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-validator-v0.8/linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point_ldv-val-v0.8.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 12:59:59,038 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 12:59:59,040 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 12:59:59,053 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 12:59:59,054 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 12:59:59,055 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 12:59:59,056 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 12:59:59,058 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 12:59:59,060 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 12:59:59,060 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 12:59:59,061 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 12:59:59,062 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 12:59:59,063 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 12:59:59,064 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 12:59:59,064 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 12:59:59,066 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 12:59:59,066 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 12:59:59,067 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 12:59:59,069 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 12:59:59,070 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 12:59:59,072 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 12:59:59,073 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 12:59:59,074 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 12:59:59,075 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 12:59:59,077 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 12:59:59,077 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 12:59:59,077 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 12:59:59,078 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 12:59:59,078 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 12:59:59,079 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 12:59:59,079 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 12:59:59,080 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 12:59:59,081 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 12:59:59,082 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 12:59:59,083 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 12:59:59,083 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 12:59:59,083 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 12:59:59,084 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 12:59:59,084 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 12:59:59,085 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 12:59:59,086 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 12:59:59,086 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 [2019-10-07 12:59:59,100 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 12:59:59,101 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 12:59:59,102 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 12:59:59,102 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 12:59:59,102 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 12:59:59,103 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 12:59:59,103 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 12:59:59,103 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 12:59:59,103 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 12:59:59,103 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 12:59:59,104 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 12:59:59,104 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 12:59:59,104 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 12:59:59,104 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 12:59:59,105 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 12:59:59,105 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 12:59:59,105 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 12:59:59,105 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 12:59:59,105 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 12:59:59,106 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 12:59:59,106 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 12:59:59,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 12:59:59,106 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 12:59:59,107 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 12:59:59,107 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 12:59:59,107 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 12:59:59,107 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 12:59:59,107 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 12:59:59,108 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 [2019-10-07 12:59:59,437 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 12:59:59,455 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 12:59:59,458 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 12:59:59,460 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 12:59:59,460 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 12:59:59,461 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-10-07 12:59:59,532 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/749c20d69/d1bbb7a3d0cd4aeab18b26f21b02a634/FLAGc0e0d6a6c [2019-10-07 13:00:00,223 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 13:00:00,223 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-10-07 13:00:00,269 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/749c20d69/d1bbb7a3d0cd4aeab18b26f21b02a634/FLAGc0e0d6a6c [2019-10-07 13:00:00,328 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/749c20d69/d1bbb7a3d0cd4aeab18b26f21b02a634 [2019-10-07 13:00:00,341 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 13:00:00,342 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 13:00:00,343 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 13:00:00,344 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 13:00:00,347 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 13:00:00,348 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 01:00:00" (1/1) ... [2019-10-07 13:00:00,351 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73ce7a1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:00:00, skipping insertion in model container [2019-10-07 13:00:00,351 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 01:00:00" (1/1) ... [2019-10-07 13:00:00,359 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 13:00:00,488 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 13:00:01,915 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 13:00:01,946 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 13:00:02,220 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 13:00:02,375 INFO L192 MainTranslator]: Completed translation [2019-10-07 13:00:02,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:00:02 WrapperNode [2019-10-07 13:00:02,376 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 13:00:02,377 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 13:00:02,377 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 13:00:02,377 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 13:00:02,391 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:00:02" (1/1) ... [2019-10-07 13:00:02,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:00:02" (1/1) ... [2019-10-07 13:00:02,440 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:00:02" (1/1) ... [2019-10-07 13:00:02,441 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:00:02" (1/1) ... [2019-10-07 13:00:02,534 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:00:02" (1/1) ... [2019-10-07 13:00:02,555 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:00:02" (1/1) ... [2019-10-07 13:00:02,581 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:00:02" (1/1) ... [2019-10-07 13:00:02,613 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 13:00:02,616 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 13:00:02,617 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 13:00:02,617 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 13:00:02,618 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:00:02" (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 [2019-10-07 13:00:02,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 13:00:02,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 13:00:02,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~VOID [2019-10-07 13:00:02,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2019-10-07 13:00:02,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-10-07 13:00:02,689 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2019-10-07 13:00:02,689 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2019-10-07 13:00:02,689 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2019-10-07 13:00:02,689 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2019-10-07 13:00:02,690 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-10-07 13:00:02,690 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-10-07 13:00:02,690 INFO L138 BoogieDeclarations]: Found implementation of procedure get_capacity [2019-10-07 13:00:02,690 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2019-10-07 13:00:02,690 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-10-07 13:00:02,690 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_create_kmalloc_pool [2019-10-07 13:00:02,691 INFO L138 BoogieDeclarations]: Found implementation of procedure req_get_ioprio [2019-10-07 13:00:02,691 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_pos [2019-10-07 13:00:02,691 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_logical_block_size [2019-10-07 13:00:02,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-07 13:00:02,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-07 13:00:02,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-10-07 13:00:02,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-10-07 13:00:02,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-07 13:00:02,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-07 13:00:02,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-07 13:00:02,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-07 13:00:02,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-07 13:00:02,698 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-07 13:00:02,698 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-07 13:00:02,698 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_assign_page [2019-10-07 13:00:02,698 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_set_page [2019-10-07 13:00:02,699 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_set_buf [2019-10-07 13:00:02,699 INFO L138 BoogieDeclarations]: Found implementation of procedure virtqueue_add_buf [2019-10-07 13:00:02,699 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_has_feature [2019-10-07 13:00:02,699 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_config_buf [2019-10-07 13:00:02,699 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_find_single_vq [2019-10-07 13:00:02,699 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_done [2019-10-07 13:00:02,699 INFO L138 BoogieDeclarations]: Found implementation of procedure do_req [2019-10-07 13:00:02,700 INFO L138 BoogieDeclarations]: Found implementation of procedure do_virtblk_request [2019-10-07 13:00:02,700 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_prepare_flush [2019-10-07 13:00:02,701 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_get_id [2019-10-07 13:00:02,701 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_ioctl [2019-10-07 13:00:02,701 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_getgeo [2019-10-07 13:00:02,701 INFO L138 BoogieDeclarations]: Found implementation of procedure index_to_minor [2019-10-07 13:00:02,702 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_probe [2019-10-07 13:00:02,702 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_remove [2019-10-07 13:00:02,702 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2019-10-07 13:00:02,702 INFO L138 BoogieDeclarations]: Found implementation of procedure fini [2019-10-07 13:00:02,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_virtio_driver_1 [2019-10-07 13:00:02,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_block_device_operations_2 [2019-10-07 13:00:02,703 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 13:00:02,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2019-10-07 13:00:02,703 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-10-07 13:00:02,703 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-10-07 13:00:02,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blk_make_request_5 [2019-10-07 13:00:02,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-07 13:00:02,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-07 13:00:02,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-07 13:00:02,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-07 13:00:02,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-07 13:00:02,706 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR___0 [2019-10-07 13:00:02,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blk_get_request [2019-10-07 13:00:02,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blk_make_request [2019-10-07 13:00:02,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_blk_rq [2019-10-07 13:00:02,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-07 13:00:02,706 INFO L138 BoogieDeclarations]: Found implementation of procedure __blk_end_request_all [2019-10-07 13:00:02,707 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2019-10-07 13:00:02,707 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2019-10-07 13:00:02,707 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-10-07 13:00:02,707 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-10-07 13:00:02,707 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2019-10-07 13:00:02,707 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-10-07 13:00:02,708 INFO L138 BoogieDeclarations]: Found implementation of procedure add_disk [2019-10-07 13:00:02,708 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_disk [2019-10-07 13:00:02,708 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_map_kern [2019-10-07 13:00:02,709 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_put [2019-10-07 13:00:02,710 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_cleanup_queue [2019-10-07 13:00:02,710 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_execute_rq [2019-10-07 13:00:02,710 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_init_queue [2019-10-07 13:00:02,710 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_peek_request [2019-10-07 13:00:02,711 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_alignment_offset [2019-10-07 13:00:02,711 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_bounce_limit [2019-10-07 13:00:02,711 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_io_min [2019-10-07 13:00:02,712 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_io_opt [2019-10-07 13:00:02,712 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_logical_block_size [2019-10-07 13:00:02,712 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_hw_sectors [2019-10-07 13:00:02,712 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_segment_size [2019-10-07 13:00:02,713 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_segments [2019-10-07 13:00:02,713 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_ordered [2019-10-07 13:00:02,713 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_physical_block_size [2019-10-07 13:00:02,713 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_map_sg [2019-10-07 13:00:02,713 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_start_queue [2019-10-07 13:00:02,713 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_start_request [2019-10-07 13:00:02,714 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_stop_queue [2019-10-07 13:00:02,714 INFO L138 BoogieDeclarations]: Found implementation of procedure del_gendisk [2019-10-07 13:00:02,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-07 13:00:02,714 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2019-10-07 13:00:02,714 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_alloc [2019-10-07 13:00:02,714 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_create [2019-10-07 13:00:02,714 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_destroy [2019-10-07 13:00:02,714 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_free [2019-10-07 13:00:02,715 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-10-07 13:00:02,715 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2019-10-07 13:00:02,715 INFO L138 BoogieDeclarations]: Found implementation of procedure register_blkdev [2019-10-07 13:00:02,715 INFO L138 BoogieDeclarations]: Found implementation of procedure register_virtio_driver [2019-10-07 13:00:02,715 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_cmd_ioctl [2019-10-07 13:00:02,716 INFO L138 BoogieDeclarations]: Found implementation of procedure set_disk_ro [2019-10-07 13:00:02,716 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_init_table [2019-10-07 13:00:02,716 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2019-10-07 13:00:02,716 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_virtio_driver [2019-10-07 13:00:02,716 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_check_driver_offered_feature [2019-10-07 13:00:02,717 INFO L138 BoogieDeclarations]: Found implementation of procedure virtqueue_add_buf_gfp [2019-10-07 13:00:02,717 INFO L138 BoogieDeclarations]: Found implementation of procedure virtqueue_get_buf [2019-10-07 13:00:02,717 INFO L138 BoogieDeclarations]: Found implementation of procedure virtqueue_kick [2019-10-07 13:00:02,717 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-07 13:00:02,718 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-07 13:00:02,718 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-07 13:00:02,719 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-07 13:00:02,719 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 13:00:02,719 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-07 13:00:02,720 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2019-10-07 13:00:02,720 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-10-07 13:00:02,720 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-10-07 13:00:02,720 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2019-10-07 13:00:02,721 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-07 13:00:02,721 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2019-10-07 13:00:02,722 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-10-07 13:00:02,722 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-10-07 13:00:02,722 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2019-10-07 13:00:02,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 13:00:02,723 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2019-10-07 13:00:02,724 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2019-10-07 13:00:02,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 13:00:02,729 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2019-10-07 13:00:02,733 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2019-10-07 13:00:02,734 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-10-07 13:00:02,734 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2019-10-07 13:00:02,734 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-10-07 13:00:02,734 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-10-07 13:00:02,734 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-10-07 13:00:02,734 INFO L130 BoogieDeclarations]: Found specification of procedure register_blkdev [2019-10-07 13:00:02,735 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2019-10-07 13:00:02,735 INFO L130 BoogieDeclarations]: Found specification of procedure add_disk [2019-10-07 13:00:02,735 INFO L130 BoogieDeclarations]: Found specification of procedure del_gendisk [2019-10-07 13:00:02,742 INFO L130 BoogieDeclarations]: Found specification of procedure set_disk_ro [2019-10-07 13:00:02,743 INFO L130 BoogieDeclarations]: Found specification of procedure get_capacity [2019-10-07 13:00:02,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 13:00:02,743 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2019-10-07 13:00:02,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 13:00:02,743 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_disk [2019-10-07 13:00:02,744 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2019-10-07 13:00:02,744 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-10-07 13:00:02,744 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-10-07 13:00:02,744 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_create [2019-10-07 13:00:02,744 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_destroy [2019-10-07 13:00:02,745 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_alloc [2019-10-07 13:00:02,745 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_free [2019-10-07 13:00:02,745 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_kmalloc [2019-10-07 13:00:02,747 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_kfree [2019-10-07 13:00:02,747 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_create_kmalloc_pool [2019-10-07 13:00:02,747 INFO L130 BoogieDeclarations]: Found specification of procedure bio_put [2019-10-07 13:00:02,747 INFO L130 BoogieDeclarations]: Found specification of procedure bio_map_kern [2019-10-07 13:00:02,748 INFO L130 BoogieDeclarations]: Found specification of procedure req_get_ioprio [2019-10-07 13:00:02,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blk_make_request_5 [2019-10-07 13:00:02,748 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_cmd_ioctl [2019-10-07 13:00:02,748 INFO L130 BoogieDeclarations]: Found specification of procedure blk_start_queue [2019-10-07 13:00:02,748 INFO L130 BoogieDeclarations]: Found specification of procedure blk_stop_queue [2019-10-07 13:00:02,748 INFO L130 BoogieDeclarations]: Found specification of procedure blk_execute_rq [2019-10-07 13:00:02,749 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_pos [2019-10-07 13:00:02,749 INFO L130 BoogieDeclarations]: Found specification of procedure blk_peek_request [2019-10-07 13:00:02,749 INFO L130 BoogieDeclarations]: Found specification of procedure blk_start_request [2019-10-07 13:00:02,749 INFO L130 BoogieDeclarations]: Found specification of procedure __blk_end_request_all [2019-10-07 13:00:02,749 INFO L130 BoogieDeclarations]: Found specification of procedure blk_init_queue [2019-10-07 13:00:02,749 INFO L130 BoogieDeclarations]: Found specification of procedure blk_cleanup_queue [2019-10-07 13:00:02,750 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_bounce_limit [2019-10-07 13:00:02,750 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_hw_sectors [2019-10-07 13:00:02,750 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_segments [2019-10-07 13:00:02,750 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_segment_size [2019-10-07 13:00:02,750 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_logical_block_size [2019-10-07 13:00:02,751 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_physical_block_size [2019-10-07 13:00:02,751 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_alignment_offset [2019-10-07 13:00:02,751 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_io_min [2019-10-07 13:00:02,751 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_io_opt [2019-10-07 13:00:02,751 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_ordered [2019-10-07 13:00:02,751 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_map_sg [2019-10-07 13:00:02,752 INFO L130 BoogieDeclarations]: Found specification of procedure queue_logical_block_size [2019-10-07 13:00:02,752 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 13:00:02,752 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-07 13:00:02,752 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 13:00:02,752 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-07 13:00:02,753 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-07 13:00:02,753 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-07 13:00:02,753 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-07 13:00:02,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-07 13:00:02,753 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 13:00:02,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-07 13:00:02,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-07 13:00:02,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-10-07 13:00:02,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-10-07 13:00:02,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-07 13:00:02,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-07 13:00:02,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-07 13:00:02,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-07 13:00:02,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-07 13:00:02,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blk_make_request [2019-10-07 13:00:02,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-07 13:00:02,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-07 13:00:02,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-07 13:00:02,758 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-07 13:00:02,758 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-07 13:00:02,759 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-07 13:00:02,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_virtio_driver_1 [2019-10-07 13:00:02,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_block_device_operations_2 [2019-10-07 13:00:02,759 INFO L130 BoogieDeclarations]: Found specification of procedure sg_assign_page [2019-10-07 13:00:02,760 INFO L130 BoogieDeclarations]: Found specification of procedure sg_set_page [2019-10-07 13:00:02,760 INFO L130 BoogieDeclarations]: Found specification of procedure sg_set_buf [2019-10-07 13:00:02,760 INFO L130 BoogieDeclarations]: Found specification of procedure sg_init_table [2019-10-07 13:00:02,760 INFO L130 BoogieDeclarations]: Found specification of procedure virtqueue_add_buf_gfp [2019-10-07 13:00:02,760 INFO L130 BoogieDeclarations]: Found specification of procedure virtqueue_add_buf [2019-10-07 13:00:02,760 INFO L130 BoogieDeclarations]: Found specification of procedure virtqueue_kick [2019-10-07 13:00:02,761 INFO L130 BoogieDeclarations]: Found specification of procedure virtqueue_get_buf [2019-10-07 13:00:02,761 INFO L130 BoogieDeclarations]: Found specification of procedure register_virtio_driver [2019-10-07 13:00:02,761 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_virtio_driver [2019-10-07 13:00:02,761 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_check_driver_offered_feature [2019-10-07 13:00:02,761 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_has_feature [2019-10-07 13:00:02,762 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_config_buf [2019-10-07 13:00:02,762 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~VOID [2019-10-07 13:00:02,762 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_find_single_vq [2019-10-07 13:00:02,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 13:00:02,762 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2019-10-07 13:00:02,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 13:00:02,763 INFO L130 BoogieDeclarations]: Found specification of procedure blk_done [2019-10-07 13:00:02,763 INFO L130 BoogieDeclarations]: Found specification of procedure do_req [2019-10-07 13:00:02,763 INFO L130 BoogieDeclarations]: Found specification of procedure do_virtblk_request [2019-10-07 13:00:02,763 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_prepare_flush [2019-10-07 13:00:02,763 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_get_id [2019-10-07 13:00:02,764 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_ioctl [2019-10-07 13:00:02,764 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_getgeo [2019-10-07 13:00:02,764 INFO L130 BoogieDeclarations]: Found specification of procedure index_to_minor [2019-10-07 13:00:02,764 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_probe [2019-10-07 13:00:02,764 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-10-07 13:00:02,765 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_remove [2019-10-07 13:00:02,765 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-10-07 13:00:02,765 INFO L130 BoogieDeclarations]: Found specification of procedure fini [2019-10-07 13:00:02,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-07 13:00:02,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-07 13:00:02,765 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 13:00:02,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-07 13:00:02,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-07 13:00:02,766 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR___0 [2019-10-07 13:00:02,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blk_get_request [2019-10-07 13:00:02,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_blk_rq [2019-10-07 13:00:02,767 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-07 13:00:02,767 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 13:00:02,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 13:00:02,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-07 13:00:02,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 13:00:02,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 13:00:03,993 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-07 13:00:06,361 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 13:00:06,362 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-07 13:00:06,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 01:00:06 BoogieIcfgContainer [2019-10-07 13:00:06,364 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 13:00:06,365 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 13:00:06,365 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 13:00:06,368 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 13:00:06,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 01:00:00" (1/3) ... [2019-10-07 13:00:06,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61cf11d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 01:00:06, skipping insertion in model container [2019-10-07 13:00:06,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:00:02" (2/3) ... [2019-10-07 13:00:06,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61cf11d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 01:00:06, skipping insertion in model container [2019-10-07 13:00:06,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 01:00:06" (3/3) ... [2019-10-07 13:00:06,372 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-10-07 13:00:06,382 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 13:00:06,391 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 13:00:06,404 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 13:00:06,436 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 13:00:06,436 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 13:00:06,436 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 13:00:06,436 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 13:00:06,436 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 13:00:06,436 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 13:00:06,437 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 13:00:06,437 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 13:00:06,468 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states. [2019-10-07 13:00:06,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-10-07 13:00:06,478 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:00:06,480 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 13:00:06,482 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:00:06,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:00:06,489 INFO L82 PathProgramCache]: Analyzing trace with hash 292547117, now seen corresponding path program 1 times [2019-10-07 13:00:06,498 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:00:06,499 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:00:06,499 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:00:06,499 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:00:06,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:00:06,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:00:07,034 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-10-07 13:00:07,035 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:00:07,036 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:00:07,036 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 13:00:07,042 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 13:00:07,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 13:00:07,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 13:00:07,060 INFO L87 Difference]: Start difference. First operand 643 states. Second operand 3 states. [2019-10-07 13:00:07,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:00:07,295 INFO L93 Difference]: Finished difference Result 1789 states and 2156 transitions. [2019-10-07 13:00:07,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 13:00:07,297 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 54 [2019-10-07 13:00:07,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:00:07,322 INFO L225 Difference]: With dead ends: 1789 [2019-10-07 13:00:07,322 INFO L226 Difference]: Without dead ends: 1152 [2019-10-07 13:00:07,330 INFO L606 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 [2019-10-07 13:00:07,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2019-10-07 13:00:07,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 1149. [2019-10-07 13:00:07,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1149 states. [2019-10-07 13:00:07,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1149 states to 1149 states and 1359 transitions. [2019-10-07 13:00:07,478 INFO L78 Accepts]: Start accepts. Automaton has 1149 states and 1359 transitions. Word has length 54 [2019-10-07 13:00:07,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:00:07,479 INFO L462 AbstractCegarLoop]: Abstraction has 1149 states and 1359 transitions. [2019-10-07 13:00:07,479 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 13:00:07,479 INFO L276 IsEmpty]: Start isEmpty. Operand 1149 states and 1359 transitions. [2019-10-07 13:00:07,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-10-07 13:00:07,483 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:00:07,484 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 13:00:07,484 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:00:07,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:00:07,484 INFO L82 PathProgramCache]: Analyzing trace with hash 1493337068, now seen corresponding path program 1 times [2019-10-07 13:00:07,485 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:00:07,485 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:00:07,485 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:00:07,485 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:00:07,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:00:07,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:00:07,634 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-10-07 13:00:07,635 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:00:07,635 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:00:07,635 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 13:00:07,637 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 13:00:07,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 13:00:07,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 13:00:07,638 INFO L87 Difference]: Start difference. First operand 1149 states and 1359 transitions. Second operand 3 states. [2019-10-07 13:00:07,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:00:07,718 INFO L93 Difference]: Finished difference Result 2223 states and 2640 transitions. [2019-10-07 13:00:07,719 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 13:00:07,719 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 57 [2019-10-07 13:00:07,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:00:07,731 INFO L225 Difference]: With dead ends: 2223 [2019-10-07 13:00:07,732 INFO L226 Difference]: Without dead ends: 2207 [2019-10-07 13:00:07,733 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 13:00:07,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2207 states. [2019-10-07 13:00:07,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2207 to 2207. [2019-10-07 13:00:07,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2207 states. [2019-10-07 13:00:07,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2207 states to 2207 states and 2620 transitions. [2019-10-07 13:00:07,831 INFO L78 Accepts]: Start accepts. Automaton has 2207 states and 2620 transitions. Word has length 57 [2019-10-07 13:00:07,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:00:07,832 INFO L462 AbstractCegarLoop]: Abstraction has 2207 states and 2620 transitions. [2019-10-07 13:00:07,832 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 13:00:07,832 INFO L276 IsEmpty]: Start isEmpty. Operand 2207 states and 2620 transitions. [2019-10-07 13:00:07,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2019-10-07 13:00:07,841 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:00:07,841 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 13:00:07,841 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:00:07,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:00:07,842 INFO L82 PathProgramCache]: Analyzing trace with hash -1430438193, now seen corresponding path program 1 times [2019-10-07 13:00:07,842 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:00:07,842 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:00:07,842 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:00:07,843 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:00:07,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:00:07,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:00:08,000 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-07 13:00:08,000 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:00:08,001 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:00:08,001 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 13:00:08,001 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 13:00:08,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 13:00:08,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 13:00:08,002 INFO L87 Difference]: Start difference. First operand 2207 states and 2620 transitions. Second operand 3 states. [2019-10-07 13:00:08,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:00:08,279 INFO L93 Difference]: Finished difference Result 6234 states and 7389 transitions. [2019-10-07 13:00:08,279 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 13:00:08,279 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 129 [2019-10-07 13:00:08,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:00:08,312 INFO L225 Difference]: With dead ends: 6234 [2019-10-07 13:00:08,312 INFO L226 Difference]: Without dead ends: 4048 [2019-10-07 13:00:08,323 INFO L606 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 [2019-10-07 13:00:08,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4048 states. [2019-10-07 13:00:08,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4048 to 4033. [2019-10-07 13:00:08,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4033 states. [2019-10-07 13:00:08,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4033 states to 4033 states and 4775 transitions. [2019-10-07 13:00:08,532 INFO L78 Accepts]: Start accepts. Automaton has 4033 states and 4775 transitions. Word has length 129 [2019-10-07 13:00:08,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:00:08,535 INFO L462 AbstractCegarLoop]: Abstraction has 4033 states and 4775 transitions. [2019-10-07 13:00:08,536 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 13:00:08,536 INFO L276 IsEmpty]: Start isEmpty. Operand 4033 states and 4775 transitions. [2019-10-07 13:00:08,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2019-10-07 13:00:08,551 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:00:08,551 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2019-10-07 13:00:08,551 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:00:08,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:00:08,552 INFO L82 PathProgramCache]: Analyzing trace with hash -1994225214, now seen corresponding path program 1 times [2019-10-07 13:00:08,552 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:00:08,552 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:00:08,553 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:00:08,553 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:00:08,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:00:08,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:00:08,752 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-07 13:00:08,752 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:00:08,752 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:00:08,752 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 13:00:08,753 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 13:00:08,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 13:00:08,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 13:00:08,754 INFO L87 Difference]: Start difference. First operand 4033 states and 4775 transitions. Second operand 5 states. [2019-10-07 13:00:09,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:00:09,019 INFO L93 Difference]: Finished difference Result 8064 states and 9551 transitions. [2019-10-07 13:00:09,020 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 13:00:09,020 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 168 [2019-10-07 13:00:09,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:00:09,042 INFO L225 Difference]: With dead ends: 8064 [2019-10-07 13:00:09,042 INFO L226 Difference]: Without dead ends: 4048 [2019-10-07 13:00:09,053 INFO L606 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 [2019-10-07 13:00:09,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4048 states. [2019-10-07 13:00:09,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4048 to 4040. [2019-10-07 13:00:09,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4040 states. [2019-10-07 13:00:09,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4040 states to 4040 states and 4780 transitions. [2019-10-07 13:00:09,220 INFO L78 Accepts]: Start accepts. Automaton has 4040 states and 4780 transitions. Word has length 168 [2019-10-07 13:00:09,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:00:09,221 INFO L462 AbstractCegarLoop]: Abstraction has 4040 states and 4780 transitions. [2019-10-07 13:00:09,221 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 13:00:09,221 INFO L276 IsEmpty]: Start isEmpty. Operand 4040 states and 4780 transitions. [2019-10-07 13:00:09,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2019-10-07 13:00:09,228 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:00:09,229 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2019-10-07 13:00:09,229 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:00:09,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:00:09,229 INFO L82 PathProgramCache]: Analyzing trace with hash 1782482205, now seen corresponding path program 1 times [2019-10-07 13:00:09,230 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:00:09,230 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:00:09,230 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:00:09,230 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:00:09,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:00:09,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:00:09,498 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-10-07 13:00:09,499 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:00:09,499 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 13:00:09,499 INFO L95 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 [2019-10-07 13:00:10,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:00:10,040 INFO L256 TraceCheckSpWp]: Trace formula consists of 1461 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-07 13:00:10,054 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 13:00:10,183 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2019-10-07 13:00:10,183 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 13:00:10,439 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 13:00:10,483 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 13:00:10,632 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-10-07 13:00:10,633 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 13:00:10,634 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 12 [2019-10-07 13:00:10,634 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-07 13:00:10,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-07 13:00:10,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2019-10-07 13:00:10,635 INFO L87 Difference]: Start difference. First operand 4040 states and 4780 transitions. Second operand 6 states. [2019-10-07 13:00:10,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:00:10,919 INFO L93 Difference]: Finished difference Result 8067 states and 9548 transitions. [2019-10-07 13:00:10,919 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 13:00:10,920 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 172 [2019-10-07 13:00:10,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:00:10,941 INFO L225 Difference]: With dead ends: 8067 [2019-10-07 13:00:10,942 INFO L226 Difference]: Without dead ends: 4041 [2019-10-07 13:00:10,954 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 337 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2019-10-07 13:00:10,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4041 states. [2019-10-07 13:00:11,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4041 to 4041. [2019-10-07 13:00:11,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4041 states. [2019-10-07 13:00:11,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4041 states to 4041 states and 4781 transitions. [2019-10-07 13:00:11,134 INFO L78 Accepts]: Start accepts. Automaton has 4041 states and 4781 transitions. Word has length 172 [2019-10-07 13:00:11,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:00:11,135 INFO L462 AbstractCegarLoop]: Abstraction has 4041 states and 4781 transitions. [2019-10-07 13:00:11,135 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-07 13:00:11,135 INFO L276 IsEmpty]: Start isEmpty. Operand 4041 states and 4781 transitions. [2019-10-07 13:00:11,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-10-07 13:00:11,146 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:00:11,147 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2019-10-07 13:00:11,356 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 13:00:11,356 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:00:11,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:00:11,356 INFO L82 PathProgramCache]: Analyzing trace with hash 722073599, now seen corresponding path program 1 times [2019-10-07 13:00:11,357 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:00:11,357 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:00:11,357 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:00:11,357 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:00:11,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:00:11,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:00:11,675 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-07 13:00:11,675 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:00:11,675 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 13:00:11,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 13:00:12,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:00:12,129 INFO L256 TraceCheckSpWp]: Trace formula consists of 1473 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-07 13:00:12,139 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 13:00:12,313 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 20 proven. 1 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-07 13:00:12,314 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 13:00:12,548 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 13:00:12,578 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 13:00:12,579 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 13:00:12,580 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 13:00:16,212 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-07 13:00:16,350 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-07 13:00:16,353 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 13:00:16,392 INFO L162 IcfgInterpreter]: Started Sifa with 140 locations of interest [2019-10-07 13:00:16,392 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 13:00:16,399 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 13:00:16,418 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 13:00:16,419 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 13:00:17,047 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 13:00:17,954 WARN L191 SmtUtils]: Spent 567.00 ms on a formula simplification that was a NOOP. DAG size: 450 [2019-10-07 13:00:18,343 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 510 [2019-10-07 13:00:18,522 WARN L191 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 510 [2019-10-07 13:00:18,686 WARN L191 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 510 [2019-10-07 13:00:18,852 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 510 [2019-10-07 13:00:19,175 WARN L191 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 512 DAG size of output: 510 [2019-10-07 13:00:19,375 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 510 [2019-10-07 13:00:19,675 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 510 [2019-10-07 13:00:19,919 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 510 [2019-10-07 13:00:20,166 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 510 [2019-10-07 13:00:20,385 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 510 [2019-10-07 13:00:20,404 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 133 for LOIs [2019-10-07 13:00:20,741 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 509 [2019-10-07 13:00:20,744 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 526 for LOIs [2019-10-07 13:00:20,865 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 526 [2019-10-07 13:00:21,115 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 572 [2019-10-07 13:00:21,386 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 13:00:21,563 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 596 [2019-10-07 13:00:23,051 WARN L191 SmtUtils]: Spent 440.00 ms on a formula simplification that was a NOOP. DAG size: 249 [2019-10-07 13:00:23,269 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 728 [2019-10-07 13:00:23,705 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 726 [2019-10-07 13:00:23,970 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 13:00:23,972 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) 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) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 13:00:23,978 INFO L168 Benchmark]: Toolchain (without parser) took 23635.32 ms. Allocated memory was 144.7 MB in the beginning and 730.3 MB in the end (delta: 585.6 MB). Free memory was 97.2 MB in the beginning and 243.5 MB in the end (delta: -146.3 MB). Peak memory consumption was 439.3 MB. Max. memory is 7.1 GB. [2019-10-07 13:00:23,978 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 144.7 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-10-07 13:00:23,979 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2032.75 ms. Allocated memory was 144.7 MB in the beginning and 235.9 MB in the end (delta: 91.2 MB). Free memory was 97.0 MB in the beginning and 195.0 MB in the end (delta: -98.0 MB). Peak memory consumption was 82.7 MB. Max. memory is 7.1 GB. [2019-10-07 13:00:23,980 INFO L168 Benchmark]: Boogie Preprocessor took 236.45 ms. Allocated memory is still 235.9 MB. Free memory was 195.0 MB in the beginning and 182.9 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 7.1 GB. [2019-10-07 13:00:23,981 INFO L168 Benchmark]: RCFGBuilder took 3747.45 ms. Allocated memory was 235.9 MB in the beginning and 257.4 MB in the end (delta: 21.5 MB). Free memory was 182.9 MB in the beginning and 97.2 MB in the end (delta: 85.6 MB). Peak memory consumption was 127.5 MB. Max. memory is 7.1 GB. [2019-10-07 13:00:23,982 INFO L168 Benchmark]: TraceAbstraction took 17611.21 ms. Allocated memory was 257.4 MB in the beginning and 730.3 MB in the end (delta: 472.9 MB). Free memory was 97.2 MB in the beginning and 243.5 MB in the end (delta: -146.2 MB). Peak memory consumption was 326.7 MB. Max. memory is 7.1 GB. [2019-10-07 13:00:23,985 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 144.7 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2032.75 ms. Allocated memory was 144.7 MB in the beginning and 235.9 MB in the end (delta: 91.2 MB). Free memory was 97.0 MB in the beginning and 195.0 MB in the end (delta: -98.0 MB). Peak memory consumption was 82.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 236.45 ms. Allocated memory is still 235.9 MB. Free memory was 195.0 MB in the beginning and 182.9 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3747.45 ms. Allocated memory was 235.9 MB in the beginning and 257.4 MB in the end (delta: 21.5 MB). Free memory was 182.9 MB in the beginning and 97.2 MB in the end (delta: 85.6 MB). Peak memory consumption was 127.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 17611.21 ms. Allocated memory was 257.4 MB in the beginning and 730.3 MB in the end (delta: 472.9 MB). Free memory was 97.2 MB in the beginning and 243.5 MB in the end (delta: -146.2 MB). Peak memory consumption was 326.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...