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-f4eb214f-m [2019-10-13 20:54:26,390 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 20:54:26,393 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 20:54:26,411 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 20:54:26,411 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 20:54:26,413 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 20:54:26,415 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 20:54:26,425 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 20:54:26,429 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 20:54:26,433 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 20:54:26,434 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 20:54:26,436 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 20:54:26,436 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 20:54:26,438 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 20:54:26,441 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 20:54:26,442 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 20:54:26,444 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 20:54:26,445 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 20:54:26,446 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 20:54:26,451 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 20:54:26,455 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 20:54:26,458 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 20:54:26,461 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 20:54:26,462 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 20:54:26,464 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 20:54:26,465 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 20:54:26,465 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 20:54:26,467 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 20:54:26,468 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 20:54:26,469 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 20:54:26,470 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 20:54:26,470 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 20:54:26,471 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 20:54:26,472 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 20:54:26,473 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 20:54:26,474 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 20:54:26,474 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 20:54:26,474 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 20:54:26,475 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 20:54:26,475 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 20:54:26,477 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 20:54:26,478 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 20:54:26,511 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 20:54:26,512 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 20:54:26,515 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 20:54:26,515 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 20:54:26,516 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 20:54:26,516 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 20:54:26,516 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 20:54:26,516 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 20:54:26,516 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 20:54:26,517 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 20:54:26,517 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 20:54:26,517 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 20:54:26,517 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 20:54:26,517 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 20:54:26,517 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 20:54:26,518 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 20:54:26,518 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 20:54:26,518 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 20:54:26,518 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 20:54:26,518 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 20:54:26,519 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 20:54:26,519 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 20:54:26,519 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 20:54:26,519 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 20:54:26,519 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 20:54:26,520 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 20:54:26,520 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 20:54:26,520 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 20:54:26,520 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 [2019-10-13 20:54:26,790 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 20:54:26,807 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 20:54:26,813 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 20:54:26,814 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 20:54:26,815 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 20:54:26,816 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--md--md-cluster.ko-entry_point.cil.out.i [2019-10-13 20:54:26,884 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e0c8fd51/787ae98c80cc4eb882ffcb582a5026e6/FLAG5e5c45388 [2019-10-13 20:54:27,684 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 20:54:27,685 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--md--md-cluster.ko-entry_point.cil.out.i [2019-10-13 20:54:27,723 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e0c8fd51/787ae98c80cc4eb882ffcb582a5026e6/FLAG5e5c45388 [2019-10-13 20:54:27,787 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e0c8fd51/787ae98c80cc4eb882ffcb582a5026e6 [2019-10-13 20:54:27,798 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 20:54:27,799 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 20:54:27,800 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 20:54:27,801 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 20:54:27,805 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 20:54:27,805 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:54:27" (1/1) ... [2019-10-13 20:54:27,808 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a972dc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:54:27, skipping insertion in model container [2019-10-13 20:54:27,808 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:54:27" (1/1) ... [2019-10-13 20:54:27,814 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 20:54:27,950 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 20:54:29,504 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 20:54:29,533 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 20:54:30,059 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 20:54:30,288 INFO L192 MainTranslator]: Completed translation [2019-10-13 20:54:30,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:54:30 WrapperNode [2019-10-13 20:54:30,289 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 20:54:30,289 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 20:54:30,290 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 20:54:30,290 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 20:54:30,304 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:54:30" (1/1) ... [2019-10-13 20:54:30,304 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:54:30" (1/1) ... [2019-10-13 20:54:30,382 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:54:30" (1/1) ... [2019-10-13 20:54:30,385 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:54:30" (1/1) ... [2019-10-13 20:54:30,488 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:54:30" (1/1) ... [2019-10-13 20:54:30,518 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:54:30" (1/1) ... [2019-10-13 20:54:30,548 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:54:30" (1/1) ... [2019-10-13 20:54:30,611 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 20:54:30,611 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 20:54:30,612 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 20:54:30,612 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 20:54:30,615 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:54:30" (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 20:54:30,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 20:54:30,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 20:54:30,687 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2019-10-13 20:54:30,687 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2019-10-13 20:54:30,687 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2019-10-13 20:54:30,687 INFO L138 BoogieDeclarations]: Found implementation of procedure fls64 [2019-10-13 20:54:30,687 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2019-10-13 20:54:30,688 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2019-10-13 20:54:30,688 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2019-10-13 20:54:30,688 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-10-13 20:54:30,688 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2019-10-13 20:54:30,688 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2019-10-13 20:54:30,689 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2019-10-13 20:54:30,689 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-13 20:54:30,689 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-13 20:54:30,689 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-13 20:54:30,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-13 20:54:30,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-13 20:54:30,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-10-13 20:54:30,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-10-13 20:54:30,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-13 20:54:30,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-13 20:54:30,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-13 20:54:30,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-13 20:54:30,695 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2019-10-13 20:54:30,695 INFO L138 BoogieDeclarations]: Found implementation of procedure mdname [2019-10-13 20:54:30,695 INFO L138 BoogieDeclarations]: Found implementation of procedure sync_ast [2019-10-13 20:54:30,695 INFO L138 BoogieDeclarations]: Found implementation of procedure dlm_lock_sync [2019-10-13 20:54:30,695 INFO L138 BoogieDeclarations]: Found implementation of procedure dlm_unlock_sync [2019-10-13 20:54:30,695 INFO L138 BoogieDeclarations]: Found implementation of procedure lockres_init [2019-10-13 20:54:30,695 INFO L138 BoogieDeclarations]: Found implementation of procedure lockres_free [2019-10-13 20:54:30,696 INFO L138 BoogieDeclarations]: Found implementation of procedure pretty_uuid [2019-10-13 20:54:30,696 INFO L138 BoogieDeclarations]: Found implementation of procedure add_resync_info [2019-10-13 20:54:30,696 INFO L138 BoogieDeclarations]: Found implementation of procedure read_resync_info [2019-10-13 20:54:30,696 INFO L138 BoogieDeclarations]: Found implementation of procedure recover_bitmaps [2019-10-13 20:54:30,696 INFO L138 BoogieDeclarations]: Found implementation of procedure recover_prep [2019-10-13 20:54:30,697 INFO L138 BoogieDeclarations]: Found implementation of procedure recover_slot [2019-10-13 20:54:30,697 INFO L138 BoogieDeclarations]: Found implementation of procedure recover_done [2019-10-13 20:54:30,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ack_bast [2019-10-13 20:54:30,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __remove_suspend_info [2019-10-13 20:54:30,697 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_suspend_info [2019-10-13 20:54:30,697 INFO L138 BoogieDeclarations]: Found implementation of procedure process_suspend_info [2019-10-13 20:54:30,698 INFO L138 BoogieDeclarations]: Found implementation of procedure process_add_new_disk [2019-10-13 20:54:30,698 INFO L138 BoogieDeclarations]: Found implementation of procedure process_metadata_update [2019-10-13 20:54:30,698 INFO L138 BoogieDeclarations]: Found implementation of procedure process_remove_disk [2019-10-13 20:54:30,698 INFO L138 BoogieDeclarations]: Found implementation of procedure process_readd_disk [2019-10-13 20:54:30,698 INFO L138 BoogieDeclarations]: Found implementation of procedure process_recvd_msg [2019-10-13 20:54:30,698 INFO L138 BoogieDeclarations]: Found implementation of procedure recv_daemon [2019-10-13 20:54:30,699 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_comm [2019-10-13 20:54:30,699 INFO L138 BoogieDeclarations]: Found implementation of procedure unlock_comm [2019-10-13 20:54:30,699 INFO L138 BoogieDeclarations]: Found implementation of procedure __sendmsg [2019-10-13 20:54:30,699 INFO L138 BoogieDeclarations]: Found implementation of procedure sendmsg [2019-10-13 20:54:30,699 INFO L138 BoogieDeclarations]: Found implementation of procedure gather_all_resync_info [2019-10-13 20:54:30,699 INFO L138 BoogieDeclarations]: Found implementation of procedure join [2019-10-13 20:54:30,699 INFO L138 BoogieDeclarations]: Found implementation of procedure leave [2019-10-13 20:54:30,700 INFO L138 BoogieDeclarations]: Found implementation of procedure slot_number [2019-10-13 20:54:30,700 INFO L138 BoogieDeclarations]: Found implementation of procedure resync_info_update [2019-10-13 20:54:30,700 INFO L138 BoogieDeclarations]: Found implementation of procedure metadata_update_start [2019-10-13 20:54:30,700 INFO L138 BoogieDeclarations]: Found implementation of procedure metadata_update_finish [2019-10-13 20:54:30,700 INFO L138 BoogieDeclarations]: Found implementation of procedure metadata_update_cancel [2019-10-13 20:54:30,701 INFO L138 BoogieDeclarations]: Found implementation of procedure resync_send [2019-10-13 20:54:30,701 INFO L138 BoogieDeclarations]: Found implementation of procedure resync_start [2019-10-13 20:54:30,701 INFO L138 BoogieDeclarations]: Found implementation of procedure resync_finish [2019-10-13 20:54:30,701 INFO L138 BoogieDeclarations]: Found implementation of procedure area_resyncing [2019-10-13 20:54:30,701 INFO L138 BoogieDeclarations]: Found implementation of procedure add_new_disk_start [2019-10-13 20:54:30,702 INFO L138 BoogieDeclarations]: Found implementation of procedure add_new_disk_finish [2019-10-13 20:54:30,702 INFO L138 BoogieDeclarations]: Found implementation of procedure new_disk_ack [2019-10-13 20:54:30,702 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_disk [2019-10-13 20:54:30,702 INFO L138 BoogieDeclarations]: Found implementation of procedure gather_bitmaps [2019-10-13 20:54:30,702 INFO L138 BoogieDeclarations]: Found implementation of procedure cluster_init [2019-10-13 20:54:30,702 INFO L138 BoogieDeclarations]: Found implementation of procedure cluster_exit [2019-10-13 20:54:30,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_dlm_lockspace_ops_2 [2019-10-13 20:54:30,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_md_cluster_operations_1 [2019-10-13 20:54:30,704 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 20:54:30,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_5 [2019-10-13 20:54:30,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_6 [2019-10-13 20:54:30,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-13 20:54:30,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-13 20:54:30,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-13 20:54:30,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-13 20:54:30,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-13 20:54:30,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_get [2019-10-13 20:54:30,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2019-10-13 20:54:30,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2019-10-13 20:54:30,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_and_exit [2019-10-13 20:54:30,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_refcount [2019-10-13 20:54:30,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-13 20:54:30,708 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-10-13 20:54:30,709 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2019-10-13 20:54:30,709 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2019-10-13 20:54:30,709 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-10-13 20:54:30,709 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irq [2019-10-13 20:54:30,709 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irq [2019-10-13 20:54:30,710 INFO L138 BoogieDeclarations]: Found implementation of procedure bitmap_copy_from_slot [2019-10-13 20:54:30,710 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2019-10-13 20:54:30,710 INFO L138 BoogieDeclarations]: Found implementation of procedure dlm_lock [2019-10-13 20:54:30,710 INFO L138 BoogieDeclarations]: Found implementation of procedure dlm_new_lockspace [2019-10-13 20:54:30,710 INFO L138 BoogieDeclarations]: Found implementation of procedure dlm_release_lockspace [2019-10-13 20:54:30,710 INFO L138 BoogieDeclarations]: Found implementation of procedure dlm_unlock [2019-10-13 20:54:30,711 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_uevent_env [2019-10-13 20:54:30,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-13 20:54:30,711 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2019-10-13 20:54:30,711 INFO L138 BoogieDeclarations]: Found implementation of procedure md_check_recovery [2019-10-13 20:54:30,711 INFO L138 BoogieDeclarations]: Found implementation of procedure md_find_rdev_nr_rcu [2019-10-13 20:54:30,711 INFO L138 BoogieDeclarations]: Found implementation of procedure md_kick_rdev_from_array [2019-10-13 20:54:30,711 INFO L138 BoogieDeclarations]: Found implementation of procedure md_register_thread [2019-10-13 20:54:30,712 INFO L138 BoogieDeclarations]: Found implementation of procedure md_reload_sb [2019-10-13 20:54:30,712 INFO L138 BoogieDeclarations]: Found implementation of procedure md_unregister_thread [2019-10-13 20:54:30,712 INFO L138 BoogieDeclarations]: Found implementation of procedure md_update_sb [2019-10-13 20:54:30,712 INFO L138 BoogieDeclarations]: Found implementation of procedure md_wakeup_thread [2019-10-13 20:54:30,712 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-13 20:54:30,712 INFO L138 BoogieDeclarations]: Found implementation of procedure register_md_cluster_operations [2019-10-13 20:54:30,712 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2019-10-13 20:54:30,713 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_md_cluster_operations [2019-10-13 20:54:30,713 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2019-10-13 20:54:30,713 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_timeout [2019-10-13 20:54:30,713 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-13 20:54:30,713 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-13 20:54:30,714 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-13 20:54:30,714 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-13 20:54:30,714 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-13 20:54:30,714 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2019-10-13 20:54:30,714 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 20:54:30,715 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2019-10-13 20:54:30,715 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2019-10-13 20:54:30,715 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2019-10-13 20:54:30,716 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 20:54:30,716 INFO L130 BoogieDeclarations]: Found specification of procedure fls64 [2019-10-13 20:54:30,716 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-13 20:54:30,716 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-10-13 20:54:30,716 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2019-10-13 20:54:30,716 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2019-10-13 20:54:30,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 20:54:30,717 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2019-10-13 20:54:30,717 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2019-10-13 20:54:30,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 20:54:30,718 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2019-10-13 20:54:30,721 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2019-10-13 20:54:30,721 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-13 20:54:30,721 INFO L130 BoogieDeclarations]: Found specification of procedure memmove [2019-10-13 20:54:30,721 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-13 20:54:30,721 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2019-10-13 20:54:30,721 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2019-10-13 20:54:30,721 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-10-13 20:54:30,729 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irq [2019-10-13 20:54:30,729 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irq [2019-10-13 20:54:30,729 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-10-13 20:54:30,730 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2019-10-13 20:54:30,730 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2019-10-13 20:54:30,730 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-10-13 20:54:30,730 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2019-10-13 20:54:30,730 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2019-10-13 20:54:30,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 20:54:30,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 20:54:30,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 20:54:30,731 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2019-10-13 20:54:30,731 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_timeout [2019-10-13 20:54:30,731 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2019-10-13 20:54:30,731 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_uevent_env [2019-10-13 20:54:30,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_5 [2019-10-13 20:54:30,732 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_6 [2019-10-13 20:54:30,732 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2019-10-13 20:54:30,732 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2019-10-13 20:54:30,732 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-13 20:54:30,732 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-13 20:54:30,732 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-13 20:54:30,732 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-13 20:54:30,733 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-13 20:54:30,733 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 20:54:30,733 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 20:54:30,733 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 20:54:30,733 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-13 20:54:30,733 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-13 20:54:30,733 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 20:54:30,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 20:54:30,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-13 20:54:30,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-13 20:54:30,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-10-13 20:54:30,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-10-13 20:54:30,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-13 20:54:30,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-13 20:54:30,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-13 20:54:30,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-13 20:54:30,735 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-13 20:54:30,735 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_dlm_lockspace_ops_2 [2019-10-13 20:54:30,735 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_md_cluster_operations_1 [2019-10-13 20:54:30,735 INFO L130 BoogieDeclarations]: Found specification of procedure dlm_new_lockspace [2019-10-13 20:54:30,735 INFO L130 BoogieDeclarations]: Found specification of procedure dlm_release_lockspace [2019-10-13 20:54:30,735 INFO L130 BoogieDeclarations]: Found specification of procedure dlm_lock [2019-10-13 20:54:30,735 INFO L130 BoogieDeclarations]: Found specification of procedure dlm_unlock [2019-10-13 20:54:30,735 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2019-10-13 20:54:30,736 INFO L130 BoogieDeclarations]: Found specification of procedure mdname [2019-10-13 20:54:30,736 INFO L130 BoogieDeclarations]: Found specification of procedure register_md_cluster_operations [2019-10-13 20:54:30,736 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_md_cluster_operations [2019-10-13 20:54:30,736 INFO L130 BoogieDeclarations]: Found specification of procedure md_register_thread [2019-10-13 20:54:30,736 INFO L130 BoogieDeclarations]: Found specification of procedure md_unregister_thread [2019-10-13 20:54:30,736 INFO L130 BoogieDeclarations]: Found specification of procedure md_wakeup_thread [2019-10-13 20:54:30,736 INFO L130 BoogieDeclarations]: Found specification of procedure md_check_recovery [2019-10-13 20:54:30,736 INFO L130 BoogieDeclarations]: Found specification of procedure md_reload_sb [2019-10-13 20:54:30,737 INFO L130 BoogieDeclarations]: Found specification of procedure md_update_sb [2019-10-13 20:54:30,737 INFO L130 BoogieDeclarations]: Found specification of procedure md_kick_rdev_from_array [2019-10-13 20:54:30,737 INFO L130 BoogieDeclarations]: Found specification of procedure md_find_rdev_nr_rcu [2019-10-13 20:54:30,737 INFO L130 BoogieDeclarations]: Found specification of procedure bitmap_copy_from_slot [2019-10-13 20:54:30,737 INFO L130 BoogieDeclarations]: Found specification of procedure sync_ast [2019-10-13 20:54:30,738 INFO L130 BoogieDeclarations]: Found specification of procedure dlm_lock_sync [2019-10-13 20:54:30,738 INFO L130 BoogieDeclarations]: Found specification of procedure dlm_unlock_sync [2019-10-13 20:54:30,738 INFO L130 BoogieDeclarations]: Found specification of procedure lockres_init [2019-10-13 20:54:30,738 INFO L130 BoogieDeclarations]: Found specification of procedure lockres_free [2019-10-13 20:54:30,739 INFO L130 BoogieDeclarations]: Found specification of procedure pretty_uuid [2019-10-13 20:54:30,739 INFO L130 BoogieDeclarations]: Found specification of procedure add_resync_info [2019-10-13 20:54:30,740 INFO L130 BoogieDeclarations]: Found specification of procedure read_resync_info [2019-10-13 20:54:30,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-13 20:54:30,740 INFO L130 BoogieDeclarations]: Found specification of procedure recover_bitmaps [2019-10-13 20:54:30,740 INFO L130 BoogieDeclarations]: Found specification of procedure recover_prep [2019-10-13 20:54:30,740 INFO L130 BoogieDeclarations]: Found specification of procedure recover_slot [2019-10-13 20:54:30,740 INFO L130 BoogieDeclarations]: Found specification of procedure recover_done [2019-10-13 20:54:30,740 INFO L130 BoogieDeclarations]: Found specification of procedure ack_bast [2019-10-13 20:54:30,740 INFO L130 BoogieDeclarations]: Found specification of procedure __remove_suspend_info [2019-10-13 20:54:30,741 INFO L130 BoogieDeclarations]: Found specification of procedure remove_suspend_info [2019-10-13 20:54:30,741 INFO L130 BoogieDeclarations]: Found specification of procedure process_suspend_info [2019-10-13 20:54:30,741 INFO L130 BoogieDeclarations]: Found specification of procedure process_add_new_disk [2019-10-13 20:54:30,741 INFO L130 BoogieDeclarations]: Found specification of procedure process_metadata_update [2019-10-13 20:54:30,741 INFO L130 BoogieDeclarations]: Found specification of procedure process_remove_disk [2019-10-13 20:54:30,741 INFO L130 BoogieDeclarations]: Found specification of procedure process_readd_disk [2019-10-13 20:54:30,741 INFO L130 BoogieDeclarations]: Found specification of procedure process_recvd_msg [2019-10-13 20:54:30,741 INFO L130 BoogieDeclarations]: Found specification of procedure recv_daemon [2019-10-13 20:54:30,741 INFO L130 BoogieDeclarations]: Found specification of procedure lock_comm [2019-10-13 20:54:30,742 INFO L130 BoogieDeclarations]: Found specification of procedure unlock_comm [2019-10-13 20:54:30,742 INFO L130 BoogieDeclarations]: Found specification of procedure __sendmsg [2019-10-13 20:54:30,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2019-10-13 20:54:30,742 INFO L130 BoogieDeclarations]: Found specification of procedure sendmsg [2019-10-13 20:54:30,742 INFO L130 BoogieDeclarations]: Found specification of procedure gather_all_resync_info [2019-10-13 20:54:30,742 INFO L130 BoogieDeclarations]: Found specification of procedure join [2019-10-13 20:54:30,742 INFO L130 BoogieDeclarations]: Found specification of procedure leave [2019-10-13 20:54:30,742 INFO L130 BoogieDeclarations]: Found specification of procedure slot_number [2019-10-13 20:54:30,743 INFO L130 BoogieDeclarations]: Found specification of procedure resync_info_update [2019-10-13 20:54:30,743 INFO L130 BoogieDeclarations]: Found specification of procedure metadata_update_start [2019-10-13 20:54:30,743 INFO L130 BoogieDeclarations]: Found specification of procedure metadata_update_finish [2019-10-13 20:54:30,743 INFO L130 BoogieDeclarations]: Found specification of procedure metadata_update_cancel [2019-10-13 20:54:30,743 INFO L130 BoogieDeclarations]: Found specification of procedure resync_send [2019-10-13 20:54:30,743 INFO L130 BoogieDeclarations]: Found specification of procedure resync_start [2019-10-13 20:54:30,743 INFO L130 BoogieDeclarations]: Found specification of procedure resync_finish [2019-10-13 20:54:30,743 INFO L130 BoogieDeclarations]: Found specification of procedure area_resyncing [2019-10-13 20:54:30,744 INFO L130 BoogieDeclarations]: Found specification of procedure add_new_disk_start [2019-10-13 20:54:30,744 INFO L130 BoogieDeclarations]: Found specification of procedure add_new_disk_finish [2019-10-13 20:54:30,744 INFO L130 BoogieDeclarations]: Found specification of procedure new_disk_ack [2019-10-13 20:54:30,744 INFO L130 BoogieDeclarations]: Found specification of procedure remove_disk [2019-10-13 20:54:30,745 INFO L130 BoogieDeclarations]: Found specification of procedure gather_bitmaps [2019-10-13 20:54:30,745 INFO L130 BoogieDeclarations]: Found specification of procedure cluster_init [2019-10-13 20:54:30,745 INFO L130 BoogieDeclarations]: Found specification of procedure cluster_exit [2019-10-13 20:54:30,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-13 20:54:30,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-13 20:54:30,746 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 20:54:30,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-13 20:54:30,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-13 20:54:30,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-13 20:54:30,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-13 20:54:30,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-13 20:54:30,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_get [2019-10-13 20:54:30,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_and_exit [2019-10-13 20:54:30,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_refcount [2019-10-13 20:54:30,747 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-13 20:54:30,748 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 20:54:30,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 20:54:30,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 20:54:30,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 20:54:30,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 20:54:30,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-13 20:54:30,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-13 20:54:30,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-13 20:54:30,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-13 20:54:31,904 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-13 20:54:35,500 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_module_put_and_exitFINAL: assume true; [2019-10-13 20:54:35,944 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 20:54:35,944 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-13 20:54:35,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:54:35 BoogieIcfgContainer [2019-10-13 20:54:35,947 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 20:54:35,948 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 20:54:35,948 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 20:54:35,951 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 20:54:35,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 08:54:27" (1/3) ... [2019-10-13 20:54:35,952 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f21f6a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:54:35, skipping insertion in model container [2019-10-13 20:54:35,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:54:30" (2/3) ... [2019-10-13 20:54:35,953 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f21f6a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:54:35, skipping insertion in model container [2019-10-13 20:54:35,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:54:35" (3/3) ... [2019-10-13 20:54:35,957 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--md--md-cluster.ko-entry_point.cil.out.i [2019-10-13 20:54:35,968 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 20:54:35,980 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 20:54:35,993 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 20:54:36,028 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 20:54:36,028 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 20:54:36,028 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 20:54:36,028 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 20:54:36,028 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 20:54:36,029 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 20:54:36,029 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 20:54:36,029 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 20:54:36,068 INFO L276 IsEmpty]: Start isEmpty. Operand 923 states. [2019-10-13 20:54:36,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2019-10-13 20:54:36,085 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:54:36,086 INFO L380 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] [2019-10-13 20:54:36,089 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:54:36,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:54:36,095 INFO L82 PathProgramCache]: Analyzing trace with hash 567779153, now seen corresponding path program 1 times [2019-10-13 20:54:36,105 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:54:36,105 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824793439] [2019-10-13 20:54:36,105 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:54:36,105 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:54:36,106 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:54:36,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:54:37,050 INFO L134 CoverageAnalysis]: Checked inductivity of 519 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2019-10-13 20:54:37,051 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824793439] [2019-10-13 20:54:37,052 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:54:37,052 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:54:37,052 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996750657] [2019-10-13 20:54:37,057 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:54:37,059 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:54:37,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:54:37,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:54:37,078 INFO L87 Difference]: Start difference. First operand 923 states. Second operand 3 states. [2019-10-13 20:54:38,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:54:38,533 INFO L93 Difference]: Finished difference Result 2124 states and 2734 transitions. [2019-10-13 20:54:38,534 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:54:38,535 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 179 [2019-10-13 20:54:38,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:54:38,577 INFO L225 Difference]: With dead ends: 2124 [2019-10-13 20:54:38,580 INFO L226 Difference]: Without dead ends: 1394 [2019-10-13 20:54:38,595 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 20:54:38,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2019-10-13 20:54:38,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1391. [2019-10-13 20:54:38,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1391 states. [2019-10-13 20:54:38,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1391 states to 1391 states and 1782 transitions. [2019-10-13 20:54:38,866 INFO L78 Accepts]: Start accepts. Automaton has 1391 states and 1782 transitions. Word has length 179 [2019-10-13 20:54:38,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:54:38,868 INFO L462 AbstractCegarLoop]: Abstraction has 1391 states and 1782 transitions. [2019-10-13 20:54:38,868 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:54:38,868 INFO L276 IsEmpty]: Start isEmpty. Operand 1391 states and 1782 transitions. [2019-10-13 20:54:38,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2019-10-13 20:54:38,873 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:54:38,874 INFO L380 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] [2019-10-13 20:54:38,874 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:54:38,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:54:38,874 INFO L82 PathProgramCache]: Analyzing trace with hash -2075241796, now seen corresponding path program 1 times [2019-10-13 20:54:38,875 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:54:38,875 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467116131] [2019-10-13 20:54:38,875 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:54:38,875 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:54:38,875 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:54:38,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:54:39,251 INFO L134 CoverageAnalysis]: Checked inductivity of 519 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2019-10-13 20:54:39,252 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467116131] [2019-10-13 20:54:39,252 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:54:39,252 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 20:54:39,253 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700127554] [2019-10-13 20:54:39,256 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 20:54:39,256 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:54:39,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 20:54:39,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 20:54:39,257 INFO L87 Difference]: Start difference. First operand 1391 states and 1782 transitions. Second operand 5 states. [2019-10-13 20:54:39,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:54:39,579 INFO L93 Difference]: Finished difference Result 2739 states and 3506 transitions. [2019-10-13 20:54:39,579 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 20:54:39,579 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 183 [2019-10-13 20:54:39,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:54:39,597 INFO L225 Difference]: With dead ends: 2739 [2019-10-13 20:54:39,597 INFO L226 Difference]: Without dead ends: 1390 [2019-10-13 20:54:39,605 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-13 20:54:39,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1390 states. [2019-10-13 20:54:39,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1390 to 1390. [2019-10-13 20:54:39,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1390 states. [2019-10-13 20:54:39,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1390 states to 1390 states and 1778 transitions. [2019-10-13 20:54:39,693 INFO L78 Accepts]: Start accepts. Automaton has 1390 states and 1778 transitions. Word has length 183 [2019-10-13 20:54:39,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:54:39,695 INFO L462 AbstractCegarLoop]: Abstraction has 1390 states and 1778 transitions. [2019-10-13 20:54:39,695 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 20:54:39,695 INFO L276 IsEmpty]: Start isEmpty. Operand 1390 states and 1778 transitions. [2019-10-13 20:54:39,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2019-10-13 20:54:39,710 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:54:39,710 INFO L380 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] [2019-10-13 20:54:39,710 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:54:39,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:54:39,711 INFO L82 PathProgramCache]: Analyzing trace with hash 1043952797, now seen corresponding path program 1 times [2019-10-13 20:54:39,711 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:54:39,711 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653709012] [2019-10-13 20:54:39,711 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:54:39,712 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:54:39,712 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:54:39,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:54:40,220 INFO L134 CoverageAnalysis]: Checked inductivity of 620 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 620 trivial. 0 not checked. [2019-10-13 20:54:40,220 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653709012] [2019-10-13 20:54:40,221 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:54:40,221 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:54:40,222 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239482372] [2019-10-13 20:54:40,224 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:54:40,224 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:54:40,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:54:40,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:54:40,225 INFO L87 Difference]: Start difference. First operand 1390 states and 1778 transitions. Second operand 3 states. [2019-10-13 20:54:40,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:54:40,355 INFO L93 Difference]: Finished difference Result 4083 states and 5231 transitions. [2019-10-13 20:54:40,355 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:54:40,355 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 237 [2019-10-13 20:54:40,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:54:40,375 INFO L225 Difference]: With dead ends: 4083 [2019-10-13 20:54:40,376 INFO L226 Difference]: Without dead ends: 2724 [2019-10-13 20:54:40,383 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 20:54:40,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2724 states. [2019-10-13 20:54:40,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2724 to 2720. [2019-10-13 20:54:40,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2720 states. [2019-10-13 20:54:40,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2720 states to 2720 states and 3486 transitions. [2019-10-13 20:54:40,532 INFO L78 Accepts]: Start accepts. Automaton has 2720 states and 3486 transitions. Word has length 237 [2019-10-13 20:54:40,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:54:40,534 INFO L462 AbstractCegarLoop]: Abstraction has 2720 states and 3486 transitions. [2019-10-13 20:54:40,534 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:54:40,534 INFO L276 IsEmpty]: Start isEmpty. Operand 2720 states and 3486 transitions. [2019-10-13 20:54:40,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2019-10-13 20:54:40,546 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:54:40,547 INFO L380 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] [2019-10-13 20:54:40,547 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:54:40,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:54:40,548 INFO L82 PathProgramCache]: Analyzing trace with hash 280562274, now seen corresponding path program 1 times [2019-10-13 20:54:40,548 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:54:40,548 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581658497] [2019-10-13 20:54:40,548 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:54:40,548 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:54:40,549 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:54:40,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:54:41,014 INFO L134 CoverageAnalysis]: Checked inductivity of 624 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 617 trivial. 0 not checked. [2019-10-13 20:54:41,015 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581658497] [2019-10-13 20:54:41,016 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:54:41,016 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:54:41,016 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531933508] [2019-10-13 20:54:41,017 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:54:41,018 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:54:41,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:54:41,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:54:41,020 INFO L87 Difference]: Start difference. First operand 2720 states and 3486 transitions. Second operand 3 states. [2019-10-13 20:54:41,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:54:41,198 INFO L93 Difference]: Finished difference Result 5410 states and 6940 transitions. [2019-10-13 20:54:41,198 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:54:41,199 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 275 [2019-10-13 20:54:41,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:54:41,224 INFO L225 Difference]: With dead ends: 5410 [2019-10-13 20:54:41,224 INFO L226 Difference]: Without dead ends: 2732 [2019-10-13 20:54:41,241 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 20:54:41,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2732 states. [2019-10-13 20:54:41,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2732 to 2724. [2019-10-13 20:54:41,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2724 states. [2019-10-13 20:54:41,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2724 states to 2724 states and 3490 transitions. [2019-10-13 20:54:41,384 INFO L78 Accepts]: Start accepts. Automaton has 2724 states and 3490 transitions. Word has length 275 [2019-10-13 20:54:41,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:54:41,385 INFO L462 AbstractCegarLoop]: Abstraction has 2724 states and 3490 transitions. [2019-10-13 20:54:41,385 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:54:41,385 INFO L276 IsEmpty]: Start isEmpty. Operand 2724 states and 3490 transitions. [2019-10-13 20:54:41,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2019-10-13 20:54:41,397 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:54:41,398 INFO L380 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] [2019-10-13 20:54:41,398 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:54:41,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:54:41,398 INFO L82 PathProgramCache]: Analyzing trace with hash 146548768, now seen corresponding path program 1 times [2019-10-13 20:54:41,399 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:54:41,400 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7191261] [2019-10-13 20:54:41,400 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:54:41,400 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:54:41,401 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:54:41,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:54:42,108 WARN L191 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 3 [2019-10-13 20:54:42,216 INFO L134 CoverageAnalysis]: Checked inductivity of 624 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 615 trivial. 0 not checked. [2019-10-13 20:54:42,216 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7191261] [2019-10-13 20:54:42,217 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1326310303] [2019-10-13 20:54:42,217 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 20:54:51,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:54:51,542 INFO L256 TraceCheckSpWp]: Trace formula consists of 2751 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-13 20:54:51,567 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 20:54:51,651 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 20:54:51,742 INFO L134 CoverageAnalysis]: Checked inductivity of 624 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 617 trivial. 0 not checked. [2019-10-13 20:54:51,743 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 20:54:51,938 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 20:54:52,218 INFO L134 CoverageAnalysis]: Checked inductivity of 624 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 617 trivial. 0 not checked. [2019-10-13 20:54:52,218 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-13 20:54:52,219 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [8] total 14 [2019-10-13 20:54:52,219 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932109673] [2019-10-13 20:54:52,220 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 20:54:52,220 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:54:52,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 20:54:52,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2019-10-13 20:54:52,221 INFO L87 Difference]: Start difference. First operand 2724 states and 3490 transitions. Second operand 10 states. [2019-10-13 20:54:52,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:54:52,472 INFO L93 Difference]: Finished difference Result 4552 states and 5968 transitions. [2019-10-13 20:54:52,473 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 20:54:52,473 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 275 [2019-10-13 20:54:52,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:54:52,498 INFO L225 Difference]: With dead ends: 4552 [2019-10-13 20:54:52,498 INFO L226 Difference]: Without dead ends: 3202 [2019-10-13 20:54:52,508 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 560 GetRequests, 544 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2019-10-13 20:54:52,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3202 states. [2019-10-13 20:54:52,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3202 to 2894. [2019-10-13 20:54:52,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2894 states. [2019-10-13 20:54:52,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2894 states to 2894 states and 3750 transitions. [2019-10-13 20:54:52,769 INFO L78 Accepts]: Start accepts. Automaton has 2894 states and 3750 transitions. Word has length 275 [2019-10-13 20:54:52,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:54:52,770 INFO L462 AbstractCegarLoop]: Abstraction has 2894 states and 3750 transitions. [2019-10-13 20:54:52,771 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 20:54:52,771 INFO L276 IsEmpty]: Start isEmpty. Operand 2894 states and 3750 transitions. [2019-10-13 20:54:52,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2019-10-13 20:54:52,783 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:54:52,783 INFO L380 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] [2019-10-13 20:54:52,999 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 20:54:53,000 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:54:53,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:54:53,000 INFO L82 PathProgramCache]: Analyzing trace with hash 1943812348, now seen corresponding path program 1 times [2019-10-13 20:54:53,000 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:54:53,001 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974115515] [2019-10-13 20:54:53,001 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:54:53,001 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:54:53,001 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:54:53,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:54:53,244 INFO L134 CoverageAnalysis]: Checked inductivity of 623 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 623 trivial. 0 not checked. [2019-10-13 20:54:53,245 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974115515] [2019-10-13 20:54:53,245 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:54:53,245 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:54:53,245 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199292626] [2019-10-13 20:54:53,246 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:54:53,246 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:54:53,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:54:53,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:54:53,249 INFO L87 Difference]: Start difference. First operand 2894 states and 3750 transitions. Second operand 3 states. [2019-10-13 20:54:53,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:54:53,486 INFO L93 Difference]: Finished difference Result 4628 states and 5958 transitions. [2019-10-13 20:54:53,487 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:54:53,487 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 294 [2019-10-13 20:54:53,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:54:53,501 INFO L225 Difference]: With dead ends: 4628 [2019-10-13 20:54:53,501 INFO L226 Difference]: Without dead ends: 1776 [2019-10-13 20:54:53,517 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 20:54:53,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1776 states. [2019-10-13 20:54:53,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1776 to 1760. [2019-10-13 20:54:53,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1760 states. [2019-10-13 20:54:53,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1760 states to 1760 states and 2246 transitions. [2019-10-13 20:54:53,616 INFO L78 Accepts]: Start accepts. Automaton has 1760 states and 2246 transitions. Word has length 294 [2019-10-13 20:54:53,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:54:53,617 INFO L462 AbstractCegarLoop]: Abstraction has 1760 states and 2246 transitions. [2019-10-13 20:54:53,617 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:54:53,617 INFO L276 IsEmpty]: Start isEmpty. Operand 1760 states and 2246 transitions. [2019-10-13 20:54:53,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2019-10-13 20:54:53,624 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:54:53,625 INFO L380 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] [2019-10-13 20:54:53,625 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:54:53,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:54:53,626 INFO L82 PathProgramCache]: Analyzing trace with hash 1496748682, now seen corresponding path program 1 times [2019-10-13 20:54:53,626 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:54:53,626 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589692731] [2019-10-13 20:54:53,626 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:54:53,627 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:54:53,627 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:54:53,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:54:54,297 INFO L134 CoverageAnalysis]: Checked inductivity of 624 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 554 trivial. 0 not checked. [2019-10-13 20:54:54,297 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589692731] [2019-10-13 20:54:54,298 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1095720242] [2019-10-13 20:54:54,298 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 20:55:05,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:55:05,267 INFO L256 TraceCheckSpWp]: Trace formula consists of 2870 conjuncts, 60 conjunts are in the unsatisfiable core [2019-10-13 20:55:05,279 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 20:55:05,549 INFO L134 CoverageAnalysis]: Checked inductivity of 624 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 617 trivial. 0 not checked. [2019-10-13 20:55:05,550 INFO L321 TraceCheckSpWp]: Computing backward predicates...