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-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 22:47:36,012 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 22:47:36,015 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 22:47:36,031 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 22:47:36,031 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 22:47:36,033 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 22:47:36,035 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 22:47:36,049 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 22:47:36,051 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 22:47:36,052 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 22:47:36,054 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 22:47:36,055 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 22:47:36,056 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 22:47:36,059 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 22:47:36,062 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 22:47:36,064 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 22:47:36,066 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 22:47:36,068 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 22:47:36,070 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 22:47:36,075 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 22:47:36,080 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 22:47:36,083 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 22:47:36,084 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 22:47:36,084 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 22:47:36,086 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 22:47:36,087 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 22:47:36,087 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 22:47:36,088 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 22:47:36,088 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 22:47:36,089 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 22:47:36,089 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 22:47:36,090 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 22:47:36,091 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 22:47:36,091 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 22:47:36,092 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 22:47:36,092 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 22:47:36,093 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 22:47:36,093 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 22:47:36,093 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 22:47:36,094 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 22:47:36,095 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 22:47:36,096 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 22:47:36,110 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 22:47:36,110 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 22:47:36,111 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 22:47:36,111 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 22:47:36,112 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 22:47:36,112 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 22:47:36,112 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 22:47:36,112 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 22:47:36,112 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 22:47:36,113 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 22:47:36,113 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 22:47:36,113 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 22:47:36,113 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 22:47:36,113 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 22:47:36,114 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 22:47:36,114 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 22:47:36,114 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 22:47:36,114 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 22:47:36,114 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 22:47:36,115 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 22:47:36,115 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 22:47:36,115 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 22:47:36,115 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 22:47:36,115 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 22:47:36,116 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 22:47:36,116 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 22:47:36,116 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 22:47:36,116 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 22:47:36,116 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-13 22:47:36,407 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 22:47:36,420 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 22:47:36,424 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 22:47:36,425 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 22:47:36,426 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 22:47:36,426 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i [2019-10-13 22:47:36,497 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fe887696/93a41ec6fc60476fb4aadc57ff979522/FLAG718110141 [2019-10-13 22:47:37,323 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 22:47:37,324 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i [2019-10-13 22:47:37,353 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fe887696/93a41ec6fc60476fb4aadc57ff979522/FLAG718110141 [2019-10-13 22:47:37,840 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fe887696/93a41ec6fc60476fb4aadc57ff979522 [2019-10-13 22:47:37,849 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 22:47:37,851 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 22:47:37,852 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 22:47:37,852 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 22:47:37,855 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 22:47:37,856 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:47:37" (1/1) ... [2019-10-13 22:47:37,858 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f56c324 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:47:37, skipping insertion in model container [2019-10-13 22:47:37,858 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:47:37" (1/1) ... [2019-10-13 22:47:37,864 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 22:47:37,979 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 22:47:39,436 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 22:47:39,496 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 22:47:39,828 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 22:47:40,066 INFO L192 MainTranslator]: Completed translation [2019-10-13 22:47:40,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:47:40 WrapperNode [2019-10-13 22:47:40,068 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 22:47:40,068 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 22:47:40,069 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 22:47:40,069 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 22:47:40,085 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:47:40" (1/1) ... [2019-10-13 22:47:40,086 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:47:40" (1/1) ... [2019-10-13 22:47:40,160 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:47:40" (1/1) ... [2019-10-13 22:47:40,160 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:47:40" (1/1) ... [2019-10-13 22:47:40,261 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:47:40" (1/1) ... [2019-10-13 22:47:40,287 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:47:40" (1/1) ... [2019-10-13 22:47:40,322 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:47:40" (1/1) ... [2019-10-13 22:47:40,357 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 22:47:40,358 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 22:47:40,358 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 22:47:40,359 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 22:47:40,361 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:47:40" (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 [2019-10-13 22:47:40,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 22:47:40,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 22:47:40,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-10-13 22:47:40,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2019-10-13 22:47:40,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2019-10-13 22:47:40,435 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2019-10-13 22:47:40,435 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2019-10-13 22:47:40,435 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2019-10-13 22:47:40,435 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2019-10-13 22:47:40,436 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub_and_test [2019-10-13 22:47:40,436 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2019-10-13 22:47:40,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-13 22:47:40,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-13 22:47:40,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-10-13 22:47:40,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-10-13 22:47:40,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-13 22:47:40,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-13 22:47:40,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-13 22:47:40,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-13 22:47:40,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-13 22:47:40,440 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2019-10-13 22:47:40,440 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2019-10-13 22:47:40,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-13 22:47:40,440 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-13 22:47:40,441 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-13 22:47:40,441 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_init [2019-10-13 22:47:40,441 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2019-10-13 22:47:40,441 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2019-10-13 22:47:40,441 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2019-10-13 22:47:40,441 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2019-10-13 22:47:40,441 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2019-10-13 22:47:40,442 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-10-13 22:47:40,442 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-10-13 22:47:40,442 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_write [2019-10-13 22:47:40,442 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_get_drvdata [2019-10-13 22:47:40,442 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_set_drvdata [2019-10-13 22:47:40,442 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_pause_rx [2019-10-13 22:47:40,443 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_continue_rx [2019-10-13 22:47:40,443 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_fasync [2019-10-13 22:47:40,443 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_locate [2019-10-13 22:47:40,443 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_open [2019-10-13 22:47:40,443 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_free [2019-10-13 22:47:40,443 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_release [2019-10-13 22:47:40,444 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_fetch_byte [2019-10-13 22:47:40,444 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_read [2019-10-13 22:47:40,444 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_write [2019-10-13 22:47:40,444 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_poll [2019-10-13 22:47:40,444 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_interrupt [2019-10-13 22:47:40,444 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_connect [2019-10-13 22:47:40,444 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_reconnect [2019-10-13 22:47:40,445 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_hangup [2019-10-13 22:47:40,445 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_disconnect [2019-10-13 22:47:40,445 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_drv_init [2019-10-13 22:47:40,445 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_drv_exit [2019-10-13 22:47:40,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serio_driver_1 [2019-10-13 22:47:40,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_2 [2019-10-13 22:47:40,446 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 22:47:40,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_5 [2019-10-13 22:47:40,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_6 [2019-10-13 22:47:40,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2019-10-13 22:47:40,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_8 [2019-10-13 22:47:40,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_9 [2019-10-13 22:47:40,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_10 [2019-10-13 22:47:40,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2019-10-13 22:47:40,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_12 [2019-10-13 22:47:40,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_13 [2019-10-13 22:47:40,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_14 [2019-10-13 22:47:40,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_15 [2019-10-13 22:47:40,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_16 [2019-10-13 22:47:40,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_17 [2019-10-13 22:47:40,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_misc_register_18 [2019-10-13 22:47:40,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_misc_register_19 [2019-10-13 22:47:40,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_misc_deregister_20 [2019-10-13 22:47:40,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_21 [2019-10-13 22:47:40,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_22 [2019-10-13 22:47:40,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___serio_register_driver_23 [2019-10-13 22:47:40,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serio_unregister_driver_24 [2019-10-13 22:47:40,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-13 22:47:40,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2019-10-13 22:47:40,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-13 22:47:40,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-13 22:47:40,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-13 22:47:40,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-13 22:47:40,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_i_mutex_of_inode [2019-10-13 22:47:40,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_i_mutex_of_inode [2019-10-13 22:47:40,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_i_mutex_of_inode [2019-10-13 22:47:40,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_i_mutex_of_inode [2019-10-13 22:47:40,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2019-10-13 22:47:40,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_i_mutex_of_inode [2019-10-13 22:47:40,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_i_mutex_of_inode [2019-10-13 22:47:40,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_i_mutex_of_inode [2019-10-13 22:47:40,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_i_mutex_of_inode [2019-10-13 22:47:40,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_i_mutex_of_inode [2019-10-13 22:47:40,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_i_mutex_of_inode [2019-10-13 22:47:40,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2019-10-13 22:47:40,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2019-10-13 22:47:40,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2019-10-13 22:47:40,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2019-10-13 22:47:40,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-10-13 22:47:40,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2019-10-13 22:47:40,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2019-10-13 22:47:40,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_lock [2019-10-13 22:47:40,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_lock [2019-10-13 22:47:40,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_lock [2019-10-13 22:47:40,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_lock [2019-10-13 22:47:40,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-10-13 22:47:40,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2019-10-13 22:47:40,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2019-10-13 22:47:40,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2019-10-13 22:47:40,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-10-13 22:47:40,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2019-10-13 22:47:40,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2019-10-13 22:47:40,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_mutex_of_device [2019-10-13 22:47:40,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_mutex_of_device [2019-10-13 22:47:40,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2019-10-13 22:47:40,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_mutex_of_device [2019-10-13 22:47:40,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_serio_raw_mutex [2019-10-13 22:47:40,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_serio_raw_mutex [2019-10-13 22:47:40,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_serio_raw_mutex [2019-10-13 22:47:40,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_serio_raw_mutex [2019-10-13 22:47:40,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_serio_raw_mutex [2019-10-13 22:47:40,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_serio_raw_mutex [2019-10-13 22:47:40,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_serio_raw_mutex [2019-10-13 22:47:40,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_serio_raw_mutex [2019-10-13 22:47:40,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_serio_raw_mutex [2019-10-13 22:47:40,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_serio_raw_mutex [2019-10-13 22:47:40,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_serio_raw_mutex [2019-10-13 22:47:40,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-13 22:47:40,457 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2019-10-13 22:47:40,457 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-10-13 22:47:40,457 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2019-10-13 22:47:40,458 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2019-10-13 22:47:40,458 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2019-10-13 22:47:40,458 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2019-10-13 22:47:40,458 INFO L138 BoogieDeclarations]: Found implementation of procedure __serio_register_driver [2019-10-13 22:47:40,458 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2019-10-13 22:47:40,458 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2019-10-13 22:47:40,458 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irq [2019-10-13 22:47:40,459 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irq [2019-10-13 22:47:40,459 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-10-13 22:47:40,459 INFO L138 BoogieDeclarations]: Found implementation of procedure fasync_helper [2019-10-13 22:47:40,459 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2019-10-13 22:47:40,459 INFO L138 BoogieDeclarations]: Found implementation of procedure get_device [2019-10-13 22:47:40,459 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_fasync [2019-10-13 22:47:40,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-13 22:47:40,460 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2019-10-13 22:47:40,460 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2019-10-13 22:47:40,460 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_register [2019-10-13 22:47:40,460 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2019-10-13 22:47:40,460 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2019-10-13 22:47:40,460 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_killable [2019-10-13 22:47:40,460 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2019-10-13 22:47:40,461 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-13 22:47:40,461 INFO L138 BoogieDeclarations]: Found implementation of procedure noop_llseek [2019-10-13 22:47:40,461 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2019-10-13 22:47:40,461 INFO L138 BoogieDeclarations]: Found implementation of procedure put_device [2019-10-13 22:47:40,461 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2019-10-13 22:47:40,461 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_close [2019-10-13 22:47:40,462 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_open [2019-10-13 22:47:40,462 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_unregister_driver [2019-10-13 22:47:40,462 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2019-10-13 22:47:40,462 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-13 22:47:40,462 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-13 22:47:40,463 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-13 22:47:40,463 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-13 22:47:40,463 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 22:47:40,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-13 22:47:40,463 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2019-10-13 22:47:40,463 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2019-10-13 22:47:40,464 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2019-10-13 22:47:40,464 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2019-10-13 22:47:40,464 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2019-10-13 22:47:40,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 22:47:40,464 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2019-10-13 22:47:40,464 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2019-10-13 22:47:40,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 22:47:40,465 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2019-10-13 22:47:40,465 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2019-10-13 22:47:40,465 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2019-10-13 22:47:40,465 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-13 22:47:40,465 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2019-10-13 22:47:40,465 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2019-10-13 22:47:40,465 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2019-10-13 22:47:40,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 22:47:40,466 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub_and_test [2019-10-13 22:47:40,466 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2019-10-13 22:47:40,466 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2019-10-13 22:47:40,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_10 [2019-10-13 22:47:40,466 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-13 22:47:40,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_6 [2019-10-13 22:47:40,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2019-10-13 22:47:40,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2019-10-13 22:47:40,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_13 [2019-10-13 22:47:40,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_15 [2019-10-13 22:47:40,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_17 [2019-10-13 22:47:40,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_22 [2019-10-13 22:47:40,467 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 22:47:40,468 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 22:47:40,468 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 22:47:40,468 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-13 22:47:40,468 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-13 22:47:40,468 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 22:47:40,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-13 22:47:40,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 22:47:40,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-13 22:47:40,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-13 22:47:40,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-10-13 22:47:40,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-10-13 22:47:40,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-13 22:47:40,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-13 22:47:40,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-13 22:47:40,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-13 22:47:40,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-13 22:47:40,470 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2019-10-13 22:47:40,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_12 [2019-10-13 22:47:40,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_14 [2019-10-13 22:47:40,470 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_killable [2019-10-13 22:47:40,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_16 [2019-10-13 22:47:40,471 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2019-10-13 22:47:40,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_5 [2019-10-13 22:47:40,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_8 [2019-10-13 22:47:40,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_9 [2019-10-13 22:47:40,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_21 [2019-10-13 22:47:40,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_i_mutex_of_inode [2019-10-13 22:47:40,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_i_mutex_of_inode [2019-10-13 22:47:40,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2019-10-13 22:47:40,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2019-10-13 22:47:40,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2019-10-13 22:47:40,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2019-10-13 22:47:40,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2019-10-13 22:47:40,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_serio_raw_mutex [2019-10-13 22:47:40,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_serio_raw_mutex [2019-10-13 22:47:40,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_serio_raw_mutex [2019-10-13 22:47:40,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_serio_raw_mutex [2019-10-13 22:47:40,473 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irq [2019-10-13 22:47:40,473 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irq [2019-10-13 22:47:40,474 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2019-10-13 22:47:40,474 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2019-10-13 22:47:40,474 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-10-13 22:47:40,474 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2019-10-13 22:47:40,474 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2019-10-13 22:47:40,474 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2019-10-13 22:47:40,474 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2019-10-13 22:47:40,475 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-13 22:47:40,475 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-13 22:47:40,475 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-13 22:47:40,475 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-13 22:47:40,475 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serio_driver_1 [2019-10-13 22:47:40,475 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_2 [2019-10-13 22:47:40,475 INFO L130 BoogieDeclarations]: Found specification of procedure kref_init [2019-10-13 22:47:40,476 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2019-10-13 22:47:40,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 22:47:40,476 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2019-10-13 22:47:40,476 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-10-13 22:47:40,476 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2019-10-13 22:47:40,476 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2019-10-13 22:47:40,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 22:47:40,476 INFO L130 BoogieDeclarations]: Found specification of procedure fasync_helper [2019-10-13 22:47:40,477 INFO L130 BoogieDeclarations]: Found specification of procedure kill_fasync [2019-10-13 22:47:40,477 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2019-10-13 22:47:40,477 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2019-10-13 22:47:40,477 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2019-10-13 22:47:40,477 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-10-13 22:47:40,477 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-10-13 22:47:40,478 INFO L130 BoogieDeclarations]: Found specification of procedure get_device [2019-10-13 22:47:40,478 INFO L130 BoogieDeclarations]: Found specification of procedure put_device [2019-10-13 22:47:40,478 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-10-13 22:47:40,478 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2019-10-13 22:47:40,478 INFO L130 BoogieDeclarations]: Found specification of procedure serio_open [2019-10-13 22:47:40,478 INFO L130 BoogieDeclarations]: Found specification of procedure serio_close [2019-10-13 22:47:40,479 INFO L130 BoogieDeclarations]: Found specification of procedure __serio_register_driver [2019-10-13 22:47:40,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___serio_register_driver_23 [2019-10-13 22:47:40,479 INFO L130 BoogieDeclarations]: Found specification of procedure serio_unregister_driver [2019-10-13 22:47:40,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serio_unregister_driver_24 [2019-10-13 22:47:40,479 INFO L130 BoogieDeclarations]: Found specification of procedure serio_write [2019-10-13 22:47:40,479 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2019-10-13 22:47:40,479 INFO L130 BoogieDeclarations]: Found specification of procedure serio_get_drvdata [2019-10-13 22:47:40,479 INFO L130 BoogieDeclarations]: Found specification of procedure serio_set_drvdata [2019-10-13 22:47:40,480 INFO L130 BoogieDeclarations]: Found specification of procedure serio_pause_rx [2019-10-13 22:47:40,480 INFO L130 BoogieDeclarations]: Found specification of procedure serio_continue_rx [2019-10-13 22:47:40,480 INFO L130 BoogieDeclarations]: Found specification of procedure misc_register [2019-10-13 22:47:40,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_misc_register_18 [2019-10-13 22:47:40,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_misc_register_19 [2019-10-13 22:47:40,480 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2019-10-13 22:47:40,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_misc_deregister_20 [2019-10-13 22:47:40,481 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_fasync [2019-10-13 22:47:40,481 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_locate [2019-10-13 22:47:40,481 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_open [2019-10-13 22:47:40,481 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_free [2019-10-13 22:47:40,481 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_release [2019-10-13 22:47:40,481 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_fetch_byte [2019-10-13 22:47:40,482 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_read [2019-10-13 22:47:40,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 22:47:40,482 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_write [2019-10-13 22:47:40,482 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_poll [2019-10-13 22:47:40,482 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_interrupt [2019-10-13 22:47:40,482 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_connect [2019-10-13 22:47:40,482 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_reconnect [2019-10-13 22:47:40,482 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_hangup [2019-10-13 22:47:40,483 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_disconnect [2019-10-13 22:47:40,483 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_drv_init [2019-10-13 22:47:40,483 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_drv_exit [2019-10-13 22:47:40,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-13 22:47:40,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-13 22:47:40,483 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 22:47:40,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-13 22:47:40,484 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2019-10-13 22:47:40,484 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-13 22:47:40,484 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-13 22:47:40,484 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-13 22:47:40,484 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-13 22:47:40,484 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_i_mutex_of_inode [2019-10-13 22:47:40,484 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_i_mutex_of_inode [2019-10-13 22:47:40,484 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_i_mutex_of_inode [2019-10-13 22:47:40,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2019-10-13 22:47:40,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_i_mutex_of_inode [2019-10-13 22:47:40,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_i_mutex_of_inode [2019-10-13 22:47:40,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_i_mutex_of_inode [2019-10-13 22:47:40,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_i_mutex_of_inode [2019-10-13 22:47:40,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_i_mutex_of_inode [2019-10-13 22:47:40,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2019-10-13 22:47:40,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2019-10-13 22:47:40,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2019-10-13 22:47:40,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-10-13 22:47:40,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2019-10-13 22:47:40,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_lock [2019-10-13 22:47:40,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_lock [2019-10-13 22:47:40,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_lock [2019-10-13 22:47:40,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_lock [2019-10-13 22:47:40,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-10-13 22:47:40,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2019-10-13 22:47:40,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-10-13 22:47:40,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2019-10-13 22:47:40,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_mutex_of_device [2019-10-13 22:47:40,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_mutex_of_device [2019-10-13 22:47:40,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2019-10-13 22:47:40,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_mutex_of_device [2019-10-13 22:47:40,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_serio_raw_mutex [2019-10-13 22:47:40,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_serio_raw_mutex [2019-10-13 22:47:40,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_serio_raw_mutex [2019-10-13 22:47:40,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_serio_raw_mutex [2019-10-13 22:47:40,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_serio_raw_mutex [2019-10-13 22:47:40,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_serio_raw_mutex [2019-10-13 22:47:40,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_serio_raw_mutex [2019-10-13 22:47:40,489 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-13 22:47:40,489 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-10-13 22:47:40,489 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 22:47:40,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 22:47:40,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 22:47:40,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 22:47:40,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 22:47:41,406 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-13 22:47:44,546 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 22:47:44,546 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-13 22:47:44,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:47:44 BoogieIcfgContainer [2019-10-13 22:47:44,549 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 22:47:44,550 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 22:47:44,550 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 22:47:44,554 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 22:47:44,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:47:37" (1/3) ... [2019-10-13 22:47:44,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3336bd3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:47:44, skipping insertion in model container [2019-10-13 22:47:44,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:47:40" (2/3) ... [2019-10-13 22:47:44,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3336bd3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:47:44, skipping insertion in model container [2019-10-13 22:47:44,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:47:44" (3/3) ... [2019-10-13 22:47:44,557 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i [2019-10-13 22:47:44,568 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 22:47:44,583 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 22:47:44,596 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 22:47:44,639 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 22:47:44,639 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 22:47:44,639 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 22:47:44,639 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 22:47:44,640 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 22:47:44,640 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 22:47:44,640 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 22:47:44,640 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 22:47:44,692 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states. [2019-10-13 22:47:44,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-10-13 22:47:44,722 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:47:44,724 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:47:44,727 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:47:44,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:47:44,734 INFO L82 PathProgramCache]: Analyzing trace with hash 155852198, now seen corresponding path program 1 times [2019-10-13 22:47:44,745 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:47:44,746 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250277707] [2019-10-13 22:47:44,746 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:47:44,746 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:47:44,747 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:47:45,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:47:45,482 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2019-10-13 22:47:45,486 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250277707] [2019-10-13 22:47:45,487 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:47:45,488 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:47:45,488 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225008302] [2019-10-13 22:47:45,495 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:47:45,495 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:47:45,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:47:45,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:47:45,515 INFO L87 Difference]: Start difference. First operand 798 states. Second operand 3 states. [2019-10-13 22:47:45,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:47:45,860 INFO L93 Difference]: Finished difference Result 1541 states and 1940 transitions. [2019-10-13 22:47:45,860 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:47:45,862 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2019-10-13 22:47:45,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:47:45,899 INFO L225 Difference]: With dead ends: 1541 [2019-10-13 22:47:45,899 INFO L226 Difference]: Without dead ends: 926 [2019-10-13 22:47:45,912 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:47:45,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 926 states. [2019-10-13 22:47:46,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 926 to 891. [2019-10-13 22:47:46,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 891 states. [2019-10-13 22:47:46,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1080 transitions. [2019-10-13 22:47:46,066 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1080 transitions. Word has length 148 [2019-10-13 22:47:46,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:47:46,067 INFO L462 AbstractCegarLoop]: Abstraction has 891 states and 1080 transitions. [2019-10-13 22:47:46,067 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:47:46,067 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1080 transitions. [2019-10-13 22:47:46,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2019-10-13 22:47:46,071 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:47:46,071 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:47:46,071 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:47:46,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:47:46,072 INFO L82 PathProgramCache]: Analyzing trace with hash 1002454400, now seen corresponding path program 1 times [2019-10-13 22:47:46,072 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:47:46,072 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205280965] [2019-10-13 22:47:46,073 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:47:46,073 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:47:46,073 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:47:46,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:47:46,495 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2019-10-13 22:47:46,496 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205280965] [2019-10-13 22:47:46,496 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:47:46,496 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:47:46,497 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551435301] [2019-10-13 22:47:46,500 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:47:46,500 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:47:46,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:47:46,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:47:46,501 INFO L87 Difference]: Start difference. First operand 891 states and 1080 transitions. Second operand 3 states. [2019-10-13 22:47:46,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:47:46,663 INFO L93 Difference]: Finished difference Result 2527 states and 3057 transitions. [2019-10-13 22:47:46,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:47:46,663 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 149 [2019-10-13 22:47:46,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:47:46,676 INFO L225 Difference]: With dead ends: 2527 [2019-10-13 22:47:46,676 INFO L226 Difference]: Without dead ends: 1679 [2019-10-13 22:47:46,680 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:47:46,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1679 states. [2019-10-13 22:47:46,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1679 to 1673. [2019-10-13 22:47:46,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1673 states. [2019-10-13 22:47:46,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1673 states to 1673 states and 2023 transitions. [2019-10-13 22:47:46,803 INFO L78 Accepts]: Start accepts. Automaton has 1673 states and 2023 transitions. Word has length 149 [2019-10-13 22:47:46,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:47:46,807 INFO L462 AbstractCegarLoop]: Abstraction has 1673 states and 2023 transitions. [2019-10-13 22:47:46,807 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:47:46,807 INFO L276 IsEmpty]: Start isEmpty. Operand 1673 states and 2023 transitions. [2019-10-13 22:47:46,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-10-13 22:47:46,809 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:47:46,809 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:47:46,810 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:47:46,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:47:46,810 INFO L82 PathProgramCache]: Analyzing trace with hash 466161229, now seen corresponding path program 1 times [2019-10-13 22:47:46,810 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:47:46,810 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455993568] [2019-10-13 22:47:46,811 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:47:46,811 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:47:46,811 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:47:46,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:47:47,081 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2019-10-13 22:47:47,082 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455993568] [2019-10-13 22:47:47,082 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:47:47,082 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:47:47,082 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523623291] [2019-10-13 22:47:47,083 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:47:47,083 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:47:47,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:47:47,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:47:47,084 INFO L87 Difference]: Start difference. First operand 1673 states and 2023 transitions. Second operand 3 states. [2019-10-13 22:47:47,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:47:47,133 INFO L93 Difference]: Finished difference Result 1675 states and 2024 transitions. [2019-10-13 22:47:47,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:47:47,135 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 154 [2019-10-13 22:47:47,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:47:47,148 INFO L225 Difference]: With dead ends: 1675 [2019-10-13 22:47:47,148 INFO L226 Difference]: Without dead ends: 1672 [2019-10-13 22:47:47,150 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:47:47,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1672 states. [2019-10-13 22:47:47,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1672 to 1672. [2019-10-13 22:47:47,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1672 states. [2019-10-13 22:47:47,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1672 states to 1672 states and 2021 transitions. [2019-10-13 22:47:47,245 INFO L78 Accepts]: Start accepts. Automaton has 1672 states and 2021 transitions. Word has length 154 [2019-10-13 22:47:47,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:47:47,246 INFO L462 AbstractCegarLoop]: Abstraction has 1672 states and 2021 transitions. [2019-10-13 22:47:47,246 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:47:47,246 INFO L276 IsEmpty]: Start isEmpty. Operand 1672 states and 2021 transitions. [2019-10-13 22:47:47,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-10-13 22:47:47,250 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:47:47,250 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:47:47,250 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:47:47,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:47:47,251 INFO L82 PathProgramCache]: Analyzing trace with hash 1565683873, now seen corresponding path program 1 times [2019-10-13 22:47:47,251 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:47:47,251 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784986604] [2019-10-13 22:47:47,252 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:47:47,252 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:47:47,252 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:47:47,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:47:47,592 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2019-10-13 22:47:47,595 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784986604] [2019-10-13 22:47:47,595 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:47:47,595 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:47:47,596 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044033313] [2019-10-13 22:47:47,598 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:47:47,598 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:47:47,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:47:47,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:47:47,602 INFO L87 Difference]: Start difference. First operand 1672 states and 2021 transitions. Second operand 3 states. [2019-10-13 22:47:47,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:47:47,672 INFO L93 Difference]: Finished difference Result 1674 states and 2022 transitions. [2019-10-13 22:47:47,673 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:47:47,673 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 155 [2019-10-13 22:47:47,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:47:47,687 INFO L225 Difference]: With dead ends: 1674 [2019-10-13 22:47:47,687 INFO L226 Difference]: Without dead ends: 1671 [2019-10-13 22:47:47,693 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:47:47,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1671 states. [2019-10-13 22:47:47,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1671 to 1671. [2019-10-13 22:47:47,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1671 states. [2019-10-13 22:47:47,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1671 states to 1671 states and 2019 transitions. [2019-10-13 22:47:47,787 INFO L78 Accepts]: Start accepts. Automaton has 1671 states and 2019 transitions. Word has length 155 [2019-10-13 22:47:47,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:47:47,789 INFO L462 AbstractCegarLoop]: Abstraction has 1671 states and 2019 transitions. [2019-10-13 22:47:47,789 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:47:47,790 INFO L276 IsEmpty]: Start isEmpty. Operand 1671 states and 2019 transitions. [2019-10-13 22:47:47,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-10-13 22:47:47,793 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:47:47,793 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:47:47,794 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:47:47,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:47:47,794 INFO L82 PathProgramCache]: Analyzing trace with hash 1291152336, now seen corresponding path program 1 times [2019-10-13 22:47:47,794 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:47:47,794 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176216810] [2019-10-13 22:47:47,795 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:47:47,795 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:47:47,795 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:47:47,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:47:48,033 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2019-10-13 22:47:48,034 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176216810] [2019-10-13 22:47:48,034 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:47:48,034 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:47:48,034 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935041132] [2019-10-13 22:47:48,035 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:47:48,035 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:47:48,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:47:48,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:47:48,036 INFO L87 Difference]: Start difference. First operand 1671 states and 2019 transitions. Second operand 3 states. [2019-10-13 22:47:48,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:47:48,105 INFO L93 Difference]: Finished difference Result 1673 states and 2020 transitions. [2019-10-13 22:47:48,105 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:47:48,105 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 156 [2019-10-13 22:47:48,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:47:48,115 INFO L225 Difference]: With dead ends: 1673 [2019-10-13 22:47:48,115 INFO L226 Difference]: Without dead ends: 1670 [2019-10-13 22:47:48,119 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:47:48,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1670 states. [2019-10-13 22:47:48,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1670 to 1670. [2019-10-13 22:47:48,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1670 states. [2019-10-13 22:47:48,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1670 states to 1670 states and 2017 transitions. [2019-10-13 22:47:48,212 INFO L78 Accepts]: Start accepts. Automaton has 1670 states and 2017 transitions. Word has length 156 [2019-10-13 22:47:48,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:47:48,212 INFO L462 AbstractCegarLoop]: Abstraction has 1670 states and 2017 transitions. [2019-10-13 22:47:48,212 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:47:48,213 INFO L276 IsEmpty]: Start isEmpty. Operand 1670 states and 2017 transitions. [2019-10-13 22:47:48,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2019-10-13 22:47:48,216 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:47:48,216 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:47:48,217 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:47:48,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:47:48,217 INFO L82 PathProgramCache]: Analyzing trace with hash 592343665, now seen corresponding path program 1 times [2019-10-13 22:47:48,219 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:47:48,219 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925488734] [2019-10-13 22:47:48,219 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:47:48,219 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:47:48,219 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:47:48,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:47:48,581 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2019-10-13 22:47:48,582 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925488734] [2019-10-13 22:47:48,583 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:47:48,583 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:47:48,583 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744182953] [2019-10-13 22:47:48,584 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:47:48,586 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:47:48,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:47:48,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:47:48,590 INFO L87 Difference]: Start difference. First operand 1670 states and 2017 transitions. Second operand 3 states. [2019-10-13 22:47:48,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:47:48,745 INFO L93 Difference]: Finished difference Result 3076 states and 3707 transitions. [2019-10-13 22:47:48,745 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:47:48,745 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 161 [2019-10-13 22:47:48,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:47:48,762 INFO L225 Difference]: With dead ends: 3076 [2019-10-13 22:47:48,763 INFO L226 Difference]: Without dead ends: 1455 [2019-10-13 22:47:48,768 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:47:48,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1455 states. [2019-10-13 22:47:48,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1455 to 1428. [2019-10-13 22:47:48,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1428 states. [2019-10-13 22:47:48,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1720 transitions. [2019-10-13 22:47:48,844 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1720 transitions. Word has length 161 [2019-10-13 22:47:48,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:47:48,845 INFO L462 AbstractCegarLoop]: Abstraction has 1428 states and 1720 transitions. [2019-10-13 22:47:48,845 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:47:48,845 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1720 transitions. [2019-10-13 22:47:48,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2019-10-13 22:47:48,847 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:47:48,847 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:47:48,847 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:47:48,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:47:48,848 INFO L82 PathProgramCache]: Analyzing trace with hash 1370614148, now seen corresponding path program 1 times [2019-10-13 22:47:48,848 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:47:48,848 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686017208] [2019-10-13 22:47:48,848 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:47:48,849 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:47:48,849 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:47:48,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:47:49,063 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2019-10-13 22:47:49,064 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686017208] [2019-10-13 22:47:49,064 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:47:49,064 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:47:49,064 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515347490] [2019-10-13 22:47:49,065 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:47:49,065 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:47:49,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:47:49,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:47:49,065 INFO L87 Difference]: Start difference. First operand 1428 states and 1720 transitions. Second operand 3 states. [2019-10-13 22:47:49,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:47:49,179 INFO L93 Difference]: Finished difference Result 2315 states and 2836 transitions. [2019-10-13 22:47:49,180 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:47:49,180 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 157 [2019-10-13 22:47:49,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:47:49,196 INFO L225 Difference]: With dead ends: 2315 [2019-10-13 22:47:49,197 INFO L226 Difference]: Without dead ends: 2293 [2019-10-13 22:47:49,199 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:47:49,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2293 states. [2019-10-13 22:47:49,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2293 to 2293. [2019-10-13 22:47:49,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2293 states. [2019-10-13 22:47:49,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2293 states to 2293 states and 2801 transitions. [2019-10-13 22:47:49,327 INFO L78 Accepts]: Start accepts. Automaton has 2293 states and 2801 transitions. Word has length 157 [2019-10-13 22:47:49,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:47:49,328 INFO L462 AbstractCegarLoop]: Abstraction has 2293 states and 2801 transitions. [2019-10-13 22:47:49,328 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:47:49,328 INFO L276 IsEmpty]: Start isEmpty. Operand 2293 states and 2801 transitions. [2019-10-13 22:47:49,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2019-10-13 22:47:49,336 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:47:49,336 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 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] [2019-10-13 22:47:49,337 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:47:49,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:47:49,338 INFO L82 PathProgramCache]: Analyzing trace with hash -849498686, now seen corresponding path program 1 times [2019-10-13 22:47:49,338 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:47:49,339 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927914628] [2019-10-13 22:47:49,339 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:47:49,339 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:47:49,340 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:47:49,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:47:49,738 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 3 [2019-10-13 22:47:49,770 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 322 trivial. 0 not checked. [2019-10-13 22:47:49,771 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927914628] [2019-10-13 22:47:49,771 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:47:49,771 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:47:49,771 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767502129] [2019-10-13 22:47:49,773 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:47:49,773 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:47:49,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:47:49,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:47:49,774 INFO L87 Difference]: Start difference. First operand 2293 states and 2801 transitions. Second operand 3 states. [2019-10-13 22:47:50,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:47:50,006 INFO L93 Difference]: Finished difference Result 5395 states and 6612 transitions. [2019-10-13 22:47:50,006 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:47:50,006 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 217 [2019-10-13 22:47:50,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:47:50,031 INFO L225 Difference]: With dead ends: 5395 [2019-10-13 22:47:50,031 INFO L226 Difference]: Without dead ends: 3166 [2019-10-13 22:47:50,042 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:47:50,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3166 states. [2019-10-13 22:47:50,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3166 to 3130. [2019-10-13 22:47:50,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3130 states. [2019-10-13 22:47:50,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3130 states to 3130 states and 3834 transitions. [2019-10-13 22:47:50,273 INFO L78 Accepts]: Start accepts. Automaton has 3130 states and 3834 transitions. Word has length 217 [2019-10-13 22:47:50,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:47:50,276 INFO L462 AbstractCegarLoop]: Abstraction has 3130 states and 3834 transitions. [2019-10-13 22:47:50,276 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:47:50,276 INFO L276 IsEmpty]: Start isEmpty. Operand 3130 states and 3834 transitions. [2019-10-13 22:47:50,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2019-10-13 22:47:50,284 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:47:50,285 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:47:50,285 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:47:50,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:47:50,286 INFO L82 PathProgramCache]: Analyzing trace with hash -917878632, now seen corresponding path program 1 times [2019-10-13 22:47:50,286 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:47:50,286 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489190614] [2019-10-13 22:47:50,287 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:47:50,287 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:47:50,287 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:47:50,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:47:50,670 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2019-10-13 22:47:50,671 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489190614] [2019-10-13 22:47:50,671 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:47:50,671 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:47:50,671 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614276546] [2019-10-13 22:47:50,673 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:47:50,673 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:47:50,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:47:50,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:47:50,674 INFO L87 Difference]: Start difference. First operand 3130 states and 3834 transitions. Second operand 3 states. [2019-10-13 22:47:50,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:47:50,863 INFO L93 Difference]: Finished difference Result 3137 states and 3840 transitions. [2019-10-13 22:47:50,863 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:47:50,863 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 248 [2019-10-13 22:47:50,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:47:50,885 INFO L225 Difference]: With dead ends: 3137 [2019-10-13 22:47:50,886 INFO L226 Difference]: Without dead ends: 3134 [2019-10-13 22:47:50,888 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 [2019-10-13 22:47:50,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3134 states. [2019-10-13 22:47:51,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3134 to 3134. [2019-10-13 22:47:51,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3134 states. [2019-10-13 22:47:51,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3134 states to 3134 states and 3835 transitions. [2019-10-13 22:47:51,129 INFO L78 Accepts]: Start accepts. Automaton has 3134 states and 3835 transitions. Word has length 248 [2019-10-13 22:47:51,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:47:51,130 INFO L462 AbstractCegarLoop]: Abstraction has 3134 states and 3835 transitions. [2019-10-13 22:47:51,130 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:47:51,130 INFO L276 IsEmpty]: Start isEmpty. Operand 3134 states and 3835 transitions. [2019-10-13 22:47:51,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2019-10-13 22:47:51,134 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:47:51,134 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 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] [2019-10-13 22:47:51,135 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:47:51,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:47:51,135 INFO L82 PathProgramCache]: Analyzing trace with hash 1281005145, now seen corresponding path program 1 times [2019-10-13 22:47:51,135 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:47:51,136 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543474042] [2019-10-13 22:47:51,136 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:47:51,136 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:47:51,136 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:47:51,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:47:51,483 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2019-10-13 22:47:51,483 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543474042] [2019-10-13 22:47:51,484 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:47:51,484 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 22:47:51,484 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223154397] [2019-10-13 22:47:51,485 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 22:47:51,485 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:47:51,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 22:47:51,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2019-10-13 22:47:51,487 INFO L87 Difference]: Start difference. First operand 3134 states and 3835 transitions. Second operand 8 states. [2019-10-13 22:47:52,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:47:52,416 INFO L93 Difference]: Finished difference Result 3149 states and 3855 transitions. [2019-10-13 22:47:52,417 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 22:47:52,417 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 255 [2019-10-13 22:47:52,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:47:52,435 INFO L225 Difference]: With dead ends: 3149 [2019-10-13 22:47:52,436 INFO L226 Difference]: Without dead ends: 3146 [2019-10-13 22:47:52,438 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 [2019-10-13 22:47:52,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3146 states. [2019-10-13 22:47:52,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3146 to 3140. [2019-10-13 22:47:52,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3140 states. [2019-10-13 22:47:52,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3140 states to 3140 states and 3839 transitions. [2019-10-13 22:47:52,590 INFO L78 Accepts]: Start accepts. Automaton has 3140 states and 3839 transitions. Word has length 255 [2019-10-13 22:47:52,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:47:52,591 INFO L462 AbstractCegarLoop]: Abstraction has 3140 states and 3839 transitions. [2019-10-13 22:47:52,591 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 22:47:52,591 INFO L276 IsEmpty]: Start isEmpty. Operand 3140 states and 3839 transitions. [2019-10-13 22:47:52,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2019-10-13 22:47:52,596 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:47:52,596 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 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] [2019-10-13 22:47:52,596 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:47:52,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:47:52,597 INFO L82 PathProgramCache]: Analyzing trace with hash 1481698768, now seen corresponding path program 1 times [2019-10-13 22:47:52,597 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:47:52,597 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299325336] [2019-10-13 22:47:52,597 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:47:52,598 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:47:52,598 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:47:52,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:47:53,138 INFO L134 CoverageAnalysis]: Checked inductivity of 332 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 332 trivial. 0 not checked. [2019-10-13 22:47:53,139 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299325336] [2019-10-13 22:47:53,139 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:47:53,139 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 22:47:53,140 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359523872] [2019-10-13 22:47:53,140 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 22:47:53,140 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:47:53,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 22:47:53,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-10-13 22:47:53,142 INFO L87 Difference]: Start difference. First operand 3140 states and 3839 transitions. Second operand 9 states. [2019-10-13 22:47:57,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:47:57,069 INFO L93 Difference]: Finished difference Result 4923 states and 6335 transitions. [2019-10-13 22:47:57,069 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-13 22:47:57,069 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 297 [2019-10-13 22:47:57,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:47:57,099 INFO L225 Difference]: With dead ends: 4923 [2019-10-13 22:47:57,099 INFO L226 Difference]: Without dead ends: 4898 [2019-10-13 22:47:57,102 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2019-10-13 22:47:57,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4898 states. [2019-10-13 22:47:57,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4898 to 4203. [2019-10-13 22:47:57,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4203 states. [2019-10-13 22:47:57,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4203 states to 4203 states and 5156 transitions. [2019-10-13 22:47:57,338 INFO L78 Accepts]: Start accepts. Automaton has 4203 states and 5156 transitions. Word has length 297 [2019-10-13 22:47:57,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:47:57,338 INFO L462 AbstractCegarLoop]: Abstraction has 4203 states and 5156 transitions. [2019-10-13 22:47:57,339 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 22:47:57,339 INFO L276 IsEmpty]: Start isEmpty. Operand 4203 states and 5156 transitions. [2019-10-13 22:47:57,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2019-10-13 22:47:57,347 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:47:57,347 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:47:57,348 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:47:57,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:47:57,348 INFO L82 PathProgramCache]: Analyzing trace with hash 693201300, now seen corresponding path program 1 times [2019-10-13 22:47:57,351 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:47:57,351 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844272014] [2019-10-13 22:47:57,351 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:47:57,351 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:47:57,352 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:47:57,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:47:57,669 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 416 trivial. 0 not checked. [2019-10-13 22:47:57,670 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844272014] [2019-10-13 22:47:57,670 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:47:57,671 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:47:57,671 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823736375] [2019-10-13 22:47:57,672 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:47:57,672 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:47:57,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:47:57,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:47:57,673 INFO L87 Difference]: Start difference. First operand 4203 states and 5156 transitions. Second operand 3 states. [2019-10-13 22:47:58,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:47:58,055 INFO L93 Difference]: Finished difference Result 9853 states and 12115 transitions. [2019-10-13 22:47:58,056 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:47:58,056 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 330 [2019-10-13 22:47:58,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:47:58,094 INFO L225 Difference]: With dead ends: 9853 [2019-10-13 22:47:58,094 INFO L226 Difference]: Without dead ends: 5714 [2019-10-13 22:47:58,108 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:47:58,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5714 states. [2019-10-13 22:47:58,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5714 to 5633. [2019-10-13 22:47:58,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5633 states. [2019-10-13 22:47:58,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5633 states to 5633 states and 6858 transitions. [2019-10-13 22:47:58,339 INFO L78 Accepts]: Start accepts. Automaton has 5633 states and 6858 transitions. Word has length 330 [2019-10-13 22:47:58,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:47:58,340 INFO L462 AbstractCegarLoop]: Abstraction has 5633 states and 6858 transitions. [2019-10-13 22:47:58,340 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:47:58,340 INFO L276 IsEmpty]: Start isEmpty. Operand 5633 states and 6858 transitions. [2019-10-13 22:47:58,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2019-10-13 22:47:58,347 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:47:58,348 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:47:58,348 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:47:58,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:47:58,349 INFO L82 PathProgramCache]: Analyzing trace with hash -781578350, now seen corresponding path program 1 times [2019-10-13 22:47:58,349 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:47:58,349 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263012279] [2019-10-13 22:47:58,349 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:47:58,349 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:47:58,349 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:47:58,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:47:58,686 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2019-10-13 22:47:58,686 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263012279] [2019-10-13 22:47:58,687 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:47:58,687 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 22:47:58,687 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284561659] [2019-10-13 22:47:58,688 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 22:47:58,688 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:47:58,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 22:47:58,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2019-10-13 22:47:58,689 INFO L87 Difference]: Start difference. First operand 5633 states and 6858 transitions. Second operand 8 states. [2019-10-13 22:47:59,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:47:59,559 INFO L93 Difference]: Finished difference Result 5650 states and 6874 transitions. [2019-10-13 22:47:59,560 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 22:47:59,560 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 329 [2019-10-13 22:47:59,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:47:59,603 INFO L225 Difference]: With dead ends: 5650 [2019-10-13 22:47:59,604 INFO L226 Difference]: Without dead ends: 5647 [2019-10-13 22:47:59,608 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 [2019-10-13 22:47:59,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5647 states. [2019-10-13 22:47:59,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5647 to 5641. [2019-10-13 22:47:59,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5641 states. [2019-10-13 22:47:59,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5641 states to 5641 states and 6860 transitions. [2019-10-13 22:47:59,850 INFO L78 Accepts]: Start accepts. Automaton has 5641 states and 6860 transitions. Word has length 329 [2019-10-13 22:47:59,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:47:59,851 INFO L462 AbstractCegarLoop]: Abstraction has 5641 states and 6860 transitions. [2019-10-13 22:47:59,851 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 22:47:59,851 INFO L276 IsEmpty]: Start isEmpty. Operand 5641 states and 6860 transitions. [2019-10-13 22:47:59,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2019-10-13 22:47:59,863 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:47:59,863 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:47:59,864 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:47:59,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:47:59,864 INFO L82 PathProgramCache]: Analyzing trace with hash 300438309, now seen corresponding path program 1 times [2019-10-13 22:47:59,864 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:47:59,865 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343899366] [2019-10-13 22:47:59,865 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:47:59,865 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:47:59,865 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:47:59,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:48:00,392 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2019-10-13 22:48:00,392 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343899366] [2019-10-13 22:48:00,393 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:48:00,393 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 22:48:00,393 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380061398] [2019-10-13 22:48:00,394 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 22:48:00,394 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:48:00,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 22:48:00,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2019-10-13 22:48:00,395 INFO L87 Difference]: Start difference. First operand 5641 states and 6860 transitions. Second operand 8 states. [2019-10-13 22:48:01,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:48:01,178 INFO L93 Difference]: Finished difference Result 5667 states and 6880 transitions. [2019-10-13 22:48:01,178 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 22:48:01,178 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 345 [2019-10-13 22:48:01,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:48:01,199 INFO L225 Difference]: With dead ends: 5667 [2019-10-13 22:48:01,199 INFO L226 Difference]: Without dead ends: 5664 [2019-10-13 22:48:01,203 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 [2019-10-13 22:48:01,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5664 states. [2019-10-13 22:48:01,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5664 to 5656. [2019-10-13 22:48:01,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5656 states. [2019-10-13 22:48:01,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5656 states to 5656 states and 6867 transitions. [2019-10-13 22:48:01,446 INFO L78 Accepts]: Start accepts. Automaton has 5656 states and 6867 transitions. Word has length 345 [2019-10-13 22:48:01,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:48:01,447 INFO L462 AbstractCegarLoop]: Abstraction has 5656 states and 6867 transitions. [2019-10-13 22:48:01,447 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 22:48:01,447 INFO L276 IsEmpty]: Start isEmpty. Operand 5656 states and 6867 transitions. [2019-10-13 22:48:01,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2019-10-13 22:48:01,461 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:48:01,461 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:48:01,461 INFO L410 AbstractCegarLoop]: === Iteration 15 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:48:01,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:48:01,462 INFO L82 PathProgramCache]: Analyzing trace with hash -972207368, now seen corresponding path program 1 times [2019-10-13 22:48:01,462 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:48:01,462 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140486495] [2019-10-13 22:48:01,463 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:48:01,463 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:48:01,463 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:48:01,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:48:01,848 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 10 proven. 8 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked. [2019-10-13 22:48:01,849 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140486495] [2019-10-13 22:48:01,849 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [684895061] [2019-10-13 22:48:01,849 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 22:48:02,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:48:02,634 INFO L256 TraceCheckSpWp]: Trace formula consists of 3088 conjuncts, 27 conjunts are in the unsatisfiable core [2019-10-13 22:48:02,670 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 22:48:02,889 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 22:48:02,988 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 419 trivial. 0 not checked. [2019-10-13 22:48:02,988 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 22:48:03,782 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 22:48:04,164 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 423 trivial. 0 not checked. [2019-10-13 22:48:04,165 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-13 22:48:04,165 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [9] total 19 [2019-10-13 22:48:04,165 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656929002] [2019-10-13 22:48:04,166 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-13 22:48:04,167 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:48:04,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-13 22:48:04,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2019-10-13 22:48:04,167 INFO L87 Difference]: Start difference. First operand 5656 states and 6867 transitions. Second operand 13 states. [2019-10-13 22:48:06,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:48:06,969 INFO L93 Difference]: Finished difference Result 7466 states and 9182 transitions. [2019-10-13 22:48:06,969 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 22:48:06,970 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 345 [2019-10-13 22:48:06,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:48:07,005 INFO L225 Difference]: With dead ends: 7466 [2019-10-13 22:48:07,005 INFO L226 Difference]: Without dead ends: 7444 [2019-10-13 22:48:07,009 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 706 GetRequests, 688 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2019-10-13 22:48:07,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7444 states.