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 --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--megaraid--megaraid_mm.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 22:52:07,560 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 22:52:07,562 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 22:52:07,575 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 22:52:07,576 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 22:52:07,577 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 22:52:07,578 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 22:52:07,580 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 22:52:07,582 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 22:52:07,583 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 22:52:07,584 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 22:52:07,585 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 22:52:07,585 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 22:52:07,586 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 22:52:07,587 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 22:52:07,588 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 22:52:07,589 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 22:52:07,590 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 22:52:07,592 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 22:52:07,594 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 22:52:07,595 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 22:52:07,597 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 22:52:07,598 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 22:52:07,598 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 22:52:07,601 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 22:52:07,601 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 22:52:07,601 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 22:52:07,602 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 22:52:07,603 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 22:52:07,603 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 22:52:07,604 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 22:52:07,604 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 22:52:07,605 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 22:52:07,606 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 22:52:07,607 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 22:52:07,607 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 22:52:07,608 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 22:52:07,608 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 22:52:07,609 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 22:52:07,609 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 22:52:07,610 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 22:52:07,611 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 [2019-10-13 22:52:07,626 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 22:52:07,627 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 22:52:07,629 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 22:52:07,630 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 22:52:07,630 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 22:52:07,630 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 22:52:07,631 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 22:52:07,631 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 22:52:07,631 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 22:52:07,631 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 22:52:07,631 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 22:52:07,632 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 22:52:07,632 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 22:52:07,632 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 22:52:07,633 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 22:52:07,633 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 22:52:07,634 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 22:52:07,634 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 22:52:07,634 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 22:52:07,634 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 22:52:07,634 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 22:52:07,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 22:52:07,635 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 22:52:07,635 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 22:52:07,636 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 22:52:07,636 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 22:52:07,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 22:52:07,636 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 22:52:07,636 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-13 22:52:07,931 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 22:52:07,950 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 22:52:07,954 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 22:52:07,955 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 22:52:07,956 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 22:52:07,956 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--megaraid--megaraid_mm.ko-entry_point.cil.out.i [2019-10-13 22:52:08,023 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5c81763b/c763d257c6bf49a69423cb808c1ecce8/FLAG5f11cd895 [2019-10-13 22:52:08,784 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 22:52:08,784 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--megaraid--megaraid_mm.ko-entry_point.cil.out.i [2019-10-13 22:52:08,833 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5c81763b/c763d257c6bf49a69423cb808c1ecce8/FLAG5f11cd895 [2019-10-13 22:52:08,874 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5c81763b/c763d257c6bf49a69423cb808c1ecce8 [2019-10-13 22:52:08,888 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 22:52:08,889 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 22:52:08,892 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 22:52:08,893 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 22:52:08,896 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 22:52:08,897 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:52:08" (1/1) ... [2019-10-13 22:52:08,900 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e62f75e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:52:08, skipping insertion in model container [2019-10-13 22:52:08,901 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:52:08" (1/1) ... [2019-10-13 22:52:08,910 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 22:52:09,030 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 22:52:10,550 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 22:52:10,601 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 22:52:10,920 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 22:52:11,130 INFO L192 MainTranslator]: Completed translation [2019-10-13 22:52:11,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:52:11 WrapperNode [2019-10-13 22:52:11,131 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 22:52:11,132 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 22:52:11,132 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 22:52:11,134 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 22:52:11,156 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:52:11" (1/1) ... [2019-10-13 22:52:11,205 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:52:11" (1/1) ... [2019-10-13 22:52:11,282 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:52:11" (1/1) ... [2019-10-13 22:52:11,283 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:52:11" (1/1) ... [2019-10-13 22:52:11,387 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:52:11" (1/1) ... [2019-10-13 22:52:11,406 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:52:11" (1/1) ... [2019-10-13 22:52:11,427 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:52:11" (1/1) ... [2019-10-13 22:52:11,452 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 22:52:11,452 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 22:52:11,453 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 22:52:11,453 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 22:52:11,457 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:52:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 22:52:11,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 22:52:11,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 22:52:11,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~X~~uint32_t~0~TO~int [2019-10-13 22:52:11,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2019-10-13 22:52:11,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-13 22:52:11,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-13 22:52:11,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-10-13 22:52:11,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-10-13 22:52:11,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-13 22:52:11,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-13 22:52:11,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-13 22:52:11,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-13 22:52:11,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-13 22:52:11,519 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2019-10-13 22:52:11,519 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2019-10-13 22:52:11,519 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2019-10-13 22:52:11,519 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2019-10-13 22:52:11,519 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2019-10-13 22:52:11,519 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-10-13 22:52:11,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_12 [2019-10-13 22:52:11,520 INFO L138 BoogieDeclarations]: Found implementation of procedure sema_init [2019-10-13 22:52:11,520 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2019-10-13 22:52:11,521 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-10-13 22:52:11,521 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_open [2019-10-13 22:52:11,521 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_ioctl [2019-10-13 22:52:11,521 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_unlocked_ioctl [2019-10-13 22:52:11,521 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_get_adapter [2019-10-13 22:52:11,521 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_drvrcmd [2019-10-13 22:52:11,522 INFO L138 BoogieDeclarations]: Found implementation of procedure mimd_to_kioc [2019-10-13 22:52:11,522 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_attach_buf [2019-10-13 22:52:11,522 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_alloc_kioc [2019-10-13 22:52:11,522 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_dealloc_kioc [2019-10-13 22:52:11,522 INFO L138 BoogieDeclarations]: Found implementation of procedure lld_ioctl [2019-10-13 22:52:11,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ioctl_done [2019-10-13 22:52:11,523 INFO L138 BoogieDeclarations]: Found implementation of procedure lld_timedout [2019-10-13 22:52:11,523 INFO L138 BoogieDeclarations]: Found implementation of procedure kioc_to_mimd [2019-10-13 22:52:11,523 INFO L138 BoogieDeclarations]: Found implementation of procedure hinfo_to_cinfo [2019-10-13 22:52:11,523 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_register_adp [2019-10-13 22:52:11,523 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_adapter_app_handle [2019-10-13 22:52:11,524 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_setup_dma_pools [2019-10-13 22:52:11,524 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_unregister_adp [2019-10-13 22:52:11,524 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_free_adp_resources [2019-10-13 22:52:11,524 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_teardown_dma_pools [2019-10-13 22:52:11,524 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_init [2019-10-13 22:52:11,524 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_compat_ioctl [2019-10-13 22:52:11,525 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_exit [2019-10-13 22:52:11,525 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2019-10-13 22:52:11,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_2 [2019-10-13 22:52:11,525 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2019-10-13 22:52:11,525 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_timer_1 [2019-10-13 22:52:11,526 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2019-10-13 22:52:11,526 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 22:52:11,526 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-10-13 22:52:11,526 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-13 22:52:11,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kmem_cache_alloc_20 [2019-10-13 22:52:11,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dma_pool_alloc_24 [2019-10-13 22:52:11,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync_25 [2019-10-13 22:52:11,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dma_pool_alloc_26 [2019-10-13 22:52:11,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dma_pool_alloc_27 [2019-10-13 22:52:11,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_misc_register_28 [2019-10-13 22:52:11,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_misc_deregister_29 [2019-10-13 22:52:11,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-13 22:52:11,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-13 22:52:11,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-13 22:52:11,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-13 22:52:11,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-13 22:52:11,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2019-10-13 22:52:11,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2019-10-13 22:52:11,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2019-10-13 22:52:11,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2019-10-13 22:52:11,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2019-10-13 22:52:11,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2019-10-13 22:52:11,529 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user_overflow [2019-10-13 22:52:11,530 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user_overflow [2019-10-13 22:52:11,530 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-10-13 22:52:11,530 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2019-10-13 22:52:11,530 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2019-10-13 22:52:11,530 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2019-10-13 22:52:11,530 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2019-10-13 22:52:11,531 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-10-13 22:52:11,531 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2019-10-13 22:52:11,531 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2019-10-13 22:52:11,531 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-10-13 22:52:11,531 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-10-13 22:52:11,531 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2019-10-13 22:52:11,532 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2019-10-13 22:52:11,532 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2019-10-13 22:52:11,532 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_create [2019-10-13 22:52:11,532 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_destroy [2019-10-13 22:52:11,532 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_free [2019-10-13 22:52:11,532 INFO L138 BoogieDeclarations]: Found implementation of procedure down [2019-10-13 22:52:11,533 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2019-10-13 22:52:11,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-13 22:52:11,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-13 22:52:11,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_2 [2019-10-13 22:52:11,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2019-10-13 22:52:11,533 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2019-10-13 22:52:11,534 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2019-10-13 22:52:11,534 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_register [2019-10-13 22:52:11,534 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2019-10-13 22:52:11,534 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-13 22:52:11,534 INFO L138 BoogieDeclarations]: Found implementation of procedure noop_llseek [2019-10-13 22:52:11,534 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2019-10-13 22:52:11,534 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-13 22:52:11,535 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2019-10-13 22:52:11,535 INFO L138 BoogieDeclarations]: Found implementation of procedure up [2019-10-13 22:52:11,535 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-13 22:52:11,535 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-13 22:52:11,535 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-13 22:52:11,536 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-13 22:52:11,536 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-13 22:52:11,536 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 22:52:11,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-13 22:52:11,536 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-13 22:52:11,536 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2019-10-13 22:52:11,536 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2019-10-13 22:52:11,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2019-10-13 22:52:11,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2019-10-13 22:52:11,537 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 22:52:11,537 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 22:52:11,537 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-13 22:52:11,537 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 22:52:11,538 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-13 22:52:11,538 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-13 22:52:11,538 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 22:52:11,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-13 22:52:11,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 22:52:11,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-13 22:52:11,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-13 22:52:11,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-10-13 22:52:11,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-10-13 22:52:11,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-13 22:52:11,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-13 22:52:11,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-13 22:52:11,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-13 22:52:11,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-13 22:52:11,540 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2019-10-13 22:52:11,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 22:52:11,540 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2019-10-13 22:52:11,541 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2019-10-13 22:52:11,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 22:52:11,541 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2019-10-13 22:52:11,541 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2019-10-13 22:52:11,541 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2019-10-13 22:52:11,541 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2019-10-13 22:52:11,542 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-13 22:52:11,542 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2019-10-13 22:52:11,542 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2019-10-13 22:52:11,542 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-10-13 22:52:11,542 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-10-13 22:52:11,542 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-10-13 22:52:11,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_12 [2019-10-13 22:52:11,543 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-10-13 22:52:11,543 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-10-13 22:52:11,543 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2019-10-13 22:52:11,543 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2019-10-13 22:52:11,543 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2019-10-13 22:52:11,543 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2019-10-13 22:52:11,544 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-13 22:52:11,544 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2019-10-13 22:52:11,544 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2019-10-13 22:52:11,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync_25 [2019-10-13 22:52:11,544 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2019-10-13 22:52:11,544 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2019-10-13 22:52:11,544 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-13 22:52:11,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kmem_cache_alloc_20 [2019-10-13 22:52:11,545 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-13 22:52:11,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2019-10-13 22:52:11,545 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2019-10-13 22:52:11,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_2 [2019-10-13 22:52:11,545 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2019-10-13 22:52:11,545 INFO L130 BoogieDeclarations]: Found specification of procedure choose_timer_1 [2019-10-13 22:52:11,546 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2019-10-13 22:52:11,546 INFO L130 BoogieDeclarations]: Found specification of procedure sema_init [2019-10-13 22:52:11,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 22:52:11,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 22:52:11,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 22:52:11,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 22:52:11,546 INFO L130 BoogieDeclarations]: Found specification of procedure down [2019-10-13 22:52:11,547 INFO L130 BoogieDeclarations]: Found specification of procedure up [2019-10-13 22:52:11,547 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2019-10-13 22:52:11,547 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2019-10-13 22:52:11,547 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-10-13 22:52:11,547 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user_overflow [2019-10-13 22:52:11,547 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user_overflow [2019-10-13 22:52:11,548 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2019-10-13 22:52:11,548 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-10-13 22:52:11,548 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_create [2019-10-13 22:52:11,548 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_destroy [2019-10-13 22:52:11,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dma_pool_alloc_24 [2019-10-13 22:52:11,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dma_pool_alloc_26 [2019-10-13 22:52:11,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dma_pool_alloc_27 [2019-10-13 22:52:11,549 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_free [2019-10-13 22:52:11,549 INFO L130 BoogieDeclarations]: Found specification of procedure misc_register [2019-10-13 22:52:11,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_misc_register_28 [2019-10-13 22:52:11,549 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2019-10-13 22:52:11,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_misc_deregister_29 [2019-10-13 22:52:11,549 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_register_adp [2019-10-13 22:52:11,549 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_unregister_adp [2019-10-13 22:52:11,550 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_adapter_app_handle [2019-10-13 22:52:11,550 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_open [2019-10-13 22:52:11,550 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_unlocked_ioctl [2019-10-13 22:52:11,550 INFO L130 BoogieDeclarations]: Found specification of procedure mimd_to_kioc [2019-10-13 22:52:11,550 INFO L130 BoogieDeclarations]: Found specification of procedure kioc_to_mimd [2019-10-13 22:52:11,550 INFO L130 BoogieDeclarations]: Found specification of procedure handle_drvrcmd [2019-10-13 22:52:11,551 INFO L130 BoogieDeclarations]: Found specification of procedure lld_ioctl [2019-10-13 22:52:11,551 INFO L130 BoogieDeclarations]: Found specification of procedure ioctl_done [2019-10-13 22:52:11,551 INFO L130 BoogieDeclarations]: Found specification of procedure lld_timedout [2019-10-13 22:52:11,551 INFO L130 BoogieDeclarations]: Found specification of procedure hinfo_to_cinfo [2019-10-13 22:52:11,551 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_get_adapter [2019-10-13 22:52:11,551 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_alloc_kioc [2019-10-13 22:52:11,552 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_dealloc_kioc [2019-10-13 22:52:11,552 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_attach_buf [2019-10-13 22:52:11,552 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_setup_dma_pools [2019-10-13 22:52:11,552 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_free_adp_resources [2019-10-13 22:52:11,552 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_teardown_dma_pools [2019-10-13 22:52:11,552 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_compat_ioctl [2019-10-13 22:52:11,552 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_ioctl [2019-10-13 22:52:11,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-13 22:52:11,553 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~X~~uint32_t~0~TO~int [2019-10-13 22:52:11,553 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_init [2019-10-13 22:52:11,553 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_exit [2019-10-13 22:52:11,553 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-13 22:52:11,553 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_2 [2019-10-13 22:52:11,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-13 22:52:11,554 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2019-10-13 22:52:11,554 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 22:52:11,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-13 22:52:11,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-13 22:52:11,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-13 22:52:11,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-13 22:52:11,555 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-13 22:52:11,555 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2019-10-13 22:52:11,555 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2019-10-13 22:52:11,555 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2019-10-13 22:52:11,555 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2019-10-13 22:52:11,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-13 22:52:11,555 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-13 22:52:11,556 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-10-13 22:52:11,556 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 22:52:11,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 22:52:11,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 22:52:11,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 22:52:11,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 22:52:11,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-13 22:52:11,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-13 22:52:11,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-13 22:52:11,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-13 22:52:12,316 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-13 22:52:28,342 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 22:52:28,343 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-13 22:52:28,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:52:28 BoogieIcfgContainer [2019-10-13 22:52:28,345 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 22:52:28,347 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 22:52:28,347 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 22:52:28,350 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 22:52:28,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:52:08" (1/3) ... [2019-10-13 22:52:28,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eb5c7bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:52:28, skipping insertion in model container [2019-10-13 22:52:28,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:52:11" (2/3) ... [2019-10-13 22:52:28,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eb5c7bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:52:28, skipping insertion in model container [2019-10-13 22:52:28,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:52:28" (3/3) ... [2019-10-13 22:52:28,354 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--megaraid--megaraid_mm.ko-entry_point.cil.out.i [2019-10-13 22:52:28,364 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 22:52:28,373 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 22:52:28,383 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 22:52:28,413 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 22:52:28,413 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 22:52:28,413 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 22:52:28,413 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 22:52:28,413 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 22:52:28,413 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 22:52:28,414 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 22:52:28,414 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 22:52:28,512 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states. [2019-10-13 22:52:28,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2019-10-13 22:52:28,535 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:52:28,536 INFO L380 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2019-10-13 22:52:28,539 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:52:28,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:52:28,545 INFO L82 PathProgramCache]: Analyzing trace with hash -1574165473, now seen corresponding path program 1 times [2019-10-13 22:52:28,554 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:52:28,554 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229115287] [2019-10-13 22:52:28,554 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:52:28,555 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:52:28,555 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:52:28,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:52:29,351 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2019-10-13 22:52:29,352 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229115287] [2019-10-13 22:52:29,353 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:52:29,353 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 22:52:29,354 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460190541] [2019-10-13 22:52:29,361 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 22:52:29,361 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:52:29,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 22:52:29,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 22:52:29,378 INFO L87 Difference]: Start difference. First operand 624 states. Second operand 2 states. [2019-10-13 22:52:29,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:52:29,511 INFO L93 Difference]: Finished difference Result 923 states and 1185 transitions. [2019-10-13 22:52:29,512 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 22:52:29,515 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 196 [2019-10-13 22:52:29,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:52:29,562 INFO L225 Difference]: With dead ends: 923 [2019-10-13 22:52:29,562 INFO L226 Difference]: Without dead ends: 449 [2019-10-13 22:52:29,571 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 22:52:29,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2019-10-13 22:52:29,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 449. [2019-10-13 22:52:29,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 449 states. [2019-10-13 22:52:29,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 571 transitions. [2019-10-13 22:52:29,664 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 571 transitions. Word has length 196 [2019-10-13 22:52:29,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:52:29,667 INFO L462 AbstractCegarLoop]: Abstraction has 449 states and 571 transitions. [2019-10-13 22:52:29,667 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 22:52:29,667 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 571 transitions. [2019-10-13 22:52:29,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-10-13 22:52:29,674 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:52:29,674 INFO L380 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2019-10-13 22:52:29,675 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:52:29,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:52:29,675 INFO L82 PathProgramCache]: Analyzing trace with hash 1437258750, now seen corresponding path program 1 times [2019-10-13 22:52:29,675 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:52:29,676 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821349339] [2019-10-13 22:52:29,676 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:52:29,676 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:52:29,676 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:52:29,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:52:30,002 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2019-10-13 22:52:30,002 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821349339] [2019-10-13 22:52:30,003 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:52:30,003 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:52:30,003 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578638032] [2019-10-13 22:52:30,012 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:52:30,012 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:52:30,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:52:30,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:52:30,013 INFO L87 Difference]: Start difference. First operand 449 states and 571 transitions. Second operand 3 states. [2019-10-13 22:52:30,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:52:30,208 INFO L93 Difference]: Finished difference Result 917 states and 1167 transitions. [2019-10-13 22:52:30,208 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:52:30,208 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 191 [2019-10-13 22:52:30,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:52:30,213 INFO L225 Difference]: With dead ends: 917 [2019-10-13 22:52:30,213 INFO L226 Difference]: Without dead ends: 490 [2019-10-13 22:52:30,217 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:52:30,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2019-10-13 22:52:30,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 482. [2019-10-13 22:52:30,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 482 states. [2019-10-13 22:52:30,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 612 transitions. [2019-10-13 22:52:30,278 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 612 transitions. Word has length 191 [2019-10-13 22:52:30,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:52:30,281 INFO L462 AbstractCegarLoop]: Abstraction has 482 states and 612 transitions. [2019-10-13 22:52:30,281 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:52:30,281 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 612 transitions. [2019-10-13 22:52:30,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2019-10-13 22:52:30,291 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:52:30,292 INFO L380 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:52:30,292 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:52:30,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:52:30,293 INFO L82 PathProgramCache]: Analyzing trace with hash -1074702364, now seen corresponding path program 1 times [2019-10-13 22:52:30,293 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:52:30,293 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71600171] [2019-10-13 22:52:30,293 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:52:30,294 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:52:30,294 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:52:30,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:52:30,704 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2019-10-13 22:52:30,708 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71600171] [2019-10-13 22:52:30,708 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:52:30,708 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:52:30,708 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113353219] [2019-10-13 22:52:30,709 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:52:30,710 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:52:30,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:52:30,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:52:30,711 INFO L87 Difference]: Start difference. First operand 482 states and 612 transitions. Second operand 3 states. [2019-10-13 22:52:30,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:52:30,939 INFO L93 Difference]: Finished difference Result 991 states and 1266 transitions. [2019-10-13 22:52:30,939 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:52:30,940 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 239 [2019-10-13 22:52:30,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:52:30,944 INFO L225 Difference]: With dead ends: 991 [2019-10-13 22:52:30,944 INFO L226 Difference]: Without dead ends: 534 [2019-10-13 22:52:30,946 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:52:30,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2019-10-13 22:52:30,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 526. [2019-10-13 22:52:30,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2019-10-13 22:52:30,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 668 transitions. [2019-10-13 22:52:30,971 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 668 transitions. Word has length 239 [2019-10-13 22:52:30,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:52:30,972 INFO L462 AbstractCegarLoop]: Abstraction has 526 states and 668 transitions. [2019-10-13 22:52:30,972 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:52:30,972 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 668 transitions. [2019-10-13 22:52:30,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2019-10-13 22:52:30,977 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:52:30,977 INFO L380 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:52:30,977 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:52:30,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:52:30,978 INFO L82 PathProgramCache]: Analyzing trace with hash 2102400332, now seen corresponding path program 1 times [2019-10-13 22:52:30,978 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:52:30,978 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465372260] [2019-10-13 22:52:30,979 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:52:30,979 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:52:30,979 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:52:31,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:52:31,313 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2019-10-13 22:52:31,313 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465372260] [2019-10-13 22:52:31,313 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:52:31,314 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:52:31,314 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693729984] [2019-10-13 22:52:31,315 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:52:31,315 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:52:31,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:52:31,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:52:31,315 INFO L87 Difference]: Start difference. First operand 526 states and 668 transitions. Second operand 3 states. [2019-10-13 22:52:31,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:52:31,385 INFO L93 Difference]: Finished difference Result 1038 states and 1333 transitions. [2019-10-13 22:52:31,387 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:52:31,387 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 256 [2019-10-13 22:52:31,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:52:31,394 INFO L225 Difference]: With dead ends: 1038 [2019-10-13 22:52:31,394 INFO L226 Difference]: Without dead ends: 537 [2019-10-13 22:52:31,397 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:52:31,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2019-10-13 22:52:31,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 527. [2019-10-13 22:52:31,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 527 states. [2019-10-13 22:52:31,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 669 transitions. [2019-10-13 22:52:31,429 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 669 transitions. Word has length 256 [2019-10-13 22:52:31,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:52:31,431 INFO L462 AbstractCegarLoop]: Abstraction has 527 states and 669 transitions. [2019-10-13 22:52:31,431 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:52:31,432 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 669 transitions. [2019-10-13 22:52:31,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2019-10-13 22:52:31,438 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:52:31,438 INFO L380 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:52:31,438 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:52:31,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:52:31,439 INFO L82 PathProgramCache]: Analyzing trace with hash -467366676, now seen corresponding path program 1 times [2019-10-13 22:52:31,439 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:52:31,439 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273884448] [2019-10-13 22:52:31,439 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:52:31,440 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:52:31,440 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:52:31,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:52:32,043 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2019-10-13 22:52:32,043 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273884448] [2019-10-13 22:52:32,044 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:52:32,044 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:52:32,044 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447585926] [2019-10-13 22:52:32,045 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:52:32,046 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:52:32,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:52:32,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:52:32,046 INFO L87 Difference]: Start difference. First operand 527 states and 669 transitions. Second operand 3 states. [2019-10-13 22:52:32,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:52:32,092 INFO L93 Difference]: Finished difference Result 1035 states and 1327 transitions. [2019-10-13 22:52:32,093 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:52:32,094 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 253 [2019-10-13 22:52:32,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:52:32,099 INFO L225 Difference]: With dead ends: 1035 [2019-10-13 22:52:32,099 INFO L226 Difference]: Without dead ends: 533 [2019-10-13 22:52:32,103 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:52:32,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2019-10-13 22:52:32,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 531. [2019-10-13 22:52:32,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 531 states. [2019-10-13 22:52:32,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 675 transitions. [2019-10-13 22:52:32,130 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 675 transitions. Word has length 253 [2019-10-13 22:52:32,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:52:32,132 INFO L462 AbstractCegarLoop]: Abstraction has 531 states and 675 transitions. [2019-10-13 22:52:32,132 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:52:32,132 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 675 transitions. [2019-10-13 22:52:32,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2019-10-13 22:52:32,138 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:52:32,139 INFO L380 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:52:32,139 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:52:32,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:52:32,139 INFO L82 PathProgramCache]: Analyzing trace with hash 1235800543, now seen corresponding path program 1 times [2019-10-13 22:52:32,140 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:52:32,140 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847145152] [2019-10-13 22:52:32,140 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:52:32,140 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:52:32,140 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:52:32,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:52:32,609 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2019-10-13 22:52:32,609 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847145152] [2019-10-13 22:52:32,609 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:52:32,610 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 22:52:32,610 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217877431] [2019-10-13 22:52:32,610 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 22:52:32,611 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:52:32,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 22:52:32,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 22:52:32,611 INFO L87 Difference]: Start difference. First operand 531 states and 675 transitions. Second operand 8 states. [2019-10-13 22:52:32,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:52:32,799 INFO L93 Difference]: Finished difference Result 1043 states and 1326 transitions. [2019-10-13 22:52:32,800 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 22:52:32,800 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 278 [2019-10-13 22:52:32,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:52:32,804 INFO L225 Difference]: With dead ends: 1043 [2019-10-13 22:52:32,804 INFO L226 Difference]: Without dead ends: 533 [2019-10-13 22:52:32,806 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 22:52:32,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2019-10-13 22:52:32,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 531. [2019-10-13 22:52:32,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 531 states. [2019-10-13 22:52:32,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 674 transitions. [2019-10-13 22:52:32,825 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 674 transitions. Word has length 278 [2019-10-13 22:52:32,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:52:32,825 INFO L462 AbstractCegarLoop]: Abstraction has 531 states and 674 transitions. [2019-10-13 22:52:32,826 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 22:52:32,826 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 674 transitions. [2019-10-13 22:52:32,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2019-10-13 22:52:32,831 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:52:32,832 INFO L380 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:52:32,832 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:52:32,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:52:32,832 INFO L82 PathProgramCache]: Analyzing trace with hash 191312472, now seen corresponding path program 1 times [2019-10-13 22:52:32,832 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:52:32,833 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849597155] [2019-10-13 22:52:32,833 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:52:32,833 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:52:32,833 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:52:32,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:52:33,174 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2019-10-13 22:52:33,174 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849597155] [2019-10-13 22:52:33,174 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:52:33,175 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 22:52:33,175 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829287600] [2019-10-13 22:52:33,176 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 22:52:33,176 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:52:33,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 22:52:33,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 22:52:33,177 INFO L87 Difference]: Start difference. First operand 531 states and 674 transitions. Second operand 5 states. [2019-10-13 22:52:33,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:52:33,327 INFO L93 Difference]: Finished difference Result 1041 states and 1327 transitions. [2019-10-13 22:52:33,327 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 22:52:33,327 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 279 [2019-10-13 22:52:33,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:52:33,331 INFO L225 Difference]: With dead ends: 1041 [2019-10-13 22:52:33,331 INFO L226 Difference]: Without dead ends: 535 [2019-10-13 22:52:33,333 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 22:52:33,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2019-10-13 22:52:33,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 535. [2019-10-13 22:52:33,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 535 states. [2019-10-13 22:52:33,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 678 transitions. [2019-10-13 22:52:33,354 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 678 transitions. Word has length 279 [2019-10-13 22:52:33,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:52:33,355 INFO L462 AbstractCegarLoop]: Abstraction has 535 states and 678 transitions. [2019-10-13 22:52:33,355 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 22:52:33,355 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 678 transitions. [2019-10-13 22:52:33,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2019-10-13 22:52:33,359 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:52:33,359 INFO L380 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:52:33,360 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:52:33,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:52:33,360 INFO L82 PathProgramCache]: Analyzing trace with hash 455737300, now seen corresponding path program 1 times [2019-10-13 22:52:33,360 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:52:33,361 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593281713] [2019-10-13 22:52:33,361 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:52:33,361 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:52:33,361 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:52:33,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:52:33,689 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2019-10-13 22:52:33,690 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593281713] [2019-10-13 22:52:33,690 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:52:33,690 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 22:52:33,691 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492681225] [2019-10-13 22:52:33,691 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 22:52:33,691 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:52:33,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 22:52:33,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 22:52:33,692 INFO L87 Difference]: Start difference. First operand 535 states and 678 transitions. Second operand 5 states. [2019-10-13 22:52:33,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:52:33,738 INFO L93 Difference]: Finished difference Result 1049 states and 1335 transitions. [2019-10-13 22:52:33,738 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 22:52:33,739 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 296 [2019-10-13 22:52:33,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:52:33,742 INFO L225 Difference]: With dead ends: 1049 [2019-10-13 22:52:33,742 INFO L226 Difference]: Without dead ends: 539 [2019-10-13 22:52:33,745 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 22:52:33,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2019-10-13 22:52:33,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 535. [2019-10-13 22:52:33,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 535 states. [2019-10-13 22:52:33,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 678 transitions. [2019-10-13 22:52:33,763 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 678 transitions. Word has length 296 [2019-10-13 22:52:33,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:52:33,764 INFO L462 AbstractCegarLoop]: Abstraction has 535 states and 678 transitions. [2019-10-13 22:52:33,764 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 22:52:33,764 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 678 transitions. [2019-10-13 22:52:33,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2019-10-13 22:52:33,768 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:52:33,768 INFO L380 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:52:33,768 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:52:33,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:52:33,769 INFO L82 PathProgramCache]: Analyzing trace with hash 907487289, now seen corresponding path program 1 times [2019-10-13 22:52:33,769 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:52:33,769 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536095503] [2019-10-13 22:52:33,769 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:52:33,770 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:52:33,770 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:52:33,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:52:34,137 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2019-10-13 22:52:34,137 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536095503] [2019-10-13 22:52:34,138 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1201222771] [2019-10-13 22:52:34,138 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 22:52:35,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:52:35,065 INFO L256 TraceCheckSpWp]: Trace formula consists of 3116 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 22:52:35,086 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 22:52:35,203 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2019-10-13 22:52:35,204 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 22:52:35,636 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2019-10-13 22:52:35,637 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2136746755] [2019-10-13 22:52:35,674 INFO L162 IcfgInterpreter]: Started Sifa with 199 locations of interest [2019-10-13 22:52:35,674 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 22:52:35,682 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 22:52:35,690 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 22:52:35,690 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs