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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--phantom.ko-main.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 00:19:50,957 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 00:19:50,960 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 00:19:50,974 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 00:19:50,974 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 00:19:50,975 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 00:19:50,976 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 00:19:50,978 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 00:19:50,979 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 00:19:50,980 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 00:19:50,981 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 00:19:50,982 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 00:19:50,983 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 00:19:50,985 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 00:19:50,986 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 00:19:50,987 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 00:19:50,988 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 00:19:50,989 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 00:19:50,990 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 00:19:50,992 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 00:19:50,993 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 00:19:50,994 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 00:19:50,995 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 00:19:50,996 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 00:19:50,998 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 00:19:50,998 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 00:19:50,999 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 00:19:51,000 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 00:19:51,000 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 00:19:51,001 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 00:19:51,001 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 00:19:51,002 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 00:19:51,002 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 00:19:51,003 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 00:19:51,004 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 00:19:51,004 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 00:19:51,005 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 00:19:51,005 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 00:19:51,006 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 00:19:51,006 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 00:19:51,007 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 00:19:51,008 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 [2019-10-15 00:19:51,021 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 00:19:51,022 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 00:19:51,023 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 00:19:51,023 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 00:19:51,023 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 00:19:51,024 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 00:19:51,024 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 00:19:51,024 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 00:19:51,024 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 00:19:51,024 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 00:19:51,025 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 00:19:51,025 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 00:19:51,025 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 00:19:51,025 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 00:19:51,025 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 00:19:51,026 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 00:19:51,026 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 00:19:51,026 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 00:19:51,026 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 00:19:51,026 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 00:19:51,027 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 00:19:51,027 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 00:19:51,027 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 00:19:51,027 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 00:19:51,027 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 00:19:51,028 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 00:19:51,028 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 00:19:51,028 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 00:19:51,028 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 [2019-10-15 00:19:51,304 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 00:19:51,324 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 00:19:51,328 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 00:19:51,329 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 00:19:51,329 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 00:19:51,330 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--phantom.ko-main.cil.out.i [2019-10-15 00:19:51,403 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd1582a53/b2500224c0ae46999d8cf330e7cd6086/FLAG241dee224 [2019-10-15 00:19:52,112 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 00:19:52,116 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--phantom.ko-main.cil.out.i [2019-10-15 00:19:52,146 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd1582a53/b2500224c0ae46999d8cf330e7cd6086/FLAG241dee224 [2019-10-15 00:19:52,185 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd1582a53/b2500224c0ae46999d8cf330e7cd6086 [2019-10-15 00:19:52,195 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 00:19:52,196 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 00:19:52,197 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 00:19:52,198 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 00:19:52,201 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 00:19:52,202 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:19:52" (1/1) ... [2019-10-15 00:19:52,205 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18e6faf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:19:52, skipping insertion in model container [2019-10-15 00:19:52,205 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:19:52" (1/1) ... [2019-10-15 00:19:52,210 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 00:19:52,306 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 00:19:53,898 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 00:19:53,935 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 00:19:54,190 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 00:19:54,371 INFO L192 MainTranslator]: Completed translation [2019-10-15 00:19:54,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:19:54 WrapperNode [2019-10-15 00:19:54,371 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 00:19:54,372 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 00:19:54,372 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 00:19:54,372 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 00:19:54,386 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:19:54" (1/1) ... [2019-10-15 00:19:54,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:19:54" (1/1) ... [2019-10-15 00:19:54,462 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:19:54" (1/1) ... [2019-10-15 00:19:54,462 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:19:54" (1/1) ... [2019-10-15 00:19:54,556 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:19:54" (1/1) ... [2019-10-15 00:19:54,585 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:19:54" (1/1) ... [2019-10-15 00:19:54,606 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:19:54" (1/1) ... [2019-10-15 00:19:54,627 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 00:19:54,627 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 00:19:54,627 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 00:19:54,628 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 00:19:54,629 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:19:54" (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 [2019-10-15 00:19:54,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 00:19:54,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 00:19:54,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2019-10-15 00:19:54,699 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-10-15 00:19:54,699 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-10-15 00:19:54,699 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2019-10-15 00:19:54,699 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2019-10-15 00:19:54,700 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2019-10-15 00:19:54,700 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-10-15 00:19:54,700 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2019-10-15 00:19:54,700 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2019-10-15 00:19:54,700 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-10-15 00:19:54,701 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2019-10-15 00:19:54,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-15 00:19:54,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-15 00:19:54,701 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-15 00:19:54,701 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-15 00:19:54,702 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-15 00:19:54,702 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2019-10-15 00:19:54,703 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2019-10-15 00:19:54,703 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2019-10-15 00:19:54,703 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-10-15 00:19:54,703 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2019-10-15 00:19:54,704 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2019-10-15 00:19:54,704 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_status [2019-10-15 00:19:54,704 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_ioctl [2019-10-15 00:19:54,704 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_compat_ioctl [2019-10-15 00:19:54,704 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_open [2019-10-15 00:19:54,704 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_release [2019-10-15 00:19:54,705 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_poll [2019-10-15 00:19:54,705 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_isr [2019-10-15 00:19:54,705 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_get_free [2019-10-15 00:19:54,705 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_probe [2019-10-15 00:19:54,705 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_remove [2019-10-15 00:19:54,705 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_suspend [2019-10-15 00:19:54,706 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_resume [2019-10-15 00:19:54,706 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_init [2019-10-15 00:19:54,706 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_exit [2019-10-15 00:19:54,707 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 00:19:54,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_1 [2019-10-15 00:19:54,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_2 [2019-10-15 00:19:54,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_3 [2019-10-15 00:19:54,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_4 [2019-10-15 00:19:54,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_5 [2019-10-15 00:19:54,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_6 [2019-10-15 00:19:54,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2019-10-15 00:19:54,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_8 [2019-10-15 00:19:54,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_9 [2019-10-15 00:19:54,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_10 [2019-10-15 00:19:54,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2019-10-15 00:19:54,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_12 [2019-10-15 00:19:54,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_13 [2019-10-15 00:19:54,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_14 [2019-10-15 00:19:54,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_15 [2019-10-15 00:19:54,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_16 [2019-10-15 00:19:54,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_cdev_init_17 [2019-10-15 00:19:54,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_cdev_del_18 [2019-10-15 00:19:54,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-15 00:19:54,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-15 00:19:54,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-10-15 00:19:54,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2019-10-15 00:19:54,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2019-10-15 00:19:54,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2019-10-15 00:19:54,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2019-10-15 00:19:54,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2019-10-15 00:19:54,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2019-10-15 00:19:54,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2019-10-15 00:19:54,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2019-10-15 00:19:54,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2019-10-15 00:19:54,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2019-10-15 00:19:54,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2019-10-15 00:19:54,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-10-15 00:19:54,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2019-10-15 00:19:54,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2019-10-15 00:19:54,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-10-15 00:19:54,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2019-10-15 00:19:54,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2019-10-15 00:19:54,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2019-10-15 00:19:54,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-10-15 00:19:54,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2019-10-15 00:19:54,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2019-10-15 00:19:54,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_open_lock_of_phantom_device [2019-10-15 00:19:54,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_open_lock_of_phantom_device [2019-10-15 00:19:54,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_open_lock_of_phantom_device [2019-10-15 00:19:54,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_open_lock_of_phantom_device [2019-10-15 00:19:54,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_open_lock_of_phantom_device [2019-10-15 00:19:54,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_open_lock_of_phantom_device [2019-10-15 00:19:54,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_open_lock_of_phantom_device [2019-10-15 00:19:54,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_phantom_mutex [2019-10-15 00:19:54,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_phantom_mutex [2019-10-15 00:19:54,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_phantom_mutex [2019-10-15 00:19:54,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_phantom_mutex [2019-10-15 00:19:54,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_phantom_mutex [2019-10-15 00:19:54,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_phantom_mutex [2019-10-15 00:19:54,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_phantom_mutex [2019-10-15 00:19:54,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-15 00:19:54,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-15 00:19:54,718 INFO L138 BoogieDeclarations]: Found implementation of procedure __class_create [2019-10-15 00:19:54,718 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2019-10-15 00:19:54,718 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-10-15 00:19:54,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2019-10-15 00:19:54,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __pci_register_driver [2019-10-15 00:19:54,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-10-15 00:19:54,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2019-10-15 00:19:54,719 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2019-10-15 00:19:54,719 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-10-15 00:19:54,719 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2019-10-15 00:19:54,720 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2019-10-15 00:19:54,720 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2019-10-15 00:19:54,720 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-10-15 00:19:54,720 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_chrdev_region [2019-10-15 00:19:54,720 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2019-10-15 00:19:54,720 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_del [2019-10-15 00:19:54,720 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_init [2019-10-15 00:19:54,721 INFO L138 BoogieDeclarations]: Found implementation of procedure class_create_file [2019-10-15 00:19:54,721 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2019-10-15 00:19:54,721 INFO L138 BoogieDeclarations]: Found implementation of procedure class_remove_file [2019-10-15 00:19:54,721 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-10-15 00:19:54,721 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-10-15 00:19:54,722 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-10-15 00:19:54,722 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create [2019-10-15 00:19:54,723 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2019-10-15 00:19:54,723 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2019-10-15 00:19:54,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2019-10-15 00:19:54,724 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2019-10-15 00:19:54,724 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-10-15 00:19:54,724 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2019-10-15 00:19:54,724 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2019-10-15 00:19:54,724 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2019-10-15 00:19:54,725 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-15 00:19:54,725 INFO L138 BoogieDeclarations]: Found implementation of procedure no_llseek [2019-10-15 00:19:54,725 INFO L138 BoogieDeclarations]: Found implementation of procedure nonseekable_open [2019-10-15 00:19:54,725 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2019-10-15 00:19:54,725 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2019-10-15 00:19:54,726 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2019-10-15 00:19:54,726 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2019-10-15 00:19:54,726 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2019-10-15 00:19:54,729 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_request_regions [2019-10-15 00:19:54,730 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2019-10-15 00:19:54,730 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-15 00:19:54,730 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2019-10-15 00:19:54,730 INFO L138 BoogieDeclarations]: Found implementation of procedure show_class_attr_string [2019-10-15 00:19:54,731 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_irq [2019-10-15 00:19:54,731 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2019-10-15 00:19:54,737 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2019-10-15 00:19:54,738 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2019-10-15 00:19:54,738 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-15 00:19:54,738 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-15 00:19:54,738 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-15 00:19:54,738 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 00:19:54,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-15 00:19:54,739 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-15 00:19:54,739 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2019-10-15 00:19:54,739 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-10-15 00:19:54,739 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-15 00:19:54,739 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2019-10-15 00:19:54,740 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2019-10-15 00:19:54,740 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-10-15 00:19:54,740 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-10-15 00:19:54,740 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2019-10-15 00:19:54,740 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 00:19:54,740 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2019-10-15 00:19:54,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 00:19:54,740 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2019-10-15 00:19:54,740 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2019-10-15 00:19:54,741 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2019-10-15 00:19:54,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_6 [2019-10-15 00:19:54,741 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-15 00:19:54,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_2 [2019-10-15 00:19:54,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_4 [2019-10-15 00:19:54,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2019-10-15 00:19:54,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_10 [2019-10-15 00:19:54,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2019-10-15 00:19:54,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_12 [2019-10-15 00:19:54,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_13 [2019-10-15 00:19:54,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_14 [2019-10-15 00:19:54,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_16 [2019-10-15 00:19:54,742 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2019-10-15 00:19:54,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_9 [2019-10-15 00:19:54,742 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2019-10-15 00:19:54,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_1 [2019-10-15 00:19:54,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_3 [2019-10-15 00:19:54,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_5 [2019-10-15 00:19:54,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_8 [2019-10-15 00:19:54,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_15 [2019-10-15 00:19:54,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2019-10-15 00:19:54,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2019-10-15 00:19:54,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2019-10-15 00:19:54,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2019-10-15 00:19:54,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2019-10-15 00:19:54,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2019-10-15 00:19:54,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2019-10-15 00:19:54,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_open_lock_of_phantom_device [2019-10-15 00:19:54,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_open_lock_of_phantom_device [2019-10-15 00:19:54,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_open_lock_of_phantom_device [2019-10-15 00:19:54,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_phantom_mutex [2019-10-15 00:19:54,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_phantom_mutex [2019-10-15 00:19:54,744 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 00:19:54,745 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-10-15 00:19:54,745 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2019-10-15 00:19:54,745 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2019-10-15 00:19:54,745 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2019-10-15 00:19:54,745 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-10-15 00:19:54,745 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-10-15 00:19:54,745 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2019-10-15 00:19:54,746 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2019-10-15 00:19:54,746 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-10-15 00:19:54,746 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-10-15 00:19:54,747 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2019-10-15 00:19:54,747 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2019-10-15 00:19:54,747 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2019-10-15 00:19:54,748 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2019-10-15 00:19:54,748 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2019-10-15 00:19:54,748 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_chrdev_region [2019-10-15 00:19:54,748 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2019-10-15 00:19:54,748 INFO L130 BoogieDeclarations]: Found specification of procedure no_llseek [2019-10-15 00:19:54,748 INFO L130 BoogieDeclarations]: Found specification of procedure nonseekable_open [2019-10-15 00:19:54,748 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2019-10-15 00:19:54,748 INFO L130 BoogieDeclarations]: Found specification of procedure class_create_file [2019-10-15 00:19:54,748 INFO L130 BoogieDeclarations]: Found specification of procedure class_remove_file [2019-10-15 00:19:54,749 INFO L130 BoogieDeclarations]: Found specification of procedure show_class_attr_string [2019-10-15 00:19:54,749 INFO L130 BoogieDeclarations]: Found specification of procedure __class_create [2019-10-15 00:19:54,749 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2019-10-15 00:19:54,749 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-10-15 00:19:54,749 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-10-15 00:19:54,749 INFO L130 BoogieDeclarations]: Found specification of procedure device_create [2019-10-15 00:19:54,749 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2019-10-15 00:19:54,749 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-10-15 00:19:54,750 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2019-10-15 00:19:54,750 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2019-10-15 00:19:54,750 INFO L130 BoogieDeclarations]: Found specification of procedure pci_request_regions [2019-10-15 00:19:54,750 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2019-10-15 00:19:54,750 INFO L130 BoogieDeclarations]: Found specification of procedure __pci_register_driver [2019-10-15 00:19:54,750 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2019-10-15 00:19:54,750 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-15 00:19:54,750 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-15 00:19:54,751 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 00:19:54,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-15 00:19:54,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-15 00:19:54,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 00:19:54,751 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-15 00:19:54,751 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-15 00:19:54,751 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-15 00:19:54,751 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2019-10-15 00:19:54,752 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2019-10-15 00:19:54,752 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-10-15 00:19:54,752 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2019-10-15 00:19:54,752 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2019-10-15 00:19:54,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 00:19:54,752 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-10-15 00:19:54,752 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2019-10-15 00:19:54,752 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2019-10-15 00:19:54,753 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 00:19:54,753 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_irq [2019-10-15 00:19:54,753 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2019-10-15 00:19:54,753 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2019-10-15 00:19:54,753 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2019-10-15 00:19:54,753 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_init [2019-10-15 00:19:54,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_cdev_init_17 [2019-10-15 00:19:54,753 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2019-10-15 00:19:54,754 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_del [2019-10-15 00:19:54,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_cdev_del_18 [2019-10-15 00:19:54,754 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_status [2019-10-15 00:19:54,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 00:19:54,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 00:19:54,759 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_ioctl [2019-10-15 00:19:54,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-15 00:19:54,760 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_compat_ioctl [2019-10-15 00:19:54,760 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_open [2019-10-15 00:19:54,760 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_release [2019-10-15 00:19:54,760 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_poll [2019-10-15 00:19:54,760 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_isr [2019-10-15 00:19:54,761 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_get_free [2019-10-15 00:19:54,762 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_probe [2019-10-15 00:19:54,762 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_remove [2019-10-15 00:19:54,762 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_suspend [2019-10-15 00:19:54,762 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_resume [2019-10-15 00:19:54,762 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_init [2019-10-15 00:19:54,762 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_exit [2019-10-15 00:19:54,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-15 00:19:54,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-15 00:19:54,763 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 00:19:54,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-15 00:19:54,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-10-15 00:19:54,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2019-10-15 00:19:54,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2019-10-15 00:19:54,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2019-10-15 00:19:54,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2019-10-15 00:19:54,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2019-10-15 00:19:54,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2019-10-15 00:19:54,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2019-10-15 00:19:54,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2019-10-15 00:19:54,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-10-15 00:19:54,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2019-10-15 00:19:54,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-10-15 00:19:54,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2019-10-15 00:19:54,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-10-15 00:19:54,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2019-10-15 00:19:54,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_open_lock_of_phantom_device [2019-10-15 00:19:54,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_open_lock_of_phantom_device [2019-10-15 00:19:54,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_open_lock_of_phantom_device [2019-10-15 00:19:54,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_open_lock_of_phantom_device [2019-10-15 00:19:54,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_phantom_mutex [2019-10-15 00:19:54,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_phantom_mutex [2019-10-15 00:19:54,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_phantom_mutex [2019-10-15 00:19:54,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_phantom_mutex [2019-10-15 00:19:54,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_phantom_mutex [2019-10-15 00:19:54,766 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-15 00:19:54,766 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-15 00:19:54,766 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-15 00:19:54,766 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-10-15 00:19:54,766 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-15 00:19:54,767 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 00:19:54,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 00:19:54,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 00:19:54,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-15 00:19:54,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 00:19:54,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-15 00:19:54,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-15 00:19:54,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-15 00:19:54,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-15 00:19:58,340 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 00:19:58,340 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-15 00:19:58,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:19:58 BoogieIcfgContainer [2019-10-15 00:19:58,342 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 00:19:58,343 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 00:19:58,343 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 00:19:58,346 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 00:19:58,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 12:19:52" (1/3) ... [2019-10-15 00:19:58,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9045b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:19:58, skipping insertion in model container [2019-10-15 00:19:58,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:19:54" (2/3) ... [2019-10-15 00:19:58,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9045b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:19:58, skipping insertion in model container [2019-10-15 00:19:58,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:19:58" (3/3) ... [2019-10-15 00:19:58,349 INFO L109 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--misc--phantom.ko-main.cil.out.i [2019-10-15 00:19:58,359 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 00:19:58,369 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 00:19:58,380 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 00:19:58,419 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 00:19:58,419 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 00:19:58,419 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 00:19:58,419 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 00:19:58,419 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 00:19:58,419 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 00:19:58,419 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 00:19:58,420 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 00:19:58,464 INFO L276 IsEmpty]: Start isEmpty. Operand 958 states. [2019-10-15 00:19:58,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-15 00:19:58,477 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:19:58,478 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:19:58,482 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:19:58,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:19:58,488 INFO L82 PathProgramCache]: Analyzing trace with hash -1370570878, now seen corresponding path program 1 times [2019-10-15 00:19:58,497 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:19:58,498 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408894156] [2019-10-15 00:19:58,498 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:19:58,498 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:19:58,498 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:19:58,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:19:59,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 00:19:59,192 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408894156] [2019-10-15 00:19:59,193 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:19:59,193 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:19:59,194 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570283731] [2019-10-15 00:19:59,199 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:19:59,200 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:19:59,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:19:59,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:19:59,218 INFO L87 Difference]: Start difference. First operand 958 states. Second operand 3 states. [2019-10-15 00:19:59,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:19:59,550 INFO L93 Difference]: Finished difference Result 1897 states and 2442 transitions. [2019-10-15 00:19:59,551 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:19:59,552 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2019-10-15 00:19:59,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:19:59,580 INFO L225 Difference]: With dead ends: 1897 [2019-10-15 00:19:59,580 INFO L226 Difference]: Without dead ends: 1098 [2019-10-15 00:19:59,589 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 [2019-10-15 00:19:59,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1098 states. [2019-10-15 00:19:59,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1098 to 1056. [2019-10-15 00:19:59,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1056 states. [2019-10-15 00:19:59,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1331 transitions. [2019-10-15 00:19:59,745 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1331 transitions. Word has length 27 [2019-10-15 00:19:59,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:19:59,745 INFO L462 AbstractCegarLoop]: Abstraction has 1056 states and 1331 transitions. [2019-10-15 00:19:59,745 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:19:59,745 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1331 transitions. [2019-10-15 00:19:59,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2019-10-15 00:19:59,759 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:19:59,759 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:19:59,759 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:19:59,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:19:59,760 INFO L82 PathProgramCache]: Analyzing trace with hash -274796882, now seen corresponding path program 1 times [2019-10-15 00:19:59,760 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:19:59,760 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375055253] [2019-10-15 00:19:59,760 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:19:59,761 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:19:59,761 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:19:59,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:20:00,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 00:20:00,011 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375055253] [2019-10-15 00:20:00,012 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:20:00,012 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:20:00,012 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074452782] [2019-10-15 00:20:00,015 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:20:00,015 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:20:00,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:20:00,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:20:00,016 INFO L87 Difference]: Start difference. First operand 1056 states and 1331 transitions. Second operand 3 states. [2019-10-15 00:20:00,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:20:00,696 INFO L93 Difference]: Finished difference Result 3007 states and 3798 transitions. [2019-10-15 00:20:00,697 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:20:00,697 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 50 [2019-10-15 00:20:00,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:20:00,710 INFO L225 Difference]: With dead ends: 3007 [2019-10-15 00:20:00,711 INFO L226 Difference]: Without dead ends: 1962 [2019-10-15 00:20:00,716 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 [2019-10-15 00:20:00,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2019-10-15 00:20:00,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1955. [2019-10-15 00:20:00,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1955 states. [2019-10-15 00:20:00,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1955 states to 1955 states and 2466 transitions. [2019-10-15 00:20:00,804 INFO L78 Accepts]: Start accepts. Automaton has 1955 states and 2466 transitions. Word has length 50 [2019-10-15 00:20:00,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:20:00,805 INFO L462 AbstractCegarLoop]: Abstraction has 1955 states and 2466 transitions. [2019-10-15 00:20:00,805 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:20:00,805 INFO L276 IsEmpty]: Start isEmpty. Operand 1955 states and 2466 transitions. [2019-10-15 00:20:00,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-10-15 00:20:00,807 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:20:00,807 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:20:00,807 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:20:00,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:20:00,808 INFO L82 PathProgramCache]: Analyzing trace with hash 529971578, now seen corresponding path program 1 times [2019-10-15 00:20:00,808 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:20:00,808 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885831599] [2019-10-15 00:20:00,808 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:20:00,808 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:20:00,809 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:20:00,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:20:01,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 00:20:01,055 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885831599] [2019-10-15 00:20:01,055 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:20:01,056 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:20:01,056 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578127441] [2019-10-15 00:20:01,057 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:20:01,057 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:20:01,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:20:01,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:20:01,057 INFO L87 Difference]: Start difference. First operand 1955 states and 2466 transitions. Second operand 3 states. [2019-10-15 00:20:01,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:20:01,187 INFO L93 Difference]: Finished difference Result 1981 states and 2498 transitions. [2019-10-15 00:20:01,187 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:20:01,187 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 56 [2019-10-15 00:20:01,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:20:01,199 INFO L225 Difference]: With dead ends: 1981 [2019-10-15 00:20:01,199 INFO L226 Difference]: Without dead ends: 1968 [2019-10-15 00:20:01,200 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 [2019-10-15 00:20:01,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1968 states. [2019-10-15 00:20:01,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1968 to 1955. [2019-10-15 00:20:01,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1955 states. [2019-10-15 00:20:01,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1955 states to 1955 states and 2464 transitions. [2019-10-15 00:20:01,280 INFO L78 Accepts]: Start accepts. Automaton has 1955 states and 2464 transitions. Word has length 56 [2019-10-15 00:20:01,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:20:01,280 INFO L462 AbstractCegarLoop]: Abstraction has 1955 states and 2464 transitions. [2019-10-15 00:20:01,280 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:20:01,281 INFO L276 IsEmpty]: Start isEmpty. Operand 1955 states and 2464 transitions. [2019-10-15 00:20:01,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-10-15 00:20:01,282 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:20:01,282 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:20:01,282 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:20:01,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:20:01,283 INFO L82 PathProgramCache]: Analyzing trace with hash 587229880, now seen corresponding path program 1 times [2019-10-15 00:20:01,283 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:20:01,283 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862599772] [2019-10-15 00:20:01,283 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:20:01,283 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:20:01,284 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:20:01,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:20:01,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 00:20:01,409 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862599772] [2019-10-15 00:20:01,409 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:20:01,409 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:20:01,410 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517187534] [2019-10-15 00:20:01,410 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:20:01,410 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:20:01,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:20:01,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:20:01,411 INFO L87 Difference]: Start difference. First operand 1955 states and 2464 transitions. Second operand 3 states. [2019-10-15 00:20:01,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:20:01,905 INFO L93 Difference]: Finished difference Result 1957 states and 2465 transitions. [2019-10-15 00:20:01,906 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:20:01,906 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 56 [2019-10-15 00:20:01,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:20:01,917 INFO L225 Difference]: With dead ends: 1957 [2019-10-15 00:20:01,917 INFO L226 Difference]: Without dead ends: 1954 [2019-10-15 00:20:01,919 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 [2019-10-15 00:20:01,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1954 states. [2019-10-15 00:20:01,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1954 to 1954. [2019-10-15 00:20:01,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1954 states. [2019-10-15 00:20:02,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1954 states to 1954 states and 2462 transitions. [2019-10-15 00:20:02,001 INFO L78 Accepts]: Start accepts. Automaton has 1954 states and 2462 transitions. Word has length 56 [2019-10-15 00:20:02,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:20:02,001 INFO L462 AbstractCegarLoop]: Abstraction has 1954 states and 2462 transitions. [2019-10-15 00:20:02,001 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:20:02,001 INFO L276 IsEmpty]: Start isEmpty. Operand 1954 states and 2462 transitions. [2019-10-15 00:20:02,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-10-15 00:20:02,003 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:20:02,003 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:20:02,003 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:20:02,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:20:02,003 INFO L82 PathProgramCache]: Analyzing trace with hash 1023514197, now seen corresponding path program 1 times [2019-10-15 00:20:02,004 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:20:02,004 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89229675] [2019-10-15 00:20:02,004 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:20:02,004 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:20:02,004 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:20:02,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:20:02,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 00:20:02,121 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89229675] [2019-10-15 00:20:02,121 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:20:02,121 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:20:02,121 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159054814] [2019-10-15 00:20:02,122 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:20:02,122 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:20:02,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:20:02,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:20:02,123 INFO L87 Difference]: Start difference. First operand 1954 states and 2462 transitions. Second operand 3 states. [2019-10-15 00:20:03,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:20:03,328 INFO L93 Difference]: Finished difference Result 1956 states and 2463 transitions. [2019-10-15 00:20:03,328 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:20:03,329 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 57 [2019-10-15 00:20:03,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:20:03,338 INFO L225 Difference]: With dead ends: 1956 [2019-10-15 00:20:03,338 INFO L226 Difference]: Without dead ends: 1953 [2019-10-15 00:20:03,340 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 [2019-10-15 00:20:03,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1953 states. [2019-10-15 00:20:03,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1953 to 1953. [2019-10-15 00:20:03,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1953 states. [2019-10-15 00:20:03,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1953 states to 1953 states and 2460 transitions. [2019-10-15 00:20:03,419 INFO L78 Accepts]: Start accepts. Automaton has 1953 states and 2460 transitions. Word has length 57 [2019-10-15 00:20:03,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:20:03,420 INFO L462 AbstractCegarLoop]: Abstraction has 1953 states and 2460 transitions. [2019-10-15 00:20:03,420 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:20:03,420 INFO L276 IsEmpty]: Start isEmpty. Operand 1953 states and 2460 transitions. [2019-10-15 00:20:03,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-10-15 00:20:03,421 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:20:03,421 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:20:03,422 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:20:03,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:20:03,422 INFO L82 PathProgramCache]: Analyzing trace with hash 1663431003, now seen corresponding path program 1 times [2019-10-15 00:20:03,422 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:20:03,423 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336183912] [2019-10-15 00:20:03,423 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:20:03,423 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:20:03,423 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:20:03,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:20:03,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 00:20:03,550 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336183912] [2019-10-15 00:20:03,550 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:20:03,550 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:20:03,550 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172764556] [2019-10-15 00:20:03,551 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:20:03,551 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:20:03,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:20:03,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:20:03,552 INFO L87 Difference]: Start difference. First operand 1953 states and 2460 transitions. Second operand 3 states. [2019-10-15 00:20:04,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:20:04,204 INFO L93 Difference]: Finished difference Result 1955 states and 2461 transitions. [2019-10-15 00:20:04,204 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:20:04,205 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 58 [2019-10-15 00:20:04,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:20:04,217 INFO L225 Difference]: With dead ends: 1955 [2019-10-15 00:20:04,217 INFO L226 Difference]: Without dead ends: 1952 [2019-10-15 00:20:04,219 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 [2019-10-15 00:20:04,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1952 states. [2019-10-15 00:20:04,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1952 to 1952. [2019-10-15 00:20:04,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1952 states. [2019-10-15 00:20:04,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1952 states to 1952 states and 2458 transitions. [2019-10-15 00:20:04,310 INFO L78 Accepts]: Start accepts. Automaton has 1952 states and 2458 transitions. Word has length 58 [2019-10-15 00:20:04,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:20:04,311 INFO L462 AbstractCegarLoop]: Abstraction has 1952 states and 2458 transitions. [2019-10-15 00:20:04,312 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:20:04,312 INFO L276 IsEmpty]: Start isEmpty. Operand 1952 states and 2458 transitions. [2019-10-15 00:20:04,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-10-15 00:20:04,314 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:20:04,314 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:20:04,314 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:20:04,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:20:04,314 INFO L82 PathProgramCache]: Analyzing trace with hash 26020376, now seen corresponding path program 1 times [2019-10-15 00:20:04,315 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:20:04,315 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468369589] [2019-10-15 00:20:04,315 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:20:04,315 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:20:04,315 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:20:04,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:20:04,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 00:20:04,441 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468369589] [2019-10-15 00:20:04,442 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:20:04,442 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:20:04,442 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348011694] [2019-10-15 00:20:04,442 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:20:04,443 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:20:04,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:20:04,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:20:04,443 INFO L87 Difference]: Start difference. First operand 1952 states and 2458 transitions. Second operand 3 states. [2019-10-15 00:20:05,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:20:05,394 INFO L93 Difference]: Finished difference Result 5741 states and 7265 transitions. [2019-10-15 00:20:05,395 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:20:05,395 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 59 [2019-10-15 00:20:05,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:20:05,416 INFO L225 Difference]: With dead ends: 5741 [2019-10-15 00:20:05,416 INFO L226 Difference]: Without dead ends: 3800 [2019-10-15 00:20:05,424 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 [2019-10-15 00:20:05,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3800 states. [2019-10-15 00:20:05,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3800 to 3786. [2019-10-15 00:20:05,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3786 states. [2019-10-15 00:20:05,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3786 states to 3786 states and 4786 transitions. [2019-10-15 00:20:05,632 INFO L78 Accepts]: Start accepts. Automaton has 3786 states and 4786 transitions. Word has length 59 [2019-10-15 00:20:05,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:20:05,632 INFO L462 AbstractCegarLoop]: Abstraction has 3786 states and 4786 transitions. [2019-10-15 00:20:05,633 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:20:05,633 INFO L276 IsEmpty]: Start isEmpty. Operand 3786 states and 4786 transitions. [2019-10-15 00:20:05,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-10-15 00:20:05,638 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:20:05,638 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:20:05,639 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:20:05,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:20:05,639 INFO L82 PathProgramCache]: Analyzing trace with hash 805903358, now seen corresponding path program 1 times [2019-10-15 00:20:05,640 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:20:05,640 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371573790] [2019-10-15 00:20:05,640 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:20:05,640 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:20:05,640 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:20:05,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:20:05,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 00:20:05,878 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371573790] [2019-10-15 00:20:05,879 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:20:05,879 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:20:05,879 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478883905] [2019-10-15 00:20:05,880 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:20:05,880 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:20:05,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:20:05,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:20:05,882 INFO L87 Difference]: Start difference. First operand 3786 states and 4786 transitions. Second operand 3 states. [2019-10-15 00:20:06,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:20:06,894 INFO L93 Difference]: Finished difference Result 3837 states and 4823 transitions. [2019-10-15 00:20:06,894 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:20:06,895 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2019-10-15 00:20:06,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:20:06,915 INFO L225 Difference]: With dead ends: 3837 [2019-10-15 00:20:06,916 INFO L226 Difference]: Without dead ends: 3773 [2019-10-15 00:20:06,918 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 [2019-10-15 00:20:06,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3773 states. [2019-10-15 00:20:07,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3773 to 3753. [2019-10-15 00:20:07,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3753 states. [2019-10-15 00:20:07,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3753 states to 3753 states and 4726 transitions. [2019-10-15 00:20:07,161 INFO L78 Accepts]: Start accepts. Automaton has 3753 states and 4726 transitions. Word has length 60 [2019-10-15 00:20:07,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:20:07,161 INFO L462 AbstractCegarLoop]: Abstraction has 3753 states and 4726 transitions. [2019-10-15 00:20:07,161 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:20:07,162 INFO L276 IsEmpty]: Start isEmpty. Operand 3753 states and 4726 transitions. [2019-10-15 00:20:07,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2019-10-15 00:20:07,166 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:20:07,167 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:20:07,167 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:20:07,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:20:07,167 INFO L82 PathProgramCache]: Analyzing trace with hash 953655475, now seen corresponding path program 1 times [2019-10-15 00:20:07,168 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:20:07,168 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362661369] [2019-10-15 00:20:07,168 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:20:07,168 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:20:07,168 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:20:07,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:20:07,364 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-10-15 00:20:07,366 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362661369] [2019-10-15 00:20:07,366 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:20:07,367 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:20:07,367 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330844953] [2019-10-15 00:20:07,368 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:20:07,369 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:20:07,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:20:07,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:20:07,370 INFO L87 Difference]: Start difference. First operand 3753 states and 4726 transitions. Second operand 3 states. [2019-10-15 00:20:07,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:20:07,729 INFO L93 Difference]: Finished difference Result 9583 states and 12170 transitions. [2019-10-15 00:20:07,730 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:20:07,730 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 221 [2019-10-15 00:20:07,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:20:07,759 INFO L225 Difference]: With dead ends: 9583 [2019-10-15 00:20:07,760 INFO L226 Difference]: Without dead ends: 5841 [2019-10-15 00:20:07,775 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 [2019-10-15 00:20:07,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5841 states. [2019-10-15 00:20:08,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5841 to 5774. [2019-10-15 00:20:08,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5774 states. [2019-10-15 00:20:08,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5774 states to 5774 states and 7377 transitions. [2019-10-15 00:20:08,140 INFO L78 Accepts]: Start accepts. Automaton has 5774 states and 7377 transitions. Word has length 221 [2019-10-15 00:20:08,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:20:08,140 INFO L462 AbstractCegarLoop]: Abstraction has 5774 states and 7377 transitions. [2019-10-15 00:20:08,140 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:20:08,140 INFO L276 IsEmpty]: Start isEmpty. Operand 5774 states and 7377 transitions. [2019-10-15 00:20:08,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2019-10-15 00:20:08,147 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:20:08,148 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:20:08,148 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:20:08,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:20:08,148 INFO L82 PathProgramCache]: Analyzing trace with hash -140423935, now seen corresponding path program 1 times [2019-10-15 00:20:08,149 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:20:08,149 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200661250] [2019-10-15 00:20:08,149 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:20:08,149 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:20:08,149 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:20:08,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:20:08,395 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-15 00:20:08,396 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200661250] [2019-10-15 00:20:08,396 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:20:08,396 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:20:08,396 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378433520] [2019-10-15 00:20:08,397 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:20:08,397 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:20:08,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:20:08,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:20:08,398 INFO L87 Difference]: Start difference. First operand 5774 states and 7377 transitions. Second operand 3 states. [2019-10-15 00:20:09,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:20:09,721 INFO L93 Difference]: Finished difference Result 13237 states and 16904 transitions. [2019-10-15 00:20:09,723 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:20:09,723 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 262 [2019-10-15 00:20:09,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:20:09,764 INFO L225 Difference]: With dead ends: 13237 [2019-10-15 00:20:09,765 INFO L226 Difference]: Without dead ends: 7474 [2019-10-15 00:20:09,785 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 [2019-10-15 00:20:09,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7474 states. [2019-10-15 00:20:10,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7474 to 7320. [2019-10-15 00:20:10,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7320 states. [2019-10-15 00:20:10,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7320 states to 7320 states and 9313 transitions. [2019-10-15 00:20:10,061 INFO L78 Accepts]: Start accepts. Automaton has 7320 states and 9313 transitions. Word has length 262 [2019-10-15 00:20:10,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:20:10,063 INFO L462 AbstractCegarLoop]: Abstraction has 7320 states and 9313 transitions. [2019-10-15 00:20:10,063 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:20:10,063 INFO L276 IsEmpty]: Start isEmpty. Operand 7320 states and 9313 transitions. [2019-10-15 00:20:10,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2019-10-15 00:20:10,071 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:20:10,071 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:20:10,072 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:20:10,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:20:10,072 INFO L82 PathProgramCache]: Analyzing trace with hash 1924208959, now seen corresponding path program 1 times [2019-10-15 00:20:10,072 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:20:10,072 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258239089] [2019-10-15 00:20:10,073 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:20:10,073 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:20:10,073 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:20:10,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:20:10,355 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2019-10-15 00:20:10,355 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258239089] [2019-10-15 00:20:10,355 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:20:10,356 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 00:20:10,356 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374959730] [2019-10-15 00:20:10,356 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 00:20:10,357 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:20:10,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 00:20:10,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 00:20:10,357 INFO L87 Difference]: Start difference. First operand 7320 states and 9313 transitions. Second operand 7 states. [2019-10-15 00:20:10,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:20:10,615 INFO L93 Difference]: Finished difference Result 11261 states and 14273 transitions. [2019-10-15 00:20:10,616 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 00:20:10,616 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 274 [2019-10-15 00:20:10,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:20:10,634 INFO L225 Difference]: With dead ends: 11261 [2019-10-15 00:20:10,634 INFO L226 Difference]: Without dead ends: 3952 [2019-10-15 00:20:10,658 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 00:20:10,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3952 states. [2019-10-15 00:20:10,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3952 to 3944. [2019-10-15 00:20:10,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3944 states. [2019-10-15 00:20:10,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3944 states to 3944 states and 4955 transitions. [2019-10-15 00:20:10,802 INFO L78 Accepts]: Start accepts. Automaton has 3944 states and 4955 transitions. Word has length 274 [2019-10-15 00:20:10,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:20:10,805 INFO L462 AbstractCegarLoop]: Abstraction has 3944 states and 4955 transitions. [2019-10-15 00:20:10,805 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 00:20:10,805 INFO L276 IsEmpty]: Start isEmpty. Operand 3944 states and 4955 transitions. [2019-10-15 00:20:10,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2019-10-15 00:20:10,813 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:20:10,814 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:20:10,814 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:20:10,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:20:10,815 INFO L82 PathProgramCache]: Analyzing trace with hash -863206528, now seen corresponding path program 1 times [2019-10-15 00:20:10,815 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:20:10,815 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825872593] [2019-10-15 00:20:10,815 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:20:10,815 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:20:10,816 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:20:10,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:20:11,077 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2019-10-15 00:20:11,078 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825872593] [2019-10-15 00:20:11,078 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:20:11,078 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:20:11,079 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379560408] [2019-10-15 00:20:11,080 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:20:11,080 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:20:11,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:20:11,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:20:11,081 INFO L87 Difference]: Start difference. First operand 3944 states and 4955 transitions. Second operand 3 states. [2019-10-15 00:20:12,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:20:12,520 INFO L93 Difference]: Finished difference Result 3949 states and 4958 transitions. [2019-10-15 00:20:12,521 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:20:12,521 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 274 [2019-10-15 00:20:12,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:20:12,545 INFO L225 Difference]: With dead ends: 3949 [2019-10-15 00:20:12,546 INFO L226 Difference]: Without dead ends: 3946 [2019-10-15 00:20:12,548 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:20:12,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3946 states. [2019-10-15 00:20:12,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3946 to 3943. [2019-10-15 00:20:12,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3943 states. [2019-10-15 00:20:12,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3943 states to 3943 states and 4950 transitions. [2019-10-15 00:20:12,770 INFO L78 Accepts]: Start accepts. Automaton has 3943 states and 4950 transitions. Word has length 274 [2019-10-15 00:20:12,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:20:12,771 INFO L462 AbstractCegarLoop]: Abstraction has 3943 states and 4950 transitions. [2019-10-15 00:20:12,771 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:20:12,771 INFO L276 IsEmpty]: Start isEmpty. Operand 3943 states and 4950 transitions. [2019-10-15 00:20:12,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2019-10-15 00:20:12,778 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:20:12,779 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:20:12,779 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:20:12,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:20:12,780 INFO L82 PathProgramCache]: Analyzing trace with hash -1392884888, now seen corresponding path program 1 times [2019-10-15 00:20:12,780 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:20:12,780 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977822409] [2019-10-15 00:20:12,780 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:20:12,780 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:20:12,781 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:20:12,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:20:13,038 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2019-10-15 00:20:13,038 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977822409] [2019-10-15 00:20:13,039 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:20:13,039 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:20:13,039 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004379371] [2019-10-15 00:20:13,041 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:20:13,042 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:20:13,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:20:13,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:20:13,043 INFO L87 Difference]: Start difference. First operand 3943 states and 4950 transitions. Second operand 3 states. [2019-10-15 00:20:13,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:20:13,851 INFO L93 Difference]: Finished difference Result 3946 states and 4952 transitions. [2019-10-15 00:20:13,852 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:20:13,852 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 275 [2019-10-15 00:20:13,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:20:13,864 INFO L225 Difference]: With dead ends: 3946 [2019-10-15 00:20:13,865 INFO L226 Difference]: Without dead ends: 3943 [2019-10-15 00:20:13,866 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:20:13,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3943 states. [2019-10-15 00:20:13,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3943 to 3943. [2019-10-15 00:20:13,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3943 states. [2019-10-15 00:20:13,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3943 states to 3943 states and 4942 transitions. [2019-10-15 00:20:13,997 INFO L78 Accepts]: Start accepts. Automaton has 3943 states and 4942 transitions. Word has length 275 [2019-10-15 00:20:13,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:20:13,998 INFO L462 AbstractCegarLoop]: Abstraction has 3943 states and 4942 transitions. [2019-10-15 00:20:13,998 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:20:13,999 INFO L276 IsEmpty]: Start isEmpty. Operand 3943 states and 4942 transitions. [2019-10-15 00:20:14,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2019-10-15 00:20:14,005 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:20:14,006 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 00:20:14,006 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:20:14,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:20:14,007 INFO L82 PathProgramCache]: Analyzing trace with hash -1903419065, now seen corresponding path program 1 times [2019-10-15 00:20:14,007 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:20:14,007 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281888027] [2019-10-15 00:20:14,007 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:20:14,007 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:20:14,007 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:20:14,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:20:14,451 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2019-10-15 00:20:14,454 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281888027] [2019-10-15 00:20:14,454 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:20:14,455 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 00:20:14,455 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581584957] [2019-10-15 00:20:14,456 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 00:20:14,456 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:20:14,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 00:20:14,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 00:20:14,458 INFO L87 Difference]: Start difference. First operand 3943 states and 4942 transitions. Second operand 7 states. [2019-10-15 00:20:14,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:20:14,569 INFO L93 Difference]: Finished difference Result 3951 states and 4950 transitions. [2019-10-15 00:20:14,570 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 00:20:14,570 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 275 [2019-10-15 00:20:14,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:20:14,571 INFO L225 Difference]: With dead ends: 3951 [2019-10-15 00:20:14,571 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 00:20:14,582 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 00:20:14,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 00:20:14,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 00:20:14,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 00:20:14,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 00:20:14,584 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 275 [2019-10-15 00:20:14,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:20:14,584 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 00:20:14,584 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 00:20:14,584 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 00:20:14,584 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 00:20:14,590 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 00:20:17,307 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 31 [2019-10-15 00:20:17,638 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 34 [2019-10-15 00:20:18,327 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 34 [2019-10-15 00:20:18,546 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 31 [2019-10-15 00:20:18,682 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 23 [2019-10-15 00:20:19,142 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 34 [2019-10-15 00:20:20,061 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 23 [2019-10-15 00:20:20,195 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 31 [2019-10-15 00:20:20,383 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 31 [2019-10-15 00:20:20,924 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 31 [2019-10-15 00:20:21,099 WARN L191 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 34 [2019-10-15 00:20:21,217 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 23 [2019-10-15 00:20:21,763 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 31 [2019-10-15 00:20:22,014 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 31 [2019-10-15 00:20:22,421 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 23 [2019-10-15 00:20:23,367 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 23 [2019-10-15 00:20:23,562 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 23