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-f4eb214f-m [2019-10-13 22:54:43,512 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 22:54:43,515 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 22:54:43,535 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 22:54:43,535 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 22:54:43,537 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 22:54:43,539 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 22:54:43,545 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 22:54:43,547 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 22:54:43,548 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 22:54:43,549 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 22:54:43,550 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 22:54:43,550 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 22:54:43,551 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 22:54:43,552 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 22:54:43,553 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 22:54:43,554 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 22:54:43,555 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 22:54:43,557 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 22:54:43,559 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 22:54:43,560 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 22:54:43,561 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 22:54:43,562 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 22:54:43,563 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 22:54:43,566 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 22:54:43,566 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 22:54:43,566 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 22:54:43,567 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 22:54:43,569 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 22:54:43,571 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 22:54:43,571 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 22:54:43,573 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 22:54:43,576 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 22:54:43,577 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 22:54:43,578 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 22:54:43,578 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 22:54:43,579 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 22:54:43,582 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 22:54:43,582 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 22:54:43,583 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 22:54:43,584 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 22:54:43,585 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 22:54:43,603 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 22:54:43,603 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 22:54:43,604 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 22:54:43,605 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 22:54:43,605 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 22:54:43,605 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 22:54:43,606 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 22:54:43,606 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 22:54:43,606 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 22:54:43,606 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 22:54:43,606 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 22:54:43,607 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 22:54:43,607 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 22:54:43,607 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 22:54:43,607 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 22:54:43,607 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 22:54:43,608 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 22:54:43,608 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 22:54:43,608 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 22:54:43,608 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 22:54:43,609 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 22:54:43,609 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 22:54:43,609 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 22:54:43,609 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 22:54:43,610 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 22:54:43,610 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 22:54:43,610 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 22:54:43,610 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 22:54:43,610 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 22:54:43,936 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 22:54:43,949 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 22:54:43,952 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 22:54:43,954 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 22:54:43,954 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 22:54:43,955 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-10-13 22:54:44,019 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5ac65bfc/4ec8ddb6a980437496e6516e4b09332f/FLAG84044680b [2019-10-13 22:54:44,787 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 22:54:44,789 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-10-13 22:54:44,817 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5ac65bfc/4ec8ddb6a980437496e6516e4b09332f/FLAG84044680b [2019-10-13 22:54:44,892 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5ac65bfc/4ec8ddb6a980437496e6516e4b09332f [2019-10-13 22:54:44,903 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 22:54:44,904 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 22:54:44,905 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 22:54:44,905 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 22:54:44,908 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 22:54:44,909 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:54:44" (1/1) ... [2019-10-13 22:54:44,911 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6113c621 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:54:44, skipping insertion in model container [2019-10-13 22:54:44,912 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:54:44" (1/1) ... [2019-10-13 22:54:44,919 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 22:54:45,024 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 22:54:46,461 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 22:54:46,480 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 22:54:46,708 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 22:54:46,859 INFO L192 MainTranslator]: Completed translation [2019-10-13 22:54:46,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:54:46 WrapperNode [2019-10-13 22:54:46,860 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 22:54:46,860 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 22:54:46,861 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 22:54:46,861 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 22:54:46,875 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:54:46" (1/1) ... [2019-10-13 22:54:46,875 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:54:46" (1/1) ... [2019-10-13 22:54:46,953 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:54:46" (1/1) ... [2019-10-13 22:54:46,954 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:54:46" (1/1) ... [2019-10-13 22:54:47,042 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:54:46" (1/1) ... [2019-10-13 22:54:47,063 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:54:46" (1/1) ... [2019-10-13 22:54:47,085 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:54:46" (1/1) ... [2019-10-13 22:54:47,111 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 22:54:47,115 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 22:54:47,115 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 22:54:47,115 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 22:54:47,116 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:54:46" (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 22:54:47,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 22:54:47,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 22:54:47,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~VOID [2019-10-13 22:54:47,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2019-10-13 22:54:47,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-10-13 22:54:47,206 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2019-10-13 22:54:47,207 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2019-10-13 22:54:47,207 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2019-10-13 22:54:47,207 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2019-10-13 22:54:47,207 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-10-13 22:54:47,207 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-10-13 22:54:47,208 INFO L138 BoogieDeclarations]: Found implementation of procedure get_capacity [2019-10-13 22:54:47,208 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2019-10-13 22:54:47,208 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-10-13 22:54:47,208 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_create_kmalloc_pool [2019-10-13 22:54:47,208 INFO L138 BoogieDeclarations]: Found implementation of procedure req_get_ioprio [2019-10-13 22:54:47,209 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_pos [2019-10-13 22:54:47,209 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_logical_block_size [2019-10-13 22:54:47,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-13 22:54:47,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-13 22:54:47,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-10-13 22:54:47,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-10-13 22:54:47,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-13 22:54:47,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-13 22:54:47,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-13 22:54:47,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-13 22:54:47,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-13 22:54:47,211 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-13 22:54:47,211 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-13 22:54:47,211 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_assign_page [2019-10-13 22:54:47,212 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_set_page [2019-10-13 22:54:47,212 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_set_buf [2019-10-13 22:54:47,212 INFO L138 BoogieDeclarations]: Found implementation of procedure virtqueue_add_buf [2019-10-13 22:54:47,212 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_has_feature [2019-10-13 22:54:47,212 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_config_buf [2019-10-13 22:54:47,212 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_find_single_vq [2019-10-13 22:54:47,213 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_done [2019-10-13 22:54:47,213 INFO L138 BoogieDeclarations]: Found implementation of procedure do_req [2019-10-13 22:54:47,213 INFO L138 BoogieDeclarations]: Found implementation of procedure do_virtblk_request [2019-10-13 22:54:47,213 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_prepare_flush [2019-10-13 22:54:47,213 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_get_id [2019-10-13 22:54:47,213 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_ioctl [2019-10-13 22:54:47,213 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_getgeo [2019-10-13 22:54:47,214 INFO L138 BoogieDeclarations]: Found implementation of procedure index_to_minor [2019-10-13 22:54:47,214 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_probe [2019-10-13 22:54:47,214 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_remove [2019-10-13 22:54:47,214 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2019-10-13 22:54:47,214 INFO L138 BoogieDeclarations]: Found implementation of procedure fini [2019-10-13 22:54:47,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_virtio_driver_1 [2019-10-13 22:54:47,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_block_device_operations_2 [2019-10-13 22:54:47,215 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 22:54:47,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2019-10-13 22:54:47,215 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-10-13 22:54:47,215 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-10-13 22:54:47,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blk_make_request_5 [2019-10-13 22:54:47,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-13 22:54:47,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-13 22:54:47,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-13 22:54:47,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-13 22:54:47,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-13 22:54:47,216 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR___0 [2019-10-13 22:54:47,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blk_get_request [2019-10-13 22:54:47,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blk_make_request [2019-10-13 22:54:47,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_blk_rq [2019-10-13 22:54:47,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-13 22:54:47,217 INFO L138 BoogieDeclarations]: Found implementation of procedure __blk_end_request_all [2019-10-13 22:54:47,217 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2019-10-13 22:54:47,217 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2019-10-13 22:54:47,217 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-10-13 22:54:47,217 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-10-13 22:54:47,218 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2019-10-13 22:54:47,218 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-10-13 22:54:47,218 INFO L138 BoogieDeclarations]: Found implementation of procedure add_disk [2019-10-13 22:54:47,218 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_disk [2019-10-13 22:54:47,218 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_map_kern [2019-10-13 22:54:47,218 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_put [2019-10-13 22:54:47,219 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_cleanup_queue [2019-10-13 22:54:47,219 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_execute_rq [2019-10-13 22:54:47,219 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_init_queue [2019-10-13 22:54:47,219 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_peek_request [2019-10-13 22:54:47,219 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_alignment_offset [2019-10-13 22:54:47,219 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_bounce_limit [2019-10-13 22:54:47,220 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_io_min [2019-10-13 22:54:47,220 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_io_opt [2019-10-13 22:54:47,220 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_logical_block_size [2019-10-13 22:54:47,220 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_hw_sectors [2019-10-13 22:54:47,220 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_segment_size [2019-10-13 22:54:47,220 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_segments [2019-10-13 22:54:47,220 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_ordered [2019-10-13 22:54:47,221 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_physical_block_size [2019-10-13 22:54:47,221 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_map_sg [2019-10-13 22:54:47,221 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_start_queue [2019-10-13 22:54:47,221 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_start_request [2019-10-13 22:54:47,221 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_stop_queue [2019-10-13 22:54:47,221 INFO L138 BoogieDeclarations]: Found implementation of procedure del_gendisk [2019-10-13 22:54:47,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-13 22:54:47,222 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2019-10-13 22:54:47,222 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_alloc [2019-10-13 22:54:47,222 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_create [2019-10-13 22:54:47,222 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_destroy [2019-10-13 22:54:47,222 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_free [2019-10-13 22:54:47,222 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-10-13 22:54:47,222 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2019-10-13 22:54:47,223 INFO L138 BoogieDeclarations]: Found implementation of procedure register_blkdev [2019-10-13 22:54:47,223 INFO L138 BoogieDeclarations]: Found implementation of procedure register_virtio_driver [2019-10-13 22:54:47,223 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_cmd_ioctl [2019-10-13 22:54:47,223 INFO L138 BoogieDeclarations]: Found implementation of procedure set_disk_ro [2019-10-13 22:54:47,223 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_init_table [2019-10-13 22:54:47,223 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2019-10-13 22:54:47,224 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_virtio_driver [2019-10-13 22:54:47,224 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_check_driver_offered_feature [2019-10-13 22:54:47,224 INFO L138 BoogieDeclarations]: Found implementation of procedure virtqueue_add_buf_gfp [2019-10-13 22:54:47,224 INFO L138 BoogieDeclarations]: Found implementation of procedure virtqueue_get_buf [2019-10-13 22:54:47,224 INFO L138 BoogieDeclarations]: Found implementation of procedure virtqueue_kick [2019-10-13 22:54:47,224 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-13 22:54:47,224 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-13 22:54:47,225 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-13 22:54:47,225 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-13 22:54:47,225 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 22:54:47,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-13 22:54:47,225 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2019-10-13 22:54:47,225 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-10-13 22:54:47,226 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-10-13 22:54:47,226 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2019-10-13 22:54:47,226 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-13 22:54:47,226 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2019-10-13 22:54:47,226 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-10-13 22:54:47,226 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-10-13 22:54:47,226 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2019-10-13 22:54:47,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 22:54:47,227 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2019-10-13 22:54:47,227 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2019-10-13 22:54:47,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 22:54:47,227 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2019-10-13 22:54:47,227 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2019-10-13 22:54:47,228 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-10-13 22:54:47,228 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2019-10-13 22:54:47,228 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-10-13 22:54:47,228 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-10-13 22:54:47,228 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-10-13 22:54:47,228 INFO L130 BoogieDeclarations]: Found specification of procedure register_blkdev [2019-10-13 22:54:47,229 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2019-10-13 22:54:47,229 INFO L130 BoogieDeclarations]: Found specification of procedure add_disk [2019-10-13 22:54:47,229 INFO L130 BoogieDeclarations]: Found specification of procedure del_gendisk [2019-10-13 22:54:47,229 INFO L130 BoogieDeclarations]: Found specification of procedure set_disk_ro [2019-10-13 22:54:47,229 INFO L130 BoogieDeclarations]: Found specification of procedure get_capacity [2019-10-13 22:54:47,229 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 22:54:47,229 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2019-10-13 22:54:47,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 22:54:47,230 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_disk [2019-10-13 22:54:47,230 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2019-10-13 22:54:47,230 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-10-13 22:54:47,230 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-10-13 22:54:47,230 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_create [2019-10-13 22:54:47,230 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_destroy [2019-10-13 22:54:47,231 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_alloc [2019-10-13 22:54:47,231 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_free [2019-10-13 22:54:47,231 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_kmalloc [2019-10-13 22:54:47,231 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_kfree [2019-10-13 22:54:47,231 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_create_kmalloc_pool [2019-10-13 22:54:47,231 INFO L130 BoogieDeclarations]: Found specification of procedure bio_put [2019-10-13 22:54:47,231 INFO L130 BoogieDeclarations]: Found specification of procedure bio_map_kern [2019-10-13 22:54:47,232 INFO L130 BoogieDeclarations]: Found specification of procedure req_get_ioprio [2019-10-13 22:54:47,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blk_make_request_5 [2019-10-13 22:54:47,232 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_cmd_ioctl [2019-10-13 22:54:47,232 INFO L130 BoogieDeclarations]: Found specification of procedure blk_start_queue [2019-10-13 22:54:47,232 INFO L130 BoogieDeclarations]: Found specification of procedure blk_stop_queue [2019-10-13 22:54:47,232 INFO L130 BoogieDeclarations]: Found specification of procedure blk_execute_rq [2019-10-13 22:54:47,232 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_pos [2019-10-13 22:54:47,232 INFO L130 BoogieDeclarations]: Found specification of procedure blk_peek_request [2019-10-13 22:54:47,233 INFO L130 BoogieDeclarations]: Found specification of procedure blk_start_request [2019-10-13 22:54:47,233 INFO L130 BoogieDeclarations]: Found specification of procedure __blk_end_request_all [2019-10-13 22:54:47,233 INFO L130 BoogieDeclarations]: Found specification of procedure blk_init_queue [2019-10-13 22:54:47,233 INFO L130 BoogieDeclarations]: Found specification of procedure blk_cleanup_queue [2019-10-13 22:54:47,233 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_bounce_limit [2019-10-13 22:54:47,233 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_hw_sectors [2019-10-13 22:54:47,233 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_segments [2019-10-13 22:54:47,234 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_segment_size [2019-10-13 22:54:47,234 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_logical_block_size [2019-10-13 22:54:47,234 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_physical_block_size [2019-10-13 22:54:47,234 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_alignment_offset [2019-10-13 22:54:47,234 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_io_min [2019-10-13 22:54:47,234 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_io_opt [2019-10-13 22:54:47,234 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_ordered [2019-10-13 22:54:47,234 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_map_sg [2019-10-13 22:54:47,235 INFO L130 BoogieDeclarations]: Found specification of procedure queue_logical_block_size [2019-10-13 22:54:47,235 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 22:54:47,235 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 22:54:47,235 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 22:54:47,235 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-13 22:54:47,235 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-13 22:54:47,235 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-13 22:54:47,236 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 22:54:47,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-13 22:54:47,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 22:54:47,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-13 22:54:47,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-13 22:54:47,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-10-13 22:54:47,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-10-13 22:54:47,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-13 22:54:47,237 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-13 22:54:47,237 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-13 22:54:47,237 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-13 22:54:47,237 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-13 22:54:47,237 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blk_make_request [2019-10-13 22:54:47,237 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-13 22:54:47,237 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-13 22:54:47,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-13 22:54:47,238 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-13 22:54:47,238 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-13 22:54:47,238 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-13 22:54:47,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_virtio_driver_1 [2019-10-13 22:54:47,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_block_device_operations_2 [2019-10-13 22:54:47,238 INFO L130 BoogieDeclarations]: Found specification of procedure sg_assign_page [2019-10-13 22:54:47,239 INFO L130 BoogieDeclarations]: Found specification of procedure sg_set_page [2019-10-13 22:54:47,239 INFO L130 BoogieDeclarations]: Found specification of procedure sg_set_buf [2019-10-13 22:54:47,239 INFO L130 BoogieDeclarations]: Found specification of procedure sg_init_table [2019-10-13 22:54:47,239 INFO L130 BoogieDeclarations]: Found specification of procedure virtqueue_add_buf_gfp [2019-10-13 22:54:47,239 INFO L130 BoogieDeclarations]: Found specification of procedure virtqueue_add_buf [2019-10-13 22:54:47,239 INFO L130 BoogieDeclarations]: Found specification of procedure virtqueue_kick [2019-10-13 22:54:47,239 INFO L130 BoogieDeclarations]: Found specification of procedure virtqueue_get_buf [2019-10-13 22:54:47,240 INFO L130 BoogieDeclarations]: Found specification of procedure register_virtio_driver [2019-10-13 22:54:47,240 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_virtio_driver [2019-10-13 22:54:47,240 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_check_driver_offered_feature [2019-10-13 22:54:47,240 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_has_feature [2019-10-13 22:54:47,240 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_config_buf [2019-10-13 22:54:47,240 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~VOID [2019-10-13 22:54:47,240 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_find_single_vq [2019-10-13 22:54:47,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 22:54:47,241 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2019-10-13 22:54:47,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 22:54:47,241 INFO L130 BoogieDeclarations]: Found specification of procedure blk_done [2019-10-13 22:54:47,241 INFO L130 BoogieDeclarations]: Found specification of procedure do_req [2019-10-13 22:54:47,241 INFO L130 BoogieDeclarations]: Found specification of procedure do_virtblk_request [2019-10-13 22:54:47,241 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_prepare_flush [2019-10-13 22:54:47,242 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_get_id [2019-10-13 22:54:47,242 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_ioctl [2019-10-13 22:54:47,242 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_getgeo [2019-10-13 22:54:47,242 INFO L130 BoogieDeclarations]: Found specification of procedure index_to_minor [2019-10-13 22:54:47,242 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_probe [2019-10-13 22:54:47,242 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-10-13 22:54:47,242 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_remove [2019-10-13 22:54:47,243 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-10-13 22:54:47,243 INFO L130 BoogieDeclarations]: Found specification of procedure fini [2019-10-13 22:54:47,243 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-13 22:54:47,243 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-13 22:54:47,243 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 22:54:47,243 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-13 22:54:47,243 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-13 22:54:47,244 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR___0 [2019-10-13 22:54:47,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blk_get_request [2019-10-13 22:54:47,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_blk_rq [2019-10-13 22:54:47,244 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-13 22:54:47,244 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 22:54:47,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 22:54:47,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 22:54:47,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 22:54:47,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 22:54:48,306 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-13 22:54:50,844 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 22:54:50,844 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-13 22:54:50,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:54:50 BoogieIcfgContainer [2019-10-13 22:54:50,846 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 22:54:50,850 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 22:54:50,851 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 22:54:50,854 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 22:54:50,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:54:44" (1/3) ... [2019-10-13 22:54:50,856 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e3adc6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:54:50, skipping insertion in model container [2019-10-13 22:54:50,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:54:46" (2/3) ... [2019-10-13 22:54:50,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e3adc6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:54:50, skipping insertion in model container [2019-10-13 22:54:50,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:54:50" (3/3) ... [2019-10-13 22:54:50,859 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 [2019-10-13 22:54:50,875 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 22:54:50,890 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 22:54:50,903 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 22:54:50,948 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 22:54:50,948 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 22:54:50,948 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 22:54:50,948 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 22:54:50,948 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 22:54:50,949 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 22:54:50,949 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 22:54:50,949 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 22:54:50,992 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states. [2019-10-13 22:54:51,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-10-13 22:54:51,007 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:54:51,008 INFO L380 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] [2019-10-13 22:54:51,011 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:54:51,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:54:51,016 INFO L82 PathProgramCache]: Analyzing trace with hash 292547117, now seen corresponding path program 1 times [2019-10-13 22:54:51,026 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:54:51,026 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001849164] [2019-10-13 22:54:51,026 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:54:51,027 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:54:51,027 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:54:51,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:54:51,590 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-10-13 22:54:51,590 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001849164] [2019-10-13 22:54:51,591 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:54:51,592 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:54:51,592 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53440011] [2019-10-13 22:54:51,597 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:54:51,598 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:54:51,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:54:51,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:54:51,616 INFO L87 Difference]: Start difference. First operand 643 states. Second operand 3 states. [2019-10-13 22:54:51,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:54:51,831 INFO L93 Difference]: Finished difference Result 1789 states and 2156 transitions. [2019-10-13 22:54:51,832 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:54:51,833 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 54 [2019-10-13 22:54:51,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:54:51,869 INFO L225 Difference]: With dead ends: 1789 [2019-10-13 22:54:51,869 INFO L226 Difference]: Without dead ends: 1152 [2019-10-13 22:54:51,883 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 22:54:51,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2019-10-13 22:54:52,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 1149. [2019-10-13 22:54:52,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1149 states. [2019-10-13 22:54:52,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1149 states to 1149 states and 1359 transitions. [2019-10-13 22:54:52,051 INFO L78 Accepts]: Start accepts. Automaton has 1149 states and 1359 transitions. Word has length 54 [2019-10-13 22:54:52,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:54:52,052 INFO L462 AbstractCegarLoop]: Abstraction has 1149 states and 1359 transitions. [2019-10-13 22:54:52,052 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:54:52,052 INFO L276 IsEmpty]: Start isEmpty. Operand 1149 states and 1359 transitions. [2019-10-13 22:54:52,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-10-13 22:54:52,057 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:54:52,057 INFO L380 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] [2019-10-13 22:54:52,057 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:54:52,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:54:52,058 INFO L82 PathProgramCache]: Analyzing trace with hash 1493337068, now seen corresponding path program 1 times [2019-10-13 22:54:52,058 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:54:52,058 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921238428] [2019-10-13 22:54:52,059 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:54:52,059 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:54:52,059 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:54:52,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:54:52,207 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-10-13 22:54:52,207 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921238428] [2019-10-13 22:54:52,208 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:54:52,208 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:54:52,208 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192580869] [2019-10-13 22:54:52,213 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:54:52,214 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:54:52,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:54:52,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:54:52,221 INFO L87 Difference]: Start difference. First operand 1149 states and 1359 transitions. Second operand 3 states. [2019-10-13 22:54:52,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:54:52,307 INFO L93 Difference]: Finished difference Result 2223 states and 2640 transitions. [2019-10-13 22:54:52,307 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:54:52,308 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 57 [2019-10-13 22:54:52,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:54:52,322 INFO L225 Difference]: With dead ends: 2223 [2019-10-13 22:54:52,322 INFO L226 Difference]: Without dead ends: 2207 [2019-10-13 22:54:52,325 INFO L600 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 [2019-10-13 22:54:52,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2207 states. [2019-10-13 22:54:52,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2207 to 2207. [2019-10-13 22:54:52,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2207 states. [2019-10-13 22:54:52,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2207 states to 2207 states and 2620 transitions. [2019-10-13 22:54:52,450 INFO L78 Accepts]: Start accepts. Automaton has 2207 states and 2620 transitions. Word has length 57 [2019-10-13 22:54:52,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:54:52,450 INFO L462 AbstractCegarLoop]: Abstraction has 2207 states and 2620 transitions. [2019-10-13 22:54:52,451 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:54:52,451 INFO L276 IsEmpty]: Start isEmpty. Operand 2207 states and 2620 transitions. [2019-10-13 22:54:52,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2019-10-13 22:54:52,466 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:54:52,467 INFO L380 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] [2019-10-13 22:54:52,467 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:54:52,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:54:52,467 INFO L82 PathProgramCache]: Analyzing trace with hash -1430438193, now seen corresponding path program 1 times [2019-10-13 22:54:52,468 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:54:52,468 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075161805] [2019-10-13 22:54:52,468 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:54:52,468 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:54:52,468 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:54:52,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:54:52,661 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-13 22:54:52,662 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075161805] [2019-10-13 22:54:52,662 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:54:52,663 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:54:52,663 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312255164] [2019-10-13 22:54:52,664 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:54:52,664 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:54:52,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:54:52,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:54:52,665 INFO L87 Difference]: Start difference. First operand 2207 states and 2620 transitions. Second operand 3 states. [2019-10-13 22:54:52,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:54:52,909 INFO L93 Difference]: Finished difference Result 6234 states and 7389 transitions. [2019-10-13 22:54:52,909 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:54:52,909 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 129 [2019-10-13 22:54:52,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:54:52,933 INFO L225 Difference]: With dead ends: 6234 [2019-10-13 22:54:52,933 INFO L226 Difference]: Without dead ends: 4048 [2019-10-13 22:54:52,941 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 22:54:52,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4048 states. [2019-10-13 22:54:53,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4048 to 4033. [2019-10-13 22:54:53,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4033 states. [2019-10-13 22:54:53,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4033 states to 4033 states and 4775 transitions. [2019-10-13 22:54:53,136 INFO L78 Accepts]: Start accepts. Automaton has 4033 states and 4775 transitions. Word has length 129 [2019-10-13 22:54:53,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:54:53,137 INFO L462 AbstractCegarLoop]: Abstraction has 4033 states and 4775 transitions. [2019-10-13 22:54:53,137 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:54:53,137 INFO L276 IsEmpty]: Start isEmpty. Operand 4033 states and 4775 transitions. [2019-10-13 22:54:53,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2019-10-13 22:54:53,146 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:54:53,146 INFO L380 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] [2019-10-13 22:54:53,146 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:54:53,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:54:53,147 INFO L82 PathProgramCache]: Analyzing trace with hash -1994225214, now seen corresponding path program 1 times [2019-10-13 22:54:53,147 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:54:53,147 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476657081] [2019-10-13 22:54:53,147 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:54:53,148 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:54:53,148 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:54:53,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:54:53,359 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 22:54:53,360 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476657081] [2019-10-13 22:54:53,361 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:54:53,361 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 22:54:53,361 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758640129] [2019-10-13 22:54:53,363 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 22:54:53,363 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:54:53,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 22:54:53,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 22:54:53,363 INFO L87 Difference]: Start difference. First operand 4033 states and 4775 transitions. Second operand 5 states. [2019-10-13 22:54:53,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:54:53,648 INFO L93 Difference]: Finished difference Result 8064 states and 9551 transitions. [2019-10-13 22:54:53,649 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 22:54:53,649 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 168 [2019-10-13 22:54:53,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:54:53,677 INFO L225 Difference]: With dead ends: 8064 [2019-10-13 22:54:53,678 INFO L226 Difference]: Without dead ends: 4048 [2019-10-13 22:54:53,690 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 22:54:53,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4048 states. [2019-10-13 22:54:53,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4048 to 4040. [2019-10-13 22:54:53,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4040 states. [2019-10-13 22:54:53,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4040 states to 4040 states and 4780 transitions. [2019-10-13 22:54:53,861 INFO L78 Accepts]: Start accepts. Automaton has 4040 states and 4780 transitions. Word has length 168 [2019-10-13 22:54:53,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:54:53,862 INFO L462 AbstractCegarLoop]: Abstraction has 4040 states and 4780 transitions. [2019-10-13 22:54:53,862 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 22:54:53,862 INFO L276 IsEmpty]: Start isEmpty. Operand 4040 states and 4780 transitions. [2019-10-13 22:54:53,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2019-10-13 22:54:53,870 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:54:53,870 INFO L380 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] [2019-10-13 22:54:53,870 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:54:53,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:54:53,871 INFO L82 PathProgramCache]: Analyzing trace with hash 1782482205, now seen corresponding path program 1 times [2019-10-13 22:54:53,871 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:54:53,871 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969914189] [2019-10-13 22:54:53,872 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:54:53,872 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:54:53,873 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:54:54,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:54:54,244 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-10-13 22:54:54,245 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969914189] [2019-10-13 22:54:54,245 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1054116461] [2019-10-13 22:54:54,245 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 22:54:54,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:54:54,925 INFO L256 TraceCheckSpWp]: Trace formula consists of 1461 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-13 22:54:54,940 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 22:54:55,054 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2019-10-13 22:54:55,055 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 22:54:55,356 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 22:54:55,392 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 22:54:55,505 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-10-13 22:54:55,506 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 22:54:55,506 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 12 [2019-10-13 22:54:55,506 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870259826] [2019-10-13 22:54:55,507 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 22:54:55,507 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:54:55,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 22:54:55,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2019-10-13 22:54:55,508 INFO L87 Difference]: Start difference. First operand 4040 states and 4780 transitions. Second operand 6 states. [2019-10-13 22:54:55,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:54:55,793 INFO L93 Difference]: Finished difference Result 8067 states and 9548 transitions. [2019-10-13 22:54:55,793 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 22:54:55,793 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 172 [2019-10-13 22:54:55,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:54:55,816 INFO L225 Difference]: With dead ends: 8067 [2019-10-13 22:54:55,816 INFO L226 Difference]: Without dead ends: 4041 [2019-10-13 22:54:55,830 INFO L600 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 [2019-10-13 22:54:55,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4041 states. [2019-10-13 22:54:55,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4041 to 4041. [2019-10-13 22:54:55,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4041 states. [2019-10-13 22:54:56,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4041 states to 4041 states and 4781 transitions. [2019-10-13 22:54:56,016 INFO L78 Accepts]: Start accepts. Automaton has 4041 states and 4781 transitions. Word has length 172 [2019-10-13 22:54:56,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:54:56,016 INFO L462 AbstractCegarLoop]: Abstraction has 4041 states and 4781 transitions. [2019-10-13 22:54:56,016 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 22:54:56,016 INFO L276 IsEmpty]: Start isEmpty. Operand 4041 states and 4781 transitions. [2019-10-13 22:54:56,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-10-13 22:54:56,024 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:54:56,025 INFO L380 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] [2019-10-13 22:54:56,241 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 22:54:56,241 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:54:56,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:54:56,242 INFO L82 PathProgramCache]: Analyzing trace with hash 722073599, now seen corresponding path program 1 times [2019-10-13 22:54:56,242 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:54:56,242 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801987358] [2019-10-13 22:54:56,242 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:54:56,243 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:54:56,243 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:54:56,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:54:56,561 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 22:54:56,561 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801987358] [2019-10-13 22:54:56,562 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [179261060] [2019-10-13 22:54:56,562 INFO L94 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 [2019-10-13 22:54:57,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:54:57,119 INFO L256 TraceCheckSpWp]: Trace formula consists of 1473 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-13 22:54:57,128 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 22:54:57,222 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 20 proven. 1 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-13 22:54:57,223 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 22:54:57,493 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 22:54:57,538 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 22:54:57,538 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 22:54:57,540 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 22:54:57,792 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 22:54:57,970 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 22:54:57,971 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2049124732] [2019-10-13 22:54:58,008 INFO L162 IcfgInterpreter]: Started Sifa with 140 locations of interest [2019-10-13 22:54:58,008 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 22:54:58,016 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 22:54:58,033 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 22:54:58,033 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-13 22:54:58,755 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-13 22:54:59,702 WARN L191 SmtUtils]: Spent 584.00 ms on a formula simplification that was a NOOP. DAG size: 450 [2019-10-13 22:55:00,052 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 510 [2019-10-13 22:55:00,219 WARN L191 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 510 [2019-10-13 22:55:00,377 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 510 [2019-10-13 22:55:00,543 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 510 [2019-10-13 22:55:00,893 WARN L191 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 512 DAG size of output: 510 [2019-10-13 22:55:01,040 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 510 [2019-10-13 22:55:01,243 WARN L191 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 510 [2019-10-13 22:55:01,431 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 510 [2019-10-13 22:55:01,593 WARN L191 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 510 [2019-10-13 22:55:01,778 WARN L191 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 510 [2019-10-13 22:55:01,791 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 133 for LOIs [2019-10-13 22:55:02,071 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 509 [2019-10-13 22:55:02,073 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 526 for LOIs [2019-10-13 22:55:02,176 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 526 [2019-10-13 22:55:02,293 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 526 [2019-10-13 22:55:02,435 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 572 [2019-10-13 22:55:02,693 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 22:55:02,850 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 596 [2019-10-13 22:55:04,295 WARN L191 SmtUtils]: Spent 473.00 ms on a formula simplification that was a NOOP. DAG size: 249 [2019-10-13 22:55:04,541 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 728 [2019-10-13 22:55:05,003 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 726 [2019-10-13 22:55:05,293 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 22:55:05,293 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:307) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:184) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:431) 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:102) 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:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:299) ... 21 more [2019-10-13 22:55:05,299 INFO L168 Benchmark]: Toolchain (without parser) took 20395.57 ms. Allocated memory was 141.6 MB in the beginning and 742.4 MB in the end (delta: 600.8 MB). Free memory was 96.9 MB in the beginning and 279.2 MB in the end (delta: -182.3 MB). Peak memory consumption was 418.5 MB. Max. memory is 7.1 GB. [2019-10-13 22:55:05,300 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 141.6 MB. Free memory was 121.3 MB in the beginning and 121.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-13 22:55:05,301 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1954.84 ms. Allocated memory was 141.6 MB in the beginning and 238.0 MB in the end (delta: 96.5 MB). Free memory was 96.7 MB in the beginning and 194.1 MB in the end (delta: -97.4 MB). Peak memory consumption was 85.1 MB. Max. memory is 7.1 GB. [2019-10-13 22:55:05,302 INFO L168 Benchmark]: Boogie Preprocessor took 253.81 ms. Allocated memory is still 238.0 MB. Free memory was 194.1 MB in the beginning and 182.1 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 7.1 GB. [2019-10-13 22:55:05,303 INFO L168 Benchmark]: RCFGBuilder took 3731.13 ms. Allocated memory was 238.0 MB in the beginning and 255.3 MB in the end (delta: 17.3 MB). Free memory was 182.1 MB in the beginning and 89.7 MB in the end (delta: 92.5 MB). Peak memory consumption was 120.5 MB. Max. memory is 7.1 GB. [2019-10-13 22:55:05,309 INFO L168 Benchmark]: TraceAbstraction took 14447.42 ms. Allocated memory was 255.3 MB in the beginning and 742.4 MB in the end (delta: 487.1 MB). Free memory was 89.7 MB in the beginning and 279.2 MB in the end (delta: -189.6 MB). Peak memory consumption was 297.5 MB. Max. memory is 7.1 GB. [2019-10-13 22:55:05,313 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 141.6 MB. Free memory was 121.3 MB in the beginning and 121.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1954.84 ms. Allocated memory was 141.6 MB in the beginning and 238.0 MB in the end (delta: 96.5 MB). Free memory was 96.7 MB in the beginning and 194.1 MB in the end (delta: -97.4 MB). Peak memory consumption was 85.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 253.81 ms. Allocated memory is still 238.0 MB. Free memory was 194.1 MB in the beginning and 182.1 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3731.13 ms. Allocated memory was 238.0 MB in the beginning and 255.3 MB in the end (delta: 17.3 MB). Free memory was 182.1 MB in the beginning and 89.7 MB in the end (delta: 92.5 MB). Peak memory consumption was 120.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 14447.42 ms. Allocated memory was 255.3 MB in the beginning and 742.4 MB in the end (delta: 487.1 MB). Free memory was 89.7 MB in the beginning and 279.2 MB in the end (delta: -189.6 MB). Peak memory consumption was 297.5 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:307) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...