/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--md--md-cluster.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 00:13:40,692 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 00:13:40,695 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 00:13:40,707 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 00:13:40,708 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 00:13:40,709 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 00:13:40,710 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 00:13:40,712 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 00:13:40,714 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 00:13:40,715 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 00:13:40,716 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 00:13:40,717 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 00:13:40,718 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 00:13:40,719 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 00:13:40,720 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 00:13:40,721 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 00:13:40,721 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 00:13:40,722 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 00:13:40,724 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 00:13:40,726 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 00:13:40,728 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 00:13:40,729 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 00:13:40,730 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 00:13:40,731 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 00:13:40,733 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 00:13:40,734 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 00:13:40,734 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 00:13:40,735 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 00:13:40,736 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 00:13:40,739 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2019-11-07 00:13:40,747 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 00:13:40,751 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 00:13:40,752 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 00:13:40,754 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-07 00:13:40,784 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 00:13:40,785 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 00:13:40,787 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 00:13:40,787 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 00:13:40,788 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 00:13:40,788 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 00:13:40,788 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 00:13:40,788 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 00:13:40,788 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 00:13:40,789 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 00:13:40,790 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 00:13:40,790 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 00:13:40,790 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 00:13:40,791 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 00:13:40,791 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 00:13:40,791 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 00:13:40,791 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 00:13:40,792 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 00:13:40,792 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 00:13:40,792 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 00:13:40,792 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 00:13:40,793 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:13:40,793 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 00:13:40,793 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 00:13:40,793 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 00:13:40,793 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 00:13:40,794 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 00:13:40,794 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 00:13:40,794 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-11-07 00:13:41,072 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 00:13:41,089 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 00:13:41,093 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 00:13:41,095 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 00:13:41,096 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 00:13:41,096 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--md--md-cluster.ko-entry_point.cil.out.i [2019-11-07 00:13:41,172 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d969c9358/9e835fde62cd4aae8a1ebcaf7d06e416/FLAG07e7b99af [2019-11-07 00:13:41,966 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 00:13:41,966 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--md--md-cluster.ko-entry_point.cil.out.i [2019-11-07 00:13:42,005 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d969c9358/9e835fde62cd4aae8a1ebcaf7d06e416/FLAG07e7b99af [2019-11-07 00:13:42,038 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d969c9358/9e835fde62cd4aae8a1ebcaf7d06e416 [2019-11-07 00:13:42,047 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 00:13:42,049 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 00:13:42,050 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 00:13:42,050 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 00:13:42,053 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 00:13:42,054 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:13:42" (1/1) ... [2019-11-07 00:13:42,057 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13d202f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:13:42, skipping insertion in model container [2019-11-07 00:13:42,058 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:13:42" (1/1) ... [2019-11-07 00:13:42,065 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 00:13:42,181 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 00:13:43,930 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:13:43,958 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 00:13:44,398 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:13:44,562 INFO L192 MainTranslator]: Completed translation [2019-11-07 00:13:44,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:13:44 WrapperNode [2019-11-07 00:13:44,562 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 00:13:44,563 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 00:13:44,564 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 00:13:44,564 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 00:13:44,581 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:13:44" (1/1) ... [2019-11-07 00:13:44,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:13:44" (1/1) ... [2019-11-07 00:13:44,632 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:13:44" (1/1) ... [2019-11-07 00:13:44,633 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:13:44" (1/1) ... [2019-11-07 00:13:44,730 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:13:44" (1/1) ... [2019-11-07 00:13:44,759 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:13:44" (1/1) ... [2019-11-07 00:13:44,778 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:13:44" (1/1) ... [2019-11-07 00:13:44,820 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 00:13:44,821 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 00:13:44,821 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 00:13:44,821 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 00:13:44,822 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:13:44" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:13:44,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 00:13:44,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 00:13:44,938 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2019-11-07 00:13:44,938 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2019-11-07 00:13:44,939 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2019-11-07 00:13:44,940 INFO L138 BoogieDeclarations]: Found implementation of procedure fls64 [2019-11-07 00:13:44,941 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2019-11-07 00:13:44,941 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2019-11-07 00:13:44,941 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2019-11-07 00:13:44,942 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-11-07 00:13:44,942 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2019-11-07 00:13:44,942 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2019-11-07 00:13:44,942 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2019-11-07 00:13:44,943 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-11-07 00:13:44,943 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-11-07 00:13:44,943 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-11-07 00:13:44,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-07 00:13:44,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-07 00:13:44,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-11-07 00:13:44,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-11-07 00:13:44,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-11-07 00:13:44,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-11-07 00:13:44,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-11-07 00:13:44,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-11-07 00:13:44,947 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2019-11-07 00:13:44,948 INFO L138 BoogieDeclarations]: Found implementation of procedure mdname [2019-11-07 00:13:44,948 INFO L138 BoogieDeclarations]: Found implementation of procedure sync_ast [2019-11-07 00:13:44,948 INFO L138 BoogieDeclarations]: Found implementation of procedure dlm_lock_sync [2019-11-07 00:13:44,949 INFO L138 BoogieDeclarations]: Found implementation of procedure dlm_unlock_sync [2019-11-07 00:13:44,949 INFO L138 BoogieDeclarations]: Found implementation of procedure lockres_init [2019-11-07 00:13:44,949 INFO L138 BoogieDeclarations]: Found implementation of procedure lockres_free [2019-11-07 00:13:44,950 INFO L138 BoogieDeclarations]: Found implementation of procedure pretty_uuid [2019-11-07 00:13:44,950 INFO L138 BoogieDeclarations]: Found implementation of procedure add_resync_info [2019-11-07 00:13:44,950 INFO L138 BoogieDeclarations]: Found implementation of procedure read_resync_info [2019-11-07 00:13:44,950 INFO L138 BoogieDeclarations]: Found implementation of procedure recover_bitmaps [2019-11-07 00:13:44,950 INFO L138 BoogieDeclarations]: Found implementation of procedure recover_prep [2019-11-07 00:13:44,951 INFO L138 BoogieDeclarations]: Found implementation of procedure recover_slot [2019-11-07 00:13:44,951 INFO L138 BoogieDeclarations]: Found implementation of procedure recover_done [2019-11-07 00:13:44,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ack_bast [2019-11-07 00:13:44,951 INFO L138 BoogieDeclarations]: Found implementation of procedure __remove_suspend_info [2019-11-07 00:13:44,951 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_suspend_info [2019-11-07 00:13:44,951 INFO L138 BoogieDeclarations]: Found implementation of procedure process_suspend_info [2019-11-07 00:13:44,951 INFO L138 BoogieDeclarations]: Found implementation of procedure process_add_new_disk [2019-11-07 00:13:44,952 INFO L138 BoogieDeclarations]: Found implementation of procedure process_metadata_update [2019-11-07 00:13:44,952 INFO L138 BoogieDeclarations]: Found implementation of procedure process_remove_disk [2019-11-07 00:13:44,952 INFO L138 BoogieDeclarations]: Found implementation of procedure process_readd_disk [2019-11-07 00:13:44,952 INFO L138 BoogieDeclarations]: Found implementation of procedure process_recvd_msg [2019-11-07 00:13:44,952 INFO L138 BoogieDeclarations]: Found implementation of procedure recv_daemon [2019-11-07 00:13:44,952 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_comm [2019-11-07 00:13:44,952 INFO L138 BoogieDeclarations]: Found implementation of procedure unlock_comm [2019-11-07 00:13:44,953 INFO L138 BoogieDeclarations]: Found implementation of procedure __sendmsg [2019-11-07 00:13:44,953 INFO L138 BoogieDeclarations]: Found implementation of procedure sendmsg [2019-11-07 00:13:44,953 INFO L138 BoogieDeclarations]: Found implementation of procedure gather_all_resync_info [2019-11-07 00:13:44,953 INFO L138 BoogieDeclarations]: Found implementation of procedure join [2019-11-07 00:13:44,953 INFO L138 BoogieDeclarations]: Found implementation of procedure leave [2019-11-07 00:13:44,953 INFO L138 BoogieDeclarations]: Found implementation of procedure slot_number [2019-11-07 00:13:44,953 INFO L138 BoogieDeclarations]: Found implementation of procedure resync_info_update [2019-11-07 00:13:44,954 INFO L138 BoogieDeclarations]: Found implementation of procedure metadata_update_start [2019-11-07 00:13:44,954 INFO L138 BoogieDeclarations]: Found implementation of procedure metadata_update_finish [2019-11-07 00:13:44,954 INFO L138 BoogieDeclarations]: Found implementation of procedure metadata_update_cancel [2019-11-07 00:13:44,954 INFO L138 BoogieDeclarations]: Found implementation of procedure resync_send [2019-11-07 00:13:44,954 INFO L138 BoogieDeclarations]: Found implementation of procedure resync_start [2019-11-07 00:13:44,955 INFO L138 BoogieDeclarations]: Found implementation of procedure resync_finish [2019-11-07 00:13:44,955 INFO L138 BoogieDeclarations]: Found implementation of procedure area_resyncing [2019-11-07 00:13:44,955 INFO L138 BoogieDeclarations]: Found implementation of procedure add_new_disk_start [2019-11-07 00:13:44,955 INFO L138 BoogieDeclarations]: Found implementation of procedure add_new_disk_finish [2019-11-07 00:13:44,955 INFO L138 BoogieDeclarations]: Found implementation of procedure new_disk_ack [2019-11-07 00:13:44,956 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_disk [2019-11-07 00:13:44,956 INFO L138 BoogieDeclarations]: Found implementation of procedure gather_bitmaps [2019-11-07 00:13:44,956 INFO L138 BoogieDeclarations]: Found implementation of procedure cluster_init [2019-11-07 00:13:44,956 INFO L138 BoogieDeclarations]: Found implementation of procedure cluster_exit [2019-11-07 00:13:44,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_dlm_lockspace_ops_2 [2019-11-07 00:13:44,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_md_cluster_operations_1 [2019-11-07 00:13:44,957 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 00:13:44,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_5 [2019-11-07 00:13:44,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_6 [2019-11-07 00:13:44,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-11-07 00:13:44,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-11-07 00:13:44,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-11-07 00:13:44,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-11-07 00:13:44,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-11-07 00:13:44,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_get [2019-11-07 00:13:44,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2019-11-07 00:13:44,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2019-11-07 00:13:44,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_and_exit [2019-11-07 00:13:44,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_refcount [2019-11-07 00:13:44,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-11-07 00:13:44,961 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-11-07 00:13:44,961 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2019-11-07 00:13:44,962 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2019-11-07 00:13:44,962 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-11-07 00:13:44,962 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irq [2019-11-07 00:13:44,962 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irq [2019-11-07 00:13:44,962 INFO L138 BoogieDeclarations]: Found implementation of procedure bitmap_copy_from_slot [2019-11-07 00:13:44,963 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2019-11-07 00:13:44,963 INFO L138 BoogieDeclarations]: Found implementation of procedure dlm_lock [2019-11-07 00:13:44,963 INFO L138 BoogieDeclarations]: Found implementation of procedure dlm_new_lockspace [2019-11-07 00:13:44,963 INFO L138 BoogieDeclarations]: Found implementation of procedure dlm_release_lockspace [2019-11-07 00:13:44,963 INFO L138 BoogieDeclarations]: Found implementation of procedure dlm_unlock [2019-11-07 00:13:44,963 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_uevent_env [2019-11-07 00:13:44,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-11-07 00:13:44,964 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2019-11-07 00:13:44,964 INFO L138 BoogieDeclarations]: Found implementation of procedure md_check_recovery [2019-11-07 00:13:44,964 INFO L138 BoogieDeclarations]: Found implementation of procedure md_find_rdev_nr_rcu [2019-11-07 00:13:44,964 INFO L138 BoogieDeclarations]: Found implementation of procedure md_kick_rdev_from_array [2019-11-07 00:13:44,964 INFO L138 BoogieDeclarations]: Found implementation of procedure md_register_thread [2019-11-07 00:13:44,964 INFO L138 BoogieDeclarations]: Found implementation of procedure md_reload_sb [2019-11-07 00:13:44,965 INFO L138 BoogieDeclarations]: Found implementation of procedure md_unregister_thread [2019-11-07 00:13:44,965 INFO L138 BoogieDeclarations]: Found implementation of procedure md_update_sb [2019-11-07 00:13:44,965 INFO L138 BoogieDeclarations]: Found implementation of procedure md_wakeup_thread [2019-11-07 00:13:44,965 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-11-07 00:13:44,965 INFO L138 BoogieDeclarations]: Found implementation of procedure register_md_cluster_operations [2019-11-07 00:13:44,965 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2019-11-07 00:13:44,965 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_md_cluster_operations [2019-11-07 00:13:44,965 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2019-11-07 00:13:44,966 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_timeout [2019-11-07 00:13:44,966 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-11-07 00:13:44,966 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-11-07 00:13:44,966 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-07 00:13:44,967 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-07 00:13:44,967 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-07 00:13:44,967 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2019-11-07 00:13:44,968 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 00:13:44,968 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2019-11-07 00:13:44,969 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2019-11-07 00:13:44,969 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2019-11-07 00:13:44,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 00:13:44,969 INFO L130 BoogieDeclarations]: Found specification of procedure fls64 [2019-11-07 00:13:44,969 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-11-07 00:13:44,969 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-11-07 00:13:44,970 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2019-11-07 00:13:44,970 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2019-11-07 00:13:44,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 00:13:44,971 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2019-11-07 00:13:44,971 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2019-11-07 00:13:44,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 00:13:44,972 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2019-11-07 00:13:44,975 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2019-11-07 00:13:44,976 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-07 00:13:44,976 INFO L130 BoogieDeclarations]: Found specification of procedure memmove [2019-11-07 00:13:44,977 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-07 00:13:44,977 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2019-11-07 00:13:44,977 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2019-11-07 00:13:44,978 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-11-07 00:13:44,985 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irq [2019-11-07 00:13:44,985 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irq [2019-11-07 00:13:44,985 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-11-07 00:13:44,985 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2019-11-07 00:13:44,985 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2019-11-07 00:13:44,986 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-11-07 00:13:44,987 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2019-11-07 00:13:44,987 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2019-11-07 00:13:44,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 00:13:44,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 00:13:44,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 00:13:44,987 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2019-11-07 00:13:44,988 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_timeout [2019-11-07 00:13:44,989 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2019-11-07 00:13:44,989 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_uevent_env [2019-11-07 00:13:44,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_5 [2019-11-07 00:13:44,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_6 [2019-11-07 00:13:44,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2019-11-07 00:13:44,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2019-11-07 00:13:44,990 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-07 00:13:44,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-07 00:13:44,990 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-11-07 00:13:44,990 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-11-07 00:13:44,990 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-11-07 00:13:44,991 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 00:13:44,991 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-07 00:13:44,991 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 00:13:44,991 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-11-07 00:13:44,991 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-07 00:13:44,991 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-11-07 00:13:44,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 00:13:44,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-07 00:13:44,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-07 00:13:44,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-11-07 00:13:44,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-11-07 00:13:44,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-07 00:13:44,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-11-07 00:13:44,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-11-07 00:13:44,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-11-07 00:13:44,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-11-07 00:13:44,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_dlm_lockspace_ops_2 [2019-11-07 00:13:44,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_md_cluster_operations_1 [2019-11-07 00:13:44,993 INFO L130 BoogieDeclarations]: Found specification of procedure dlm_new_lockspace [2019-11-07 00:13:44,993 INFO L130 BoogieDeclarations]: Found specification of procedure dlm_release_lockspace [2019-11-07 00:13:44,993 INFO L130 BoogieDeclarations]: Found specification of procedure dlm_lock [2019-11-07 00:13:44,993 INFO L130 BoogieDeclarations]: Found specification of procedure dlm_unlock [2019-11-07 00:13:44,994 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2019-11-07 00:13:44,995 INFO L130 BoogieDeclarations]: Found specification of procedure mdname [2019-11-07 00:13:44,995 INFO L130 BoogieDeclarations]: Found specification of procedure register_md_cluster_operations [2019-11-07 00:13:44,995 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_md_cluster_operations [2019-11-07 00:13:44,995 INFO L130 BoogieDeclarations]: Found specification of procedure md_register_thread [2019-11-07 00:13:44,995 INFO L130 BoogieDeclarations]: Found specification of procedure md_unregister_thread [2019-11-07 00:13:44,995 INFO L130 BoogieDeclarations]: Found specification of procedure md_wakeup_thread [2019-11-07 00:13:44,995 INFO L130 BoogieDeclarations]: Found specification of procedure md_check_recovery [2019-11-07 00:13:44,996 INFO L130 BoogieDeclarations]: Found specification of procedure md_reload_sb [2019-11-07 00:13:44,996 INFO L130 BoogieDeclarations]: Found specification of procedure md_update_sb [2019-11-07 00:13:44,996 INFO L130 BoogieDeclarations]: Found specification of procedure md_kick_rdev_from_array [2019-11-07 00:13:44,996 INFO L130 BoogieDeclarations]: Found specification of procedure md_find_rdev_nr_rcu [2019-11-07 00:13:44,996 INFO L130 BoogieDeclarations]: Found specification of procedure bitmap_copy_from_slot [2019-11-07 00:13:44,996 INFO L130 BoogieDeclarations]: Found specification of procedure sync_ast [2019-11-07 00:13:44,996 INFO L130 BoogieDeclarations]: Found specification of procedure dlm_lock_sync [2019-11-07 00:13:44,996 INFO L130 BoogieDeclarations]: Found specification of procedure dlm_unlock_sync [2019-11-07 00:13:44,997 INFO L130 BoogieDeclarations]: Found specification of procedure lockres_init [2019-11-07 00:13:44,997 INFO L130 BoogieDeclarations]: Found specification of procedure lockres_free [2019-11-07 00:13:44,997 INFO L130 BoogieDeclarations]: Found specification of procedure pretty_uuid [2019-11-07 00:13:44,997 INFO L130 BoogieDeclarations]: Found specification of procedure add_resync_info [2019-11-07 00:13:44,997 INFO L130 BoogieDeclarations]: Found specification of procedure read_resync_info [2019-11-07 00:13:44,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-07 00:13:44,997 INFO L130 BoogieDeclarations]: Found specification of procedure recover_bitmaps [2019-11-07 00:13:44,997 INFO L130 BoogieDeclarations]: Found specification of procedure recover_prep [2019-11-07 00:13:44,998 INFO L130 BoogieDeclarations]: Found specification of procedure recover_slot [2019-11-07 00:13:44,998 INFO L130 BoogieDeclarations]: Found specification of procedure recover_done [2019-11-07 00:13:44,998 INFO L130 BoogieDeclarations]: Found specification of procedure ack_bast [2019-11-07 00:13:44,998 INFO L130 BoogieDeclarations]: Found specification of procedure __remove_suspend_info [2019-11-07 00:13:44,998 INFO L130 BoogieDeclarations]: Found specification of procedure remove_suspend_info [2019-11-07 00:13:44,998 INFO L130 BoogieDeclarations]: Found specification of procedure process_suspend_info [2019-11-07 00:13:44,998 INFO L130 BoogieDeclarations]: Found specification of procedure process_add_new_disk [2019-11-07 00:13:44,999 INFO L130 BoogieDeclarations]: Found specification of procedure process_metadata_update [2019-11-07 00:13:44,999 INFO L130 BoogieDeclarations]: Found specification of procedure process_remove_disk [2019-11-07 00:13:44,999 INFO L130 BoogieDeclarations]: Found specification of procedure process_readd_disk [2019-11-07 00:13:44,999 INFO L130 BoogieDeclarations]: Found specification of procedure process_recvd_msg [2019-11-07 00:13:44,999 INFO L130 BoogieDeclarations]: Found specification of procedure recv_daemon [2019-11-07 00:13:44,999 INFO L130 BoogieDeclarations]: Found specification of procedure lock_comm [2019-11-07 00:13:44,999 INFO L130 BoogieDeclarations]: Found specification of procedure unlock_comm [2019-11-07 00:13:44,999 INFO L130 BoogieDeclarations]: Found specification of procedure __sendmsg [2019-11-07 00:13:45,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2019-11-07 00:13:45,000 INFO L130 BoogieDeclarations]: Found specification of procedure sendmsg [2019-11-07 00:13:45,000 INFO L130 BoogieDeclarations]: Found specification of procedure gather_all_resync_info [2019-11-07 00:13:45,000 INFO L130 BoogieDeclarations]: Found specification of procedure join [2019-11-07 00:13:45,000 INFO L130 BoogieDeclarations]: Found specification of procedure leave [2019-11-07 00:13:45,000 INFO L130 BoogieDeclarations]: Found specification of procedure slot_number [2019-11-07 00:13:45,000 INFO L130 BoogieDeclarations]: Found specification of procedure resync_info_update [2019-11-07 00:13:45,001 INFO L130 BoogieDeclarations]: Found specification of procedure metadata_update_start [2019-11-07 00:13:45,001 INFO L130 BoogieDeclarations]: Found specification of procedure metadata_update_finish [2019-11-07 00:13:45,001 INFO L130 BoogieDeclarations]: Found specification of procedure metadata_update_cancel [2019-11-07 00:13:45,001 INFO L130 BoogieDeclarations]: Found specification of procedure resync_send [2019-11-07 00:13:45,001 INFO L130 BoogieDeclarations]: Found specification of procedure resync_start [2019-11-07 00:13:45,001 INFO L130 BoogieDeclarations]: Found specification of procedure resync_finish [2019-11-07 00:13:45,001 INFO L130 BoogieDeclarations]: Found specification of procedure area_resyncing [2019-11-07 00:13:45,001 INFO L130 BoogieDeclarations]: Found specification of procedure add_new_disk_start [2019-11-07 00:13:45,002 INFO L130 BoogieDeclarations]: Found specification of procedure add_new_disk_finish [2019-11-07 00:13:45,002 INFO L130 BoogieDeclarations]: Found specification of procedure new_disk_ack [2019-11-07 00:13:45,002 INFO L130 BoogieDeclarations]: Found specification of procedure remove_disk [2019-11-07 00:13:45,002 INFO L130 BoogieDeclarations]: Found specification of procedure gather_bitmaps [2019-11-07 00:13:45,002 INFO L130 BoogieDeclarations]: Found specification of procedure cluster_init [2019-11-07 00:13:45,002 INFO L130 BoogieDeclarations]: Found specification of procedure cluster_exit [2019-11-07 00:13:45,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-11-07 00:13:45,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-11-07 00:13:45,003 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 00:13:45,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-11-07 00:13:45,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-11-07 00:13:45,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-11-07 00:13:45,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-11-07 00:13:45,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-11-07 00:13:45,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_get [2019-11-07 00:13:45,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_and_exit [2019-11-07 00:13:45,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_refcount [2019-11-07 00:13:45,004 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-11-07 00:13:45,004 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 00:13:45,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 00:13:45,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 00:13:45,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-07 00:13:45,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 00:13:45,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-07 00:13:45,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-07 00:13:45,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-11-07 00:13:45,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-11-07 00:13:45,875 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-11-07 00:13:49,791 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_module_put_and_exitFINAL: assume true; [2019-11-07 00:13:50,255 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 00:13:50,255 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-11-07 00:13:50,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:13:50 BoogieIcfgContainer [2019-11-07 00:13:50,259 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 00:13:50,260 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 00:13:50,260 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 00:13:50,263 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 00:13:50,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:13:42" (1/3) ... [2019-11-07 00:13:50,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fc0b5b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:13:50, skipping insertion in model container [2019-11-07 00:13:50,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:13:44" (2/3) ... [2019-11-07 00:13:50,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fc0b5b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:13:50, skipping insertion in model container [2019-11-07 00:13:50,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:13:50" (3/3) ... [2019-11-07 00:13:50,266 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--md--md-cluster.ko-entry_point.cil.out.i [2019-11-07 00:13:50,276 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 00:13:50,285 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 00:13:50,296 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 00:13:50,328 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 00:13:50,328 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 00:13:50,328 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 00:13:50,328 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 00:13:50,328 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 00:13:50,329 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 00:13:50,329 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 00:13:50,329 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 00:13:50,364 INFO L276 IsEmpty]: Start isEmpty. Operand 923 states. [2019-11-07 00:13:50,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2019-11-07 00:13:50,381 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:13:50,382 INFO L410 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:13:50,384 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:13:50,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:13:50,390 INFO L82 PathProgramCache]: Analyzing trace with hash 567779153, now seen corresponding path program 1 times [2019-11-07 00:13:50,400 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:13:50,400 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335797541] [2019-11-07 00:13:50,400 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:13:50,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:13:51,264 INFO L134 CoverageAnalysis]: Checked inductivity of 519 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2019-11-07 00:13:51,265 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335797541] [2019-11-07 00:13:51,266 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:13:51,266 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:13:51,267 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179181864] [2019-11-07 00:13:51,272 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:13:51,274 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:13:51,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:13:51,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:13:51,292 INFO L87 Difference]: Start difference. First operand 923 states. Second operand 3 states. [2019-11-07 00:13:52,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:13:52,243 INFO L93 Difference]: Finished difference Result 2124 states and 2734 transitions. [2019-11-07 00:13:52,246 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:13:52,247 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 179 [2019-11-07 00:13:52,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:13:52,293 INFO L225 Difference]: With dead ends: 2124 [2019-11-07 00:13:52,293 INFO L226 Difference]: Without dead ends: 1394 [2019-11-07 00:13:52,304 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:13:52,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2019-11-07 00:13:52,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1391. [2019-11-07 00:13:52,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1391 states. [2019-11-07 00:13:52,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1391 states to 1391 states and 1782 transitions. [2019-11-07 00:13:52,489 INFO L78 Accepts]: Start accepts. Automaton has 1391 states and 1782 transitions. Word has length 179 [2019-11-07 00:13:52,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:13:52,492 INFO L462 AbstractCegarLoop]: Abstraction has 1391 states and 1782 transitions. [2019-11-07 00:13:52,492 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:13:52,493 INFO L276 IsEmpty]: Start isEmpty. Operand 1391 states and 1782 transitions. [2019-11-07 00:13:52,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2019-11-07 00:13:52,509 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:13:52,511 INFO L410 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:13:52,512 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:13:52,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:13:52,512 INFO L82 PathProgramCache]: Analyzing trace with hash -2075241796, now seen corresponding path program 1 times [2019-11-07 00:13:52,512 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:13:52,512 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154691411] [2019-11-07 00:13:52,513 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:13:52,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:13:52,773 INFO L134 CoverageAnalysis]: Checked inductivity of 519 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2019-11-07 00:13:52,774 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154691411] [2019-11-07 00:13:52,774 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:13:52,774 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 00:13:52,775 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708987635] [2019-11-07 00:13:52,776 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 00:13:52,777 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:13:52,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 00:13:52,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 00:13:52,777 INFO L87 Difference]: Start difference. First operand 1391 states and 1782 transitions. Second operand 5 states. [2019-11-07 00:13:52,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:13:52,981 INFO L93 Difference]: Finished difference Result 2739 states and 3506 transitions. [2019-11-07 00:13:52,982 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-07 00:13:52,982 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 183 [2019-11-07 00:13:52,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:13:52,993 INFO L225 Difference]: With dead ends: 2739 [2019-11-07 00:13:52,993 INFO L226 Difference]: Without dead ends: 1390 [2019-11-07 00:13:53,000 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-11-07 00:13:53,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1390 states. [2019-11-07 00:13:53,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1390 to 1390. [2019-11-07 00:13:53,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1390 states. [2019-11-07 00:13:53,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1390 states to 1390 states and 1778 transitions. [2019-11-07 00:13:53,077 INFO L78 Accepts]: Start accepts. Automaton has 1390 states and 1778 transitions. Word has length 183 [2019-11-07 00:13:53,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:13:53,078 INFO L462 AbstractCegarLoop]: Abstraction has 1390 states and 1778 transitions. [2019-11-07 00:13:53,078 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 00:13:53,078 INFO L276 IsEmpty]: Start isEmpty. Operand 1390 states and 1778 transitions. [2019-11-07 00:13:53,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2019-11-07 00:13:53,084 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:13:53,084 INFO L410 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 6, 6, 6, 6, 6, 6, 6, 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] [2019-11-07 00:13:53,085 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:13:53,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:13:53,085 INFO L82 PathProgramCache]: Analyzing trace with hash 1043952797, now seen corresponding path program 1 times [2019-11-07 00:13:53,085 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:13:53,086 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18237882] [2019-11-07 00:13:53,086 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:13:53,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:13:53,551 INFO L134 CoverageAnalysis]: Checked inductivity of 620 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 620 trivial. 0 not checked. [2019-11-07 00:13:53,552 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18237882] [2019-11-07 00:13:53,552 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:13:53,552 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:13:53,552 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115385631] [2019-11-07 00:13:53,555 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:13:53,555 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:13:53,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:13:53,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:13:53,558 INFO L87 Difference]: Start difference. First operand 1390 states and 1778 transitions. Second operand 3 states. [2019-11-07 00:13:53,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:13:53,719 INFO L93 Difference]: Finished difference Result 4083 states and 5231 transitions. [2019-11-07 00:13:53,719 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:13:53,719 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 237 [2019-11-07 00:13:53,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:13:53,742 INFO L225 Difference]: With dead ends: 4083 [2019-11-07 00:13:53,742 INFO L226 Difference]: Without dead ends: 2724 [2019-11-07 00:13:53,749 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:13:53,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2724 states. [2019-11-07 00:13:53,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2724 to 2720. [2019-11-07 00:13:53,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2720 states. [2019-11-07 00:13:53,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2720 states to 2720 states and 3486 transitions. [2019-11-07 00:13:53,886 INFO L78 Accepts]: Start accepts. Automaton has 2720 states and 3486 transitions. Word has length 237 [2019-11-07 00:13:53,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:13:53,888 INFO L462 AbstractCegarLoop]: Abstraction has 2720 states and 3486 transitions. [2019-11-07 00:13:53,888 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:13:53,888 INFO L276 IsEmpty]: Start isEmpty. Operand 2720 states and 3486 transitions. [2019-11-07 00:13:53,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2019-11-07 00:13:53,900 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:13:53,901 INFO L410 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 6, 6, 6, 6, 6, 6, 6, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:13:53,901 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:13:53,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:13:53,902 INFO L82 PathProgramCache]: Analyzing trace with hash 280562274, now seen corresponding path program 1 times [2019-11-07 00:13:53,902 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:13:53,902 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466616745] [2019-11-07 00:13:53,902 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:13:54,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:13:54,289 INFO L134 CoverageAnalysis]: Checked inductivity of 624 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 617 trivial. 0 not checked. [2019-11-07 00:13:54,290 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466616745] [2019-11-07 00:13:54,290 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:13:54,290 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:13:54,290 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060785145] [2019-11-07 00:13:54,291 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:13:54,291 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:13:54,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:13:54,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:13:54,292 INFO L87 Difference]: Start difference. First operand 2720 states and 3486 transitions. Second operand 3 states. [2019-11-07 00:13:54,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:13:54,457 INFO L93 Difference]: Finished difference Result 5410 states and 6940 transitions. [2019-11-07 00:13:54,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:13:54,457 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 275 [2019-11-07 00:13:54,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:13:54,480 INFO L225 Difference]: With dead ends: 5410 [2019-11-07 00:13:54,480 INFO L226 Difference]: Without dead ends: 2732 [2019-11-07 00:13:54,498 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:13:54,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2732 states. [2019-11-07 00:13:54,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2732 to 2724. [2019-11-07 00:13:54,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2724 states. [2019-11-07 00:13:54,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2724 states to 2724 states and 3490 transitions. [2019-11-07 00:13:54,668 INFO L78 Accepts]: Start accepts. Automaton has 2724 states and 3490 transitions. Word has length 275 [2019-11-07 00:13:54,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:13:54,669 INFO L462 AbstractCegarLoop]: Abstraction has 2724 states and 3490 transitions. [2019-11-07 00:13:54,669 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:13:54,669 INFO L276 IsEmpty]: Start isEmpty. Operand 2724 states and 3490 transitions. [2019-11-07 00:13:54,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2019-11-07 00:13:54,684 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:13:54,684 INFO L410 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 6, 6, 6, 6, 6, 6, 6, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:13:54,684 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:13:54,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:13:54,685 INFO L82 PathProgramCache]: Analyzing trace with hash 146548768, now seen corresponding path program 1 times [2019-11-07 00:13:54,685 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:13:54,686 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560677834] [2019-11-07 00:13:54,687 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:13:55,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:13:55,429 INFO L134 CoverageAnalysis]: Checked inductivity of 624 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 615 trivial. 0 not checked. [2019-11-07 00:13:55,429 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560677834] [2019-11-07 00:13:55,430 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1311123106] [2019-11-07 00:13:55,430 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 [2019-11-07 00:14:05,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:14:05,168 INFO L256 TraceCheckSpWp]: Trace formula consists of 2751 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-07 00:14:05,188 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 00:14:05,358 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 00:14:05,462 INFO L134 CoverageAnalysis]: Checked inductivity of 624 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 617 trivial. 0 not checked. [2019-11-07 00:14:05,462 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 00:14:05,679 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 00:14:06,022 INFO L134 CoverageAnalysis]: Checked inductivity of 624 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 617 trivial. 0 not checked. [2019-11-07 00:14:06,023 INFO L218 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-11-07 00:14:06,023 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [8] total 14 [2019-11-07 00:14:06,024 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54044240] [2019-11-07 00:14:06,025 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-07 00:14:06,025 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:14:06,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-07 00:14:06,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2019-11-07 00:14:06,026 INFO L87 Difference]: Start difference. First operand 2724 states and 3490 transitions. Second operand 10 states. [2019-11-07 00:14:06,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:14:06,380 INFO L93 Difference]: Finished difference Result 4552 states and 5968 transitions. [2019-11-07 00:14:06,380 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-07 00:14:06,380 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 275 [2019-11-07 00:14:06,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:14:06,411 INFO L225 Difference]: With dead ends: 4552 [2019-11-07 00:14:06,411 INFO L226 Difference]: Without dead ends: 3202 [2019-11-07 00:14:06,423 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 560 GetRequests, 544 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2019-11-07 00:14:06,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3202 states. [2019-11-07 00:14:06,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3202 to 2894. [2019-11-07 00:14:06,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2894 states. [2019-11-07 00:14:06,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2894 states to 2894 states and 3750 transitions. [2019-11-07 00:14:06,604 INFO L78 Accepts]: Start accepts. Automaton has 2894 states and 3750 transitions. Word has length 275 [2019-11-07 00:14:06,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:14:06,605 INFO L462 AbstractCegarLoop]: Abstraction has 2894 states and 3750 transitions. [2019-11-07 00:14:06,605 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-07 00:14:06,605 INFO L276 IsEmpty]: Start isEmpty. Operand 2894 states and 3750 transitions. [2019-11-07 00:14:06,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2019-11-07 00:14:06,619 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:14:06,619 INFO L410 BasicCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:14:06,833 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:14:06,833 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:14:06,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:14:06,834 INFO L82 PathProgramCache]: Analyzing trace with hash 1943812348, now seen corresponding path program 1 times [2019-11-07 00:14:06,834 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:14:06,835 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572234565] [2019-11-07 00:14:06,835 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:14:06,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:14:07,164 INFO L134 CoverageAnalysis]: Checked inductivity of 623 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 623 trivial. 0 not checked. [2019-11-07 00:14:07,164 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572234565] [2019-11-07 00:14:07,165 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:14:07,165 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:14:07,165 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979410445] [2019-11-07 00:14:07,167 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:14:07,167 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:14:07,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:14:07,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:14:07,171 INFO L87 Difference]: Start difference. First operand 2894 states and 3750 transitions. Second operand 3 states. [2019-11-07 00:14:07,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:14:07,460 INFO L93 Difference]: Finished difference Result 4628 states and 5958 transitions. [2019-11-07 00:14:07,460 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:14:07,460 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 294 [2019-11-07 00:14:07,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:14:07,477 INFO L225 Difference]: With dead ends: 4628 [2019-11-07 00:14:07,478 INFO L226 Difference]: Without dead ends: 1776 [2019-11-07 00:14:07,502 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:14:07,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1776 states. [2019-11-07 00:14:07,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1776 to 1760. [2019-11-07 00:14:07,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1760 states. [2019-11-07 00:14:07,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1760 states to 1760 states and 2246 transitions. [2019-11-07 00:14:07,623 INFO L78 Accepts]: Start accepts. Automaton has 1760 states and 2246 transitions. Word has length 294 [2019-11-07 00:14:07,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:14:07,624 INFO L462 AbstractCegarLoop]: Abstraction has 1760 states and 2246 transitions. [2019-11-07 00:14:07,624 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:14:07,624 INFO L276 IsEmpty]: Start isEmpty. Operand 1760 states and 2246 transitions. [2019-11-07 00:14:07,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2019-11-07 00:14:07,638 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:14:07,638 INFO L410 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 6, 6, 6, 6, 6, 6, 6, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:14:07,639 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:14:07,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:14:07,639 INFO L82 PathProgramCache]: Analyzing trace with hash 1496748682, now seen corresponding path program 1 times [2019-11-07 00:14:07,640 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:14:07,640 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876603740] [2019-11-07 00:14:07,640 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:14:08,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:14:08,780 INFO L134 CoverageAnalysis]: Checked inductivity of 624 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 554 trivial. 0 not checked. [2019-11-07 00:14:08,780 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876603740] [2019-11-07 00:14:08,780 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [805244828] [2019-11-07 00:14:08,780 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