00:18:08,633 INFO L130 BoogieDeclarations]: Found specification of procedure blk_limits_io_min [2019-11-07 00:18:08,633 INFO L130 BoogieDeclarations]: Found specification of procedure blk_limits_io_opt [2019-11-07 00:18:08,634 INFO L130 BoogieDeclarations]: Found specification of procedure queue_logical_block_size [2019-11-07 00:18:08,634 INFO L130 BoogieDeclarations]: Found specification of procedure bdev_logical_block_size [2019-11-07 00:18:08,634 INFO L130 BoogieDeclarations]: Found specification of procedure mddev_lock_nointr [2019-11-07 00:18:08,634 INFO L130 BoogieDeclarations]: Found specification of procedure mddev_unlock [2019-11-07 00:18:08,634 INFO L130 BoogieDeclarations]: Found specification of procedure md_wakeup_thread [2019-11-07 00:18:08,634 INFO L130 BoogieDeclarations]: Found specification of procedure md_reap_sync_thread [2019-11-07 00:18:08,634 INFO L130 BoogieDeclarations]: Found specification of procedure md_error [2019-11-07 00:18:08,635 INFO L130 BoogieDeclarations]: Found specification of procedure mddev_congested [2019-11-07 00:18:08,635 INFO L130 BoogieDeclarations]: Found specification of procedure sync_page_io [2019-11-07 00:18:08,635 INFO L130 BoogieDeclarations]: Found specification of procedure mddev_init [2019-11-07 00:18:08,635 INFO L130 BoogieDeclarations]: Found specification of procedure md_run [2019-11-07 00:18:08,635 INFO L130 BoogieDeclarations]: Found specification of procedure md_stop [2019-11-07 00:18:08,635 INFO L130 BoogieDeclarations]: Found specification of procedure md_stop_writes [2019-11-07 00:18:08,635 INFO L130 BoogieDeclarations]: Found specification of procedure md_rdev_init [2019-11-07 00:18:08,636 INFO L130 BoogieDeclarations]: Found specification of procedure md_rdev_clear [2019-11-07 00:18:08,636 INFO L130 BoogieDeclarations]: Found specification of procedure mddev_suspend [2019-11-07 00:18:08,636 INFO L130 BoogieDeclarations]: Found specification of procedure mddev_resume [2019-11-07 00:18:08,636 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_set_cache_size [2019-11-07 00:18:08,636 INFO L130 BoogieDeclarations]: Found specification of procedure bitmap_load [2019-11-07 00:18:08,636 INFO L130 BoogieDeclarations]: Found specification of procedure dm_get_device [2019-11-07 00:18:08,636 INFO L130 BoogieDeclarations]: Found specification of procedure dm_put_device [2019-11-07 00:18:08,636 INFO L130 BoogieDeclarations]: Found specification of procedure dm_register_target [2019-11-07 00:18:08,637 INFO L130 BoogieDeclarations]: Found specification of procedure dm_unregister_target [2019-11-07 00:18:08,637 INFO L130 BoogieDeclarations]: Found specification of procedure dm_table_add_target_callbacks [2019-11-07 00:18:08,637 INFO L130 BoogieDeclarations]: Found specification of procedure dm_set_target_max_io_len [2019-11-07 00:18:08,637 INFO L130 BoogieDeclarations]: Found specification of procedure dm_table_get_mode [2019-11-07 00:18:08,637 INFO L130 BoogieDeclarations]: Found specification of procedure dm_table_event [2019-11-07 00:18:08,637 INFO L130 BoogieDeclarations]: Found specification of procedure to_sector [2019-11-07 00:18:08,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 00:18:08,637 INFO L130 BoogieDeclarations]: Found specification of procedure raid10_md_layout_to_format [2019-11-07 00:18:08,638 INFO L130 BoogieDeclarations]: Found specification of procedure raid10_md_layout_to_copies [2019-11-07 00:18:08,638 INFO L130 BoogieDeclarations]: Found specification of procedure raid10_format_to_md_layout [2019-11-07 00:18:08,638 INFO L130 BoogieDeclarations]: Found specification of procedure get_raid_type [2019-11-07 00:18:08,638 INFO L130 BoogieDeclarations]: Found specification of procedure context_alloc [2019-11-07 00:18:08,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 00:18:08,638 INFO L130 BoogieDeclarations]: Found specification of procedure context_free [2019-11-07 00:18:08,638 INFO L130 BoogieDeclarations]: Found specification of procedure dev_parms [2019-11-07 00:18:08,638 INFO L130 BoogieDeclarations]: Found specification of procedure validate_region_size [2019-11-07 00:18:08,639 INFO L130 BoogieDeclarations]: Found specification of procedure validate_raid_redundancy [2019-11-07 00:18:08,639 INFO L130 BoogieDeclarations]: Found specification of procedure parse_raid_params [2019-11-07 00:18:08,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 00:18:08,639 INFO L130 BoogieDeclarations]: Found specification of procedure do_table_event [2019-11-07 00:18:08,639 INFO L130 BoogieDeclarations]: Found specification of procedure raid_is_congested [2019-11-07 00:18:08,639 INFO L130 BoogieDeclarations]: Found specification of procedure read_disk_sb [2019-11-07 00:18:08,639 INFO L130 BoogieDeclarations]: Found specification of procedure super_sync [2019-11-07 00:18:08,639 INFO L130 BoogieDeclarations]: Found specification of procedure super_load [2019-11-07 00:18:08,640 INFO L130 BoogieDeclarations]: Found specification of procedure super_init_validation [2019-11-07 00:18:08,640 INFO L130 BoogieDeclarations]: Found specification of procedure super_validate [2019-11-07 00:18:08,640 INFO L130 BoogieDeclarations]: Found specification of procedure analyse_superblocks [2019-11-07 00:18:08,640 INFO L130 BoogieDeclarations]: Found specification of procedure configure_discard_support [2019-11-07 00:18:08,640 INFO L130 BoogieDeclarations]: Found specification of procedure raid_ctr [2019-11-07 00:18:08,640 INFO L130 BoogieDeclarations]: Found specification of procedure raid_dtr [2019-11-07 00:18:08,640 INFO L130 BoogieDeclarations]: Found specification of procedure raid_map [2019-11-07 00:18:08,640 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2019-11-07 00:18:08,641 INFO L130 BoogieDeclarations]: Found specification of procedure decipher_sync_action [2019-11-07 00:18:08,641 INFO L130 BoogieDeclarations]: Found specification of procedure raid_status [2019-11-07 00:18:08,641 INFO L130 BoogieDeclarations]: Found specification of procedure raid_message [2019-11-07 00:18:08,641 INFO L130 BoogieDeclarations]: Found specification of procedure raid_iterate_devices [2019-11-07 00:18:08,641 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~sector_t~0~X~~sector_t~0~X~$Pointer$~TO~int [2019-11-07 00:18:08,641 INFO L130 BoogieDeclarations]: Found specification of procedure raid_io_hints [2019-11-07 00:18:08,641 INFO L130 BoogieDeclarations]: Found specification of procedure raid_presuspend [2019-11-07 00:18:08,642 INFO L130 BoogieDeclarations]: Found specification of procedure raid_postsuspend [2019-11-07 00:18:08,642 INFO L130 BoogieDeclarations]: Found specification of procedure attempt_restore_of_faulty_devices [2019-11-07 00:18:08,642 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-11-07 00:18:08,642 INFO L130 BoogieDeclarations]: Found specification of procedure raid_resume [2019-11-07 00:18:08,642 INFO L130 BoogieDeclarations]: Found specification of procedure raid_merge [2019-11-07 00:18:08,642 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2019-11-07 00:18:08,642 INFO L130 BoogieDeclarations]: Found specification of procedure dm_raid_init [2019-11-07 00:18:08,643 INFO L130 BoogieDeclarations]: Found specification of procedure dm_raid_exit [2019-11-07 00:18:08,643 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_preresume_2 [2019-11-07 00:18:08,643 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-11-07 00:18:08,643 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-11-07 00:18:08,643 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 00:18:08,643 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-11-07 00:18:08,643 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2019-11-07 00:18:08,643 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-11-07 00:18:08,644 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_i_mutex_of_inode [2019-11-07 00:18:08,644 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_i_mutex_of_inode [2019-11-07 00:18:08,644 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_i_mutex_of_inode [2019-11-07 00:18:08,644 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2019-11-07 00:18:08,644 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_i_mutex_of_inode [2019-11-07 00:18:08,644 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_i_mutex_of_inode [2019-11-07 00:18:08,644 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_i_mutex_of_inode [2019-11-07 00:18:08,645 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_i_mutex_of_inode [2019-11-07 00:18:08,645 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_i_mutex_of_inode [2019-11-07 00:18:08,645 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2019-11-07 00:18:08,645 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2019-11-07 00:18:08,645 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2019-11-07 00:18:08,645 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-11-07 00:18:08,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2019-11-07 00:18:08,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_lock [2019-11-07 00:18:08,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_lock [2019-11-07 00:18:08,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_lock [2019-11-07 00:18:08,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_lock [2019-11-07 00:18:08,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-11-07 00:18:08,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2019-11-07 00:18:08,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-11-07 00:18:08,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2019-11-07 00:18:08,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_mutex_of_device [2019-11-07 00:18:08,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_mutex_of_device [2019-11-07 00:18:08,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2019-11-07 00:18:08,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_mutex_of_device [2019-11-07 00:18:08,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_reconfig_mutex_of_mddev [2019-11-07 00:18:08,648 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_reconfig_mutex_of_mddev [2019-11-07 00:18:08,648 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_reconfig_mutex_of_mddev [2019-11-07 00:18:08,648 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_reconfig_mutex_of_mddev [2019-11-07 00:18:08,648 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_reconfig_mutex_of_mddev [2019-11-07 00:18:08,648 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_reconfig_mutex_of_mddev [2019-11-07 00:18:08,648 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_reconfig_mutex_of_mddev [2019-11-07 00:18:08,648 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_reconfig_mutex_of_mddev [2019-11-07 00:18:08,649 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-11-07 00:18:08,649 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-11-07 00:18:08,649 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-11-07 00:18:08,649 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 00:18:08,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 00:18:08,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-07 00:18:08,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 00:18:08,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 00:18:09,929 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-11-07 00:18:19,211 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 00:18:19,212 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-11-07 00:18:19,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:18:19 BoogieIcfgContainer [2019-11-07 00:18:19,214 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 00:18:19,215 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 00:18:19,215 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 00:18:19,218 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 00:18:19,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:18:05" (1/3) ... [2019-11-07 00:18:19,219 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64e31613 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:18:19, skipping insertion in model container [2019-11-07 00:18:19,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:18:08" (2/3) ... [2019-11-07 00:18:19,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64e31613 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:18:19, skipping insertion in model container [2019-11-07 00:18:19,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:18:19" (3/3) ... [2019-11-07 00:18:19,222 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-raid.ko-entry_point.cil.out.i [2019-11-07 00:18:19,231 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 00:18:19,242 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 00:18:19,253 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 00:18:19,286 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 00:18:19,287 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 00:18:19,287 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 00:18:19,287 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 00:18:19,287 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 00:18:19,287 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 00:18:19,287 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 00:18:19,287 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 00:18:19,332 INFO L276 IsEmpty]: Start isEmpty. Operand 1658 states. [2019-11-07 00:18:19,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2019-11-07 00:18:19,348 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:18:19,350 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-07 00:18:19,352 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:18:19,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:18:19,358 INFO L82 PathProgramCache]: Analyzing trace with hash 1913972526, now seen corresponding path program 1 times [2019-11-07 00:18:19,368 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:18:19,368 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377214200] [2019-11-07 00:18:19,369 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:18:19,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:18:20,434 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 413 trivial. 0 not checked. [2019-11-07 00:18:20,435 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377214200] [2019-11-07 00:18:20,435 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:18:20,436 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:18:20,437 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285320800] [2019-11-07 00:18:20,443 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:18:20,444 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:18:20,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:18:20,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:18:20,461 INFO L87 Difference]: Start difference. First operand 1658 states. Second operand 3 states. [2019-11-07 00:18:23,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:18:23,770 INFO L93 Difference]: Finished difference Result 4043 states and 5668 transitions. [2019-11-07 00:18:23,770 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:18:23,772 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 189 [2019-11-07 00:18:23,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:18:23,827 INFO L225 Difference]: With dead ends: 4043 [2019-11-07 00:18:23,827 INFO L226 Difference]: Without dead ends: 2675 [2019-11-07 00:18:23,843 INFO L630 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 [2019-11-07 00:18:23,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2675 states. [2019-11-07 00:18:24,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2675 to 2672. [2019-11-07 00:18:24,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2672 states. [2019-11-07 00:18:24,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2672 states to 2672 states and 3723 transitions. [2019-11-07 00:18:24,138 INFO L78 Accepts]: Start accepts. Automaton has 2672 states and 3723 transitions. Word has length 189 [2019-11-07 00:18:24,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:18:24,144 INFO L462 AbstractCegarLoop]: Abstraction has 2672 states and 3723 transitions. [2019-11-07 00:18:24,144 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:18:24,144 INFO L276 IsEmpty]: Start isEmpty. Operand 2672 states and 3723 transitions. [2019-11-07 00:18:24,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2019-11-07 00:18:24,164 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:18:24,167 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-07 00:18:24,167 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:18:24,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:18:24,168 INFO L82 PathProgramCache]: Analyzing trace with hash 349202107, now seen corresponding path program 1 times [2019-11-07 00:18:24,168 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:18:24,168 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298898817] [2019-11-07 00:18:24,169 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:18:24,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:18:24,729 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 413 trivial. 0 not checked. [2019-11-07 00:18:24,730 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298898817] [2019-11-07 00:18:24,730 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:18:24,730 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:18:24,730 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273764616] [2019-11-07 00:18:24,732 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:18:24,733 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:18:24,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:18:24,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:18:24,734 INFO L87 Difference]: Start difference. First operand 2672 states and 3723 transitions. Second operand 3 states. [2019-11-07 00:18:24,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:18:24,816 INFO L93 Difference]: Finished difference Result 2674 states and 3724 transitions. [2019-11-07 00:18:24,817 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:18:24,817 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 194 [2019-11-07 00:18:24,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:18:24,843 INFO L225 Difference]: With dead ends: 2674 [2019-11-07 00:18:24,843 INFO L226 Difference]: Without dead ends: 2671 [2019-11-07 00:18:24,848 INFO L630 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 [2019-11-07 00:18:24,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2671 states. [2019-11-07 00:18:24,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2671 to 2671. [2019-11-07 00:18:24,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2671 states. [2019-11-07 00:18:24,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2671 states to 2671 states and 3721 transitions. [2019-11-07 00:18:24,988 INFO L78 Accepts]: Start accepts. Automaton has 2671 states and 3721 transitions. Word has length 194 [2019-11-07 00:18:24,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:18:24,990 INFO L462 AbstractCegarLoop]: Abstraction has 2671 states and 3721 transitions. [2019-11-07 00:18:24,990 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:18:24,990 INFO L276 IsEmpty]: Start isEmpty. Operand 2671 states and 3721 transitions. [2019-11-07 00:18:24,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2019-11-07 00:18:24,999 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:18:24,999 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-07 00:18:25,000 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:18:25,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:18:25,000 INFO L82 PathProgramCache]: Analyzing trace with hash -2060217179, now seen corresponding path program 1 times [2019-11-07 00:18:25,001 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:18:25,001 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757034344] [2019-11-07 00:18:25,001 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:18:25,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:18:25,580 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 413 trivial. 0 not checked. [2019-11-07 00:18:25,583 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757034344] [2019-11-07 00:18:25,583 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:18:25,584 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:18:25,584 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917255006] [2019-11-07 00:18:25,585 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:18:25,585 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:18:25,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:18:25,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:18:25,716 INFO L87 Difference]: Start difference. First operand 2671 states and 3721 transitions. Second operand 3 states. [2019-11-07 00:18:25,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:18:25,802 INFO L93 Difference]: Finished difference Result 2673 states and 3722 transitions. [2019-11-07 00:18:25,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:18:25,802 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 195 [2019-11-07 00:18:25,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:18:25,821 INFO L225 Difference]: With dead ends: 2673 [2019-11-07 00:18:25,821 INFO L226 Difference]: Without dead ends: 2670 [2019-11-07 00:18:25,824 INFO L630 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 [2019-11-07 00:18:25,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2670 states. [2019-11-07 00:18:25,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2670 to 2670. [2019-11-07 00:18:25,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2670 states. [2019-11-07 00:18:25,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2670 states to 2670 states and 3719 transitions. [2019-11-07 00:18:25,953 INFO L78 Accepts]: Start accepts. Automaton has 2670 states and 3719 transitions. Word has length 195 [2019-11-07 00:18:25,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:18:25,956 INFO L462 AbstractCegarLoop]: Abstraction has 2670 states and 3719 transitions. [2019-11-07 00:18:25,956 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:18:25,956 INFO L276 IsEmpty]: Start isEmpty. Operand 2670 states and 3719 transitions. [2019-11-07 00:18:25,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2019-11-07 00:18:25,964 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:18:25,964 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-07 00:18:25,964 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:18:25,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:18:25,965 INFO L82 PathProgramCache]: Analyzing trace with hash 557201150, now seen corresponding path program 1 times [2019-11-07 00:18:25,965 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:18:25,965 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999915180] [2019-11-07 00:18:25,965 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:18:26,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:18:26,379 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 413 trivial. 0 not checked. [2019-11-07 00:18:26,380 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999915180] [2019-11-07 00:18:26,381 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:18:26,382 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:18:26,382 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111678855] [2019-11-07 00:18:26,383 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:18:26,384 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:18:26,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:18:26,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:18:26,384 INFO L87 Difference]: Start difference. First operand 2670 states and 3719 transitions. Second operand 3 states. [2019-11-07 00:18:26,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:18:26,487 INFO L93 Difference]: Finished difference Result 2672 states and 3720 transitions. [2019-11-07 00:18:26,487 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:18:26,487 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 196 [2019-11-07 00:18:26,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:18:26,507 INFO L225 Difference]: With dead ends: 2672 [2019-11-07 00:18:26,507 INFO L226 Difference]: Without dead ends: 2669 [2019-11-07 00:18:26,513 INFO L630 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 [2019-11-07 00:18:26,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2669 states. [2019-11-07 00:18:26,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2669 to 2669. [2019-11-07 00:18:26,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2669 states. [2019-11-07 00:18:26,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2669 states to 2669 states and 3717 transitions. [2019-11-07 00:18:26,644 INFO L78 Accepts]: Start accepts. Automaton has 2669 states and 3717 transitions. Word has length 196 [2019-11-07 00:18:26,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:18:26,645 INFO L462 AbstractCegarLoop]: Abstraction has 2669 states and 3717 transitions. [2019-11-07 00:18:26,645 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:18:26,645 INFO L276 IsEmpty]: Start isEmpty. Operand 2669 states and 3717 transitions. [2019-11-07 00:18:26,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2019-11-07 00:18:26,650 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:18:26,650 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-07 00:18:26,650 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:18:26,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:18:26,651 INFO L82 PathProgramCache]: Analyzing trace with hash 92795592, now seen corresponding path program 1 times [2019-11-07 00:18:26,651 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:18:26,651 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273331980] [2019-11-07 00:18:26,651 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:18:26,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:18:27,230 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 413 trivial. 0 not checked. [2019-11-07 00:18:27,232 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273331980] [2019-11-07 00:18:27,233 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:18:27,233 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:18:27,233 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901596646] [2019-11-07 00:18:27,234 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:18:27,234 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:18:27,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:18:27,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:18:27,235 INFO L87 Difference]: Start difference. First operand 2669 states and 3717 transitions. Second operand 3 states. [2019-11-07 00:18:27,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:18:27,487 INFO L93 Difference]: Finished difference Result 5229 states and 7310 transitions. [2019-11-07 00:18:27,488 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:18:27,488 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 197 [2019-11-07 00:18:27,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:18:27,526 INFO L225 Difference]: With dead ends: 5229 [2019-11-07 00:18:27,526 INFO L226 Difference]: Without dead ends: 5212 [2019-11-07 00:18:27,531 INFO L630 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 [2019-11-07 00:18:27,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5212 states. [2019-11-07 00:18:27,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5212 to 5212. [2019-11-07 00:18:27,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5212 states. [2019-11-07 00:18:27,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5212 states to 5212 states and 7289 transitions. [2019-11-07 00:18:27,872 INFO L78 Accepts]: Start accepts. Automaton has 5212 states and 7289 transitions. Word has length 197 [2019-11-07 00:18:27,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:18:27,872 INFO L462 AbstractCegarLoop]: Abstraction has 5212 states and 7289 transitions. [2019-11-07 00:18:27,872 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:18:27,873 INFO L276 IsEmpty]: Start isEmpty. Operand 5212 states and 7289 transitions. [2019-11-07 00:18:27,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2019-11-07 00:18:27,896 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:18:27,897 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-07 00:18:27,897 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:18:27,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:18:27,897 INFO L82 PathProgramCache]: Analyzing trace with hash -21004350, now seen corresponding path program 1 times [2019-11-07 00:18:27,898 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:18:27,898 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410816707] [2019-11-07 00:18:27,898 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:18:28,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:18:28,321 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked. [2019-11-07 00:18:28,321 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410816707] [2019-11-07 00:18:28,322 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:18:28,322 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:18:28,322 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729956243] [2019-11-07 00:18:28,323 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:18:28,323 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:18:28,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:18:28,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:18:28,324 INFO L87 Difference]: Start difference. First operand 5212 states and 7289 transitions. Second operand 3 states. [2019-11-07 00:18:29,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:18:29,195 INFO L93 Difference]: Finished difference Result 10607 states and 14824 transitions. [2019-11-07 00:18:29,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:18:29,196 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 370 [2019-11-07 00:18:29,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:18:29,241 INFO L225 Difference]: With dead ends: 10607 [2019-11-07 00:18:29,242 INFO L226 Difference]: Without dead ends: 5444 [2019-11-07 00:18:29,278 INFO L630 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 [2019-11-07 00:18:29,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5444 states. [2019-11-07 00:18:29,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5444 to 5428. [2019-11-07 00:18:29,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5428 states. [2019-11-07 00:18:29,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5428 states to 5428 states and 7580 transitions. [2019-11-07 00:18:29,769 INFO L78 Accepts]: Start accepts. Automaton has 5428 states and 7580 transitions. Word has length 370 [2019-11-07 00:18:29,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:18:29,770 INFO L462 AbstractCegarLoop]: Abstraction has 5428 states and 7580 transitions. [2019-11-07 00:18:29,770 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:18:29,770 INFO L276 IsEmpty]: Start isEmpty. Operand 5428 states and 7580 transitions. [2019-11-07 00:18:29,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2019-11-07 00:18:29,804 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:18:29,805 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-07 00:18:29,805 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:18:29,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:18:29,806 INFO L82 PathProgramCache]: Analyzing trace with hash 1292983767, now seen corresponding path program 1 times [2019-11-07 00:18:29,806 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:18:29,806 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750321480] [2019-11-07 00:18:29,806 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:18:29,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:18:30,326 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 504 trivial. 0 not checked. [2019-11-07 00:18:30,327 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750321480] [2019-11-07 00:18:30,327 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:18:30,327 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:18:30,328 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310869679] [2019-11-07 00:18:30,329 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:18:30,329 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:18:30,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:18:30,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:18:30,330 INFO L87 Difference]: Start difference. First operand 5428 states and 7580 transitions. Second operand 3 states. [2019-11-07 00:18:30,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:18:30,581 INFO L93 Difference]: Finished difference Result 10799 states and 15099 transitions. [2019-11-07 00:18:30,582 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:18:30,582 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 398 [2019-11-07 00:18:30,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:18:30,626 INFO L225 Difference]: With dead ends: 10799 [2019-11-07 00:18:30,626 INFO L226 Difference]: Without dead ends: 5432 [2019-11-07 00:18:30,648 INFO L630 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 [2019-11-07 00:18:30,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5432 states. [2019-11-07 00:18:30,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5432 to 5432. [2019-11-07 00:18:30,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5432 states. [2019-11-07 00:18:30,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5432 states to 5432 states and 7584 transitions. [2019-11-07 00:18:30,906 INFO L78 Accepts]: Start accepts. Automaton has 5432 states and 7584 transitions. Word has length 398 [2019-11-07 00:18:30,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:18:30,909 INFO L462 AbstractCegarLoop]: Abstraction has 5432 states and 7584 transitions. [2019-11-07 00:18:30,909 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:18:30,909 INFO L276 IsEmpty]: Start isEmpty. Operand 5432 states and 7584 transitions. [2019-11-07 00:18:30,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2019-11-07 00:18:30,943 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:18:30,944 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-07 00:18:30,944 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:18:30,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:18:30,945 INFO L82 PathProgramCache]: Analyzing trace with hash -476487847, now seen corresponding path program 1 times [2019-11-07 00:18:30,945 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:18:30,945 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879959116] [2019-11-07 00:18:30,946 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:18:31,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:18:31,619 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 504 trivial. 0 not checked. [2019-11-07 00:18:31,620 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879959116] [2019-11-07 00:18:31,620 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:18:31,620 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:18:31,621 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146740784] [2019-11-07 00:18:31,622 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:18:31,622 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:18:31,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:18:31,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:18:31,622 INFO L87 Difference]: Start difference. First operand 5432 states and 7584 transitions. Second operand 3 states. [2019-11-07 00:18:31,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:18:31,841 INFO L93 Difference]: Finished difference Result 10943 states and 15323 transitions. [2019-11-07 00:18:31,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:18:31,841 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 398 [2019-11-07 00:18:31,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:18:31,880 INFO L225 Difference]: With dead ends: 10943 [2019-11-07 00:18:31,880 INFO L226 Difference]: Without dead ends: 5572 [2019-11-07 00:18:31,911 INFO L630 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 [2019-11-07 00:18:31,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5572 states. [2019-11-07 00:18:32,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5572 to 5560. [2019-11-07 00:18:32,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5560 states. [2019-11-07 00:18:32,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5560 states to 5560 states and 7788 transitions. [2019-11-07 00:18:32,279 INFO L78 Accepts]: Start accepts. Automaton has 5560 states and 7788 transitions. Word has length 398 [2019-11-07 00:18:32,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:18:32,280 INFO L462 AbstractCegarLoop]: Abstraction has 5560 states and 7788 transitions. [2019-11-07 00:18:32,280 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:18:32,280 INFO L276 IsEmpty]: Start isEmpty. Operand 5560 states and 7788 transitions. [2019-11-07 00:18:32,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2019-11-07 00:18:32,314 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:18:32,314 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-07 00:18:32,315 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:18:32,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:18:32,315 INFO L82 PathProgramCache]: Analyzing trace with hash 1438638363, now seen corresponding path program 1 times [2019-11-07 00:18:32,315 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:18:32,315 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319957084] [2019-11-07 00:18:32,316 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:18:32,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:18:32,927 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 504 trivial. 0 not checked. [2019-11-07 00:18:32,928 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319957084] [2019-11-07 00:18:32,928 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:18:32,928 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-07 00:18:32,928 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75791234] [2019-11-07 00:18:32,929 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-07 00:18:32,929 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:18:32,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-07 00:18:32,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-07 00:18:32,930 INFO L87 Difference]: Start difference. First operand 5560 states and 7788 transitions. Second operand 4 states. [2019-11-07 00:18:33,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:18:33,198 INFO L93 Difference]: Finished difference Result 11339 states and 15959 transitions. [2019-11-07 00:18:33,198 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-07 00:18:33,199 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 399 [2019-11-07 00:18:33,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:18:33,227 INFO L225 Difference]: With dead ends: 11339 [2019-11-07 00:18:33,228 INFO L226 Difference]: Without dead ends: 5840 [2019-11-07 00:18:33,251 INFO L630 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 [2019-11-07 00:18:33,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5840 states. [2019-11-07 00:18:33,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5840 to 5824. [2019-11-07 00:18:33,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5824 states. [2019-11-07 00:18:33,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5824 states to 5824 states and 8208 transitions. [2019-11-07 00:18:33,550 INFO L78 Accepts]: Start accepts. Automaton has 5824 states and 8208 transitions. Word has length 399 [2019-11-07 00:18:33,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:18:33,551 INFO L462 AbstractCegarLoop]: Abstraction has 5824 states and 8208 transitions. [2019-11-07 00:18:33,551 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-07 00:18:33,551 INFO L276 IsEmpty]: Start isEmpty. Operand 5824 states and 8208 transitions. [2019-11-07 00:18:33,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2019-11-07 00:18:33,574 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:18:33,575 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-07 00:18:33,575 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:18:33,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:18:33,575 INFO L82 PathProgramCache]: Analyzing trace with hash -1868063214, now seen corresponding path program 1 times [2019-11-07 00:18:33,576 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:18:33,576 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216451062] [2019-11-07 00:18:33,576 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:18:33,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:18:34,077 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 504 trivial. 0 not checked. [2019-11-07 00:18:34,078 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216451062] [2019-11-07 00:18:34,078 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:18:34,078 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-07 00:18:34,079 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037420835] [2019-11-07 00:18:34,079 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-07 00:18:34,080 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:18:34,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-07 00:18:34,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-07 00:18:34,080 INFO L87 Difference]: Start difference. First operand 5824 states and 8208 transitions. Second operand 4 states. [2019-11-07 00:18:34,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:18:34,321 INFO L93 Difference]: Finished difference Result 8824 states and 12428 transitions. [2019-11-07 00:18:34,322 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-07 00:18:34,322 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 400 [2019-11-07 00:18:34,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:18:34,362 INFO L225 Difference]: With dead ends: 8824 [2019-11-07 00:18:34,362 INFO L226 Difference]: Without dead ends: 5840 [2019-11-07 00:18:34,381 INFO L630 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 [2019-11-07 00:18:34,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5840 states. [2019-11-07 00:18:34,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5840 to 5832. [2019-11-07 00:18:34,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5832 states. [2019-11-07 00:18:34,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5832 states to 5832 states and 8216 transitions. [2019-11-07 00:18:34,724 INFO L78 Accepts]: Start accepts. Automaton has 5832 states and 8216 transitions. Word has length 400 [2019-11-07 00:18:34,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:18:34,725 INFO L462 AbstractCegarLoop]: Abstraction has 5832 states and 8216 transitions. [2019-11-07 00:18:34,725 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-07 00:18:34,725 INFO L276 IsEmpty]: Start isEmpty. Operand 5832 states and 8216 transitions. [2019-11-07 00:18:34,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2019-11-07 00:18:34,748 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:18:34,748 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-07 00:18:34,749 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:18:34,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:18:34,749 INFO L82 PathProgramCache]: Analyzing trace with hash -1944964012, now seen corresponding path program 1 times [2019-11-07 00:18:34,749 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:18:34,750 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123537402] [2019-11-07 00:18:34,750 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:18:35,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:18:35,589 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 504 trivial. 0 not checked. [2019-11-07 00:18:35,589 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123537402] [2019-11-07 00:18:35,589 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:18:35,590 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 00:18:35,590 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387904081] [2019-11-07 00:18:35,590 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 00:18:35,591 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:18:35,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 00:18:35,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 00:18:35,591 INFO L87 Difference]: Start difference. First operand 5832 states and 8216 transitions. Second operand 5 states. [2019-11-07 00:18:35,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:18:35,866 INFO L93 Difference]: Finished difference Result 11635 states and 16405 transitions. [2019-11-07 00:18:35,867 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-07 00:18:35,867 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 400 [2019-11-07 00:18:35,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:18:35,900 INFO L225 Difference]: With dead ends: 11635 [2019-11-07 00:18:35,900 INFO L226 Difference]: Without dead ends: 5864 [2019-11-07 00:18:35,924 INFO L630 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 [2019-11-07 00:18:35,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5864 states. [2019-11-07 00:18:36,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5864 to 5848. [2019-11-07 00:18:36,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5848 states. [2019-11-07 00:18:36,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5848 states to 5848 states and 8232 transitions. [2019-11-07 00:18:36,157 INFO L78 Accepts]: Start accepts. Automaton has 5848 states and 8232 transitions. Word has length 400 [2019-11-07 00:18:36,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:18:36,158 INFO L462 AbstractCegarLoop]: Abstraction has 5848 states and 8232 transitions. [2019-11-07 00:18:36,158 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 00:18:36,158 INFO L276 IsEmpty]: Start isEmpty. Operand 5848 states and 8232 transitions. [2019-11-07 00:18:36,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2019-11-07 00:18:36,188 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:18:36,189 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-07 00:18:36,189 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:18:36,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:18:36,190 INFO L82 PathProgramCache]: Analyzing trace with hash -223317360, now seen corresponding path program 1 times [2019-11-07 00:18:36,190 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:18:36,190 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418850813] [2019-11-07 00:18:36,190 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY