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 -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 0.1.24-112bae1 [2019-09-08 18:41:34,445 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 18:41:34,448 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 18:41:34,464 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-08 18:41:34,464 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-08 18:41:34,465 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-08 18:41:34,467 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-08 18:41:34,469 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-08 18:41:34,470 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-08 18:41:34,471 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-08 18:41:34,472 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-08 18:41:34,473 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-08 18:41:34,473 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 18:41:34,474 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 18:41:34,475 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 18:41:34,476 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 18:41:34,477 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 18:41:34,478 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 18:41:34,480 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 18:41:34,482 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 18:41:34,483 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 18:41:34,484 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 18:41:34,485 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 18:41:34,486 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 18:41:34,488 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-08 18:41:34,488 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-08 18:41:34,489 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-08 18:41:34,489 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-08 18:41:34,490 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-08 18:41:34,491 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-08 18:41:34,491 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-08 18:41:34,492 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-08 18:41:34,493 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-08 18:41:34,493 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-08 18:41:34,494 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-08 18:41:34,494 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-08 18:41:34,495 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-08 18:41:34,495 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-08 18:41:34,495 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 18:41:34,496 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 18:41:34,497 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 18:41:34,498 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 [2019-09-08 18:41:34,512 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 18:41:34,512 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 18:41:34,514 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 18:41:34,514 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 18:41:34,514 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 18:41:34,514 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 18:41:34,515 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 18:41:34,515 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 18:41:34,515 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 18:41:34,515 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 18:41:34,515 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 18:41:34,515 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 18:41:34,516 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 18:41:34,516 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 18:41:34,516 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 18:41:34,516 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 18:41:34,516 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 18:41:34,517 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 18:41:34,517 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 18:41:34,517 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 18:41:34,517 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 18:41:34,517 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 18:41:34,518 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 18:41:34,519 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 18:41:34,519 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 18:41:34,520 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 18:41:34,520 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 18:41:34,520 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 18:41:34,520 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 18:41:34,549 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 18:41:34,561 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 18:41:34,566 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 18:41:34,568 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 18:41:34,568 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 18:41:34,569 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-raid.ko-entry_point.cil.out.i [2019-09-08 18:41:34,643 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a3496d8d/d520f54f28004dfa83d319cc3ec6ed6f/FLAG0b76fad89 [2019-09-08 18:41:35,470 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 18:41:35,471 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-raid.ko-entry_point.cil.out.i [2019-09-08 18:41:35,512 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a3496d8d/d520f54f28004dfa83d319cc3ec6ed6f/FLAG0b76fad89 [2019-09-08 18:41:35,973 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a3496d8d/d520f54f28004dfa83d319cc3ec6ed6f [2019-09-08 18:41:35,985 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 18:41:35,986 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 18:41:35,988 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 18:41:35,988 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 18:41:35,991 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 18:41:35,992 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 06:41:35" (1/1) ... [2019-09-08 18:41:35,995 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dc0faf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:41:35, skipping insertion in model container [2019-09-08 18:41:35,995 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 06:41:35" (1/1) ... [2019-09-08 18:41:36,003 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 18:41:36,130 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 18:41:38,233 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 18:41:38,276 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 18:41:38,775 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 18:41:39,040 INFO L192 MainTranslator]: Completed translation [2019-09-08 18:41:39,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:41:39 WrapperNode [2019-09-08 18:41:39,042 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 18:41:39,042 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 18:41:39,043 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 18:41:39,043 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 18:41:39,057 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:41:39" (1/1) ... [2019-09-08 18:41:39,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:41:39" (1/1) ... [2019-09-08 18:41:39,160 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:41:39" (1/1) ... [2019-09-08 18:41:39,161 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:41:39" (1/1) ... [2019-09-08 18:41:39,304 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:41:39" (1/1) ... [2019-09-08 18:41:39,331 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:41:39" (1/1) ... [2019-09-08 18:41:39,367 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:41:39" (1/1) ... [2019-09-08 18:41:39,416 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 18:41:39,417 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 18:41:39,419 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 18:41:39,420 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 18:41:39,421 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:41:39" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 18:41:39,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 18:41:39,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 18:41:39,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2019-09-08 18:41:39,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~sector_t~0~X~~sector_t~0~X~$Pointer$~TO~int [2019-09-08 18:41:39,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-09-08 18:41:39,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2019-09-08 18:41:39,507 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2019-09-08 18:41:39,508 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2019-09-08 18:41:39,508 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2019-09-08 18:41:39,508 INFO L138 BoogieDeclarations]: Found implementation of procedure fls [2019-09-08 18:41:39,508 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight32 [2019-09-08 18:41:39,508 INFO L138 BoogieDeclarations]: Found implementation of procedure is_power_of_2 [2019-09-08 18:41:39,509 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoul [2019-09-08 18:41:39,509 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2019-09-08 18:41:39,510 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2019-09-08 18:41:39,510 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2019-09-08 18:41:39,512 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic64_read [2019-09-08 18:41:39,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-09-08 18:41:39,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-09-08 18:41:39,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-09-08 18:41:39,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-09-08 18:41:39,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-09-08 18:41:39,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-09-08 18:41:39,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-09-08 18:41:39,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-09-08 18:41:39,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-09-08 18:41:39,514 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2019-09-08 18:41:39,515 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-09-08 18:41:39,515 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-09-08 18:41:39,515 INFO L138 BoogieDeclarations]: Found implementation of procedure i_size_read [2019-09-08 18:41:39,515 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2019-09-08 18:41:39,515 INFO L138 BoogieDeclarations]: Found implementation of procedure bdev_get_queue [2019-09-08 18:41:39,515 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_logical_block_size [2019-09-08 18:41:39,515 INFO L138 BoogieDeclarations]: Found implementation of procedure bdev_logical_block_size [2019-09-08 18:41:39,516 INFO L138 BoogieDeclarations]: Found implementation of procedure mddev_lock_nointr [2019-09-08 18:41:39,516 INFO L138 BoogieDeclarations]: Found implementation of procedure to_sector [2019-09-08 18:41:39,516 INFO L138 BoogieDeclarations]: Found implementation of procedure raid10_md_layout_to_format [2019-09-08 18:41:39,516 INFO L138 BoogieDeclarations]: Found implementation of procedure raid10_md_layout_to_copies [2019-09-08 18:41:39,516 INFO L138 BoogieDeclarations]: Found implementation of procedure raid10_format_to_md_layout [2019-09-08 18:41:39,516 INFO L138 BoogieDeclarations]: Found implementation of procedure get_raid_type [2019-09-08 18:41:39,516 INFO L138 BoogieDeclarations]: Found implementation of procedure context_alloc [2019-09-08 18:41:39,517 INFO L138 BoogieDeclarations]: Found implementation of procedure context_free [2019-09-08 18:41:39,517 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_parms [2019-09-08 18:41:39,517 INFO L138 BoogieDeclarations]: Found implementation of procedure validate_region_size [2019-09-08 18:41:39,517 INFO L138 BoogieDeclarations]: Found implementation of procedure validate_raid_redundancy [2019-09-08 18:41:39,517 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_raid_params [2019-09-08 18:41:39,517 INFO L138 BoogieDeclarations]: Found implementation of procedure do_table_event [2019-09-08 18:41:39,518 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_is_congested [2019-09-08 18:41:39,518 INFO L138 BoogieDeclarations]: Found implementation of procedure read_disk_sb [2019-09-08 18:41:39,518 INFO L138 BoogieDeclarations]: Found implementation of procedure super_sync [2019-09-08 18:41:39,518 INFO L138 BoogieDeclarations]: Found implementation of procedure super_load [2019-09-08 18:41:39,518 INFO L138 BoogieDeclarations]: Found implementation of procedure super_init_validation [2019-09-08 18:41:39,518 INFO L138 BoogieDeclarations]: Found implementation of procedure super_validate [2019-09-08 18:41:39,518 INFO L138 BoogieDeclarations]: Found implementation of procedure analyse_superblocks [2019-09-08 18:41:39,519 INFO L138 BoogieDeclarations]: Found implementation of procedure configure_discard_support [2019-09-08 18:41:39,519 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_ctr [2019-09-08 18:41:39,519 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_dtr [2019-09-08 18:41:39,519 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_map [2019-09-08 18:41:39,519 INFO L138 BoogieDeclarations]: Found implementation of procedure decipher_sync_action [2019-09-08 18:41:39,520 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_status [2019-09-08 18:41:39,520 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_message [2019-09-08 18:41:39,520 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_iterate_devices [2019-09-08 18:41:39,521 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_io_hints [2019-09-08 18:41:39,521 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_presuspend [2019-09-08 18:41:39,521 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_postsuspend [2019-09-08 18:41:39,521 INFO L138 BoogieDeclarations]: Found implementation of procedure attempt_restore_of_faulty_devices [2019-09-08 18:41:39,522 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_resume [2019-09-08 18:41:39,522 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_merge [2019-09-08 18:41:39,522 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_raid_init [2019-09-08 18:41:39,523 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_raid_exit [2019-09-08 18:41:39,524 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2019-09-08 18:41:39,524 INFO L138 BoogieDeclarations]: Found implementation of procedure invoke_work_1 [2019-09-08 18:41:39,524 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2019-09-08 18:41:39,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_target_type_2 [2019-09-08 18:41:39,525 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_1 [2019-09-08 18:41:39,525 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2019-09-08 18:41:39,525 INFO L138 BoogieDeclarations]: Found implementation of procedure work_init_1 [2019-09-08 18:41:39,526 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 18:41:39,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2019-09-08 18:41:39,526 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-09-08 18:41:39,526 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-09-08 18:41:39,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_work_on_5 [2019-09-08 18:41:39,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_delayed_work_on_6 [2019-09-08 18:41:39,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_work_on_7 [2019-09-08 18:41:39,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_8 [2019-09-08 18:41:39,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_delayed_work_on_9 [2019-09-08 18:41:39,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_10 [2019-09-08 18:41:39,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2019-09-08 18:41:39,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_12 [2019-09-08 18:41:39,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_13 [2019-09-08 18:41:39,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_14 [2019-09-08 18:41:39,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_15 [2019-09-08 18:41:39,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_16 [2019-09-08 18:41:39,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_17 [2019-09-08 18:41:39,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_18 [2019-09-08 18:41:39,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_20 [2019-09-08 18:41:39,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-09-08 18:41:39,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2019-09-08 18:41:39,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-09-08 18:41:39,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-09-08 18:41:39,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-09-08 18:41:39,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-09-08 18:41:39,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_i_mutex_of_inode [2019-09-08 18:41:39,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_i_mutex_of_inode [2019-09-08 18:41:39,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_i_mutex_of_inode [2019-09-08 18:41:39,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_i_mutex_of_inode [2019-09-08 18:41:39,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2019-09-08 18:41:39,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_i_mutex_of_inode [2019-09-08 18:41:39,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_i_mutex_of_inode [2019-09-08 18:41:39,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_i_mutex_of_inode [2019-09-08 18:41:39,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_i_mutex_of_inode [2019-09-08 18:41:39,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_i_mutex_of_inode [2019-09-08 18:41:39,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_i_mutex_of_inode [2019-09-08 18:41:39,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2019-09-08 18:41:39,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2019-09-08 18:41:39,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2019-09-08 18:41:39,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2019-09-08 18:41:39,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-09-08 18:41:39,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2019-09-08 18:41:39,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2019-09-08 18:41:39,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_lock [2019-09-08 18:41:39,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_lock [2019-09-08 18:41:39,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_lock [2019-09-08 18:41:39,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_lock [2019-09-08 18:41:39,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-09-08 18:41:39,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2019-09-08 18:41:39,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2019-09-08 18:41:39,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2019-09-08 18:41:39,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-09-08 18:41:39,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2019-09-08 18:41:39,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2019-09-08 18:41:39,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_mutex_of_device [2019-09-08 18:41:39,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_mutex_of_device [2019-09-08 18:41:39,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2019-09-08 18:41:39,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_mutex_of_device [2019-09-08 18:41:39,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_reconfig_mutex_of_mddev [2019-09-08 18:41:39,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_reconfig_mutex_of_mddev [2019-09-08 18:41:39,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_reconfig_mutex_of_mddev [2019-09-08 18:41:39,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_reconfig_mutex_of_mddev [2019-09-08 18:41:39,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_reconfig_mutex_of_mddev [2019-09-08 18:41:39,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_reconfig_mutex_of_mddev [2019-09-08 18:41:39,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_reconfig_mutex_of_mddev [2019-09-08 18:41:39,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_reconfig_mutex_of_mddev [2019-09-08 18:41:39,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_reconfig_mutex_of_mddev [2019-09-08 18:41:39,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_reconfig_mutex_of_mddev [2019-09-08 18:41:39,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_reconfig_mutex_of_mddev [2019-09-08 18:41:39,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-09-08 18:41:39,554 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2019-09-08 18:41:39,554 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-09-08 18:41:39,554 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2019-09-08 18:41:39,554 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2019-09-08 18:41:39,554 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages_current [2019-09-08 18:41:39,555 INFO L138 BoogieDeclarations]: Found implementation of procedure bitmap_load [2019-09-08 18:41:39,555 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_limits_io_min [2019-09-08 18:41:39,555 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_limits_io_opt [2019-09-08 18:41:39,555 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_get_device [2019-09-08 18:41:39,555 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_put_device [2019-09-08 18:41:39,555 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_register_target [2019-09-08 18:41:39,555 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_set_target_max_io_len [2019-09-08 18:41:39,556 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_table_add_target_callbacks [2019-09-08 18:41:39,556 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_table_event [2019-09-08 18:41:39,556 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_table_get_mode [2019-09-08 18:41:39,556 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_unregister_target [2019-09-08 18:41:39,557 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2019-09-08 18:41:39,557 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoull [2019-09-08 18:41:39,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-09-08 18:41:39,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_preresume_2 [2019-09-08 18:41:39,558 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2019-09-08 18:41:39,558 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2019-09-08 18:41:39,558 INFO L138 BoogieDeclarations]: Found implementation of procedure md_error [2019-09-08 18:41:39,558 INFO L138 BoogieDeclarations]: Found implementation of procedure md_rdev_clear [2019-09-08 18:41:39,558 INFO L138 BoogieDeclarations]: Found implementation of procedure md_rdev_init [2019-09-08 18:41:39,558 INFO L138 BoogieDeclarations]: Found implementation of procedure md_reap_sync_thread [2019-09-08 18:41:39,558 INFO L138 BoogieDeclarations]: Found implementation of procedure md_run [2019-09-08 18:41:39,558 INFO L138 BoogieDeclarations]: Found implementation of procedure md_stop [2019-09-08 18:41:39,559 INFO L138 BoogieDeclarations]: Found implementation of procedure md_stop_writes [2019-09-08 18:41:39,559 INFO L138 BoogieDeclarations]: Found implementation of procedure md_wakeup_thread [2019-09-08 18:41:39,559 INFO L138 BoogieDeclarations]: Found implementation of procedure mddev_congested [2019-09-08 18:41:39,559 INFO L138 BoogieDeclarations]: Found implementation of procedure mddev_init [2019-09-08 18:41:39,559 INFO L138 BoogieDeclarations]: Found implementation of procedure mddev_resume [2019-09-08 18:41:39,559 INFO L138 BoogieDeclarations]: Found implementation of procedure mddev_suspend [2019-09-08 18:41:39,559 INFO L138 BoogieDeclarations]: Found implementation of procedure mddev_unlock [2019-09-08 18:41:39,560 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2019-09-08 18:41:39,560 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2019-09-08 18:41:39,560 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2019-09-08 18:41:39,560 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-09-08 18:41:39,560 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-09-08 18:41:39,560 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2019-09-08 18:41:39,560 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2019-09-08 18:41:39,560 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2019-09-08 18:41:39,561 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_set_cache_size [2019-09-08 18:41:39,561 INFO L138 BoogieDeclarations]: Found implementation of procedure scnprintf [2019-09-08 18:41:39,561 INFO L138 BoogieDeclarations]: Found implementation of procedure strcasecmp [2019-09-08 18:41:39,561 INFO L138 BoogieDeclarations]: Found implementation of procedure sync_page_io [2019-09-08 18:41:39,561 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-09-08 18:41:39,561 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-09-08 18:41:39,562 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-09-08 18:41:39,562 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-09-08 18:41:39,562 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 18:41:39,562 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-09-08 18:41:39,562 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2019-09-08 18:41:39,562 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2019-09-08 18:41:39,562 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2019-09-08 18:41:39,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-08 18:41:39,563 INFO L130 BoogieDeclarations]: Found specification of procedure fls [2019-09-08 18:41:39,563 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight32 [2019-09-08 18:41:39,563 INFO L130 BoogieDeclarations]: Found specification of procedure is_power_of_2 [2019-09-08 18:41:39,563 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-09-08 18:41:39,563 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoull [2019-09-08 18:41:39,563 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoul [2019-09-08 18:41:39,563 INFO L130 BoogieDeclarations]: Found specification of procedure scnprintf [2019-09-08 18:41:39,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-09-08 18:41:39,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-09-08 18:41:39,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-09-08 18:41:39,564 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2019-09-08 18:41:39,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-08 18:41:39,564 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2019-09-08 18:41:39,564 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2019-09-08 18:41:39,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-08 18:41:39,565 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2019-09-08 18:41:39,565 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2019-09-08 18:41:39,565 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2019-09-08 18:41:39,565 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-09-08 18:41:39,565 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2019-09-08 18:41:39,565 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp [2019-09-08 18:41:39,565 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2019-09-08 18:41:39,565 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-09-08 18:41:39,566 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-09-08 18:41:39,566 INFO L130 BoogieDeclarations]: Found specification of procedure atomic64_read [2019-09-08 18:41:39,566 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2019-09-08 18:41:39,566 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2019-09-08 18:41:39,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_13 [2019-09-08 18:41:39,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_20 [2019-09-08 18:41:39,566 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-09-08 18:41:39,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2019-09-08 18:41:39,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_14 [2019-09-08 18:41:39,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_15 [2019-09-08 18:41:39,567 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-08 18:41:39,567 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-08 18:41:39,567 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-08 18:41:39,567 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-09-08 18:41:39,567 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-09-08 18:41:39,568 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-08 18:41:39,568 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-09-08 18:41:39,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-08 18:41:39,568 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-09-08 18:41:39,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-09-08 18:41:39,568 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-09-08 18:41:39,568 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-09-08 18:41:39,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-09-08 18:41:39,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-09-08 18:41:39,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-09-08 18:41:39,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-09-08 18:41:39,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-09-08 18:41:39,569 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2019-09-08 18:41:39,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_17 [2019-09-08 18:41:39,569 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2019-09-08 18:41:39,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_10 [2019-09-08 18:41:39,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_12 [2019-09-08 18:41:39,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_16 [2019-09-08 18:41:39,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_18 [2019-09-08 18:41:39,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_i_mutex_of_inode [2019-09-08 18:41:39,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_i_mutex_of_inode [2019-09-08 18:41:39,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2019-09-08 18:41:39,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2019-09-08 18:41:39,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2019-09-08 18:41:39,572 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2019-09-08 18:41:39,576 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2019-09-08 18:41:39,576 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_reconfig_mutex_of_mddev [2019-09-08 18:41:39,576 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_reconfig_mutex_of_mddev [2019-09-08 18:41:39,577 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_reconfig_mutex_of_mddev [2019-09-08 18:41:39,577 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2019-09-08 18:41:39,580 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2019-09-08 18:41:39,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_work_on_5 [2019-09-08 18:41:39,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_work_on_7 [2019-09-08 18:41:39,581 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2019-09-08 18:41:39,581 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_delayed_work_on_6 [2019-09-08 18:41:39,581 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_delayed_work_on_9 [2019-09-08 18:41:39,581 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2019-09-08 18:41:39,581 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_8 [2019-09-08 18:41:39,581 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages_current [2019-09-08 18:41:39,582 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2019-09-08 18:41:39,582 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-09-08 18:41:39,582 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-09-08 18:41:39,582 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-09-08 18:41:39,582 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-09-08 18:41:39,582 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2019-09-08 18:41:39,582 INFO L130 BoogieDeclarations]: Found specification of procedure invoke_work_1 [2019-09-08 18:41:39,583 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2019-09-08 18:41:39,583 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_target_type_2 [2019-09-08 18:41:39,583 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_1 [2019-09-08 18:41:39,583 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2019-09-08 18:41:39,584 INFO L130 BoogieDeclarations]: Found specification of procedure work_init_1 [2019-09-08 18:41:39,584 INFO L130 BoogieDeclarations]: Found specification of procedure i_size_read [2019-09-08 18:41:39,584 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2019-09-08 18:41:39,584 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2019-09-08 18:41:39,584 INFO L130 BoogieDeclarations]: Found specification of procedure bdev_get_queue [2019-09-08 18:41:39,584 INFO L130 BoogieDeclarations]: Found specification of procedure blk_limits_io_min [2019-09-08 18:41:39,584 INFO L130 BoogieDeclarations]: Found specification of procedure blk_limits_io_opt [2019-09-08 18:41:39,585 INFO L130 BoogieDeclarations]: Found specification of procedure queue_logical_block_size [2019-09-08 18:41:39,585 INFO L130 BoogieDeclarations]: Found specification of procedure bdev_logical_block_size [2019-09-08 18:41:39,585 INFO L130 BoogieDeclarations]: Found specification of procedure mddev_lock_nointr [2019-09-08 18:41:39,585 INFO L130 BoogieDeclarations]: Found specification of procedure mddev_unlock [2019-09-08 18:41:39,585 INFO L130 BoogieDeclarations]: Found specification of procedure md_wakeup_thread [2019-09-08 18:41:39,585 INFO L130 BoogieDeclarations]: Found specification of procedure md_reap_sync_thread [2019-09-08 18:41:39,586 INFO L130 BoogieDeclarations]: Found specification of procedure md_error [2019-09-08 18:41:39,586 INFO L130 BoogieDeclarations]: Found specification of procedure mddev_congested [2019-09-08 18:41:39,586 INFO L130 BoogieDeclarations]: Found specification of procedure sync_page_io [2019-09-08 18:41:39,586 INFO L130 BoogieDeclarations]: Found specification of procedure mddev_init [2019-09-08 18:41:39,586 INFO L130 BoogieDeclarations]: Found specification of procedure md_run [2019-09-08 18:41:39,586 INFO L130 BoogieDeclarations]: Found specification of procedure md_stop [2019-09-08 18:41:39,587 INFO L130 BoogieDeclarations]: Found specification of procedure md_stop_writes [2019-09-08 18:41:39,587 INFO L130 BoogieDeclarations]: Found specification of procedure md_rdev_init [2019-09-08 18:41:39,587 INFO L130 BoogieDeclarations]: Found specification of procedure md_rdev_clear [2019-09-08 18:41:39,587 INFO L130 BoogieDeclarations]: Found specification of procedure mddev_suspend [2019-09-08 18:41:39,587 INFO L130 BoogieDeclarations]: Found specification of procedure mddev_resume [2019-09-08 18:41:39,587 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_set_cache_size [2019-09-08 18:41:39,587 INFO L130 BoogieDeclarations]: Found specification of procedure bitmap_load [2019-09-08 18:41:39,588 INFO L130 BoogieDeclarations]: Found specification of procedure dm_get_device [2019-09-08 18:41:39,588 INFO L130 BoogieDeclarations]: Found specification of procedure dm_put_device [2019-09-08 18:41:39,588 INFO L130 BoogieDeclarations]: Found specification of procedure dm_register_target [2019-09-08 18:41:39,588 INFO L130 BoogieDeclarations]: Found specification of procedure dm_unregister_target [2019-09-08 18:41:39,588 INFO L130 BoogieDeclarations]: Found specification of procedure dm_table_add_target_callbacks [2019-09-08 18:41:39,588 INFO L130 BoogieDeclarations]: Found specification of procedure dm_set_target_max_io_len [2019-09-08 18:41:39,588 INFO L130 BoogieDeclarations]: Found specification of procedure dm_table_get_mode [2019-09-08 18:41:39,589 INFO L130 BoogieDeclarations]: Found specification of procedure dm_table_event [2019-09-08 18:41:39,589 INFO L130 BoogieDeclarations]: Found specification of procedure to_sector [2019-09-08 18:41:39,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-08 18:41:39,589 INFO L130 BoogieDeclarations]: Found specification of procedure raid10_md_layout_to_format [2019-09-08 18:41:39,589 INFO L130 BoogieDeclarations]: Found specification of procedure raid10_md_layout_to_copies [2019-09-08 18:41:39,589 INFO L130 BoogieDeclarations]: Found specification of procedure raid10_format_to_md_layout [2019-09-08 18:41:39,589 INFO L130 BoogieDeclarations]: Found specification of procedure get_raid_type [2019-09-08 18:41:39,590 INFO L130 BoogieDeclarations]: Found specification of procedure context_alloc [2019-09-08 18:41:39,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-08 18:41:39,590 INFO L130 BoogieDeclarations]: Found specification of procedure context_free [2019-09-08 18:41:39,590 INFO L130 BoogieDeclarations]: Found specification of procedure dev_parms [2019-09-08 18:41:39,590 INFO L130 BoogieDeclarations]: Found specification of procedure validate_region_size [2019-09-08 18:41:39,590 INFO L130 BoogieDeclarations]: Found specification of procedure validate_raid_redundancy [2019-09-08 18:41:39,590 INFO L130 BoogieDeclarations]: Found specification of procedure parse_raid_params [2019-09-08 18:41:39,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-08 18:41:39,591 INFO L130 BoogieDeclarations]: Found specification of procedure do_table_event [2019-09-08 18:41:39,591 INFO L130 BoogieDeclarations]: Found specification of procedure raid_is_congested [2019-09-08 18:41:39,591 INFO L130 BoogieDeclarations]: Found specification of procedure read_disk_sb [2019-09-08 18:41:39,591 INFO L130 BoogieDeclarations]: Found specification of procedure super_sync [2019-09-08 18:41:39,591 INFO L130 BoogieDeclarations]: Found specification of procedure super_load [2019-09-08 18:41:39,591 INFO L130 BoogieDeclarations]: Found specification of procedure super_init_validation [2019-09-08 18:41:39,592 INFO L130 BoogieDeclarations]: Found specification of procedure super_validate [2019-09-08 18:41:39,592 INFO L130 BoogieDeclarations]: Found specification of procedure analyse_superblocks [2019-09-08 18:41:39,592 INFO L130 BoogieDeclarations]: Found specification of procedure configure_discard_support [2019-09-08 18:41:39,592 INFO L130 BoogieDeclarations]: Found specification of procedure raid_ctr [2019-09-08 18:41:39,592 INFO L130 BoogieDeclarations]: Found specification of procedure raid_dtr [2019-09-08 18:41:39,592 INFO L130 BoogieDeclarations]: Found specification of procedure raid_map [2019-09-08 18:41:39,593 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2019-09-08 18:41:39,593 INFO L130 BoogieDeclarations]: Found specification of procedure decipher_sync_action [2019-09-08 18:41:39,593 INFO L130 BoogieDeclarations]: Found specification of procedure raid_status [2019-09-08 18:41:39,593 INFO L130 BoogieDeclarations]: Found specification of procedure raid_message [2019-09-08 18:41:39,593 INFO L130 BoogieDeclarations]: Found specification of procedure raid_iterate_devices [2019-09-08 18:41:39,593 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~sector_t~0~X~~sector_t~0~X~$Pointer$~TO~int [2019-09-08 18:41:39,593 INFO L130 BoogieDeclarations]: Found specification of procedure raid_io_hints [2019-09-08 18:41:39,594 INFO L130 BoogieDeclarations]: Found specification of procedure raid_presuspend [2019-09-08 18:41:39,594 INFO L130 BoogieDeclarations]: Found specification of procedure raid_postsuspend [2019-09-08 18:41:39,594 INFO L130 BoogieDeclarations]: Found specification of procedure attempt_restore_of_faulty_devices [2019-09-08 18:41:39,594 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-09-08 18:41:39,594 INFO L130 BoogieDeclarations]: Found specification of procedure raid_resume [2019-09-08 18:41:39,594 INFO L130 BoogieDeclarations]: Found specification of procedure raid_merge [2019-09-08 18:41:39,594 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2019-09-08 18:41:39,595 INFO L130 BoogieDeclarations]: Found specification of procedure dm_raid_init [2019-09-08 18:41:39,595 INFO L130 BoogieDeclarations]: Found specification of procedure dm_raid_exit [2019-09-08 18:41:39,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_preresume_2 [2019-09-08 18:41:39,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-09-08 18:41:39,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-09-08 18:41:39,595 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 18:41:39,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-09-08 18:41:39,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2019-09-08 18:41:39,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-09-08 18:41:39,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_i_mutex_of_inode [2019-09-08 18:41:39,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_i_mutex_of_inode [2019-09-08 18:41:39,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_i_mutex_of_inode [2019-09-08 18:41:39,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2019-09-08 18:41:39,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_i_mutex_of_inode [2019-09-08 18:41:39,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_i_mutex_of_inode [2019-09-08 18:41:39,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_i_mutex_of_inode [2019-09-08 18:41:39,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_i_mutex_of_inode [2019-09-08 18:41:39,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_i_mutex_of_inode [2019-09-08 18:41:39,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2019-09-08 18:41:39,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2019-09-08 18:41:39,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2019-09-08 18:41:39,598 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-09-08 18:41:39,598 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2019-09-08 18:41:39,598 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_lock [2019-09-08 18:41:39,598 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_lock [2019-09-08 18:41:39,598 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_lock [2019-09-08 18:41:39,598 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_lock [2019-09-08 18:41:39,600 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-09-08 18:41:39,600 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2019-09-08 18:41:39,600 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-09-08 18:41:39,600 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2019-09-08 18:41:39,600 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_mutex_of_device [2019-09-08 18:41:39,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_mutex_of_device [2019-09-08 18:41:39,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2019-09-08 18:41:39,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_mutex_of_device [2019-09-08 18:41:39,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_reconfig_mutex_of_mddev [2019-09-08 18:41:39,602 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_reconfig_mutex_of_mddev [2019-09-08 18:41:39,602 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_reconfig_mutex_of_mddev [2019-09-08 18:41:39,602 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_reconfig_mutex_of_mddev [2019-09-08 18:41:39,602 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_reconfig_mutex_of_mddev [2019-09-08 18:41:39,602 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_reconfig_mutex_of_mddev [2019-09-08 18:41:39,602 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_reconfig_mutex_of_mddev [2019-09-08 18:41:39,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_reconfig_mutex_of_mddev [2019-09-08 18:41:39,603 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-09-08 18:41:39,603 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-09-08 18:41:39,603 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-09-08 18:41:39,603 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-08 18:41:39,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 18:41:39,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-08 18:41:39,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-08 18:41:39,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 18:41:40,682 INFO L684 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-09-08 18:41:49,113 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 18:41:49,113 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-08 18:41:49,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 06:41:49 BoogieIcfgContainer [2019-09-08 18:41:49,116 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 18:41:49,117 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 18:41:49,117 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 18:41:49,120 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 18:41:49,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 06:41:35" (1/3) ... [2019-09-08 18:41:49,122 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@254937bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 06:41:49, skipping insertion in model container [2019-09-08 18:41:49,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:41:39" (2/3) ... [2019-09-08 18:41:49,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@254937bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 06:41:49, skipping insertion in model container [2019-09-08 18:41:49,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 06:41:49" (3/3) ... [2019-09-08 18:41:49,126 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-raid.ko-entry_point.cil.out.i [2019-09-08 18:41:49,136 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 18:41:49,150 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 18:41:49,168 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 18:41:49,217 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 18:41:49,218 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 18:41:49,218 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 18:41:49,218 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 18:41:49,218 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 18:41:49,219 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 18:41:49,219 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 18:41:49,219 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 18:41:49,219 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 18:41:49,322 INFO L276 IsEmpty]: Start isEmpty. Operand 1658 states. [2019-09-08 18:41:49,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2019-09-08 18:41:49,341 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 18:41:49,343 INFO L399 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] [2019-09-08 18:41:49,345 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 18:41:49,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 18:41:49,351 INFO L82 PathProgramCache]: Analyzing trace with hash 1913972526, now seen corresponding path program 1 times [2019-09-08 18:41:49,353 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 18:41:49,353 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 18:41:49,427 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 18:41:49,427 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 18:41:49,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 18:41:49,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 18:41:50,422 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 413 trivial. 0 not checked. [2019-09-08 18:41:50,425 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 18:41:50,426 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 18:41:50,431 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 18:41:50,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 18:41:50,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 18:41:50,453 INFO L87 Difference]: Start difference. First operand 1658 states. Second operand 3 states. [2019-09-08 18:41:53,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 18:41:53,380 INFO L93 Difference]: Finished difference Result 4043 states and 5668 transitions. [2019-09-08 18:41:53,380 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 18:41:53,382 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 189 [2019-09-08 18:41:53,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 18:41:53,436 INFO L225 Difference]: With dead ends: 4043 [2019-09-08 18:41:53,437 INFO L226 Difference]: Without dead ends: 2675 [2019-09-08 18:41:53,453 INFO L628 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 [2019-09-08 18:41:53,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2675 states. [2019-09-08 18:41:53,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2675 to 2672. [2019-09-08 18:41:53,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2672 states. [2019-09-08 18:41:53,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2672 states to 2672 states and 3723 transitions. [2019-09-08 18:41:53,707 INFO L78 Accepts]: Start accepts. Automaton has 2672 states and 3723 transitions. Word has length 189 [2019-09-08 18:41:53,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 18:41:53,711 INFO L475 AbstractCegarLoop]: Abstraction has 2672 states and 3723 transitions. [2019-09-08 18:41:53,711 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 18:41:53,711 INFO L276 IsEmpty]: Start isEmpty. Operand 2672 states and 3723 transitions. [2019-09-08 18:41:53,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2019-09-08 18:41:53,739 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 18:41:53,739 INFO L399 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] [2019-09-08 18:41:53,740 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 18:41:53,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 18:41:53,742 INFO L82 PathProgramCache]: Analyzing trace with hash 349202107, now seen corresponding path program 1 times [2019-09-08 18:41:53,742 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 18:41:53,742 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 18:41:53,745 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 18:41:53,745 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 18:41:53,746 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 18:41:53,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 18:41:54,218 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 413 trivial. 0 not checked. [2019-09-08 18:41:54,218 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 18:41:54,218 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 18:41:54,220 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 18:41:54,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 18:41:54,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 18:41:54,221 INFO L87 Difference]: Start difference. First operand 2672 states and 3723 transitions. Second operand 3 states. [2019-09-08 18:41:54,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 18:41:54,302 INFO L93 Difference]: Finished difference Result 2674 states and 3724 transitions. [2019-09-08 18:41:54,302 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 18:41:54,303 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 194 [2019-09-08 18:41:54,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 18:41:54,320 INFO L225 Difference]: With dead ends: 2674 [2019-09-08 18:41:54,320 INFO L226 Difference]: Without dead ends: 2671 [2019-09-08 18:41:54,323 INFO L628 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 [2019-09-08 18:41:54,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2671 states. [2019-09-08 18:41:54,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2671 to 2671. [2019-09-08 18:41:54,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2671 states. [2019-09-08 18:41:54,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2671 states to 2671 states and 3721 transitions. [2019-09-08 18:41:54,439 INFO L78 Accepts]: Start accepts. Automaton has 2671 states and 3721 transitions. Word has length 194 [2019-09-08 18:41:54,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 18:41:54,440 INFO L475 AbstractCegarLoop]: Abstraction has 2671 states and 3721 transitions. [2019-09-08 18:41:54,440 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 18:41:54,440 INFO L276 IsEmpty]: Start isEmpty. Operand 2671 states and 3721 transitions. [2019-09-08 18:41:54,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2019-09-08 18:41:54,444 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 18:41:54,444 INFO L399 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] [2019-09-08 18:41:54,445 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 18:41:54,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 18:41:54,445 INFO L82 PathProgramCache]: Analyzing trace with hash -2060217179, now seen corresponding path program 1 times [2019-09-08 18:41:54,445 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 18:41:54,445 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 18:41:54,448 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 18:41:54,448 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 18:41:54,448 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 18:41:54,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 18:41:55,514 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 413 trivial. 0 not checked. [2019-09-08 18:41:55,514 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 18:41:55,515 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 18:41:55,515 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 18:41:55,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 18:41:55,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 18:41:55,516 INFO L87 Difference]: Start difference. First operand 2671 states and 3721 transitions. Second operand 3 states. [2019-09-08 18:41:55,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 18:41:55,600 INFO L93 Difference]: Finished difference Result 2673 states and 3722 transitions. [2019-09-08 18:41:55,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 18:41:55,600 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 195 [2019-09-08 18:41:55,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 18:41:55,627 INFO L225 Difference]: With dead ends: 2673 [2019-09-08 18:41:55,627 INFO L226 Difference]: Without dead ends: 2670 [2019-09-08 18:41:55,629 INFO L628 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 [2019-09-08 18:41:55,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2670 states. [2019-09-08 18:41:55,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2670 to 2670. [2019-09-08 18:41:55,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2670 states. [2019-09-08 18:41:55,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2670 states to 2670 states and 3719 transitions. [2019-09-08 18:41:55,774 INFO L78 Accepts]: Start accepts. Automaton has 2670 states and 3719 transitions. Word has length 195 [2019-09-08 18:41:55,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 18:41:55,775 INFO L475 AbstractCegarLoop]: Abstraction has 2670 states and 3719 transitions. [2019-09-08 18:41:55,775 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 18:41:55,775 INFO L276 IsEmpty]: Start isEmpty. Operand 2670 states and 3719 transitions. [2019-09-08 18:41:55,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2019-09-08 18:41:55,779 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 18:41:55,780 INFO L399 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] [2019-09-08 18:41:55,780 INFO L418 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 18:41:55,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 18:41:55,780 INFO L82 PathProgramCache]: Analyzing trace with hash 557201150, now seen corresponding path program 1 times [2019-09-08 18:41:55,780 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 18:41:55,780 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 18:41:55,783 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 18:41:55,783 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 18:41:55,784 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 18:41:55,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 18:41:56,106 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 413 trivial. 0 not checked. [2019-09-08 18:41:56,107 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 18:41:56,107 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 18:41:56,108 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 18:41:56,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 18:41:56,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 18:41:56,109 INFO L87 Difference]: Start difference. First operand 2670 states and 3719 transitions. Second operand 3 states. [2019-09-08 18:41:56,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 18:41:56,186 INFO L93 Difference]: Finished difference Result 2672 states and 3720 transitions. [2019-09-08 18:41:56,187 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 18:41:56,187 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 196 [2019-09-08 18:41:56,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 18:41:56,204 INFO L225 Difference]: With dead ends: 2672 [2019-09-08 18:41:56,204 INFO L226 Difference]: Without dead ends: 2669 [2019-09-08 18:41:56,207 INFO L628 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 [2019-09-08 18:41:56,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2669 states. [2019-09-08 18:41:56,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2669 to 2669. [2019-09-08 18:41:56,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2669 states. [2019-09-08 18:41:56,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2669 states to 2669 states and 3717 transitions. [2019-09-08 18:41:56,325 INFO L78 Accepts]: Start accepts. Automaton has 2669 states and 3717 transitions. Word has length 196 [2019-09-08 18:41:56,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 18:41:56,325 INFO L475 AbstractCegarLoop]: Abstraction has 2669 states and 3717 transitions. [2019-09-08 18:41:56,326 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 18:41:56,326 INFO L276 IsEmpty]: Start isEmpty. Operand 2669 states and 3717 transitions. [2019-09-08 18:41:56,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2019-09-08 18:41:56,330 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 18:41:56,330 INFO L399 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] [2019-09-08 18:41:56,330 INFO L418 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 18:41:56,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 18:41:56,331 INFO L82 PathProgramCache]: Analyzing trace with hash 92795592, now seen corresponding path program 1 times [2019-09-08 18:41:56,331 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 18:41:56,331 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 18:41:56,333 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 18:41:56,334 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 18:41:56,334 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 18:41:56,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 18:41:56,666 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 413 trivial. 0 not checked. [2019-09-08 18:41:56,667 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 18:41:56,667 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 18:41:56,668 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 18:41:56,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 18:41:56,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 18:41:56,668 INFO L87 Difference]: Start difference. First operand 2669 states and 3717 transitions. Second operand 3 states. [2019-09-08 18:41:56,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 18:41:56,854 INFO L93 Difference]: Finished difference Result 5229 states and 7310 transitions. [2019-09-08 18:41:56,855 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 18:41:56,855 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 197 [2019-09-08 18:41:56,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 18:41:56,887 INFO L225 Difference]: With dead ends: 5229 [2019-09-08 18:41:56,887 INFO L226 Difference]: Without dead ends: 5212 [2019-09-08 18:41:56,892 INFO L628 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 [2019-09-08 18:41:56,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5212 states. [2019-09-08 18:41:57,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5212 to 5212. [2019-09-08 18:41:57,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5212 states. [2019-09-08 18:41:57,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5212 states to 5212 states and 7289 transitions. [2019-09-08 18:41:57,214 INFO L78 Accepts]: Start accepts. Automaton has 5212 states and 7289 transitions. Word has length 197 [2019-09-08 18:41:57,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 18:41:57,215 INFO L475 AbstractCegarLoop]: Abstraction has 5212 states and 7289 transitions. [2019-09-08 18:41:57,215 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 18:41:57,215 INFO L276 IsEmpty]: Start isEmpty. Operand 5212 states and 7289 transitions. [2019-09-08 18:41:57,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2019-09-08 18:41:57,237 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 18:41:57,238 INFO L399 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] [2019-09-08 18:41:57,238 INFO L418 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 18:41:57,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 18:41:57,239 INFO L82 PathProgramCache]: Analyzing trace with hash -21004350, now seen corresponding path program 1 times [2019-09-08 18:41:57,239 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 18:41:57,239 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 18:41:57,244 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 18:41:57,245 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 18:41:57,245 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 18:41:57,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 18:41:57,717 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked. [2019-09-08 18:41:57,718 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 18:41:57,718 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 18:41:57,719 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 18:41:57,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 18:41:57,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 18:41:57,720 INFO L87 Difference]: Start difference. First operand 5212 states and 7289 transitions. Second operand 3 states. [2019-09-08 18:41:58,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 18:41:58,457 INFO L93 Difference]: Finished difference Result 10607 states and 14824 transitions. [2019-09-08 18:41:58,458 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 18:41:58,458 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 370 [2019-09-08 18:41:58,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 18:41:58,494 INFO L225 Difference]: With dead ends: 10607 [2019-09-08 18:41:58,495 INFO L226 Difference]: Without dead ends: 5444 [2019-09-08 18:41:58,526 INFO L628 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 [2019-09-08 18:41:58,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5444 states. [2019-09-08 18:41:58,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5444 to 5428. [2019-09-08 18:41:58,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5428 states. [2019-09-08 18:41:58,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5428 states to 5428 states and 7580 transitions. [2019-09-08 18:41:58,797 INFO L78 Accepts]: Start accepts. Automaton has 5428 states and 7580 transitions. Word has length 370 [2019-09-08 18:41:58,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 18:41:58,797 INFO L475 AbstractCegarLoop]: Abstraction has 5428 states and 7580 transitions. [2019-09-08 18:41:58,797 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 18:41:58,798 INFO L276 IsEmpty]: Start isEmpty. Operand 5428 states and 7580 transitions. [2019-09-08 18:41:58,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2019-09-08 18:41:58,827 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 18:41:58,827 INFO L399 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] [2019-09-08 18:41:58,828 INFO L418 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 18:41:58,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 18:41:58,828 INFO L82 PathProgramCache]: Analyzing trace with hash 1292983767, now seen corresponding path program 1 times [2019-09-08 18:41:58,828 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 18:41:58,829 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 18:41:58,832 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 18:41:58,832 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 18:41:58,832 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 18:41:58,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 18:41:59,420 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 504 trivial. 0 not checked. [2019-09-08 18:41:59,420 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 18:41:59,420 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 18:41:59,422 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 18:41:59,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 18:41:59,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 18:41:59,422 INFO L87 Difference]: Start difference. First operand 5428 states and 7580 transitions. Second operand 3 states. [2019-09-08 18:41:59,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 18:41:59,625 INFO L93 Difference]: Finished difference Result 10799 states and 15099 transitions. [2019-09-08 18:41:59,625 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 18:41:59,626 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 398 [2019-09-08 18:41:59,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 18:41:59,682 INFO L225 Difference]: With dead ends: 10799 [2019-09-08 18:41:59,682 INFO L226 Difference]: Without dead ends: 5432 [2019-09-08 18:41:59,713 INFO L628 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 [2019-09-08 18:41:59,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5432 states. [2019-09-08 18:41:59,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5432 to 5432. [2019-09-08 18:41:59,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5432 states. [2019-09-08 18:41:59,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5432 states to 5432 states and 7584 transitions. [2019-09-08 18:41:59,959 INFO L78 Accepts]: Start accepts. Automaton has 5432 states and 7584 transitions. Word has length 398 [2019-09-08 18:41:59,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 18:41:59,960 INFO L475 AbstractCegarLoop]: Abstraction has 5432 states and 7584 transitions. [2019-09-08 18:41:59,961 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 18:41:59,961 INFO L276 IsEmpty]: Start isEmpty. Operand 5432 states and 7584 transitions. [2019-09-08 18:41:59,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2019-09-08 18:41:59,981 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 18:41:59,982 INFO L399 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] [2019-09-08 18:41:59,982 INFO L418 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 18:41:59,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 18:41:59,983 INFO L82 PathProgramCache]: Analyzing trace with hash -476487847, now seen corresponding path program 1 times [2019-09-08 18:41:59,983 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 18:41:59,983 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 18:41:59,986 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 18:41:59,986 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 18:41:59,986 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 18:42:00,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 18:42:00,461 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 504 trivial. 0 not checked. [2019-09-08 18:42:00,461 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 18:42:00,462 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 18:42:00,463 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 18:42:00,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 18:42:00,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 18:42:00,464 INFO L87 Difference]: Start difference. First operand 5432 states and 7584 transitions. Second operand 3 states. [2019-09-08 18:42:00,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 18:42:00,763 INFO L93 Difference]: Finished difference Result 10943 states and 15323 transitions. [2019-09-08 18:42:00,764 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 18:42:00,764 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 398 [2019-09-08 18:42:00,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 18:42:00,792 INFO L225 Difference]: With dead ends: 10943 [2019-09-08 18:42:00,792 INFO L226 Difference]: Without dead ends: 5572 [2019-09-08 18:42:00,816 INFO L628 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 [2019-09-08 18:42:00,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5572 states. [2019-09-08 18:42:01,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5572 to 5560. [2019-09-08 18:42:01,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5560 states. [2019-09-08 18:42:01,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5560 states to 5560 states and 7788 transitions. [2019-09-08 18:42:01,050 INFO L78 Accepts]: Start accepts. Automaton has 5560 states and 7788 transitions. Word has length 398 [2019-09-08 18:42:01,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 18:42:01,051 INFO L475 AbstractCegarLoop]: Abstraction has 5560 states and 7788 transitions. [2019-09-08 18:42:01,051 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 18:42:01,051 INFO L276 IsEmpty]: Start isEmpty. Operand 5560 states and 7788 transitions. [2019-09-08 18:42:01,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2019-09-08 18:42:01,072 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 18:42:01,072 INFO L399 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] [2019-09-08 18:42:01,072 INFO L418 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 18:42:01,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 18:42:01,073 INFO L82 PathProgramCache]: Analyzing trace with hash 1438638363, now seen corresponding path program 1 times [2019-09-08 18:42:01,073 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 18:42:01,073 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 18:42:01,075 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 18:42:01,075 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 18:42:01,075 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 18:42:01,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 18:42:01,519 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 504 trivial. 0 not checked. [2019-09-08 18:42:01,519 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 18:42:01,519 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-08 18:42:01,520 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-08 18:42:01,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-08 18:42:01,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-08 18:42:01,521 INFO L87 Difference]: Start difference. First operand 5560 states and 7788 transitions. Second operand 4 states. [2019-09-08 18:42:01,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 18:42:01,721 INFO L93 Difference]: Finished difference Result 11339 states and 15959 transitions. [2019-09-08 18:42:01,722 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 18:42:01,722 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 399 [2019-09-08 18:42:01,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 18:42:01,752 INFO L225 Difference]: With dead ends: 11339 [2019-09-08 18:42:01,752 INFO L226 Difference]: Without dead ends: 5840 [2019-09-08 18:42:01,777 INFO L628 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 [2019-09-08 18:42:01,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5840 states. [2019-09-08 18:42:01,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5840 to 5824. [2019-09-08 18:42:01,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5824 states. [2019-09-08 18:42:01,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5824 states to 5824 states and 8208 transitions. [2019-09-08 18:42:01,989 INFO L78 Accepts]: Start accepts. Automaton has 5824 states and 8208 transitions. Word has length 399 [2019-09-08 18:42:01,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 18:42:01,990 INFO L475 AbstractCegarLoop]: Abstraction has 5824 states and 8208 transitions. [2019-09-08 18:42:01,990 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-08 18:42:01,990 INFO L276 IsEmpty]: Start isEmpty. Operand 5824 states and 8208 transitions. [2019-09-08 18:42:02,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2019-09-08 18:42:02,011 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 18:42:02,012 INFO L399 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] [2019-09-08 18:42:02,012 INFO L418 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 18:42:02,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 18:42:02,013 INFO L82 PathProgramCache]: Analyzing trace with hash -1868063214, now seen corresponding path program 1 times [2019-09-08 18:42:02,013 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 18:42:02,013 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 18:42:02,015 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 18:42:02,015 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 18:42:02,016 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 18:42:02,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 18:42:02,543 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 504 trivial. 0 not checked. [2019-09-08 18:42:02,543 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 18:42:02,543 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-08 18:42:02,545 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-08 18:42:02,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-08 18:42:02,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-08 18:42:02,555 INFO L87 Difference]: Start difference. First operand 5824 states and 8208 transitions. Second operand 4 states. [2019-09-08 18:42:02,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 18:42:02,739 INFO L93 Difference]: Finished difference Result 8824 states and 12428 transitions. [2019-09-08 18:42:02,740 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 18:42:02,740 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 400 [2019-09-08 18:42:02,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 18:42:02,779 INFO L225 Difference]: With dead ends: 8824 [2019-09-08 18:42:02,779 INFO L226 Difference]: Without dead ends: 5840 [2019-09-08 18:42:02,796 INFO L628 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 [2019-09-08 18:42:02,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5840 states. [2019-09-08 18:42:03,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5840 to 5832. [2019-09-08 18:42:03,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5832 states. [2019-09-08 18:42:03,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5832 states to 5832 states and 8216 transitions. [2019-09-08 18:42:03,036 INFO L78 Accepts]: Start accepts. Automaton has 5832 states and 8216 transitions. Word has length 400 [2019-09-08 18:42:03,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 18:42:03,037 INFO L475 AbstractCegarLoop]: Abstraction has 5832 states and 8216 transitions. [2019-09-08 18:42:03,038 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-08 18:42:03,038 INFO L276 IsEmpty]: Start isEmpty. Operand 5832 states and 8216 transitions. [2019-09-08 18:42:03,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2019-09-08 18:42:03,066 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 18:42:03,066 INFO L399 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] [2019-09-08 18:42:03,067 INFO L418 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 18:42:03,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 18:42:03,067 INFO L82 PathProgramCache]: Analyzing trace with hash -1944964012, now seen corresponding path program 1 times [2019-09-08 18:42:03,068 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 18:42:03,068 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 18:42:03,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 18:42:03,071 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 18:42:03,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 18:42:03,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 18:42:03,736 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 504 trivial. 0 not checked. [2019-09-08 18:42:03,737 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 18:42:03,737 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 18:42:03,738 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 18:42:03,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 18:42:03,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 18:42:03,738 INFO L87 Difference]: Start difference. First operand 5832 states and 8216 transitions. Second operand 5 states. [2019-09-08 18:42:03,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 18:42:03,952 INFO L93 Difference]: Finished difference Result 11627 states and 16391 transitions. [2019-09-08 18:42:03,952 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 18:42:03,952 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 400 [2019-09-08 18:42:03,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 18:42:03,979 INFO L225 Difference]: With dead ends: 11627 [2019-09-08 18:42:03,979 INFO L226 Difference]: Without dead ends: 5856 [2019-09-08 18:42:04,003 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 18:42:04,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5856 states. [2019-09-08 18:42:04,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5856 to 5852. [2019-09-08 18:42:04,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5852 states. [2019-09-08 18:42:04,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5852 states to 5852 states and 8236 transitions. [2019-09-08 18:42:04,356 INFO L78 Accepts]: Start accepts. Automaton has 5852 states and 8236 transitions. Word has length 400 [2019-09-08 18:42:04,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 18:42:04,357 INFO L475 AbstractCegarLoop]: Abstraction has 5852 states and 8236 transitions. [2019-09-08 18:42:04,357 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 18:42:04,357 INFO L276 IsEmpty]: Start isEmpty. Operand 5852 states and 8236 transitions. [2019-09-08 18:42:04,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2019-09-08 18:42:04,381 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 18:42:04,382 INFO L399 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] [2019-09-08 18:42:04,382 INFO L418 AbstractCegarLoop]: === Iteration 12 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 18:42:04,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 18:42:04,382 INFO L82 PathProgramCache]: Analyzing trace with hash -1492967917, now seen corresponding path program 1 times [2019-09-08 18:42:04,383 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 18:42:04,383 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 18:42:04,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 18:42:04,385 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 18:42:04,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 18:42:04,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 18:42:04,876 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 504 trivial. 0 not checked. [2019-09-08 18:42:04,877 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 18:42:04,877 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 18:42:04,877 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 18:42:04,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 18:42:04,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 18:42:04,878 INFO L87 Difference]: Start difference. First operand 5852 states and 8236 transitions. Second operand 5 states. [2019-09-08 18:42:05,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 18:42:05,126 INFO L93 Difference]: Finished difference Result 11675 states and 16445 transitions. [2019-09-08 18:42:05,127 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 18:42:05,127 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 402 [2019-09-08 18:42:05,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 18:42:05,153 INFO L225 Difference]: With dead ends: 11675 [2019-09-08 18:42:05,153 INFO L226 Difference]: Without dead ends: 5884 [2019-09-08 18:42:05,170 INFO L628 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 [2019-09-08 18:42:05,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5884 states. [2019-09-08 18:42:05,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5884 to 5868. [2019-09-08 18:42:05,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5868 states. [2019-09-08 18:42:05,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5868 states to 5868 states and 8252 transitions. [2019-09-08 18:42:05,379 INFO L78 Accepts]: Start accepts. Automaton has 5868 states and 8252 transitions. Word has length 402 [2019-09-08 18:42:05,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 18:42:05,380 INFO L475 AbstractCegarLoop]: Abstraction has 5868 states and 8252 transitions. [2019-09-08 18:42:05,381 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 18:42:05,381 INFO L276 IsEmpty]: Start isEmpty. Operand 5868 states and 8252 transitions. [2019-09-08 18:42:05,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2019-09-08 18:42:05,403 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 18:42:05,403 INFO L399 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, 1, 1] [2019-09-08 18:42:05,404 INFO L418 AbstractCegarLoop]: === Iteration 13 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 18:42:05,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 18:42:05,404 INFO L82 PathProgramCache]: Analyzing trace with hash 1835690353, now seen corresponding path program 1 times [2019-09-08 18:42:05,404 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 18:42:05,405 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 18:42:05,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 18:42:05,408 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 18:42:05,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 18:42:05,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 18:42:05,936 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 504 trivial. 0 not checked. [2019-09-08 18:42:05,936 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 18:42:05,936 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 18:42:05,937 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 18:42:05,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 18:42:05,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 18:42:05,938 INFO L87 Difference]: Start difference. First operand 5868 states and 8252 transitions. Second operand 3 states. [2019-09-08 18:42:06,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 18:42:06,095 INFO L93 Difference]: Finished difference Result 11679 states and 16447 transitions. [2019-09-08 18:42:06,095 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 18:42:06,095 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 429 [2019-09-08 18:42:06,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 18:42:06,119 INFO L225 Difference]: With dead ends: 11679 [2019-09-08 18:42:06,120 INFO L226 Difference]: Without dead ends: 5872 [2019-09-08 18:42:06,137 INFO L628 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 [2019-09-08 18:42:06,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5872 states. [2019-09-08 18:42:06,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5872 to 5872. [2019-09-08 18:42:06,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5872 states. [2019-09-08 18:42:06,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5872 states to 5872 states and 8256 transitions. [2019-09-08 18:42:06,334 INFO L78 Accepts]: Start accepts. Automaton has 5872 states and 8256 transitions. Word has length 429 [2019-09-08 18:42:06,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 18:42:06,335 INFO L475 AbstractCegarLoop]: Abstraction has 5872 states and 8256 transitions. [2019-09-08 18:42:06,335 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 18:42:06,335 INFO L276 IsEmpty]: Start isEmpty. Operand 5872 states and 8256 transitions. [2019-09-08 18:42:06,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2019-09-08 18:42:06,361 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 18:42:06,361 INFO L399 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, 1, 1] [2019-09-08 18:42:06,362 INFO L418 AbstractCegarLoop]: === Iteration 14 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 18:42:06,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 18:42:06,362 INFO L82 PathProgramCache]: Analyzing trace with hash 113687667, now seen corresponding path program 1 times [2019-09-08 18:42:06,362 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 18:42:06,362 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 18:42:06,364 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 18:42:06,365 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 18:42:06,365 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 18:42:06,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 18:42:06,911 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 504 trivial. 0 not checked. [2019-09-08 18:42:06,912 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 18:42:06,912 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 18:42:06,913 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 18:42:06,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 18:42:06,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 18:42:06,915 INFO L87 Difference]: Start difference. First operand 5872 states and 8256 transitions. Second operand 5 states. [2019-09-08 18:42:07,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 18:42:07,110 INFO L93 Difference]: Finished difference Result 11707 states and 16479 transitions. [2019-09-08 18:42:07,111 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 18:42:07,111 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 429 [2019-09-08 18:42:07,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 18:42:07,138 INFO L225 Difference]: With dead ends: 11707 [2019-09-08 18:42:07,139 INFO L226 Difference]: Without dead ends: 5896 [2019-09-08 18:42:07,159 INFO L628 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 [2019-09-08 18:42:07,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5896 states. [2019-09-08 18:42:07,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5896 to 5888. [2019-09-08 18:42:07,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5888 states. [2019-09-08 18:42:07,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5888 states to 5888 states and 8272 transitions. [2019-09-08 18:42:07,368 INFO L78 Accepts]: Start accepts. Automaton has 5888 states and 8272 transitions. Word has length 429 [2019-09-08 18:42:07,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 18:42:07,369 INFO L475 AbstractCegarLoop]: Abstraction has 5888 states and 8272 transitions. [2019-09-08 18:42:07,369 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 18:42:07,369 INFO L276 IsEmpty]: Start isEmpty. Operand 5888 states and 8272 transitions. [2019-09-08 18:42:07,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2019-09-08 18:42:07,388 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 18:42:07,388 INFO L399 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, 1, 1, 1] [2019-09-08 18:42:07,388 INFO L418 AbstractCegarLoop]: === Iteration 15 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 18:42:07,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 18:42:07,389 INFO L82 PathProgramCache]: Analyzing trace with hash -977382072, now seen corresponding path program 1 times [2019-09-08 18:42:07,389 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 18:42:07,389 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 18:42:07,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 18:42:07,393 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 18:42:07,393 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 18:42:07,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 18:42:08,738 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 504 trivial. 0 not checked. [2019-09-08 18:42:08,738 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 18:42:08,739 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-09-08 18:42:08,739 INFO L454 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-09-08 18:42:08,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-09-08 18:42:08,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2019-09-08 18:42:08,741 INFO L87 Difference]: Start difference. First operand 5888 states and 8272 transitions. Second operand 16 states. [2019-09-08 18:42:09,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 18:42:09,347 INFO L93 Difference]: Finished difference Result 11755 states and 16527 transitions. [2019-09-08 18:42:09,348 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-09-08 18:42:09,348 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 430 [2019-09-08 18:42:09,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 18:42:09,372 INFO L225 Difference]: With dead ends: 11755 [2019-09-08 18:42:09,372 INFO L226 Difference]: Without dead ends: 5928 [2019-09-08 18:42:09,388 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2019-09-08 18:42:09,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5928 states. [2019-09-08 18:42:09,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5928 to 5916. [2019-09-08 18:42:09,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5916 states. [2019-09-08 18:42:09,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5916 states to 5916 states and 8306 transitions. [2019-09-08 18:42:09,571 INFO L78 Accepts]: Start accepts. Automaton has 5916 states and 8306 transitions. Word has length 430 [2019-09-08 18:42:09,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 18:42:09,572 INFO L475 AbstractCegarLoop]: Abstraction has 5916 states and 8306 transitions. [2019-09-08 18:42:09,572 INFO L476 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-09-08 18:42:09,572 INFO L276 IsEmpty]: Start isEmpty. Operand 5916 states and 8306 transitions. [2019-09-08 18:42:09,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2019-09-08 18:42:09,591 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 18:42:09,593 INFO L399 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 18:42:09,593 INFO L418 AbstractCegarLoop]: === Iteration 16 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 18:42:09,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 18:42:09,594 INFO L82 PathProgramCache]: Analyzing trace with hash -1258932300, now seen corresponding path program 1 times [2019-09-08 18:42:09,594 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 18:42:09,594 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 18:42:09,597 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 18:42:09,597 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 18:42:09,597 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 18:42:13,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 18:42:13,372 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 470 trivial. 0 not checked. [2019-09-08 18:42:13,374 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 18:42:13,374 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-08 18:42:13,405 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 18:42:14,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 18:42:14,702 INFO L256 TraceCheckSpWp]: Trace formula consists of 5596 conjuncts, 12 conjunts are in the unsatisfiable core [2019-09-08 18:42:14,736 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 18:42:15,113 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 488 trivial. 0 not checked. [2019-09-08 18:42:15,141 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 18:42:15,141 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2019-09-08 18:42:15,142 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-08 18:42:15,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-08 18:42:15,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-09-08 18:42:15,143 INFO L87 Difference]: Start difference. First operand 5916 states and 8306 transitions. Second operand 8 states. [2019-09-08 18:42:17,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 18:42:17,991 INFO L93 Difference]: Finished difference Result 11830 states and 16632 transitions. [2019-09-08 18:42:17,992 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-08 18:42:17,992 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 447 [2019-09-08 18:42:17,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 18:42:18,026 INFO L225 Difference]: With dead ends: 11830 [2019-09-08 18:42:18,027 INFO L226 Difference]: Without dead ends: 5948 [2019-09-08 18:42:18,052 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 454 GetRequests, 446 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2019-09-08 18:42:18,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5948 states. [2019-09-08 18:42:18,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5948 to 5928. [2019-09-08 18:42:18,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5928 states. [2019-09-08 18:42:18,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5928 states to 5928 states and 8319 transitions. [2019-09-08 18:42:18,354 INFO L78 Accepts]: Start accepts. Automaton has 5928 states and 8319 transitions. Word has length 447 [2019-09-08 18:42:18,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 18:42:18,359 INFO L475 AbstractCegarLoop]: Abstraction has 5928 states and 8319 transitions. [2019-09-08 18:42:18,359 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-08 18:42:18,359 INFO L276 IsEmpty]: Start isEmpty. Operand 5928 states and 8319 transitions. [2019-09-08 18:42:18,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2019-09-08 18:42:18,378 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 18:42:18,379 INFO L399 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 18:42:18,379 INFO L418 AbstractCegarLoop]: === Iteration 17 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 18:42:18,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 18:42:18,379 INFO L82 PathProgramCache]: Analyzing trace with hash 1748400748, now seen corresponding path program 1 times [2019-09-08 18:42:18,380 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 18:42:18,380 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 18:42:18,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 18:42:18,384 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 18:42:18,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 18:42:18,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 18:42:19,589 INFO L134 CoverageAnalysis]: Checked inductivity of 569 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2019-09-08 18:42:19,590 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 18:42:19,590 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-09-08 18:42:19,590 INFO L454 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-09-08 18:42:19,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-09-08 18:42:19,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2019-09-08 18:42:19,591 INFO L87 Difference]: Start difference. First operand 5928 states and 8319 transitions. Second operand 16 states. [2019-09-08 18:42:20,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 18:42:20,185 INFO L93 Difference]: Finished difference Result 11827 states and 16612 transitions. [2019-09-08 18:42:20,185 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-09-08 18:42:20,185 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 457 [2019-09-08 18:42:20,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 18:42:20,209 INFO L225 Difference]: With dead ends: 11827 [2019-09-08 18:42:20,210 INFO L226 Difference]: Without dead ends: 5968 [2019-09-08 18:42:20,227 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2019-09-08 18:42:20,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5968 states. [2019-09-08 18:42:20,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5968 to 5928. [2019-09-08 18:42:20,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5928 states. [2019-09-08 18:42:20,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5928 states to 5928 states and 8319 transitions. [2019-09-08 18:42:20,451 INFO L78 Accepts]: Start accepts. Automaton has 5928 states and 8319 transitions. Word has length 457 [2019-09-08 18:42:20,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 18:42:20,452 INFO L475 AbstractCegarLoop]: Abstraction has 5928 states and 8319 transitions. [2019-09-08 18:42:20,453 INFO L476 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-09-08 18:42:20,453 INFO L276 IsEmpty]: Start isEmpty. Operand 5928 states and 8319 transitions. [2019-09-08 18:42:20,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2019-09-08 18:42:20,470 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 18:42:20,471 INFO L399 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 18:42:20,471 INFO L418 AbstractCegarLoop]: === Iteration 18 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 18:42:20,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 18:42:20,472 INFO L82 PathProgramCache]: Analyzing trace with hash -942468804, now seen corresponding path program 1 times [2019-09-08 18:42:20,472 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 18:42:20,472 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 18:42:20,474 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 18:42:20,475 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 18:42:20,475 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 18:42:31,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 18:42:31,567 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 8 proven. 40 refuted. 0 times theorem prover too weak. 522 trivial. 0 not checked. [2019-09-08 18:42:31,568 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 18:42:31,568 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-08 18:42:31,599 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 18:42:38,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 18:42:38,148 INFO L256 TraceCheckSpWp]: Trace formula consists of 5654 conjuncts, 30 conjunts are in the unsatisfiable core [2019-09-08 18:42:38,162 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 18:42:38,240 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-09-08 18:42:38,241 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-09-08 18:42:38,252 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-09-08 18:42:38,252 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-09-08 18:42:38,253 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:18, output treesize:14 [2019-09-08 18:42:38,274 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 18:42:38,296 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-09-08 18:42:38,389 INFO L341 Elim1Store]: treesize reduction 9, result has 88.8 percent of original size [2019-09-08 18:42:38,390 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 112 [2019-09-08 18:42:38,390 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-09-08 18:42:38,476 INFO L341 Elim1Store]: treesize reduction 57, result has 50.4 percent of original size [2019-09-08 18:42:38,476 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 53 treesize of output 83 [2019-09-08 18:42:38,477 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-09-08 18:42:38,513 INFO L567 ElimStorePlain]: treesize reduction 37, result has 46.4 percent of original size [2019-09-08 18:42:38,515 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-09-08 18:42:38,516 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:112, output treesize:32 [2019-09-08 18:42:40,411 WARN L188 SmtUtils]: Spent 913.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2019-09-08 18:42:40,423 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-09-08 18:42:40,424 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-09-08 18:42:40,425 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-09-08 18:42:40,427 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 36 [2019-09-08 18:42:40,428 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-09-08 18:42:40,444 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-09-08 18:42:40,445 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-09-08 18:42:40,446 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:40, output treesize:38 [2019-09-08 18:42:40,527 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-09-08 18:42:40,528 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-09-08 18:42:40,530 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-09-08 18:42:40,531 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-09-08 18:42:40,531 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 17 [2019-09-08 18:42:40,534 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-09-08 18:42:40,537 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-09-08 18:42:40,537 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-09-08 18:42:40,538 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:44, output treesize:3 [2019-09-08 18:42:40,667 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 562 trivial. 0 not checked. [2019-09-08 18:42:40,696 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 18:42:40,697 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [6] total 16 [2019-09-08 18:42:40,698 INFO L454 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-09-08 18:42:40,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-09-08 18:42:40,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=206, Unknown=1, NotChecked=0, Total=240 [2019-09-08 18:42:40,699 INFO L87 Difference]: Start difference. First operand 5928 states and 8319 transitions. Second operand 16 states. [2019-09-08 18:43:31,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 18:43:31,152 INFO L93 Difference]: Finished difference Result 13150 states and 18794 transitions. [2019-09-08 18:43:31,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-09-08 18:43:31,153 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 459 [2019-09-08 18:43:31,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 18:43:31,191 INFO L225 Difference]: With dead ends: 13150 [2019-09-08 18:43:31,191 INFO L226 Difference]: Without dead ends: 7258 [2019-09-08 18:43:31,206 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 480 GetRequests, 454 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=93, Invalid=661, Unknown=2, NotChecked=0, Total=756 [2019-09-08 18:43:31,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7258 states. [2019-09-08 18:43:31,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7258 to 6254. [2019-09-08 18:43:31,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6254 states. [2019-09-08 18:43:31,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6254 states to 6254 states and 8868 transitions. [2019-09-08 18:43:31,431 INFO L78 Accepts]: Start accepts. Automaton has 6254 states and 8868 transitions. Word has length 459 [2019-09-08 18:43:31,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 18:43:31,431 INFO L475 AbstractCegarLoop]: Abstraction has 6254 states and 8868 transitions. [2019-09-08 18:43:31,431 INFO L476 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-09-08 18:43:31,431 INFO L276 IsEmpty]: Start isEmpty. Operand 6254 states and 8868 transitions. [2019-09-08 18:43:31,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2019-09-08 18:43:31,447 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 18:43:31,447 INFO L399 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 18:43:31,447 INFO L418 AbstractCegarLoop]: === Iteration 19 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 18:43:31,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 18:43:31,448 INFO L82 PathProgramCache]: Analyzing trace with hash -142284959, now seen corresponding path program 1 times [2019-09-08 18:43:31,448 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 18:43:31,448 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 18:43:31,452 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 18:43:31,452 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 18:43:31,452 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 18:43:36,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 18:43:36,740 INFO L134 CoverageAnalysis]: Checked inductivity of 583 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 522 trivial. 0 not checked. [2019-09-08 18:43:36,741 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 18:43:36,741 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 18:43:36,758 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 18:43:45,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 18:43:45,447 INFO L256 TraceCheckSpWp]: Trace formula consists of 5661 conjuncts, 69 conjunts are in the unsatisfiable core [2019-09-08 18:43:45,462 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 18:43:45,544 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-09-08 18:43:45,545 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-09-08 18:43:45,547 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-09-08 18:43:45,548 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-09-08 18:43:45,548 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2019-09-08 18:43:45,620 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2019-09-08 18:43:45,620 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-09-08 18:43:45,627 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-09-08 18:43:45,628 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-09-08 18:43:45,628 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:3 [2019-09-08 18:43:46,592 WARN L860 $PredicateComparison]: unable to prove that (exists ((|#Ultimate.C_memset_#ptr.base| Int)) (= |c_#memory_int| (store |c_old(#memory_int)| |#Ultimate.C_memset_#ptr.base| (store (select |c_old(#memory_int)| |#Ultimate.C_memset_#ptr.base|) |c_#Ultimate.C_memset_#ptr.offset| |c_#Ultimate.C_memset_#value|)))) is different from true [2019-09-08 18:43:48,600 WARN L860 $PredicateComparison]: unable to prove that (exists ((|#Ultimate.C_memset_#ptr.base| Int)) (= (store |c_old(#memory_int)| |#Ultimate.C_memset_#ptr.base| (store (select |c_old(#memory_int)| |#Ultimate.C_memset_#ptr.base|) |c_ldv_memset_#in~s.offset| |c_ldv_memset_#in~c|)) |c_#memory_int|)) is different from true [2019-09-08 18:43:48,619 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-09-08 18:43:48,619 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 34 [2019-09-08 18:43:48,620 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-09-08 18:43:48,645 INFO L567 ElimStorePlain]: treesize reduction 16, result has 56.8 percent of original size [2019-09-08 18:43:48,646 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-09-08 18:43:48,646 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:21 [2019-09-08 18:43:48,827 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2019-09-08 18:43:48,828 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-09-08 18:43:48,833 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-09-08 18:43:48,834 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-09-08 18:43:48,834 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:3 [2019-09-08 18:43:49,632 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_#Ultimate.meminit_#ptr.base_AFTER_CALL_27| Int)) (and (= |c_#memory_int| (store |c_old(#memory_int)| |v_#Ultimate.meminit_#ptr.base_AFTER_CALL_27| ((as const (Array Int Int)) 0))) (<= (+ |c_#StackHeapBarrier| 1) |v_#Ultimate.meminit_#ptr.base_AFTER_CALL_27|))) is different from true [2019-09-08 18:43:49,655 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-09-08 18:43:49,657 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 17 [2019-09-08 18:43:49,657 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-09-08 18:43:49,684 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-09-08 18:43:49,685 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-09-08 18:43:49,685 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:23, output treesize:22 [2019-09-08 18:43:49,737 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-09-08 18:43:49,738 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 15 [2019-09-08 18:43:49,742 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-09-08 18:43:49,742 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-09-08 18:43:49,744 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-09-08 18:43:49,744 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-09-08 18:43:49,748 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-09-08 18:43:49,748 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-09-08 18:43:49,748 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:26, output treesize:3 [2019-09-08 18:43:50,116 INFO L134 CoverageAnalysis]: Checked inductivity of 583 backedges. 185 proven. 6 refuted. 0 times theorem prover too weak. 384 trivial. 8 not checked. [2019-09-08 18:43:50,148 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 18:43:50,149 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 25] total 29 [2019-09-08 18:43:50,150 INFO L454 AbstractCegarLoop]: Interpolant automaton has 29 states [2019-09-08 18:43:50,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2019-09-08 18:43:50,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=594, Unknown=3, NotChecked=150, Total=812 [2019-09-08 18:43:50,151 INFO L87 Difference]: Start difference. First operand 6254 states and 8868 transitions. Second operand 29 states. [2019-09-08 18:43:54,880 WARN L188 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 17 [2019-09-08 18:43:56,969 WARN L188 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 19 [2019-09-08 18:43:59,051 WARN L188 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 29 [2019-09-08 18:45:02,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 18:45:02,634 INFO L93 Difference]: Finished difference Result 13203 states and 18866 transitions. [2019-09-08 18:45:02,634 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2019-09-08 18:45:02,635 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 460 [2019-09-08 18:45:02,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 18:45:02,669 INFO L225 Difference]: With dead ends: 13203 [2019-09-08 18:45:02,669 INFO L226 Difference]: Without dead ends: 6980 [2019-09-08 18:45:02,684 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 495 GetRequests, 443 SyntacticMatches, 3 SemanticMatches, 49 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 373 ImplicationChecksByTransitivity, 12.6s TimeCoverageRelationStatistics Valid=190, Invalid=2074, Unknown=4, NotChecked=282, Total=2550 [2019-09-08 18:45:02,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6980 states. [2019-09-08 18:45:02,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6980 to 6545. [2019-09-08 18:45:02,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6545 states. [2019-09-08 18:45:02,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6545 states to 6545 states and 9356 transitions. [2019-09-08 18:45:02,913 INFO L78 Accepts]: Start accepts. Automaton has 6545 states and 9356 transitions. Word has length 460 [2019-09-08 18:45:02,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 18:45:02,913 INFO L475 AbstractCegarLoop]: Abstraction has 6545 states and 9356 transitions. [2019-09-08 18:45:02,913 INFO L476 AbstractCegarLoop]: Interpolant automaton has 29 states. [2019-09-08 18:45:02,913 INFO L276 IsEmpty]: Start isEmpty. Operand 6545 states and 9356 transitions. [2019-09-08 18:45:02,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 467 [2019-09-08 18:45:02,925 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 18:45:02,925 INFO L399 BasicCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 18:45:02,925 INFO L418 AbstractCegarLoop]: === Iteration 20 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 18:45:02,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 18:45:02,926 INFO L82 PathProgramCache]: Analyzing trace with hash 531352141, now seen corresponding path program 2 times [2019-09-08 18:45:02,926 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 18:45:02,926 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 18:45:02,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 18:45:02,929 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 18:45:02,929 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 18:45:07,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 18:45:08,301 INFO L134 CoverageAnalysis]: Checked inductivity of 682 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 592 trivial. 0 not checked. [2019-09-08 18:45:08,302 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 18:45:08,302 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 18:45:08,431 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-09-08 18:45:33,717 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-09-08 18:45:33,718 INFO L250 tOrderPrioritization]: Conjunction of SSA is unknown [2019-09-08 18:45:34,050 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-09-08 18:45:34,050 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2019-09-08 18:45:34,051 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-08 18:45:34,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-08 18:45:34,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-09-08 18:45:34,052 INFO L87 Difference]: Start difference. First operand 6545 states and 9356 transitions. Second operand 8 states. [2019-09-08 18:45:34,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 18:45:34,399 INFO L93 Difference]: Finished difference Result 13098 states and 18731 transitions. [2019-09-08 18:45:34,399 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-08 18:45:34,399 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 466 [2019-09-08 18:45:34,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 18:45:34,434 INFO L225 Difference]: With dead ends: 13098 [2019-09-08 18:45:34,434 INFO L226 Difference]: Without dead ends: 6584 [2019-09-08 18:45:34,450 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2019-09-08 18:45:34,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6584 states. [2019-09-08 18:45:34,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6584 to 6546. [2019-09-08 18:45:34,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6546 states. [2019-09-08 18:45:34,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6546 states to 6546 states and 9358 transitions. [2019-09-08 18:45:34,674 INFO L78 Accepts]: Start accepts. Automaton has 6546 states and 9358 transitions. Word has length 466 [2019-09-08 18:45:34,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 18:45:34,675 INFO L475 AbstractCegarLoop]: Abstraction has 6546 states and 9358 transitions. [2019-09-08 18:45:34,675 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-08 18:45:34,675 INFO L276 IsEmpty]: Start isEmpty. Operand 6546 states and 9358 transitions. [2019-09-08 18:45:34,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2019-09-08 18:45:34,686 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 18:45:34,688 INFO L399 BasicCegarLoop]: trace histogram [19, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 18:45:34,688 INFO L418 AbstractCegarLoop]: === Iteration 21 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 18:45:34,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 18:45:34,689 INFO L82 PathProgramCache]: Analyzing trace with hash -2014148191, now seen corresponding path program 3 times [2019-09-08 18:45:34,689 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 18:45:34,689 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 18:45:34,692 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 18:45:34,692 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 18:45:34,692 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 18:45:40,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 18:45:40,783 INFO L134 CoverageAnalysis]: Checked inductivity of 817 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 687 trivial. 0 not checked. [2019-09-08 18:45:40,783 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 18:45:40,783 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 18:45:40,801 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-09-08 18:46:40,137 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2019-09-08 18:46:40,137 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 18:46:40,456 INFO L256 TraceCheckSpWp]: Trace formula consists of 5248 conjuncts, 77 conjunts are in the unsatisfiable core [2019-09-08 18:46:40,471 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 18:46:40,486 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 28 [2019-09-08 18:46:40,486 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-09-08 18:46:40,509 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-09-08 18:46:40,509 INFO L496 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-09-08 18:46:40,510 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:30, output treesize:11 [2019-09-08 18:46:40,590 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-09-08 18:46:40,590 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-09-08 18:46:40,599 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-09-08 18:46:40,600 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-09-08 18:46:40,600 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:11 [2019-09-08 18:46:40,661 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-09-08 18:46:40,662 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 40 [2019-09-08 18:46:40,663 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-09-08 18:46:40,705 INFO L567 ElimStorePlain]: treesize reduction 20, result has 53.5 percent of original size [2019-09-08 18:46:40,706 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-09-08 18:46:40,707 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:27, output treesize:23 [2019-09-08 18:46:40,821 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-09-08 18:46:40,821 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 88 [2019-09-08 18:46:40,822 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-09-08 18:46:40,877 INFO L567 ElimStorePlain]: treesize reduction 46, result has 44.6 percent of original size [2019-09-08 18:46:40,878 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-09-08 18:46:40,879 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:41, output treesize:37 [2019-09-08 18:46:44,946 WARN L188 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 27 [2019-09-08 18:46:45,214 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-09-08 18:46:45,215 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-09-08 18:46:45,223 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-09-08 18:46:45,223 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 18 [2019-09-08 18:46:45,224 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-09-08 18:46:45,232 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-09-08 18:46:45,233 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-09-08 18:46:45,233 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:42, output treesize:3 [2019-09-08 18:46:46,027 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_#Ultimate.C_memset_#t~loopctr1072_10| Int)) (= |c_#memory_int| (store |c_old(#memory_int)| |c_#Ultimate.C_memset_#ptr.base| (store (select |c_old(#memory_int)| |c_#Ultimate.C_memset_#ptr.base|) (+ |v_#Ultimate.C_memset_#t~loopctr1072_10| |c_#Ultimate.C_memset_#ptr.offset|) |c_#Ultimate.C_memset_#value|)))) is different from true [2019-09-08 18:46:47,020 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_#Ultimate.C_memset_#t~loopctr1072_10| Int) (|v_#Ultimate.C_memset_#t~loopctr1072_11| Int)) (= (store |c_old(#memory_int)| |c_#Ultimate.C_memset_#ptr.base| (store (store (select |c_old(#memory_int)| |c_#Ultimate.C_memset_#ptr.base|) (+ |v_#Ultimate.C_memset_#t~loopctr1072_10| |c_#Ultimate.C_memset_#ptr.offset|) |c_#Ultimate.C_memset_#value|) (+ |v_#Ultimate.C_memset_#t~loopctr1072_11| |c_#Ultimate.C_memset_#ptr.offset|) |c_#Ultimate.C_memset_#value|)) |c_#memory_int|)) is different from true [2019-09-08 18:46:48,039 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_#Ultimate.C_memset_#t~loopctr1072_10| Int) (|v_#Ultimate.C_memset_#t~loopctr1072_12| Int) (|v_#Ultimate.C_memset_#t~loopctr1072_11| Int) (|#Ultimate.C_memset_#ptr.offset| Int) (|#Ultimate.C_memset_#value| Int)) (= (store |c_old(#memory_int)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (select |c_old(#memory_int)| |c_#Ultimate.C_memset_#ptr.base|) (+ |v_#Ultimate.C_memset_#t~loopctr1072_10| |#Ultimate.C_memset_#ptr.offset|) |#Ultimate.C_memset_#value|) (+ |v_#Ultimate.C_memset_#t~loopctr1072_11| |#Ultimate.C_memset_#ptr.offset|) |#Ultimate.C_memset_#value|) (+ |v_#Ultimate.C_memset_#t~loopctr1072_12| |#Ultimate.C_memset_#ptr.offset|) |#Ultimate.C_memset_#value|)) |c_#memory_int|)) is different from true [2019-09-08 18:46:49,239 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_#Ultimate.C_memset_#t~loopctr1072_10| Int) (|v_#Ultimate.C_memset_#t~loopctr1072_12| Int) (|v_#Ultimate.C_memset_#t~loopctr1072_11| Int) (|#Ultimate.C_memset_#ptr.offset| Int) (|#Ultimate.C_memset_#value| Int)) (= |c_#memory_int| (store |c_old(#memory_int)| |c_ldv_memset_#in~s.base| (store (store (store (select |c_old(#memory_int)| |c_ldv_memset_#in~s.base|) (+ |v_#Ultimate.C_memset_#t~loopctr1072_10| |#Ultimate.C_memset_#ptr.offset|) |#Ultimate.C_memset_#value|) (+ |v_#Ultimate.C_memset_#t~loopctr1072_11| |#Ultimate.C_memset_#ptr.offset|) |#Ultimate.C_memset_#value|) (+ |v_#Ultimate.C_memset_#t~loopctr1072_12| |#Ultimate.C_memset_#ptr.offset|) |#Ultimate.C_memset_#value|)))) is different from true [2019-09-08 18:46:49,262 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-09-08 18:46:49,263 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-09-08 18:46:49,311 INFO L341 Elim1Store]: treesize reduction 84, result has 27.0 percent of original size [2019-09-08 18:46:49,312 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 74 [2019-09-08 18:46:49,313 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-09-08 18:46:49,376 INFO L567 ElimStorePlain]: treesize reduction 22, result has 77.8 percent of original size [2019-09-08 18:46:49,378 INFO L496 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 1 dim-2 vars, End of recursive call: 7 dim-0 vars, and 1 xjuncts. [2019-09-08 18:46:49,379 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 9 variables, input treesize:73, output treesize:80 [2019-09-08 18:46:51,455 WARN L188 SmtUtils]: Spent 987.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2019-09-08 18:46:59,736 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 24 [2019-09-08 18:47:00,623 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-09-08 18:47:00,625 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-09-08 18:47:00,651 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-09-08 18:47:00,652 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 60 treesize of output 60 [2019-09-08 18:47:00,652 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-09-08 18:47:00,669 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-09-08 18:47:00,670 INFO L496 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-09-08 18:47:00,670 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 9 variables, input treesize:76, output treesize:3 [2019-09-08 18:47:01,422 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_#Ultimate.meminit_#ptr.base_AFTER_CALL_36| Int)) (and (<= (+ |c_#StackHeapBarrier| 1) |v_#Ultimate.meminit_#ptr.base_AFTER_CALL_36|) (= |c_#memory_int| (store |c_old(#memory_int)| |v_#Ultimate.meminit_#ptr.base_AFTER_CALL_36| ((as const (Array Int Int)) 0))))) is different from true [2019-09-08 18:47:01,465 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-09-08 18:47:01,480 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-09-08 18:47:01,480 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 77 [2019-09-08 18:47:01,481 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 18:47:01,688 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 18:47:01,690 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: This case should habe been handled by DER at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.DerPreprocessor.classify(DerPreprocessor.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.DerPreprocessor.classify(DerPreprocessor.java:192) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.DerPreprocessor.(DerPreprocessor.java:95) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:291) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:253) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:553) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:466) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:256) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:553) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:466) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:232) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:453) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:371) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-09-08 18:47:01,696 INFO L168 Benchmark]: Toolchain (without parser) took 325710.27 ms. Allocated memory was 131.6 MB in the beginning and 2.7 GB in the end (delta: 2.6 GB). Free memory was 77.2 MB in the beginning and 2.4 GB in the end (delta: -2.3 GB). Peak memory consumption was 238.0 MB. Max. memory is 7.1 GB. [2019-09-08 18:47:01,697 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 131.6 MB. Free memory was 105.9 MB in the beginning and 105.7 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-09-08 18:47:01,698 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3054.58 ms. Allocated memory was 131.6 MB in the beginning and 277.3 MB in the end (delta: 145.8 MB). Free memory was 77.0 MB in the beginning and 144.7 MB in the end (delta: -67.7 MB). Peak memory consumption was 121.2 MB. Max. memory is 7.1 GB. [2019-09-08 18:47:01,698 INFO L168 Benchmark]: Boogie Preprocessor took 374.06 ms. Allocated memory is still 277.3 MB. Free memory was 144.7 MB in the beginning and 111.8 MB in the end (delta: 32.8 MB). Peak memory consumption was 32.8 MB. Max. memory is 7.1 GB. [2019-09-08 18:47:01,699 INFO L168 Benchmark]: RCFGBuilder took 9699.20 ms. Allocated memory was 277.3 MB in the beginning and 560.5 MB in the end (delta: 283.1 MB). Free memory was 111.8 MB in the beginning and 55.1 MB in the end (delta: 56.8 MB). Peak memory consumption was 371.4 MB. Max. memory is 7.1 GB. [2019-09-08 18:47:01,699 INFO L168 Benchmark]: TraceAbstraction took 312578.04 ms. Allocated memory was 560.5 MB in the beginning and 2.7 GB in the end (delta: 2.1 GB). Free memory was 55.1 MB in the beginning and 2.4 GB in the end (delta: -2.4 GB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-08 18:47:01,702 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 131.6 MB. Free memory was 105.9 MB in the beginning and 105.7 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3054.58 ms. Allocated memory was 131.6 MB in the beginning and 277.3 MB in the end (delta: 145.8 MB). Free memory was 77.0 MB in the beginning and 144.7 MB in the end (delta: -67.7 MB). Peak memory consumption was 121.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 374.06 ms. Allocated memory is still 277.3 MB. Free memory was 144.7 MB in the beginning and 111.8 MB in the end (delta: 32.8 MB). Peak memory consumption was 32.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9699.20 ms. Allocated memory was 277.3 MB in the beginning and 560.5 MB in the end (delta: 283.1 MB). Free memory was 111.8 MB in the beginning and 55.1 MB in the end (delta: 56.8 MB). Peak memory consumption was 371.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 312578.04 ms. Allocated memory was 560.5 MB in the beginning and 2.7 GB in the end (delta: 2.1 GB). Free memory was 55.1 MB in the beginning and 2.4 GB in the end (delta: -2.4 GB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: This case should habe been handled by DER de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: This case should habe been handled by DER: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.DerPreprocessor.classify(DerPreprocessor.java:212) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...