java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/ldv-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 02:08:37,461 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 02:08:37,464 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 02:08:37,481 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 02:08:37,481 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 02:08:37,483 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 02:08:37,485 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 02:08:37,498 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 02:08:37,500 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 02:08:37,501 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 02:08:37,502 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 02:08:37,505 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 02:08:37,505 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 02:08:37,508 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 02:08:37,511 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 02:08:37,513 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 02:08:37,514 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 02:08:37,518 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 02:08:37,521 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 02:08:37,525 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 02:08:37,530 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 02:08:37,531 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 02:08:37,532 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 02:08:37,533 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 02:08:37,537 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 02:08:37,537 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 02:08:37,537 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 02:08:37,539 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 02:08:37,541 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 02:08:37,543 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 02:08:37,543 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 02:08:37,545 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 02:08:37,546 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 02:08:37,547 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 02:08:37,549 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 02:08:37,549 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 02:08:37,549 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 02:08:37,550 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 02:08:37,550 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 02:08:37,552 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 02:08:37,555 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 02:08:37,555 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 02:08:37,569 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 02:08:37,570 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 02:08:37,571 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 02:08:37,571 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 02:08:37,571 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 02:08:37,572 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 02:08:37,572 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 02:08:37,572 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 02:08:37,572 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 02:08:37,572 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 02:08:37,573 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 02:08:37,573 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 02:08:37,573 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 02:08:37,573 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 02:08:37,573 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 02:08:37,574 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 02:08:37,574 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 02:08:37,574 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 02:08:37,574 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 02:08:37,575 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 02:08:37,575 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 02:08:37,575 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 02:08:37,575 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 02:08:37,575 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 02:08:37,576 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 02:08:37,576 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 02:08:37,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 02:08:37,576 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 02:08:37,576 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-15 02:08:37,878 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 02:08:37,892 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 02:08:37,895 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 02:08:37,897 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 02:08:37,897 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 02:08:37,898 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--phantom.ko-main.cil.out.i [2019-10-15 02:08:37,964 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1dcb92658/0e1b94807b5542708d0d53441b52a449/FLAGe0df3a59a [2019-10-15 02:08:38,723 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 02:08:38,725 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--phantom.ko-main.cil.out.i [2019-10-15 02:08:38,776 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1dcb92658/0e1b94807b5542708d0d53441b52a449/FLAGe0df3a59a [2019-10-15 02:08:38,821 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1dcb92658/0e1b94807b5542708d0d53441b52a449 [2019-10-15 02:08:38,833 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 02:08:38,835 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 02:08:38,837 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 02:08:38,837 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 02:08:38,841 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 02:08:38,842 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:08:38" (1/1) ... [2019-10-15 02:08:38,845 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19829b9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:08:38, skipping insertion in model container [2019-10-15 02:08:38,845 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:08:38" (1/1) ... [2019-10-15 02:08:38,854 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 02:08:38,971 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 02:08:40,373 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 02:08:40,411 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 02:08:40,692 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 02:08:40,887 INFO L192 MainTranslator]: Completed translation [2019-10-15 02:08:40,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:08:40 WrapperNode [2019-10-15 02:08:40,888 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 02:08:40,889 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 02:08:40,889 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 02:08:40,889 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 02:08:40,904 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:08:40" (1/1) ... [2019-10-15 02:08:40,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:08:40" (1/1) ... [2019-10-15 02:08:40,950 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:08:40" (1/1) ... [2019-10-15 02:08:40,951 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:08:40" (1/1) ... [2019-10-15 02:08:41,062 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:08:40" (1/1) ... [2019-10-15 02:08:41,089 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:08:40" (1/1) ... [2019-10-15 02:08:41,118 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:08:40" (1/1) ... [2019-10-15 02:08:41,154 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 02:08:41,156 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 02:08:41,156 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 02:08:41,156 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 02:08:41,160 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:08:40" (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 02:08:41,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 02:08:41,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 02:08:41,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2019-10-15 02:08:41,222 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-10-15 02:08:41,223 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-10-15 02:08:41,223 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2019-10-15 02:08:41,223 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2019-10-15 02:08:41,223 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2019-10-15 02:08:41,225 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-10-15 02:08:41,225 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2019-10-15 02:08:41,226 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2019-10-15 02:08:41,226 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-10-15 02:08:41,227 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2019-10-15 02:08:41,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-15 02:08:41,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-15 02:08:41,227 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-15 02:08:41,230 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-15 02:08:41,230 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-15 02:08:41,230 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2019-10-15 02:08:41,231 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2019-10-15 02:08:41,231 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2019-10-15 02:08:41,231 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-10-15 02:08:41,231 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2019-10-15 02:08:41,231 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2019-10-15 02:08:41,231 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_status [2019-10-15 02:08:41,231 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_ioctl [2019-10-15 02:08:41,232 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_compat_ioctl [2019-10-15 02:08:41,232 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_open [2019-10-15 02:08:41,232 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_release [2019-10-15 02:08:41,232 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_poll [2019-10-15 02:08:41,232 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_isr [2019-10-15 02:08:41,232 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_get_free [2019-10-15 02:08:41,232 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_probe [2019-10-15 02:08:41,233 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_remove [2019-10-15 02:08:41,233 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_suspend [2019-10-15 02:08:41,233 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_resume [2019-10-15 02:08:41,233 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_init [2019-10-15 02:08:41,233 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_exit [2019-10-15 02:08:41,233 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 02:08:41,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_1 [2019-10-15 02:08:41,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_2 [2019-10-15 02:08:41,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_3 [2019-10-15 02:08:41,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_4 [2019-10-15 02:08:41,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_5 [2019-10-15 02:08:41,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_6 [2019-10-15 02:08:41,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2019-10-15 02:08:41,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_8 [2019-10-15 02:08:41,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_9 [2019-10-15 02:08:41,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_10 [2019-10-15 02:08:41,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2019-10-15 02:08:41,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_12 [2019-10-15 02:08:41,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_13 [2019-10-15 02:08:41,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_14 [2019-10-15 02:08:41,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_15 [2019-10-15 02:08:41,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_16 [2019-10-15 02:08:41,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_cdev_init_17 [2019-10-15 02:08:41,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_cdev_del_18 [2019-10-15 02:08:41,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-15 02:08:41,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-15 02:08:41,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-10-15 02:08:41,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2019-10-15 02:08:41,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2019-10-15 02:08:41,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2019-10-15 02:08:41,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2019-10-15 02:08:41,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2019-10-15 02:08:41,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2019-10-15 02:08:41,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2019-10-15 02:08:41,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2019-10-15 02:08:41,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2019-10-15 02:08:41,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2019-10-15 02:08:41,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2019-10-15 02:08:41,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-10-15 02:08:41,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2019-10-15 02:08:41,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2019-10-15 02:08:41,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-10-15 02:08:41,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2019-10-15 02:08:41,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2019-10-15 02:08:41,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2019-10-15 02:08:41,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-10-15 02:08:41,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2019-10-15 02:08:41,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2019-10-15 02:08:41,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_open_lock_of_phantom_device [2019-10-15 02:08:41,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_open_lock_of_phantom_device [2019-10-15 02:08:41,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_open_lock_of_phantom_device [2019-10-15 02:08:41,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_open_lock_of_phantom_device [2019-10-15 02:08:41,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_open_lock_of_phantom_device [2019-10-15 02:08:41,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_open_lock_of_phantom_device [2019-10-15 02:08:41,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_open_lock_of_phantom_device [2019-10-15 02:08:41,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_phantom_mutex [2019-10-15 02:08:41,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_phantom_mutex [2019-10-15 02:08:41,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_phantom_mutex [2019-10-15 02:08:41,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_phantom_mutex [2019-10-15 02:08:41,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_phantom_mutex [2019-10-15 02:08:41,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_phantom_mutex [2019-10-15 02:08:41,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_phantom_mutex [2019-10-15 02:08:41,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-15 02:08:41,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-15 02:08:41,247 INFO L138 BoogieDeclarations]: Found implementation of procedure __class_create [2019-10-15 02:08:41,247 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2019-10-15 02:08:41,247 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-10-15 02:08:41,248 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2019-10-15 02:08:41,248 INFO L138 BoogieDeclarations]: Found implementation of procedure __pci_register_driver [2019-10-15 02:08:41,248 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-10-15 02:08:41,248 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2019-10-15 02:08:41,248 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2019-10-15 02:08:41,248 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-10-15 02:08:41,248 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2019-10-15 02:08:41,249 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2019-10-15 02:08:41,249 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2019-10-15 02:08:41,249 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-10-15 02:08:41,249 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_chrdev_region [2019-10-15 02:08:41,252 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2019-10-15 02:08:41,253 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_del [2019-10-15 02:08:41,253 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_init [2019-10-15 02:08:41,253 INFO L138 BoogieDeclarations]: Found implementation of procedure class_create_file [2019-10-15 02:08:41,253 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2019-10-15 02:08:41,254 INFO L138 BoogieDeclarations]: Found implementation of procedure class_remove_file [2019-10-15 02:08:41,254 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-10-15 02:08:41,254 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-10-15 02:08:41,255 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-10-15 02:08:41,255 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create [2019-10-15 02:08:41,255 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2019-10-15 02:08:41,255 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2019-10-15 02:08:41,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2019-10-15 02:08:41,256 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2019-10-15 02:08:41,257 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-10-15 02:08:41,257 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2019-10-15 02:08:41,257 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2019-10-15 02:08:41,257 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2019-10-15 02:08:41,257 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-15 02:08:41,257 INFO L138 BoogieDeclarations]: Found implementation of procedure no_llseek [2019-10-15 02:08:41,258 INFO L138 BoogieDeclarations]: Found implementation of procedure nonseekable_open [2019-10-15 02:08:41,258 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2019-10-15 02:08:41,259 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2019-10-15 02:08:41,262 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2019-10-15 02:08:41,262 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2019-10-15 02:08:41,263 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2019-10-15 02:08:41,263 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_request_regions [2019-10-15 02:08:41,264 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2019-10-15 02:08:41,264 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-15 02:08:41,264 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2019-10-15 02:08:41,264 INFO L138 BoogieDeclarations]: Found implementation of procedure show_class_attr_string [2019-10-15 02:08:41,264 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_irq [2019-10-15 02:08:41,265 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2019-10-15 02:08:41,272 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2019-10-15 02:08:41,272 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2019-10-15 02:08:41,273 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-15 02:08:41,273 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-15 02:08:41,273 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-15 02:08:41,274 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 02:08:41,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-15 02:08:41,274 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-15 02:08:41,274 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2019-10-15 02:08:41,275 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-10-15 02:08:41,275 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-15 02:08:41,275 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2019-10-15 02:08:41,275 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2019-10-15 02:08:41,275 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-10-15 02:08:41,275 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-10-15 02:08:41,275 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2019-10-15 02:08:41,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 02:08:41,276 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2019-10-15 02:08:41,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 02:08:41,276 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2019-10-15 02:08:41,277 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2019-10-15 02:08:41,278 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2019-10-15 02:08:41,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_6 [2019-10-15 02:08:41,278 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-15 02:08:41,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_2 [2019-10-15 02:08:41,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_4 [2019-10-15 02:08:41,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2019-10-15 02:08:41,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_10 [2019-10-15 02:08:41,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2019-10-15 02:08:41,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_12 [2019-10-15 02:08:41,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_13 [2019-10-15 02:08:41,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_14 [2019-10-15 02:08:41,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_16 [2019-10-15 02:08:41,279 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2019-10-15 02:08:41,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_9 [2019-10-15 02:08:41,279 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2019-10-15 02:08:41,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_1 [2019-10-15 02:08:41,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_3 [2019-10-15 02:08:41,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_5 [2019-10-15 02:08:41,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_8 [2019-10-15 02:08:41,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_15 [2019-10-15 02:08:41,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2019-10-15 02:08:41,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2019-10-15 02:08:41,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2019-10-15 02:08:41,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2019-10-15 02:08:41,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2019-10-15 02:08:41,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2019-10-15 02:08:41,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2019-10-15 02:08:41,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_open_lock_of_phantom_device [2019-10-15 02:08:41,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_open_lock_of_phantom_device [2019-10-15 02:08:41,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_open_lock_of_phantom_device [2019-10-15 02:08:41,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_phantom_mutex [2019-10-15 02:08:41,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_phantom_mutex [2019-10-15 02:08:41,282 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 02:08:41,283 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-10-15 02:08:41,283 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2019-10-15 02:08:41,283 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2019-10-15 02:08:41,283 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2019-10-15 02:08:41,283 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-10-15 02:08:41,283 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-10-15 02:08:41,283 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2019-10-15 02:08:41,283 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2019-10-15 02:08:41,284 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-10-15 02:08:41,284 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-10-15 02:08:41,284 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2019-10-15 02:08:41,284 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2019-10-15 02:08:41,284 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2019-10-15 02:08:41,284 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2019-10-15 02:08:41,284 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2019-10-15 02:08:41,284 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_chrdev_region [2019-10-15 02:08:41,285 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2019-10-15 02:08:41,285 INFO L130 BoogieDeclarations]: Found specification of procedure no_llseek [2019-10-15 02:08:41,285 INFO L130 BoogieDeclarations]: Found specification of procedure nonseekable_open [2019-10-15 02:08:41,285 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2019-10-15 02:08:41,285 INFO L130 BoogieDeclarations]: Found specification of procedure class_create_file [2019-10-15 02:08:41,285 INFO L130 BoogieDeclarations]: Found specification of procedure class_remove_file [2019-10-15 02:08:41,285 INFO L130 BoogieDeclarations]: Found specification of procedure show_class_attr_string [2019-10-15 02:08:41,285 INFO L130 BoogieDeclarations]: Found specification of procedure __class_create [2019-10-15 02:08:41,286 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2019-10-15 02:08:41,286 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-10-15 02:08:41,286 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-10-15 02:08:41,286 INFO L130 BoogieDeclarations]: Found specification of procedure device_create [2019-10-15 02:08:41,286 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2019-10-15 02:08:41,286 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-10-15 02:08:41,286 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2019-10-15 02:08:41,287 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2019-10-15 02:08:41,287 INFO L130 BoogieDeclarations]: Found specification of procedure pci_request_regions [2019-10-15 02:08:41,287 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2019-10-15 02:08:41,287 INFO L130 BoogieDeclarations]: Found specification of procedure __pci_register_driver [2019-10-15 02:08:41,287 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2019-10-15 02:08:41,287 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-15 02:08:41,287 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-15 02:08:41,287 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 02:08:41,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-15 02:08:41,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-15 02:08:41,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 02:08:41,288 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-15 02:08:41,288 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-15 02:08:41,288 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-15 02:08:41,288 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2019-10-15 02:08:41,289 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2019-10-15 02:08:41,289 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-10-15 02:08:41,289 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2019-10-15 02:08:41,289 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2019-10-15 02:08:41,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 02:08:41,289 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-10-15 02:08:41,289 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2019-10-15 02:08:41,290 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2019-10-15 02:08:41,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 02:08:41,290 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_irq [2019-10-15 02:08:41,290 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2019-10-15 02:08:41,290 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2019-10-15 02:08:41,290 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2019-10-15 02:08:41,290 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_init [2019-10-15 02:08:41,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_cdev_init_17 [2019-10-15 02:08:41,291 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2019-10-15 02:08:41,292 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_del [2019-10-15 02:08:41,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_cdev_del_18 [2019-10-15 02:08:41,296 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_status [2019-10-15 02:08:41,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 02:08:41,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 02:08:41,297 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_ioctl [2019-10-15 02:08:41,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-15 02:08:41,297 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_compat_ioctl [2019-10-15 02:08:41,297 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_open [2019-10-15 02:08:41,297 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_release [2019-10-15 02:08:41,297 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_poll [2019-10-15 02:08:41,298 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_isr [2019-10-15 02:08:41,301 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_get_free [2019-10-15 02:08:41,302 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_probe [2019-10-15 02:08:41,302 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_remove [2019-10-15 02:08:41,302 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_suspend [2019-10-15 02:08:41,302 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_resume [2019-10-15 02:08:41,303 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_init [2019-10-15 02:08:41,303 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_exit [2019-10-15 02:08:41,303 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-15 02:08:41,303 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-15 02:08:41,303 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 02:08:41,303 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-15 02:08:41,303 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-10-15 02:08:41,303 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2019-10-15 02:08:41,304 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2019-10-15 02:08:41,304 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2019-10-15 02:08:41,304 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2019-10-15 02:08:41,304 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2019-10-15 02:08:41,304 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2019-10-15 02:08:41,304 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2019-10-15 02:08:41,304 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2019-10-15 02:08:41,304 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-10-15 02:08:41,304 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2019-10-15 02:08:41,305 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-10-15 02:08:41,305 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2019-10-15 02:08:41,305 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-10-15 02:08:41,305 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2019-10-15 02:08:41,305 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_open_lock_of_phantom_device [2019-10-15 02:08:41,305 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_open_lock_of_phantom_device [2019-10-15 02:08:41,305 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_open_lock_of_phantom_device [2019-10-15 02:08:41,306 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_open_lock_of_phantom_device [2019-10-15 02:08:41,306 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_phantom_mutex [2019-10-15 02:08:41,306 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_phantom_mutex [2019-10-15 02:08:41,306 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_phantom_mutex [2019-10-15 02:08:41,306 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_phantom_mutex [2019-10-15 02:08:41,306 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_phantom_mutex [2019-10-15 02:08:41,306 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-15 02:08:41,306 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-15 02:08:41,306 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-15 02:08:41,307 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-10-15 02:08:41,307 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-15 02:08:41,307 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 02:08:41,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 02:08:41,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 02:08:41,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-15 02:08:41,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 02:08:41,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-15 02:08:41,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-15 02:08:41,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-15 02:08:41,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-15 02:08:48,258 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 02:08:48,258 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-15 02:08:48,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:08:48 BoogieIcfgContainer [2019-10-15 02:08:48,260 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 02:08:48,262 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 02:08:48,262 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 02:08:48,265 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 02:08:48,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:08:38" (1/3) ... [2019-10-15 02:08:48,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@538c0895 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:08:48, skipping insertion in model container [2019-10-15 02:08:48,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:08:40" (2/3) ... [2019-10-15 02:08:48,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@538c0895 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:08:48, skipping insertion in model container [2019-10-15 02:08:48,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:08:48" (3/3) ... [2019-10-15 02:08:48,268 INFO L109 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--misc--phantom.ko-main.cil.out.i [2019-10-15 02:08:48,278 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 02:08:48,288 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 02:08:48,300 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 02:08:48,333 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 02:08:48,333 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 02:08:48,333 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 02:08:48,333 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 02:08:48,334 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 02:08:48,334 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 02:08:48,334 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 02:08:48,334 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 02:08:48,370 INFO L276 IsEmpty]: Start isEmpty. Operand 773 states. [2019-10-15 02:08:48,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-15 02:08:48,379 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:08:48,381 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] [2019-10-15 02:08:48,383 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:08:48,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:08:48,389 INFO L82 PathProgramCache]: Analyzing trace with hash 2074278368, now seen corresponding path program 1 times [2019-10-15 02:08:48,399 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:08:48,399 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945218290] [2019-10-15 02:08:48,400 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:08:48,400 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:08:48,400 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:08:48,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:08:49,065 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 02:08:49,066 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945218290] [2019-10-15 02:08:49,067 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:08:49,067 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:08:49,067 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019207977] [2019-10-15 02:08:49,072 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:08:49,073 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:08:49,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:08:49,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:08:49,087 INFO L87 Difference]: Start difference. First operand 773 states. Second operand 3 states. [2019-10-15 02:08:49,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:08:49,519 INFO L93 Difference]: Finished difference Result 1578 states and 2052 transitions. [2019-10-15 02:08:49,519 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:08:49,521 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2019-10-15 02:08:49,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:08:49,548 INFO L225 Difference]: With dead ends: 1578 [2019-10-15 02:08:49,548 INFO L226 Difference]: Without dead ends: 911 [2019-10-15 02:08:49,558 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 02:08:49,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 911 states. [2019-10-15 02:08:49,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 911 to 874. [2019-10-15 02:08:49,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 874 states. [2019-10-15 02:08:49,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 874 states to 874 states and 1109 transitions. [2019-10-15 02:08:49,723 INFO L78 Accepts]: Start accepts. Automaton has 874 states and 1109 transitions. Word has length 25 [2019-10-15 02:08:49,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:08:49,724 INFO L462 AbstractCegarLoop]: Abstraction has 874 states and 1109 transitions. [2019-10-15 02:08:49,724 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:08:49,724 INFO L276 IsEmpty]: Start isEmpty. Operand 874 states and 1109 transitions. [2019-10-15 02:08:49,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-10-15 02:08:49,733 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:08:49,733 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] [2019-10-15 02:08:49,734 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:08:49,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:08:49,734 INFO L82 PathProgramCache]: Analyzing trace with hash -1615595574, now seen corresponding path program 1 times [2019-10-15 02:08:49,734 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:08:49,735 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132344385] [2019-10-15 02:08:49,735 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:08:49,735 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:08:49,735 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:08:49,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:08:49,948 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 02:08:49,949 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132344385] [2019-10-15 02:08:49,950 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:08:49,950 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:08:49,950 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683934886] [2019-10-15 02:08:49,956 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:08:49,956 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:08:49,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:08:49,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:08:49,957 INFO L87 Difference]: Start difference. First operand 874 states and 1109 transitions. Second operand 3 states. [2019-10-15 02:08:51,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:08:51,077 INFO L93 Difference]: Finished difference Result 2486 states and 3159 transitions. [2019-10-15 02:08:51,077 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:08:51,077 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 40 [2019-10-15 02:08:51,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:08:51,090 INFO L225 Difference]: With dead ends: 2486 [2019-10-15 02:08:51,091 INFO L226 Difference]: Without dead ends: 1621 [2019-10-15 02:08:51,096 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 02:08:51,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1621 states. [2019-10-15 02:08:51,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1621 to 1614. [2019-10-15 02:08:51,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1614 states. [2019-10-15 02:08:51,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1614 states to 1614 states and 2047 transitions. [2019-10-15 02:08:51,215 INFO L78 Accepts]: Start accepts. Automaton has 1614 states and 2047 transitions. Word has length 40 [2019-10-15 02:08:51,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:08:51,216 INFO L462 AbstractCegarLoop]: Abstraction has 1614 states and 2047 transitions. [2019-10-15 02:08:51,216 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:08:51,216 INFO L276 IsEmpty]: Start isEmpty. Operand 1614 states and 2047 transitions. [2019-10-15 02:08:51,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-10-15 02:08:51,229 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:08:51,229 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] [2019-10-15 02:08:51,229 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:08:51,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:08:51,230 INFO L82 PathProgramCache]: Analyzing trace with hash -1852843633, now seen corresponding path program 1 times [2019-10-15 02:08:51,230 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:08:51,230 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303288852] [2019-10-15 02:08:51,230 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:08:51,231 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:08:51,231 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:08:51,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:08:51,467 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 02:08:51,468 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303288852] [2019-10-15 02:08:51,469 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:08:51,469 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:08:51,469 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999117640] [2019-10-15 02:08:51,470 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:08:51,471 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:08:51,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:08:51,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:08:51,472 INFO L87 Difference]: Start difference. First operand 1614 states and 2047 transitions. Second operand 3 states. [2019-10-15 02:08:52,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:08:52,203 INFO L93 Difference]: Finished difference Result 1616 states and 2048 transitions. [2019-10-15 02:08:52,204 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:08:52,204 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2019-10-15 02:08:52,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:08:52,216 INFO L225 Difference]: With dead ends: 1616 [2019-10-15 02:08:52,216 INFO L226 Difference]: Without dead ends: 1613 [2019-10-15 02:08:52,217 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 02:08:52,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1613 states. [2019-10-15 02:08:52,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1613 to 1613. [2019-10-15 02:08:52,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1613 states. [2019-10-15 02:08:52,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1613 states to 1613 states and 2045 transitions. [2019-10-15 02:08:52,319 INFO L78 Accepts]: Start accepts. Automaton has 1613 states and 2045 transitions. Word has length 48 [2019-10-15 02:08:52,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:08:52,320 INFO L462 AbstractCegarLoop]: Abstraction has 1613 states and 2045 transitions. [2019-10-15 02:08:52,320 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:08:52,320 INFO L276 IsEmpty]: Start isEmpty. Operand 1613 states and 2045 transitions. [2019-10-15 02:08:52,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-10-15 02:08:52,323 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:08:52,323 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] [2019-10-15 02:08:52,323 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:08:52,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:08:52,324 INFO L82 PathProgramCache]: Analyzing trace with hash -1604320674, now seen corresponding path program 1 times [2019-10-15 02:08:52,324 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:08:52,324 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256287417] [2019-10-15 02:08:52,325 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:08:52,325 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:08:52,325 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:08:52,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:08:52,553 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 02:08:52,554 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256287417] [2019-10-15 02:08:52,554 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:08:52,555 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:08:52,555 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784105430] [2019-10-15 02:08:52,555 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:08:52,555 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:08:52,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:08:52,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:08:52,556 INFO L87 Difference]: Start difference. First operand 1613 states and 2045 transitions. Second operand 3 states. [2019-10-15 02:08:53,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:08:53,229 INFO L93 Difference]: Finished difference Result 1615 states and 2046 transitions. [2019-10-15 02:08:53,229 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:08:53,229 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 49 [2019-10-15 02:08:53,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:08:53,240 INFO L225 Difference]: With dead ends: 1615 [2019-10-15 02:08:53,241 INFO L226 Difference]: Without dead ends: 1612 [2019-10-15 02:08:53,242 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 02:08:53,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1612 states. [2019-10-15 02:08:53,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1612 to 1612. [2019-10-15 02:08:53,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1612 states. [2019-10-15 02:08:53,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1612 states to 1612 states and 2043 transitions. [2019-10-15 02:08:53,326 INFO L78 Accepts]: Start accepts. Automaton has 1612 states and 2043 transitions. Word has length 49 [2019-10-15 02:08:53,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:08:53,328 INFO L462 AbstractCegarLoop]: Abstraction has 1612 states and 2043 transitions. [2019-10-15 02:08:53,328 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:08:53,328 INFO L276 IsEmpty]: Start isEmpty. Operand 1612 states and 2043 transitions. [2019-10-15 02:08:53,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2019-10-15 02:08:53,330 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:08:53,330 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 02:08:53,331 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:08:53,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:08:53,331 INFO L82 PathProgramCache]: Analyzing trace with hash 1804928626, now seen corresponding path program 1 times [2019-10-15 02:08:53,331 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:08:53,331 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868847355] [2019-10-15 02:08:53,332 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:08:53,332 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:08:53,332 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:08:53,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:08:53,507 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 02:08:53,508 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868847355] [2019-10-15 02:08:53,508 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:08:53,508 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:08:53,509 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114114056] [2019-10-15 02:08:53,510 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:08:53,510 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:08:53,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:08:53,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:08:53,511 INFO L87 Difference]: Start difference. First operand 1612 states and 2043 transitions. Second operand 3 states. [2019-10-15 02:08:54,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:08:54,352 INFO L93 Difference]: Finished difference Result 1614 states and 2044 transitions. [2019-10-15 02:08:54,353 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:08:54,353 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 50 [2019-10-15 02:08:54,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:08:54,366 INFO L225 Difference]: With dead ends: 1614 [2019-10-15 02:08:54,366 INFO L226 Difference]: Without dead ends: 1611 [2019-10-15 02:08:54,367 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 02:08:54,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1611 states. [2019-10-15 02:08:54,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1611 to 1611. [2019-10-15 02:08:54,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1611 states. [2019-10-15 02:08:54,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1611 states to 1611 states and 2041 transitions. [2019-10-15 02:08:54,586 INFO L78 Accepts]: Start accepts. Automaton has 1611 states and 2041 transitions. Word has length 50 [2019-10-15 02:08:54,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:08:54,587 INFO L462 AbstractCegarLoop]: Abstraction has 1611 states and 2041 transitions. [2019-10-15 02:08:54,587 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:08:54,587 INFO L276 IsEmpty]: Start isEmpty. Operand 1611 states and 2041 transitions. [2019-10-15 02:08:54,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-15 02:08:54,589 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:08:54,590 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] [2019-10-15 02:08:54,590 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:08:54,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:08:54,590 INFO L82 PathProgramCache]: Analyzing trace with hash 117479393, now seen corresponding path program 1 times [2019-10-15 02:08:54,591 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:08:54,591 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058652960] [2019-10-15 02:08:54,591 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:08:54,591 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:08:54,591 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:08:54,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:08:54,744 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 02:08:54,745 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058652960] [2019-10-15 02:08:54,745 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:08:54,745 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:08:54,745 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842977850] [2019-10-15 02:08:54,746 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:08:54,747 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:08:54,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:08:54,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:08:54,748 INFO L87 Difference]: Start difference. First operand 1611 states and 2041 transitions. Second operand 3 states. [2019-10-15 02:08:55,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:08:55,521 INFO L93 Difference]: Finished difference Result 3070 states and 3903 transitions. [2019-10-15 02:08:55,522 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:08:55,522 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2019-10-15 02:08:55,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:08:55,541 INFO L225 Difference]: With dead ends: 3070 [2019-10-15 02:08:55,541 INFO L226 Difference]: Without dead ends: 3065 [2019-10-15 02:08:55,544 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 02:08:55,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3065 states. [2019-10-15 02:08:55,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3065 to 3061. [2019-10-15 02:08:55,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3061 states. [2019-10-15 02:08:55,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3061 states to 3061 states and 3891 transitions. [2019-10-15 02:08:55,726 INFO L78 Accepts]: Start accepts. Automaton has 3061 states and 3891 transitions. Word has length 51 [2019-10-15 02:08:55,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:08:55,728 INFO L462 AbstractCegarLoop]: Abstraction has 3061 states and 3891 transitions. [2019-10-15 02:08:55,728 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:08:55,728 INFO L276 IsEmpty]: Start isEmpty. Operand 3061 states and 3891 transitions. [2019-10-15 02:08:55,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-15 02:08:55,730 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:08:55,730 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] [2019-10-15 02:08:55,730 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:08:55,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:08:55,730 INFO L82 PathProgramCache]: Analyzing trace with hash -653834411, now seen corresponding path program 1 times [2019-10-15 02:08:55,731 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:08:55,731 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522551818] [2019-10-15 02:08:55,731 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:08:55,731 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:08:55,731 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:08:55,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:08:55,877 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 02:08:55,878 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522551818] [2019-10-15 02:08:55,878 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:08:55,879 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:08:55,879 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878002288] [2019-10-15 02:08:55,879 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:08:55,879 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:08:55,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:08:55,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:08:55,880 INFO L87 Difference]: Start difference. First operand 3061 states and 3891 transitions. Second operand 3 states. [2019-10-15 02:08:56,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:08:56,898 INFO L93 Difference]: Finished difference Result 3090 states and 3910 transitions. [2019-10-15 02:08:56,899 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:08:56,899 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-10-15 02:08:56,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:08:56,920 INFO L225 Difference]: With dead ends: 3090 [2019-10-15 02:08:56,920 INFO L226 Difference]: Without dead ends: 3041 [2019-10-15 02:08:56,922 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 02:08:56,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3041 states. [2019-10-15 02:08:57,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3041 to 3038. [2019-10-15 02:08:57,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3038 states. [2019-10-15 02:08:57,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3038 states to 3038 states and 3850 transitions. [2019-10-15 02:08:57,138 INFO L78 Accepts]: Start accepts. Automaton has 3038 states and 3850 transitions. Word has length 52 [2019-10-15 02:08:57,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:08:57,139 INFO L462 AbstractCegarLoop]: Abstraction has 3038 states and 3850 transitions. [2019-10-15 02:08:57,139 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:08:57,139 INFO L276 IsEmpty]: Start isEmpty. Operand 3038 states and 3850 transitions. [2019-10-15 02:08:57,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2019-10-15 02:08:57,145 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:08:57,146 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2019-10-15 02:08:57,146 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:08:57,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:08:57,146 INFO L82 PathProgramCache]: Analyzing trace with hash 610273958, now seen corresponding path program 1 times [2019-10-15 02:08:57,147 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:08:57,147 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775149094] [2019-10-15 02:08:57,147 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:08:57,147 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:08:57,147 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:08:57,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:08:57,337 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-15 02:08:57,338 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775149094] [2019-10-15 02:08:57,338 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:08:57,338 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:08:57,338 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449604668] [2019-10-15 02:08:57,339 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:08:57,339 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:08:57,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:08:57,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:08:57,340 INFO L87 Difference]: Start difference. First operand 3038 states and 3850 transitions. Second operand 3 states. [2019-10-15 02:08:57,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:08:57,607 INFO L93 Difference]: Finished difference Result 5669 states and 7177 transitions. [2019-10-15 02:08:57,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:08:57,608 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 184 [2019-10-15 02:08:57,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:08:57,625 INFO L225 Difference]: With dead ends: 5669 [2019-10-15 02:08:57,625 INFO L226 Difference]: Without dead ends: 2640 [2019-10-15 02:08:57,638 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 02:08:57,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2640 states. [2019-10-15 02:08:57,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2640 to 2399. [2019-10-15 02:08:57,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2399 states. [2019-10-15 02:08:57,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2399 states to 2399 states and 3075 transitions. [2019-10-15 02:08:57,766 INFO L78 Accepts]: Start accepts. Automaton has 2399 states and 3075 transitions. Word has length 184 [2019-10-15 02:08:57,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:08:57,766 INFO L462 AbstractCegarLoop]: Abstraction has 2399 states and 3075 transitions. [2019-10-15 02:08:57,766 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:08:57,766 INFO L276 IsEmpty]: Start isEmpty. Operand 2399 states and 3075 transitions. [2019-10-15 02:08:57,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2019-10-15 02:08:57,772 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:08:57,773 INFO L380 BasicCegarLoop]: trace histogram [4, 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] [2019-10-15 02:08:57,773 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:08:57,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:08:57,773 INFO L82 PathProgramCache]: Analyzing trace with hash -804080639, now seen corresponding path program 1 times [2019-10-15 02:08:57,774 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:08:57,774 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262101427] [2019-10-15 02:08:57,774 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:08:57,774 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:08:57,774 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:08:57,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:08:58,216 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-10-15 02:08:58,217 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262101427] [2019-10-15 02:08:58,217 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:08:58,217 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:08:58,218 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101434785] [2019-10-15 02:08:58,218 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:08:58,219 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:08:58,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:08:58,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:08:58,219 INFO L87 Difference]: Start difference. First operand 2399 states and 3075 transitions. Second operand 3 states. [2019-10-15 02:08:59,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:08:59,703 INFO L93 Difference]: Finished difference Result 5490 states and 7031 transitions. [2019-10-15 02:08:59,704 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:08:59,704 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 219 [2019-10-15 02:08:59,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:08:59,730 INFO L225 Difference]: With dead ends: 5490 [2019-10-15 02:08:59,730 INFO L226 Difference]: Without dead ends: 3119 [2019-10-15 02:08:59,742 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 02:08:59,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3119 states. [2019-10-15 02:08:59,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3119 to 3051. [2019-10-15 02:08:59,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3051 states. [2019-10-15 02:08:59,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3051 states to 3051 states and 3890 transitions. [2019-10-15 02:08:59,899 INFO L78 Accepts]: Start accepts. Automaton has 3051 states and 3890 transitions. Word has length 219 [2019-10-15 02:08:59,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:08:59,901 INFO L462 AbstractCegarLoop]: Abstraction has 3051 states and 3890 transitions. [2019-10-15 02:08:59,901 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:08:59,901 INFO L276 IsEmpty]: Start isEmpty. Operand 3051 states and 3890 transitions. [2019-10-15 02:08:59,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2019-10-15 02:08:59,907 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:08:59,908 INFO L380 BasicCegarLoop]: trace histogram [4, 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] [2019-10-15 02:08:59,908 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:08:59,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:08:59,908 INFO L82 PathProgramCache]: Analyzing trace with hash 2103352101, now seen corresponding path program 1 times [2019-10-15 02:08:59,909 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:08:59,909 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778207690] [2019-10-15 02:08:59,910 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:08:59,910 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:08:59,910 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:09:00,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:09:00,186 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-10-15 02:09:00,187 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778207690] [2019-10-15 02:09:00,188 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:09:00,188 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:09:00,188 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991844600] [2019-10-15 02:09:00,189 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:09:00,189 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:09:00,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:09:00,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:09:00,195 INFO L87 Difference]: Start difference. First operand 3051 states and 3890 transitions. Second operand 3 states. [2019-10-15 02:09:01,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:09:01,038 INFO L93 Difference]: Finished difference Result 3056 states and 3893 transitions. [2019-10-15 02:09:01,039 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:09:01,039 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 230 [2019-10-15 02:09:01,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:09:01,058 INFO L225 Difference]: With dead ends: 3056 [2019-10-15 02:09:01,058 INFO L226 Difference]: Without dead ends: 3053 [2019-10-15 02:09:01,061 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 02:09:01,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3053 states. [2019-10-15 02:09:01,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3053 to 3050. [2019-10-15 02:09:01,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3050 states. [2019-10-15 02:09:01,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3050 states to 3050 states and 3885 transitions. [2019-10-15 02:09:01,241 INFO L78 Accepts]: Start accepts. Automaton has 3050 states and 3885 transitions. Word has length 230 [2019-10-15 02:09:01,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:09:01,242 INFO L462 AbstractCegarLoop]: Abstraction has 3050 states and 3885 transitions. [2019-10-15 02:09:01,242 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:09:01,242 INFO L276 IsEmpty]: Start isEmpty. Operand 3050 states and 3885 transitions. [2019-10-15 02:09:01,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2019-10-15 02:09:01,252 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:09:01,252 INFO L380 BasicCegarLoop]: trace histogram [4, 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] [2019-10-15 02:09:01,253 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:09:01,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:09:01,253 INFO L82 PathProgramCache]: Analyzing trace with hash -134414782, now seen corresponding path program 1 times [2019-10-15 02:09:01,254 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:09:01,254 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156525856] [2019-10-15 02:09:01,254 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:09:01,255 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:09:01,255 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:09:01,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:09:01,683 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-10-15 02:09:01,684 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156525856] [2019-10-15 02:09:01,684 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:09:01,684 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 02:09:01,684 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197600539] [2019-10-15 02:09:01,686 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 02:09:01,687 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:09:01,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 02:09:01,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2019-10-15 02:09:01,687 INFO L87 Difference]: Start difference. First operand 3050 states and 3885 transitions. Second operand 8 states. [2019-10-15 02:09:10,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:09:10,887 INFO L93 Difference]: Finished difference Result 3106 states and 3948 transitions. [2019-10-15 02:09:10,887 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 02:09:10,887 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 231 [2019-10-15 02:09:10,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:09:10,906 INFO L225 Difference]: With dead ends: 3106 [2019-10-15 02:09:10,906 INFO L226 Difference]: Without dead ends: 3103 [2019-10-15 02:09:10,909 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2019-10-15 02:09:10,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3103 states. [2019-10-15 02:09:11,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3103 to 3103. [2019-10-15 02:09:11,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3103 states. [2019-10-15 02:09:11,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3103 states to 3103 states and 3942 transitions. [2019-10-15 02:09:11,128 INFO L78 Accepts]: Start accepts. Automaton has 3103 states and 3942 transitions. Word has length 231 [2019-10-15 02:09:11,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:09:11,129 INFO L462 AbstractCegarLoop]: Abstraction has 3103 states and 3942 transitions. [2019-10-15 02:09:11,129 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 02:09:11,129 INFO L276 IsEmpty]: Start isEmpty. Operand 3103 states and 3942 transitions. [2019-10-15 02:09:11,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2019-10-15 02:09:11,135 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:09:11,136 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 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] [2019-10-15 02:09:11,136 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:09:11,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:09:11,136 INFO L82 PathProgramCache]: Analyzing trace with hash -1002738725, now seen corresponding path program 1 times [2019-10-15 02:09:11,137 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:09:11,137 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809746670] [2019-10-15 02:09:11,137 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:09:11,137 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:09:11,137 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:09:11,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:09:11,450 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-10-15 02:09:11,451 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809746670] [2019-10-15 02:09:11,451 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [136211958] [2019-10-15 02:09:11,451 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 02:09:12,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:09:12,451 INFO L256 TraceCheckSpWp]: Trace formula consists of 3221 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-15 02:09:12,474 INFO L279 TraceCheckSpWp]: Computing forward predicates...